Generated by All in One SEO Pro v5.0.0.1, this is an llms.txt file, used by LLMs to index the site.

# RALE Engineering

Transformer & Inductor Design Software since 1978

## Sitemaps

- [XML Sitemap](https://www.rale.ch/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [x](https://www.rale.ch/2020/01/01/x/) - Hello world!
- [Hello world!](https://www.rale.ch/2023/04/28/hello-world/) - Welcome to WordPress. This is your first post. Edit or delete it, then start writing!

## Pages

- [Home](https://www.rale.ch/) - Rent RALE transformer design software to design any transformer or inductor fast and save up to 20 % materials.
- [RALE's NEWS](https://www.rale.ch/rales-news/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2023/05/tech-03.jpg” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” min_height=”550px” min_height_tablet=”” min_height_phone=”” min_height_last_edited=”on|desktop” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_accordion _builder_version=”4.27.4″ _module_preset=”default” body_font_size=”32px” body_line_height=”1.2em” hover_enabled=”0″ body_font_size_tablet=”28px” body_font_size_phone=”24px” body_font_size_last_edited=”on|phone” global_colors_info=”{}” sticky_enabled=”0″][et_pb_accordion_item title=”7 August 2026 – Added Content to the DESIGN EXAMPLES (Large Transformers, examples no. 4: two distribution transformers with oil tanks” _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]Check out
- [LARGE T - 1005e - Designing a 1600kVA/35kV, 50Hz Distribution Oil Transformer with oil tank](https://www.rale.ch/transformer-and-inductor-design-examples/1467-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]Get the RALE_INPUT-FILE for this design here. TWO DESIGNS EXPLAINED: Designing a 1600kVA,Yyn, 50Hz Distribution TransformerInput :3x35kV+-10%,85kV_50Hz_1min,BIL 120kV, Cu discs –Output: 3x690V,1340A,Cu foil 4×100//4×100 with oil tank plus an additional design at the bottom of this page for which
- [Transformer and inductor DESIGN EXAMPLES](https://www.rale.ch/transformer-and-inductor-design-examples/) - Explore RALE’s free library of transformer & inductor design examples. Download input files and datasheets to speed up your next project.
- [FREE DEMO for potential customers](https://www.rale.ch/free-demo-for-potential-customers/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/03/shutterstock_2435883445-scaled.jpg” background_position=”bottom_right” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]FREE DEMO for Potential Customers Rale offers a wide selection of free DESIGN EXAMPLES and also a FREE DEMO for transformer / inductor designers working in a company which manufactures transformers / inductors. Please proceed
- [Prices - NEU](https://www.rale.ch/prices/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/02/Shutterstock_2220715431-scaled.jpg” background_position=”bottom_left” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_pricing_tables module_class=”equal-height-pricing” _builder_version=”4.27.4″ _module_preset=”default” currency_frequency_line_height=”1.3em” background_enable_color=”off” custom_margin=”||||false|false” custom_padding=”||||false|false” price_font_size_tablet=”35px” price_font_size_phone=”28px” price_font_size_last_edited=”on|phone” price_line_height_tablet=”” price_line_height_phone=”” price_line_height_last_edited=”on|phone” currency_frequency_font_size_tablet=”” currency_frequency_font_size_phone=”14px” currency_frequency_font_size_last_edited=”on|phone” currency_frequency_line_height_tablet=”1.3em” currency_frequency_line_height_phone=”1.3em” currency_frequency_line_height_last_edited=”on|phone” global_colors_info=”{}”][et_pb_pricing_table title=”One Local User” subtitle=”RENTAL VERSION” currency=”CHF/year” sum=”3’600″ _builder_version=”4.27.4″ _module_preset=”default” price_letter_spacing=”0px” currency_frequency_letter_spacing=”0px” custom_padding=”||||false|false” header_font_size_tablet=”21px” header_font_size_phone=”21px” header_font_size_last_edited=”on|tablet” price_font_size_tablet=”” price_font_size_phone=”” price_font_size_last_edited=”on|desktop” price_line_height_tablet=””
- [LeBlanc Transformers](https://www.rale.ch/transformer-and-inductor-design-examples/2717-2/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.27.4″ _module_preset=”default”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]LeBlanc Transformer with 2 Equal Single Phase Loads and 3 Equal Input Phase Currents[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2025/05/LeBlanc.jpg” _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” title_text=”LeBlanc” hover_enabled=”0″ sticky_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″
- [Scott Transformer](https://www.rale.ch/transformer-and-inductor-design-examples/scott-transformer/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]Scott Transformers with 2 equal single phase loads and 3 equal input phase currents[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2025/05/Skott.jpg” _builder_version=”4.27.4″ _module_preset=”default” title_text=”Skott” hover_enabled=”0″ sticky_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]Input Screen for Transformer T1 346V/230V,100A[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″
- [Free transformer software DEMO & Customer Support - ALT](https://www.rale.ch/free-transformer-software-trial/) - Free transformer software trial with RALE. Instantly download our software, create accurate transformer designs in minutes, and get free technical support.
