29 0 620KB
Transformer Protection
Page 188
2007-08
Author: G. Ziegler
Copyright © Siemens AG 2007. All rights reserved. PTD SE PTI
Transformer: Function principle and equivalent circuits
I1
w1
w2
I2
Φ
U1
Xσ1
R1 U2
U1
Φ σ1 Φ σ2
I1
I ⋅ w + I ⋅ w = I µ ⋅ w1 1 1 2 2
Page 189
2007-08
RTK
I µ