Payment & Shipping Terms:
|Voltage Frequency:||50Hz±5%||Input Fuse:||200mA|
|Signal Voltage Amplitude Error:||<5%||Output Signal Frequency:||2.5Hz|
|Power Supply:||Battery||Measuring Range:||0-300KΩ|
|Usage:||Auto Testing Machine|
Earth Ground Fault Detection Tester,
DC System Fault Detection Tester,
DC System Digital Pressure Calibrator
DC System Earth Ground Fault Detection Tester Digital Pressure Calibrator
Product Introduction :
The PDF-3000A DC system ground fault tester is used to find the accurate location of the DC system grounding point in power plants and substations under uninterrupted power conditions. In principle, the instrument introduces a brand-new detection method—waveform analysis. Its main features and advantages: high detection sensitivity, strong ability to check the distributed capacitance of the system, uninterrupted power search, does not affect the normal operation of the system, and anti-interference ability Strong, safe and reliable, etc.
The waveform analysis method is to add a specific periodic voltage signal between the DC bus and the ground, detect the current of each branch through a caliper probe, analyze and calculate the phase and phase difference between the fundamental wave and the harmonic of the current signal, and then Determine whether there are ground faults and ground fault points.
This device is composed of three parts: signal generator, signal receiver and signal collector (caliper). When looking for faults in the DC system, the three must be used together.
A. Signal generator
1. Output signal frequency: 2.5Hz
2. No-load signal output voltage: ±20V±5%
3. Signal voltage amplitude error: <5%
4. Signal short-circuit output current: ≤80mA
5. Impact resistance of the output port: 400V DC impact
6. Power supply voltage: AC220V±10%
7. Voltage frequency: 50Hz±5%
8. Input insurance: 200mA
9. Power: 3W
10. Volume: 300mm×270mm×200mm
1. Signal current detection sensitivity: 0.5mA
2. Signal generator impedance: 40KW
3. Output current: 2.5 mA
4. Receiver display: numbers 0-19
5. Volume: 210mm×100mm×32mm
6. A jaw size: Φ50mm
7. B jaw size: Φ7mm×9mm
C. Machine parameters
1. Detection of grounding resistance: 300KΩ
2. Detection capacitance: 20μF
3. Grounding resistance measurement accuracy: 0-4.5KΩ, error ≤0.5KΩ
4. Grounding capacitance detection range: 3-60uF
5. Grounding capacitance measurement accuracy: 3-10uF error ≤1uF
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Wuhan GDZX Power Equipment Co.,ltd is the supplier of the State Grid in China.It means we are the supplier of the Chinese Government.And our products spread throughout the whole China.
What's more, our customers come from different countries like America, England, Peru , Malysia, Vietnam ,Singapore and so on.
Our main products are High voltage tester , Cable Fault Locator, Power Quality Analyzer, Standard Power source , Testing Transformer and so on.
Packaging & Delivery
1. Delivery within 8-15 work days
2. After-sale service:. Any questions or problems after receiving the product, please feel free to contact us. Problems would be solved for you immediately.
3. Experienced and professional logistic agent .
Contact Person: firstname.lastname@example.org