- [Contact us](https://www.rale.ch/contact-us/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/03/shutterstock_2435883445-scaled.jpg” background_position=”top_left” background_blend=”multiply” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” background_pattern_transform=”flip_vertical|invert” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” text_text_color=”#FFFFFF” text_font_size=”50px” text_letter_spacing=”7px” text_line_height=”2.2em” header_font=”|800|||||||” header_text_color=”#FFFFFF” header_font_size=”67px” min_height=”129.2px” custom_margin=”||||false|false” custom_padding=”43px||43px||true|” header_font_size_tablet=”36px” header_font_size_phone=”22px” header_font_size_last_edited=”on|tablet” header_letter_spacing_tablet=”” header_letter_spacing_phone=”1px” header_letter_spacing_last_edited=”on|phone” global_colors_info=”{}”]RALE Engineering GmbH Jurastrasse 58 5430 Wettingen Switzerland[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” custom_margin=”-7px|auto||auto||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” text_font=”|600|||||||”
- [Testimonials](https://www.rale.ch/testimonials/) - [et_pb_section fb_built=”1″ admin_label=”section” _builder_version=”4.21.0″ background_image=”https://www.rale.ch/wp-content/uploads/2023/06/startup-08.jpg” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row admin_label=”row” _builder_version=”4.21.0″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_text_color=”#FFFFFF” text_font_size=”40px” text_line_height=”1.8em” hover_enabled=”0″ text_font_size_tablet=”36px” text_font_size_phone=”24px” text_font_size_last_edited=”on|phone” global_colors_info=”{}” sticky_enabled=”0″]RALE ENGINEERING – since 1978 – WITH MORE THAN 120 SATISFIED CLIENTS WORLDWIDE[/et_pb_text][et_pb_testimonial author=”Gerd Heller” portrait_url=”data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCIgdmlld0JveD0iMCAwIDUwMCA1MDAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+CiAgICA8ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPgogICAgICAgIDxwYXRoIGZpbGw9IiNFQkVCRUIiIGQ9Ik0wIDBoNTAwdjUwMEgweiIvPgogICAgICAgIDxyZWN0IGZpbGwtb3BhY2l0eT0iLjEiIGZpbGw9IiMwMDAiIHg9IjY4IiB5PSIzMDUiIHdpZHRoPSIzNjQiIGhlaWdodD0iNTY4IiByeD0iMTgyIi8+CiAgICAgICAgPGNpcmNsZSBmaWxsLW9wYWNpdHk9Ii4xIiBmaWxsPSIjMDAwIiBjeD0iMjQ5IiBjeT0iMTcyIiByPSIxMDAiLz4KICAgIDwvZz4KPC9zdmc+Cg==” _builder_version=”4.27.4″ _module_preset=”default” job_title=”Technische Leitung” company_name=”RUFA – Transformatorenbau – Kurt Dietze
- [List of Users](https://www.rale.ch/transformer-software-list-of-users/) - [et_pb_section fb_built=”1″ admin_label=”section” _builder_version=”4.27.4″ background_image=”https://www.rale.ch/wp-content/uploads/2025/02/Shutterstock_2220715431-scaled.jpg” background_position=”bottom_left” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Text” _builder_version=”4.21.0″ _module_preset=”default” text_font_size=”40px” text_line_height=”2em” background_layout=”dark” text_font_size_tablet=”36px” text_font_size_phone=”24px” text_font_size_last_edited=”on|phone” global_colors_info=”{}”]RALE ENGINEERING – since 1978 – WITH MORE THAN 120 SATISFIED CLIENTS WORLDWIDE[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” collapsed=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_accordion _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_accordion_item title=”Austria” open=”off” _builder_version=”4.21.0″ _module_preset=”default”
- [CAL12 - low inrush current  three phase universal autotransformer for 10kVA continuous output power as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/953-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK HERE TO GET THE INPUT FILE: RaleInput_012 How should one design a low inrush currentthree phase universal autotransformerfor 10kVA continuous output power as per IEC 61558 ? Technical specification relevant only to design Electrical data and schema Input voltages
