DC System Earth Ground Fault Detection Tester 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.

About GDZX
 

Wuhan GDZX Power Equipment Co.,Ltd. is located in Wuhan, China, covering an area of 50 acres, with 6,000 m2 of factory space and 12,000 m2 of office buildings. We specialize in power testing equipment, engineering services, equipment commissioning, operations and maintenance testing, calibration, energy-saving and environmental protection equipment, and power sales. Our integrated solutions provide complete high-voltage testing and electrical inspection services to various power users.

Guodian Zhongxing integrates R&D, production, sales and service, and provides complete solutions for high voltage testing and electrical testing services for all types of power users. It is a well-known brand of electrical testing equipment in China.

The six major categories of products independently developed and produced by the company are mainly used in the handover test, preventive test, condition maintenance and intelligent substation detection of various voltage levels of power equipment in all links of the power system from power generation, transmission and distribution to distribution, factory inspection and annual inspection of primary equipment. Specifically divided into: high voltage/ultra-high voltage/ultra-high voltage AC and DC test equipment series, mobile power test intelligent integrated system, transmission and transformation test instrument, power metering/standard series, SF6 gas/oil test series, battery test series. All products have passed the inspection or type test of the "National Power Industry Electrical Equipment Quality Inspection and Testing Center"; and obtained the calibration certificate of the "National High Voltage Metering Station".