Used to accurately locate the grounding point of the DC system in power plants and substations under continuous power supply. All types of grounding faults can be quickly located with an accuracy rate of 100%.

1. Signal generator

l Output signal frequency: 2.5Hz

l Signal no-load output voltage: ± 20V ± 5%

l Signal voltage amplitude error:<5%

l Short circuit signal output current: ≤ 80mA

l Output port shock resistance: 400V DC shock

l Power supply voltage: AC220V ± 10%

l Voltage frequency: 50Hz ± 5%

l Input insurance: 200mA

l Maximum power: 3W

l Volume: 300mm × 270mm × 200mm

2. Signal receiver

l Signal current detection sensitivity: 0.5mA

l Signal generator impedance: 40K

l Maximum output current: 2.5mA

l Receiver display: digits 0-19

l Volume: 210mm × 100mm × 32mm

l A jaw size: Φ 50mm

l B jaw size: Φ 7mm × 9mm

3. Whole machine

l Maximum grounding resistance detected: 300K Ω

l Maximum capacitance detected: 20 μ F

l Grounding resistance measurement accuracy: 0-4.5K Ω, error ≤ 0.5K Ω

l Grounding capacitance detection range: 3-60uF

l Grounding capacitance measurement accuracy: 3-10uF, error ≤ 1uF