{}

Our Brands

Item count in cart is 0 My Products My Documents
Impact-Company-Logo-English Black-01-177x54
Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.

Search FAQs

{"searchBar":{"inputPlaceholder":"Search by keyword or ask a question","searchBtn":"Search","error":"Please enter a keyword to search"}}
This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.

Please send me the X/R ratio of transformer for 1600kVA Trihal transformer?

The X/R ratio for the 1600kVA Trihal transformer can be calculated using the Trihal electrical characteristics (impedance & losses data) given normally in transformer datasheets
(attached )
values given in transformer datasheet:
-Load losses in Watts (at 75 C),
-No-load losses in Watts, and
-rated impedance voltage = Z%.

then calculation of the X/R ratio can be performed as follows:
we can obtain the R% as follows:
-R% = 100 x
[(Full load loss (W)-no load loss (W))/(transformer rated power (kVA)x1000)]

then using the impedance relation: Z = R+jX,
we can calculate X% = √(Z%² - R%²),
hence you can get X%/R% = X/R ratio.

Remarks:
1) Datasheets for both "standard losses" type and "reduced losses" type Trihal transformers are attached .
Also the impedance value shall be clear on transformer nameplate.

2) an example of above calculation has been attached for your reference.

Best regards.

Did this answer your question?

Explore more
Range:
Trihal
Explore more
Range:
Trihal
Users group

Discuss this topic with experts

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