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4 impedances that cause earth ground faults, 4 impedances that cause earth ground faults -5 – SilentKnight 5808 User Manual

Page 158

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IntelliKnight 5808 Installation Manual

151274-L8

10-5

10.4 Impedances that Cause Earth Ground Faults

Table 10-1 show the minimum impedances that cause an earth ground fault on this system.

Table 10-1: Earth Ground Faults in Ohms

TERMINAL

LOW BIASED

HIGH BIASED

(values in kohms)

high trip

high restore

low trip

low restore

NAC 1 -

0

0

NAC 1 +

0

0

NAC 2 -

0

0

NAC 2 +

0

0

NAC 3 -

0

0

NAC 3 +

0

0

NAC 4 -

0

0

NAC 4 +

0

0

SBUS -

0

0

SBUS +

0

0

SBUS A

0

0

SBUS B

0

0

SLC IN -

0

0

SLC IN +

0

0

SLC OUT -

0

0

SLC OUT +

0

0