- [CAL10 - 100kHz, universal flyback transformer for input voltage125-700Vdc and output power 200W](https://www.rale.ch/transformer-and-inductor-design-examples/cal10-100khz-universal-flyback-transformer-for-input-voltage125-700vdc-and-output-power-200w/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK HERE TO GET INPUT FILE: RaleInput_010 Designing a 100kHz, universal flyback transformerfor input voltage 125-700Vdc and output power 200W The Operating Modes of a Flyback Transformer The following flyback transformer schema illustrates only the parameters relating to its
- [CAL11 - 250kHz, 120W forward transformer with voltage controller,  for input voltage range 200V to 350V, as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/918-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” custom_padding=”||0px|||” global_colors_info=”{}”]CLICK HERE TO GET INPUT FILE: RaleInput_011 How should one designa 250kHz, 120W forward transformer with voltage controller,for input voltage range 200V to 350V,as per IEC 61558? Technical specification relevant only to design Electrical data and scheme: Input voltage
- [CAL009 - 50kHz, 1200VA transformer  as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/cal009-50khz-1200va-transformer-as-per-iec-61558/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK HERE TO GET INPUT FILE: RaleInput_009 How should one design a 50kHz, 1200VA transformeras per IEC 61558 ? Technical specification relevant only to design Electrical data and schema Input voltages Max. 280Vac, square-wave Frequency 50kHz Nominal output voltage 1Nominal output
- [CAL008 - 8000VA transformer for medical premises in accordance with IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/813-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]How should one design an 8000VA transformer for medical premises in accordance with IEC 61558 ? Technical specification relevant only to design Electrical data and diagram Input voltages 230Vac, sinusoidal Frequency 50Hz Nominal output voltage 230Vac Nominal output current 34.8A (8000VA)
- [Install / Update Service Pack](https://www.rale.ch/install-update-service-pack/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/03/shutterstock_2435883445-scaled.jpg” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]Customer Support: How to Install / Update Service Pack Download and install Service Pack for RDS20 to be certain that you have the latest updates for your Rale Design Software (click on the link below). The latest Service
- [FREE Technical Support](https://www.rale.ch/free-technical-support/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/03/shutterstock_2435883445-scaled.jpg” background_position=”bottom_right” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]Free Technical Support for Experienced Customers / Free Training for New Customers A. If you are an experienced customer and need help with your Rale Design Software, please proceed as follows: 1. Write a very
- [Install Rale Design Software](https://www.rale.ch/install-rale-design-software/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/03/shutterstock_2435883445-scaled.jpg” background_position=”top_left” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” width=”100%” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]Customer Support: How to Install the Rale Design Software Open the link for the Rale Design Software CDInstall20 and start the download. Extract it in a new subdirectory. You are the Admin on your
- [Cal0005 - Rectifier safety transformer for feed to voltage controllers of 5Vdc,1Adc and 2x12Vdc,0.1Adc with RC-load in accordance with IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/767-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]How to design a rectifier safety transformer for feed to voltage controllers of 5Vdc,1Adc and 2x12Vdc,0.1Adc with RC-loading accordance with IEC 61558 Technical specification relevant only for design Electrical data and schema Input voltage: 230V, +10%, -10%, sinusoidal Frequency: 50Hz Min.
