Ask
Login
0
6.9kviews
A 5 KVA, 1000/200V, 5Hz single phase transformer gave the following test result.
written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

A 5 KVA, 1000/200V, 5Hz single phase transformer gave the following test result.

OC Test(hv side) 1000 V 0.24 A 90 W
SC Test(hv side) 50V 5 A 110 W

Mumbai University > FE > Sem 1 > Basic Electrical and Electronics Engineering

Marks: 8 M

Year: May 2015
basic electrical engineering
ADD COMMENT EDIT
1 Answer
2
998views
written 9.4 years ago by gravatar for teamques10 teamques10 ★ 70k

5 KVA, 1000/200V, 5Hz

Open circuit test:-

$V_1=1000V, \\ I_0=0.24A, \\ W_0=90W \\ \cos \emptyset_0=\dfrac{W_0}{V_1R_0}=0.375 \\ \emptyset_0=67.98^0 ; \sin \emptyset_0=0.927 \\ R_0=\dfrac{V_1}{I_0 \cos\emptyset_0}=\dfrac{1000}{0.24\times0.375}=11.1111 k \Omega$
ADD COMMENT EDIT
Please log in to add an answer.