Esting - GE 750 Instruction Manual

PLACING THE RELAY IN SERVICE
7.7.3 Dielectric
Strength
Testing
7 - 94
 Under subheading
LAST APPARENT PWR DMND
A fully assembled production version of the relay is tested in its metal case. The dielectric
strength of all the input/output terminals are tested with respect to its grounded chassis
and Terminal G12 (safety ground). The test voltage of the tester, from the initial value of
0 V AC, is raised to 1.6 kV AC in such a manner (slowly) that no appreciable transients occur.
The voltage is maintained for 1 minute and is then reduced smoothly to zero as rapidly as
possible. According to IEC255-5, the Hi-Pot test is repeated with a voltage not less than
500 V AC.
A2 METERING
and
MAX APPARENT PWR DMND
FIGURE 7–7: Dielectric Strength Wiring
750 FEEDER MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 7: COMMISSIONING
 
, verify the
DMND APPARENT PWR
values.