- [CAL006E - Three-phase rectifier/safety transformer for 24Vdc, 80Adc with RC load, as per IEC 38 and IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/787-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”] CLICK TO GET INPUT FILE: RaleInput_006 How should one design a three-phase rectifier/safety transformer for 24Vdc, 80Adc with RC load,as per IEC 38 and IEC 61558 ? Technical specification relevant only for design Electrical data and schema Input voltage 3
- [CAL007E - Low inrush current universal control transformer for 800VA continuous output power  as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/800-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK TO GET INPUT FILE: RaleInput_007 How should one design a low inrush current universal control transformer for 800VA continuous output poweras per IEC 61558 ? Technical specifications relevant only for design Electrical data and schema Input voltages sinusoidal 210V, 230V,
- [Designing split core current transformer 1000A/0.1A, 10V, 50HZ](https://www.rale.ch/3136-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]Designing a split core current transformer 1000A/0.1A, 10V, 50HZ[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]Get your input file here SCCT_1000A_100mA[/et_pb_text][/et_pb_column][/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]INPUT: A ”normal” current transformer has a very
- [Cal003Ec - Non short-circuit-proof 18VA - low profile safety transformer as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/small-transformers/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” width=”91.9%” custom_margin=”|1011px||auto||” custom_padding=”|0px||||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” min_height=”1578.7px” custom_margin=”|-2px|85px|||” custom_padding=”|0px|0px|171px||” global_colors_info=”{}”]GET YOUR RALE INPUT FILE (click): A_Rale_Input_File_003 How to design a not short-circuit-proof18VA – low profile safety transformer as per IEC 61558,protected by a miniature fuse in accordance with IEC 127 Technical specifications relevant for
- [Designing inherently short-circuit-proof, potted safety transformers up to 10VA with Rale Design system, in accordance with IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/1983-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”|||22px||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]Get your input-file by clicking on EI30-5_750mVA. Designing inherently short-circuit-proof,potted safety transformers up to 10VAwith Rale Design system,in accordance with IEC 61558 Short summary Important conditions and parameters are shown for the calculation of inherently short-circuit proof transformers
- [Cal0004E - 60VA (long stack EI42/98) - non inherently short-circuit proof safety transformer for halogen lamps in accordance with IEC 61558, protected by a thermal fuse](https://www.rale.ch/transformer-and-inductor-design-examples/how-do-we-design-a-60va-long-stack-ei42-98-non-inherently-short-circuit-proof-safety-transformer-for-halogen-lamps-in-accordance-with-iec-61558-protected-by-a-thermal-fuse/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”] How do we design a 60VA (long stack EI42/98) – non-inherently short-circuit proof safety transformer for halogen lamps in accordance with IEC 61558, protected by a thermal fuse ? Technical specifications relevant only for design 1. Electrical data and schema
- [3006e - Designing 3 Phase LC-Filter For Power Factor Correction, 50kVAr, parallel to Rectifier Bridge](https://www.rale.ch/1441-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]Designing 3 Phase LC-Filter For Power Factor Correction50kVAr, parallel to Rectifier Bridge [/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]In the following picture there are 3 typical schemas of the LC resonance filters. The most used is the schema a. The
- [Rale's DESIGN SERVICE - ALT](https://www.rale.ch/rales-design-service/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/05/0-7d8cdbe3-f2c3-4852-97bc-abbe41eecbc9-1280×960.jpg” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” background_color=”#FFFFFF” custom_margin=”0px|||0px|false|false” custom_padding=”|||9px|false|false” global_colors_info=”{}”] Design Service for transformers & inductors – CHF 500 per design Customers get always support for free. Not a customer? No problem. Rale offers a design service for transformers & inductors, e.g. constant
- [Privacy Policy](https://www.rale.ch/privacy-policy/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_code _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][/et_pb_code][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.4em” text_font_size_tablet=”16px” text_font_size_phone=”14px” text_font_size_last_edited=”on|phone” global_colors_info=”{}”]We are using Matomo Analytics on our website Opt-out complete; your visits to this website will not be recorded by the Web Analytics tool. Note that if you clear your cookies,
- [All-in-one transformer design software PRODUCTS](https://www.rale.ch/all-in-one-transformer-design-software-products/) - Rent RALE’s all-in-one transformer design software. Design any transformer fast and save 20 % materials – four modules, one licence.
- [DESIGN EXAMPLES ALT](https://www.rale.ch/examples/) - Explore RALE’s free library of transformer & inductor design examples. Find designs for various transformer types and inductors to guide your projects.
