HVHIPOT GDF-3000A DC System Earth Fault Ground Fault Tester Detector

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 year
• Model NO.: GDF-3000A
• Type: Earth Fault Tester
• Accuracy Grade: 1
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: AC220V
• Working Voltage: DC 40-300V.
• Environment temperature: -20℃—55℃
• Relativity humidity: 0~90%
• DC voltage measurement range: 0-300V
• Insulation resistance measurement range: 0-500KΩ
• Number of spectrum analysis channels: 1
• Transport Package: Standard Export Wooden Box
• Trademark: HV Hipot
• Origin: Hubei, China
• HS Code: 9030899090
• Production Capacity: 5000set/Year

Product Description

GDF-3000A DC System Earth Fault Ground Fault Tester Detector

General information

DC system insulation faults, DC mutual faults and AC power failures are faults that are prone to occur and are harmful to the power system, and endanger the normal operation of the power system.
In order to better help field maintenance personnel to quickly and accurately find DC faults, our company has developed a DC fault finder by years of efforts and summing up a large number of field experiences.
The DC grounding finder uses a high-precision current clamp meter to detect and locate faults using the DC current difference in the fault loop. The fast FFT transform technology is introduced into the DC fault finding device, to detect various types of insulation faults, DC mutual faults, and AC power failures in DC systems with different voltage level (24V,48V,110V,220V).

Main functions

(1) System-to-ground voltage measurement function, the instrument can measure the system-to-ground voltage, negative-to-ground voltage, system voltage, and can realize the voltage monitoring range of 0-300V;
(2) System insulation impedance measurement function, the instrument can measure the insulation resistance of the system to ground, the negative insulation resistance to the ground, the balance bridge size detection, the measurement range is 0-999.9KΩ;
(3) AC power detection function, the instrument can judge the AC power failure in the DC system, and can measure the AC voltage value in the DC system, the AC voltage measurement range is 0-280V;
(4) System distributed capacitance measurement function, the instrument can measure the distributed capacitance of the system and display in real time;
(5) Ring network detection and positioning function, the instrument can detect various ring network faults in the two bus bars, including positive ring, negative ring, bipolar ring and bipolar ring, etc., and can be realized by waveform display and direction display to locate  the fault point of the ring network;
(6) The device has amplitude modulation, reset, current waveform selection and working mode selection function, which can realize the search and location of high resistance ring network faults.
(7) Branch insulation resistance measurement and insulation fault location function, the instrument measures the insulation resistance of each branch to ground, and can realize the location of insulation fault points through waveform display and direction display;
(8) Fault current spectrum analysis function, the device effectively extracts the signal amplitude of the measured current frequency point, and improves the detection precision by spectrum analysis function of current change with fast FFT transform ;
(9) Ammeter function, the device can be used as a high-precision ammeter, and the current measurement resolution can reach 0.01mA;
(10) Waveform curve display and direction display function. When using the detector to detect the measured branch, it will display the current change of the measured branch in the form of a waveform curve on the screen, which is convenient for the user to realize the fault point quickly and accurately. Find the direction of the fault point when there is a ring fault and a ground fault.


Features
 

1. High reliability design
2. Precision material selection
3. Humanized human-computer interaction interface
4. Intelligent detection and recognition system
5. Complete testing function and ability to handle faults
6. High security

Technical Specifications
 

Specifications of Analyzer
Working Voltage	DC 40-300V.
Environment temperature	-20ºC-55ºC
Relativity humidity	0-90%
DC voltage measurement
DC voltage measurement range	0-300V
DC voltage measurement resolution	0.1V
DC voltage measurement accuracy	0.2%
AC voltage measurement
Measurement AC and DC stripping electric voltage	0-280v
AC voltage measurement resolution	0.1V
AC voltage measurement accuracy	0.5%
Insulation resistance measurement
Insulation resistance measurement range	0-999.9KΩ
Insulation resistance measurement resolution	0.1KΩ
Insulation resistance measurement accuracy	≤±5%
Detect bridge amplitude adjustment range	0mA,0.25mA,0.5mA ,1mA,2mA
Detect ring network resistance range	less than 50KΩ
System distributed capacitance measurement
System distributed capacitance measurement range	0-999.9uF
System ground resistance measurement	0-1000kΩ
Detection waveform type selection	sine wave, square wave
Working mode	forced signal start, automatic signal start
Display media and resolution	TFT, 320x240
Specifications of Detector
Insulation resistance measurement
Insulation resistance measurement range	0-500KΩ
Insulation resistance measurement resolution	0.1KΩ
Insulation resistance measurement accuracy	≤±10%
Spectrum analysis range
Number of spectrum analysis channels	1
Spectrum analysis frequency range	0.125-12.5Hz
Frequency resolution	0.125Hz
Current waveform display period	8s;
Detectable feeder current range	0-2A;
Current measurement range	-100-+100mA;
Current measurement resolution	0.01 mA
Display media and resolution	TFT, 320x240
Wireless communication technical indicators
Rate	2Mbps, because the air transmission time is very short, the collision phenomenon in wireless transmission is greatly reduced.
Multi-frequency point	125 frequency points, meeting the needs of multi-point communication and frequency hopping communication
Ultra-small	built-in 2.4GHz antenna, small size, 15x29mm
Low power consumption	When operating in the answer mode , fast air transmission and start up time greatly reduce current consumption