5-76
G650 Generator Protection & Control System
GEK-113285A
5.4 PROTECTION ELEMENTS
5 SETTINGS
5
5.4.10.2 POWER FACTOR LIMITING (55).(FOR ENHANCED MODELS ONLY)
This element allows the user to protect the machine against power factor values out of limits. The element has two stages
which can be used as alarm or as trip.
Table 5–75: POWER FACTOR LIMITING ELEMENT SETTINGS
PF lag/Lead Stg level settings are cos
ϕ
values
•
Power Factor Function
: This setting allows enabling or disabling the Power Factor Limiting element.
•
PF Lead Stg # Level
: This setting defines the value of lead three-phase power factor to operate.
•
PF Lag Stg # Level
: This setting defines the value of lag three-phase power factor to operate.
Table 5–76: POWER FACTOR LIMITING INTERNAL SIGNALS
SETPOINT > PROTECTION ELEMENTS > POWER > PWR FACTOR LIMITING >
PWR FACTOR LIMITING 1> PWR FACTOR LIMITING 2 > PWR FACTOR LIMITING 3
SETTING DESCRIPTION
NAME
DEFAULT VALUE
STEP
RANGE
Function permission
Function
DISABLED
N/A
[DISABLED – ENABLED]
Pickup level for PF Lead Stage1
PF Lead Stg1 Level
0.99
0.01
[0.05 : 0.99]
Pickup level for PF Lag Stage1
PF Lag Stg1 Level
0.80
0.01
[0.05 : 0.99]
Trip time for PF Stage1
PF Stg1 Trip Delay
1.0
0.1 s
[0.2 : 300.0]
Pickup level for PF Lead Stage2
PF Lead Stg2 Level
0.99
0.01
[0.05 : 0.99]
Pickup level for PF Lag Stage2
PF Lag Stg2 Level
0.75
0.01
[0.05 : 0.99]
Trip time for PF Stage2
PF Stg2 Trip Delay
1.0
0.1 s
[0.2 : 300.0]
Snapshot Event generation
Snapshot Events
ENABLED
N/A
[DISABLED – ENABLED]
SIGNAL
COMMENT
POWER FACTOR 1 (2, 3)
BLOCK
Input used to block the (1, 2, 3) element externally
(configurable in "Setpoint>Relay
Configuration>Protection Elements")
PF 1 (2, 3) LAG STG1 OP
Output used to indicate lagging power factor value
above stage 1 setting
PF 1 (2, 3) LEAD STG1 OP
Output used to indicate leading power factor value
above stage 1 setting
PF 1 (2, 3) LAG STG2 OP
Output used to indicate lagging power factor value
above stage 2 setting
PF 1 (2, 3) LEAD STG2 OP
Output used to indicate leading power factor value
above stage 2 setting
PF 1 (2, 3) LAG OP
Output used to indicate lagging power factor
operation (stage 1 or stage 2)
PF 1 (2, 3) LEAD OP
Output used to indicate leading power factor
operation (stage 1 or stage 2)
Summary of Contents for Multilin G650
Page 9: ...8 G650 Generator Protection Control System GEK 113285A TABLE OF CONTENTS ...
Page 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
Page 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Page 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
Page 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...