- [Update License](https://www.rale.ch/update-license/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2025/02/Shutterstock_2220715431-scaled.jpg” background_position=”bottom_center” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]Customer Support: License Update Your system informs you 30 days in advance in case your license for the Rale Design Software needs to be up-dated. Get your license up-date here (website with Codemeter). Make sure to use the
- [V/ZZ](https://www.rale.ch/transformer-and-inductor-design-examples/v-zz/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.27.4″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2025/05/VZZ.jpg” _builder_version=”4.27.4″ _module_preset=”default” theme_builder_area=”post_content” title_text=”VZZ” hover_enabled=”0″ sticky_enabled=”0″][/et_pb_image][/et_pb_column][/et_pb_row][/et_pb_section]
- [3007b _ Drainage Choke between 2 parallel connected rectifiers 2x(24Vdc,500Adc) at 50Hz to support good DC current distribution and limit 150Hz current harmonic](https://www.rale.ch/transformer-and-inductor-design-examples/1424-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” custom_padding=”17px|||||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET THE INPUT FILE: RaleInput_307b Drainage Choke between 2 parallel connected rectifiers 2x(24Vdc,500Adc) at 50Hzto support good DC current distribution and limit 150Hz current harmonic [/et_pb_text][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2024/08/CAL30073x.jpg” title_text=”CAL30073x” _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][/et_pb_image][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]This choke
- [Designing 3 Phase LC-Filter For Power Factor Correction, 50kVAr, parallel to Rectifier Bridge - 3006](https://www.rale.ch/transformer-and-inductor-design-examples/1624-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” width=”79.8%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET INPUT FILE: RaleInput_306 Designing 3 Phase LC-Filter For Power Factor Correction,50kVAr, parallel to Rectifier Bridge In the following picture are 3 typical schemas of the LC resonance filters. The most used is the
- [Designing Smoothing Chokes - CAL 3005](https://www.rale.ch/transformer-and-inductor-design-examples/1554-2/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.21.0″ _module_preset=”default”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.21.0″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]Designing Smoothing Chokes The smoothing choke is connected between the rectifier and the DC load. Normally its linear inductance is prescribed up to the nominal peak value of the load current. In some applications there are prescribed 2 values
- [Three Phase Commutation Choke - 3004e](https://www.rale.ch/transformer-and-inductor-design-examples/1609-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]Three Phase Commutation Choke The commutation choke is connected in the front of the rectifier, on the AC side, in order to limit the current rise during current commutation between 2 phases (short circuit operation mode over the commutating choke).
- [3004 - Single Phase Commutation Choke - 3004](https://www.rale.ch/transformer-and-inductor-design-examples/1592-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]GET THE INPUT FILE HERE (CLICK): RaleInput_304a Single Phase Commutation Choke The commutation choke is connected in the front of rectifier, on the AC sid, in order to limit the current rise during current commutation between phase and
- [Designing Power Factor Correction Chokes - 3003](https://www.rale.ch/transformer-and-inductor-design-examples/1537-2/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.21.0″ _module_preset=”default”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.21.0″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]Designing Power Factor Correction Chokes The power factor correction (PFC) choke is used in rectifiers with RC-load in order to provide the first harmonic of the AC input current with the power factor 1 . The frequency of the
- [3007a - Single Phase, 25mH Common Mode Choke in 50Hz net for suppressing up to 50kHz current harmonics](https://www.rale.ch/transformer-and-inductor-design-examples/1381-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” custom_padding=”3px|||||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET THE INPUT FILE: RaleInput_307 Single Phase, 25mH Common Mode Chokein 50Hz net for suppressing up to 50kHz current harmonics Description This choke has 2 windings. Through these windings flow 2 currents: – the
- [3002 - Designing Motor Filter Choke](https://www.rale.ch/transformer-and-inductor-design-examples/1522-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]GET YOUR INPUT FILE BY CLICKING HERE: RaleInput_302 Designing Motor Filter Choke About Motor Filter Choke Fig.1 illustrates the main circuit diagram of a three-phase motor drive. The 3-phase mains Uin supplies the controlled rectifier R through
