Page 384 - Industrial Power Engineering and Applications Handbook

Switchgear and controlgear assemblies 13/359

(Contd.) To switch yard From previous page To switch yard
A
r
Match line
Generator ' 132kV/33kV or 6.6 kV
transformer I Station transformer

transformer-1 transformer-2

Station
bus j
duct
i-----------.

H.T. breaker H.T. breaker i H.T. breaker
3kV/1 1 kV/6.6kV 33 kV/11 kV
Tie-connection or 6.6 kV
I
I I I
Tie-connection

Unit H.T. board

/

Unit L.T.
Unit L.T. transformer i Station L.T.
transformer transformer
i
-
C
._ 0
Unit L.T. board tj

loads
, Unit side Station side
Legend:
- Three phase two - Isolator
winding transformer

- Three phase two winding 1
transformer with - Isolator
ON-load tap changer
(z transformer (ICT) ($
& - Inter connecting tie
- Motor
- Circuit breaker
load

Figure 13.21 (Contd.)