GE 750 Instruction Manual page 319

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Placing the Relay In Service
Feeder Management Relay
Dielectric Strength
A fully assembled production version of the relay is tested in its metal case. The
Testing 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 2 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.
FIGURE 7–7: Dielectric Strength Wiring
GE Multilin
7–65
http://www.GEmultilin.com