Woodward EGCP-2 - Chapter 3. Electrical Installation and Specifications

Manual 26076 EGCP-2 Engine Generator Control Package
Woodward 19
40
41
Mains/Bus PT Input
Mains PT
K1-B
Mains PT
Disconnect
(Normally
Closed)
(D08)
Local Bus PT
Connect
(Normally
Open)
(D07)
23
24
VIS-145
01-05-21
(+V)
K2-B
A
B or N
K1-A
K2-A
21
22
(+V)
EGCP-2
K1*
K2*
A
Bus PT
A
B or N
B or N
(B for Delta, N for Wye)
(B for Delta, N for Wye)
(B for Delta, N for Wye)
- *K1 SHOWN ENERGIZED
-
*K2 SHOWN DE-ENERGIZED
-
*K1 & K2 RELAYS ARE NOT
NOTES:
SUPPLIED BY WOODWARD
-
*K1 and K2 RELAYS SHOULD
BE CONNECTED AS NORMALLY
OPEN CONTACTS
Multiple Engine
LOM's Applications
Figure 3-7. Utility / Local Bus PT Wiring for Delta and Wye Configuration
Please Note:
1. This wiring diagram must be used when sensing Loss of Mains (LOM) with
multiple units.
2. K1 and K2 relays are not supplied by Woodward.
3. K1 and K2 relays should be connected as normally open contacts
NOTE
Because the same EGCP-2 input is used to sense both the utility and local
bus voltages, the two PT signals must be identical in configuration (WYE or
Delta), phase (A-B or A-N), and amplitude for correct input readings.