Loss Of Excitation - GE G60 Instruction Manual

5 SETTINGS
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PATH: SETTINGS GROUPED ELEMENTS
# LOSS OF
# EXCITATION
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The operating characteristic is shaped out of two offset mho circles shifted down along the imaginary axis as shown below.
Figure 5–84: LOSS OF EXCITATION OPERATING CHARACTERISTICS
GE Multilin
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SETTING GROUP 1(6)

LOSS OF EXCITATION

LOSS OF EXCITATION
FUNCTION: Disabled
LOSS OF EXCITATION
SOURCE: SRC 1
LOSS OF EXCITATION
CENTER 1: 10.00 ohm
LOSS OF EXCITATION
RADIUS 1: 8.00 ohm
EXCITATION V SUPV 1:
Enabled
LOSS OF EXCITATION
PKP DELAY1: 0.050 s
LOSS OF EXCITATION
CENTER 2: 12.00 ohm
LOSS OF EXCITATION
RADIUS 2: 10.00 ohm
LOSS OF EXCITATION
V SUPV 2: Enabled
LOSS OF EXCITATION
PKP DELAY2: 0.500 s
LOSS OF EXCITATION
UV SUPV: 0.700 pu
LOSS OF EXCIT BLK:
Off
LOSS OF EXCITATION
TARGET: Self-reset
LOSS OF EXCITATION
EVENTS: Disabled
X
G60 Generator Management Relay
5.5 GROUPED ELEMENTS
5.5.13 LOSS OF EXCITATION
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.10 to 300.00 ohms in steps of 0.01
Range: 0.10 to 300.00 ohms in steps of 0.01
Range: Disabled, Enabled
Range: 0.000 to 65.535 s in steps of 0.01
Range: 0.10 to 300.00 ohms in steps of 0.01
Range: 0.10 to 300.00 ohms in steps of 0.01
Range: Disabled, Enabled
Range: 0.000 to 65.535 s in steps of 0.01
Range: 0.000 to 1.250 pu in steps of 0.001
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
R
C1 = Center of element 1 = (Zb + X'd) / 2
R1 = Radius of element 1 = Zb / 2
C2 = Center of element 2 = (Xd + X'd) / 2
R2 = Radius of element 2 = Xd / 2
Zb = Base impedance of the machine
X'd = Transient reactance of the machine
Xd = Synchronous reactance of the machine
830711A1.CDR
5
5-131