7/23/2019 Calculation of X to R
1/1
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 gi!en normall" in transformer datasheets
(attached !alues gi!en in transformerdatasheet#
$%oad losses in atts (at ' )*
$+o$load losses in atts* and$rated impedance !oltage , -.
then calculation of the X/R ratio can be performed as follos#e
can obtain the R. as follos#
$R. , 100
2(3ull load loss ($no load loss (/(transformer rated poer
(kVA10004
then using the impedance relation# - , R5X*e can calculate X. ,
7(-.8 $ R.8*hence "ou can get X./R. , X/R ratio
Remarks#1 9atasheets for both :standard losses: t"pe and
:reduced losses: t"pe Trihal transformers are attached
Also the impedance !alue shall be clear on transformer
nameplate
; an eample of abo!e calculation has been attached for "our
reference
![C ! N P Q R R S U V X Y Z U R R Q X Z [ X X \] ^ U _ ] ` R c d d h d d d k j [ X S Z X l ] m \ o R h X q V m X X N R r Q Q R N Z [ \ X h Z X Q R X R Q Y N P] ^ R Q X m Z ` R k U X](https://img.pdfslide.net/doc/110x75/5ab3ebc17f8b9a86428b4d94/c-n-p-q-r-r-s-u-v-x-y-z-u-r-r-q-x-z-x-x-u-r-c-d-d-h-d-d-d-k-j-x.jpg)