- [How do we design a toroidal current transformer? - CAL2002](https://www.rale.ch/transformer-and-inductor-design-examples/1572-2/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.21.0″ _module_preset=”default”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.21.0″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]How do we design a toroidal current transformer? General information You need to know: • Nominal input current in A. I1• Nominal output current in A. I2• Output voltage in V Uload or output power P in VA,
- [LARGE TRANSFORMER - Designing a Constant Voltage Stabilizer 2000W, 1000V +-20%/11V+-1%,50Hz short cicuit proof](https://www.rale.ch/transformer-and-inductor-design-examples/2044-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]Designing a Constant Voltage Stabilizer 2000W, 1000V +-20%/11V+-1%,50Hz short circuit proof This stabilizer has 2 magnetic components: Non-linear transformer Linear inductor with compensating winding [/et_pb_text][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2025/03/cvt_SCHEMA.jpg” title_text=”cvt_SCHEMA” _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][/et_pb_image][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]Basic settings for Constant Voltage Stabilizer –
- [Large Transformers: Designing 200kVA, Three Phase Transformer, 400V/400V, 50Hz, DY  with Indirect Water Cooling](https://www.rale.ch/transformer-and-inductor-design-examples/1888-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]Designing 200kVA, Three Phase Transformer, 400V/400V, 50Hz, DY with Indirect Water Cooling (=> Existing users – get your InputFile here) Before reading this design example, please open the following link : https://www.rale.ch/indirect_water_cooled_3_phase_inverter_choke.php and read some information about the main properties
- [LARGE TRAFOS - CAL 1010e - 24 pulse rectifier 4x 600Vdc/1000Adc with 2 dry Dext/YD transformers, driven by 3 x 6000V, 50 Hz](https://www.rale.ch/transformer-and-inductor-design-examples/1909-2/) - [et_pb_section fb_built=”1″ theme_builder_area=”post_content” _builder_version=”4.21.0″ _module_preset=”default”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content”][et_pb_column _builder_version=”4.21.0″ _module_preset=”default” type=”4_4″ theme_builder_area=”post_content”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]Designing the 24 pulse rectifier 4 x 600Vdc/1000Adc with 2 dry Dext/YD transformers, driven by 3 x 6000V, 50Hz (Get your input file here) [/et_pb_text][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” theme_builder_area=”post_content” hover_enabled=”0″ sticky_enabled=”0″]A 24 pulse rectifier has 4, with smoothing chokes ,
- [Large T - CAL 1006 - Designing an autotransformer  for  400Vdc, 1000Adc  with 2 parallel connected rectifiers in 12-pulse operating mode](https://www.rale.ch/transformer-and-inductor-design-examples/1464-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK HERE TO GET INPUT FILE: RaleInput_106 Designing an autotransformer for 400Vdc, 1000Adc with 2 parallel connected rectifiers in 12-pulse operating mode General Information: Technical Specification Input voltage 3 x 400/230V Autotransformer output voltage for Udc = 400Vdc
- [LARGE T - RecTrafos - Creating the Inputs to Design  the Rectifier Transformers](https://www.rale.ch/transformer-and-inductor-design-examples/1226-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” text_font=”||||||||” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″ link_text_color_last_edited=”off|desktop” link_text_color=”#666666″ header_line_height=”1.2em” header_font_size_last_edited=”on|phone” header_font_size_phone=”20px”]Creating the Inputs to Design Rectifier Transformers The input and no-load output voltages of a rectifier transformer normally have sine wave form. Due to the fact that a rectifier is a non-linear load,
- [LARGE T - CAL 109 - Creating a 4 lines 3 phases net in a 3 lines 3 phases net using a Zn-transformer?](https://www.rale.ch/transformer-and-inductor-design-examples/1078-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]Creating a 4 lines 3 phases net ina 3 lines 3 phases net using a Zn-transformer – about the operation mode of a Zn-transformer and its design Typical application schemas of a Zn-transformer is shown in the Fig.1. The Zn-transformer
- [Large T - CAL 1003 - Designing a 3 phase, 50/60Hz rectifier transformer  (YYD) to suppress 5.and 7.current harmonics )  with 2 parallel connected bridge rectifiers  for Udc=400V, Idc=1000A](https://www.rale.ch/transformer-and-inductor-design-examples/1191-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET INPUT FILE: RaleInput_103 Designing a 3 phase, 50/60Hz rectifier transformer (YYD) to suppress 5. and 7. current harmonics with 2 parallel connected bridge rectifiers for Udc=400V, Idc=1000A General Information – Technical Specification Input
