Woodward 8406-121 User Manual

EGCP-2 Engine Generator Control Package Manual 26174
76 Woodward
Figure 4-18. AC Power Triangle
CT Ratio
 Range: 5—30000 :5
 Scales sensed CT input for Amperage as seen at generator.
 Used for Load Sensing Algorithm.
 (kVA, kW, kVAR, PF)
 Used for Alarms/Shutdowns.
 Overcurrent, kW Limits, Reverse Current, etc.
PT Ratio
 Range: 1—1000 : 1
 Scales sensed PT input to Voltage Levels as measured at the Generator.
 Used in Load Sensing Algorithm.
 (kVA, kW, kVAR, PF)
 Used for Voltage Matching.
 Used for Generator Frequency Detection.
 Used for Alarm/Shutdown sensing.
 Over/Under Voltage
 kW Limits, etc.
Voltage Input
 Range: Wye L-N or Delta L-L
 Set for sensing/transformer used between generator and EGCP-2.
 Defines which calculations will be used for kW, kVA, kVAR, etc.
 Defines the expected input type for voltage levels in the set point menus.
 Sets the label used for all generator and mains voltage Status readings.
 Wye (Star) Generator or Transformer Connection
4 Wire
Volts Line to Neutral expected for all set point menu items requiring voltage
settings.
 Delta Generator or Transformer Connection
3 Wire
Volts Line to Line expected for all set point menu items requiring voltage
settings.
KVA
KW
KVAR
KW/KVA=PF
COS =KW/KVA
KVA^2=KW^2+KVAR^2
KVA= (KW^2 + KVAR^2)

Woodward 8406-121 Specifications

General

Brand	Woodward
Model	8406-121
Category	Control Unit
Language	English