I-Gard GCHK-100, Instruction Manual

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GCHK-100 Instruction Manual I-GARD
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Table 7.3 GROUND faUlT TRip Delay SeTTiNGS
function Setting 1 2 3 4 5 6 7
Switch2 0.02 s 0 0 0
Ground Fault 0.1 s 0 0 X
Delay 0.2 s 0 X 0
Settings 0.5 s 0 X X
1 s X 0 0
2 s X 0 X
5 s X X 0
10 s X X X
Note:
X indicates switch is on.
Trip Delay Tolerance: -2 / +5 ms or ±2.5% of trip delay, whichever is greater
Once a Ground Fault is detected, the trip delay counter begins to time the trip interval. If the ground fault
disappears for the duration specified in the table below or more, the timer is reset and the relay does not trip.
Table 7.4 GROUND faUlT Delay ReSeT iNTeRvalS
Trip Delay Clearance interval (duration of time, fault-free, that is required to
prevent triggering a Gf trip)
0.02 s Does not clear
0.1 s 18.3 ms
0.2 s 38.3 ms
0.5 s 98.3 ms
1 s 196.6 ms
2 s 398.3 ms
5 s 398.3 ms
10 s 398.3 ms
ground Check
The ground check trip level can be adjusted using dipswitch 1, switches 4 and 5. Four resistance levels are
available as shown in Table 7.5