Wye Synchro/Power Control Connection - GE PACSystems RX3i User Manual

WYE Synchro/Power Control Connection

Public Grid
Connections
L1
CTs
L2
L3
N
CT Shorting
Block
GFK-2749
In the following figure the PSM system is connected between two systems, the Public Grid
and Generator sub-systems. This connection scheme gives the PSM module all the
information needed to make decisions about paralleling the two grids. Fuses on the PT
primaries and secondaries are required. A fuse failure indicates wiring problems within the
system.
Breaker
Ia1+
Ia1-
Ib1+
Ib1-
Ic1+
Ic1-
PTs
Va1
Vb1
Vc1
1A Fuses on
secondary
COM1
Chapter 2 Installation
To Load
Breaker
Ia2+
Ia2-
Ib2+
Ib2-
Ic2+
Ic2-
CT Shorting Block
Va2
Vb2
Vc2
1A Fuses on
secondary
COM2
Frame Ground
CTs
PTs
2
Generator
G
Frame
Ground
2-17