{}

Our Brands

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.

Search FAQs

What is the switch on current (inrush current) of TRIHAL 500 kVA 11000/415 V Dyn 11 transformer?

A "precise" value of the inrush peak current depends on exact transformer data (rating plate information, impedance, etc.).
In attached pages, tabulated data given for liquid-filled & dry type transformers by France-Transfo (including Trihal which is dry type).

Example (for 500kVA Trihal transformer):
Peak inrush current = 10 times the transformer r.m.s rated current;
For 500kVA MV/LV transformer fed at MV side with 11kV, rated current = approximately 26.25A
The peak inrush current to be 262.5A with a decay time constant of approximately 0.25s.

Schneider Electric South Africa

Attachment(s)

Transformer inrush current.pdfTransformer inrush current.pdf [719.28 KB]
Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range: