Woodward EGCP-2 - Figure 4-7. Mains Parallel Unit with Voltage;Frequency Detect; Figure 4-8. Mains Parallel Unit(S) with Load Surge Detect

Manual 26086 EGCP-2 Engine Generator Control Package
Woodward 83
Standard Sequence: Single Mains Parallel Unit Running On Load in Auto with Loss Of Mains
Detection Enabled.
TIME
Mains in Spec.
LOM Action Delay Starts Mains Out of Spec*
*Over/Under Frequency
and/or Over/Under
Voltage
LOM Action Delay Expires
Open Mains Breaker
Genset On Load
Mains in Spec.
Mains Stable
Delay
Synchronize and Close
Mains Breaker
Open Gen. Breaker
Mains In Spec and
On Load
Generator
Unload Ramp
Generator On Load
in Baseload or
Process Control Mode
VIS-112
00-04-27
Figure 4-7. Mains Parallel Unit with Voltage/Frequency Detect
Standard Sequence: Single Mains Parallel Unit Running On Load in Auto with Loss Of Mains
Detection Enabled. Load Surge Event
TIME
Mains in Spec.
Load Surge Level
Exceeded*
* Load Surge detection is
immediate.
Open Mains Breaker
Genset On Load
Mains in Spec.
Mains Stable
Delay
Synchronize and Close
Mains Breaker
Open Gen. Breaker
Mains In Spec and
On Load
Generator
Unload Ramp
Generator On Load
in Baseload or
Process Control Mode
VIS-113
00-04-27
Figure 4-8. Mains Parallel Unit(s) with Load Surge Detect