- [L Trans - CAL 1002 - Designing a 500 kVA, 50Hz, K-Factor 20, three phase dry transformer with litz & foil](https://www.rale.ch/transformer-and-inductor-design-examples/1157-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET INPUT FILES: RaleInput_102_Foil RaleInput_102_Litz Designing a 500 kVA, 50Hz, K-Factor 20, three phase dry transformer with litz & foil General Information Technical Specifications Input voltage 3 x 400V, delta Output voltage 3 x 400/230V, star
- [Small Transformer - How to design a 50kHz, 240W resonance transformer for an LLC converter - CAL15](https://www.rale.ch/transformer-and-inductor-design-examples/1044-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]CLICK HERE TO GET INPUT FILE: RaleInput_015 How to design a 50kHz, 240W resonance transformer for an LLC converter Typical application schemas of a resonance transformer [/et_pb_text][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2024/02/ResT_Fig1.jpg” title_text=”ResT_Fig1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][/et_pb_image][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2024/02/ResT_Fig2.jpg” title_text=”ResT_Fig2″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][/et_pb_image][et_pb_image src=”https://www.rale.ch/wp-content/uploads/2024/02/ResT_Fig3.jpg” title_text=”ResT_Fig3″
- [CAL14 - Designing non-short-circuit-proof,  low profile safety transformers up to 42VA with Rale Design System, in accordance with IEC 61558, protected by miniature fuse as per IEC 127](https://www.rale.ch/transformer-and-inductor-design-examples/988-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” custom_margin=”||||false|false” hover_enabled=”0″ global_colors_info=”{}” custom_padding=”|20px||20px|false|true” sticky_enabled=”0″][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]CLICK HERE TO GET INPUT FILE: RaleInput_014 Designing non-short-circuit-proof, low profile safety transformers up to 42VAwith Rale Design System,in accordance with IEC 61558,protected by miniature fuse as per IEC 127 Design criteria
- [CAL13 - Motor starting  three-phase autotransformer for 100kVA continuous motor power as per IEC 61558](https://www.rale.ch/transformer-and-inductor-design-examples/964-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”]How should one design a motor startingthree-phase autotransformerfor 100kVA continuous motor power as per IEC 61558? Technical specification relevant only to design Electrical data and schema Input voltages sinusoidal 3 x 400V (phase-phase) Frequency 50/60Hz Nominal output voltage 3 x
- [CAL Large T - CAL 1004e - Designing a 12Vdc, 30kAdc Rectifier Transformer](https://www.rale.ch/transformer-and-inductor-design-examples/1208-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″] CLICK HERE TO GET INPUT FILE: RaleInput_104 Designing a 12Vdc, 30kAdc Rectifier Transformer General Information Technical parameters Input voltage 3 x 400/230, star Transformer output voltages for Udc = 12Vdc 3 x 12.4Vac, star3 x 12.4Vac,
- [Impressum](https://www.rale.ch/impressum/) - [et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_image=”https://www.rale.ch/wp-content/uploads/2023/06/startup-15.jpg” background_enable_pattern_style=”on” background_pattern_style=”honeycomb” min_height=”550px” min_height_tablet=”” min_height_phone=”” min_height_last_edited=”on|desktop” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” background_color=”#FFFFFF” custom_padding=”|20px||20px|false|true” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” header_2_font_size=”24px” header_2_line_height=”1.4em” hover_enabled=”0″ header_font_size_tablet=”28px” header_font_size_phone=”24px” header_font_size_last_edited=”on|phone” header_2_font_size_tablet=”24px” header_2_font_size_phone=”20px” header_2_font_size_last_edited=”on|phone” global_colors_info=”{}” sticky_enabled=”0″] Impressum Responsible for the content Rale Engineering GmbHHardstrasse 47c5430 WettingenSchweizE-Mail: info@rale.chTel.: 0784017311 [/et_pb_text][/et_pb_column][/et_pb_row][/et_pb_section]
- [L Trans - Cal1007e - Designing a 1600kVA/35kV, 50Hz Distribution Oil Transformer and Oil Tank](https://www.rale.ch/examples/1125-2/) - [et_pb_section fb_built=”1″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″] CLICK HERE TO GET INPUT FILE: RaleInput_107 Designing a 1600kVA/35kV, 50Hz Distribution Oil Transformer and Oil Tank General Information In this design the secondary winding is made with Al foil. The primary winding is made with Al rectangular
- [ThemeNcode PDF Viewer SC [Do not Delete]](https://www.rale.ch/themencode-pdf-viewer-sc/) - This page is used for Viewing PDF.
- [ThemeNcode PDF Viewer [Do not Delete]](https://www.rale.ch/themencode-pdf-viewer/) - This page is used for Viewing PDF.

## FlipBooks

- [](https://www.rale.ch/pdfviewer/677/)

## Categories

- [Uncategorized](https://www.rale.ch/category/uncategorized/)