DJJ-1 type DC grounding detection deviceDetailed product description：

The DJJ-1 DC grounding detection device is a specialized tool used in power systems to locate DC grounding faults. The operation does not affect the operation of the equipment, and the grounding point is detected under continuous DC power supply. The high impedance output of this instrument does not affect the normal operation of the DC bus. This device consists of two main parts: a signal source and a detector.

Main performance indicators
1. Device sensitivity ≥ 20k Ω
2. The signal source power supply uses AC 220V ± 10% 50Hz
3. Probe caliper meter power supply ± 9V
4. Can measure 220V, 110V, 48V DC grounding
When measuring 220V and 110V DC grounding, set the amplitude of the signal source output to U. If the sensitivity is too high, set the amplitude to 1/2U.
When measuring 48V DC grounding, set the signal source output to 1/2U amplitude.
7. Good anti-interference performance.