Technical Guide P92x/EN GS/E11
Getting Started
MiCOM P921-P922-P923 Page 13/18
aB
12. QUICK MEASUREMENT CHECK
12.1 Voltage
Switch off power supply.
Connect a single phase voltage to terminals 41 and 42 (VA voltage) and set to 0 V.
Switch on power supply and set as before. Switch on the AC voltage.
Press 2 once, 6 twice, 2 once to read the magnitude of the voltage on phase A.
Raise the voltage to rated volts. The LCD will show the voltage measurement in
primary volts : divide by the set ratios to check accuracy.
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