Schweitzer Engineering Laboratories SEL-311C - Figure 13.3 Phase-To-Phase, Phase-To-Ground, and Two-Phase-To-Ground Fault Test Connections Using Two Current Sources

13.16
SEL-311C Relay Instruction Manual Date Code 20060320
Testing and Troubleshooting
Test Setup
Three Voltage Source and Two Current Source Connections
Figure 13.3 and Figure 13.4 show connections to use when three voltage
sources and two current sources are available. Phase-to-phase, phase-ground,
and two-phase-ground faults may be simulated through use of the connections
shown in Figure 13.3. Three-phase faults may be simulated through use of the
connections shown in Figure 13.4.
Figure 13.3 Phase-to-Phase, Phase-to-Ground, and
Two-Phase-to-Ground Fault Test Connections Using Two Current Sources
Relay Rear-Panel
Voltage and Current Inputs
IB
IA
VA
VB
IB
VA NVC
Three-Phase Voltage
Two-Phase Current Test Sources
IC
VC
IC
IA
IC
VB
IB
IA
121
120
119
118
106105
104
103
102
101