Ground fault detection circuit PC13 Ground fault detection board ROSSHILL
Detects AC and DC grounding busbar at 600V testing, including three table lamps and AC and DC grounding.
If normal, the three lights were orange, ground table 0.
If the AC one phase ground fault, the three lights brightness changes, darker light that is ground fault located
phase.
AC ground set the offset of the detection table, when the leakage reaches setting effects, the trigger relay,
Driller room ground fault lights.
DC systems without ground fault, the DC grounding Table 0. Positive ground the pointer right side, the negative pole
The pointer to the left side. When the pointer with the set value (red pointer) coincides with the driller room ground fault lights.
Note: Ground fault that is in contact with the main land, resulting in the main line insulated low. If the ground is not good, (absolute
Margin too small) leakage phenomenon occurs, it will cause dangerous phase, leakage, short-circuit.
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