GE UR series

5-112 L60 Line Phase Comparison System GE Multilin
5.5 GROUPED ELEMENTS 5 SETTINGS
5
Refer to chapter 9: Application of settings for the calculation examples for the phase comparison element.
In single phase comparison schemes, coincidence of the local and remote squares is detected during half the power cycle
only, positive or negative. As a result, some delay in operation can be expected under unfavorable fault inception. This
weakness of the single phase comparison schemes is eliminated in dual phase comparison schemes but cost of the com-
munication link is higher.
Table 5–13: 87PC OSCILLOGRAPHY CHANNELS
CFG FILE LABEL DESCRIPTION
X1: IA Phase A of the F module CT bank
X2: IB Phase B of the F module CT bank
X3: IC Phase C of the F module CT bank
X#: IA Phase A of the X module CT bank
X#: IB Phase B of the X module CT bank
X#: IC Phase C of the X module CT bank
87PC BKR1 Current Effective mixed operating signal of BKR1
87PC BKR1 POS Positive current pulse for the first breaker
87PC BKR1 NEG Negative current pulse for the first breaker
87PC BKR1 Mag Magnitude of the effective operating signal of BKR1
87PC BKR1 FDL Low-set fault detection for the first breaker
87PC BKR1 FDH High-set fault detection for the first breaker
87PC BKR2 Current Effective mixed operating signal of BKK2
87PC BKR2 POS Positive current pulse for the second breaker
87PC BKR2 NEG Negative current pulse for the second breaker
87PC BKR2 Mag Magnitude of the effective operating signal of BKR2
87PC BKR2 FDL Low-set fault detection for the second breaker
87PC BKR2 FDH High-set fault detection for the second breaker
87PC POS Positive current local pulse for both breakers
87PC NEG Negative current local pulse for both breakers
87PC FDL Low-set fault detection for both breakers
87PC FDH High-set fault detection for both breakers
87PC Rx1P Voltage Received pulse (voltage) on channel 1P
87PC Rx1P Received pulse on channel 1P
87PC Rx1N Voltage Received (voltage) on channel 1N
87PC Rx1N Received pulse on channel 1N
87PC Rx2P Voltage Received pulse (voltage) on channel 2P
87PC Rx2P Received pulse on channel 2P
87PC Rx2N Voltage Received pulse (voltage) on channel 2N
87PC Rx2N Received pulse on channel 2N
87PC POS Aligned Aligned (delayed) local positive pulse
87PC NEG Aligned Aligned (delayed) local negative pulse
87PC Rx1P Aligned Received and conditioned pulse on channel 1P
87PC Rx1N Aligned Received and conditioned pulse on channel 1N
87PC Rx2P Aligned Received and conditioned pulse on channel 2P
87PC Rx2N Aligned Received and conditioned pulse on channel 2N
87PC POS Int Input Input of the positive integrator
87PC NEG Int Input Input of the negative integrator
87PC POS Integrator Positive integrator in (degrees)
87PC NEG Integrator Negative integrator in (degrees)