60
SVERKER 750/760
Programma Electric AB
ZP-CD01E R05A
7.4 Testing power
relays
P: Active power
α
= 0°
Q: Reactive power
α
= 90° (phase-shifting capacitor in
current circuit)
6. If the freeze function has been activated,
press the HOLD button twice to unfreeze
the value shown.
7. Decrease the voltage until drop-out takes
place (U> OFF), whereupon the TRIP
indicator will be extinguished.
8. Read the U > OFF value from the display
window.
Finishing the test
1.Enter the values read from the display into
the test report.
2.Turn off power to Sverker using the mains
switch.
3.Disconnect the equipment.
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