DC System Earth Ground Fault Detection Tester Digital Pressure Calibrator
Brand Name:GDZX
Certification:ISO9001
Model Number:PDF-3000A
Minimum Order Quantity:1
Payment Terms:L/C, T/T, Western Union, MoneyGram
Place of Origin:CHINA
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Location:
Wuhan Hubei China
Address:
No.1 Fenghuangyuan Second Road, Jiangxia District, Wuhan City, Hubei Province, China
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Product Details
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Product Details
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.
Main characteristics:
- Simple to use. The instrument can be used directly by turning on the power switch, no other key operations are required.
- Safe and reliable. This instrument does not need to stop the floating charger and all other power sources, and has no effect on the DC system.
- There are many applicable voltage levels. DC system 220V, 110V, 48V, 24V can be used.
- Wide application range. Any type of power supply department such as power plants, substations, coal mines, and chemical plants can be used.
- Convenient to carry, the signal receiver has its own battery, no external power supply is needed, and it can be carried anywhere to find the grounding point.
- The DC system is constantly powered to find the grounding point, which does not affect the normal operation of the system.
- Strong anti-interference ability, overcoming the influence of distributed capacitance of the system.
- Intelligent charging management reduces charging time and prolongs battery life.
Technical indicators:
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
B.Signal receiver
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
For more information , click this link to send us inquiry now !
Product pictures:
Our company :
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 .
DC System Earth Ground Fault Detection Tester Digital Pressure Calibrator
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