GD-4138 Series Cable Fault Locating System

• Output type: DC withstand, single discharge, periodic discharge
• DC HV output: 0-16kV, 0-32kV, 0-8kV
• Transport Package: Standard Export Plywood Case
• Specification: ISO
• Trademark: HV Hipot
• Origin: Wuhan, China
• Model NO.: GD-4138

Product Description

GD-4138 Series Cable Fault Locating System


Features:
 

1. Multiple ranging methods: low voltage impulse method, impulse current method, multiple pulse method: current sampling, DC output.
2. Types of sampling signals: DC arc reflection method, current sampling, voltage sampling, low voltage pulse.
3. It integrates a DC high-voltage generator, high-voltage capacitor, automatic high-voltage sphere gap, arc stabilization unit and various signal collection into one, easy to operate fault location system.
4. Quickly locate and pin point low-resistance, high-resistance leakage faults and flashover faults of various 220V~220KV voltage power cables.
5. No complicated wiring is required for on-site testing. All test methods are switched automatically by weak current control internal high-voltage switch.
6. Integrate multi level DC high voltage generator, multi level high-voltage capacitors, arc stabilization unit and various signal collection into one, easy to operate fault location system.
7. Multi-output high-voltage switching is controlled by internal low-voltage weak current, which is safe and reliable.
8. The structure of the equipment is made of high-strength plastic case. The case is the outer box of the device and the transfer box for the package of the device. The transfer turnover is convenient. The cover can be directly loaded and transferred.
9. Sphere gap impulse discharge: Weak current control solenoid valve air gap, the discharge period is adjustable from 3 to 12 seconds, and a special silencer is designed to meet the requirement of mute at the beginning of the cable fault.
10. The device has a built-in discharge circuit. After turning off the high voltage after the fault test is completed, just press the button at the discharge position to automatically discharge.
11. The host can provide a ranging resolution of up to 0.4m. The measurement dead zone is small, which is particularly effective for near-end faults and short cables.
12. All the output terminals of the equipment are all arranged on a rear panel, and the wiring is convenient, and the wiring diagrams of various wiring methods are drawn on the operation panel, which can be easily wired and used by those who have no experience in use.
13. There are 4 high-strength sliding wheels on the bottom of the device, which can be pushed and stacked.
14. The host uses a 7-inch large-screen LCD with a viewing angle of 160°, and the display content is rich and intuitive.
15. A large number of waveforms can be stored in the host, and the U disk can be used to import and export waveform data.
16. The host can be connected to a computer (desktop or laptop) for online communication.
17. The main unit will weaken the backlight when there is no operation within 2 minutes; it will automatically shut down after 10 minutes of no operation to reduce power consumption; when the battery is under voltage, the instrument will automatically shut down to protect the battery.
18. The main unit has a built-in polymer lithium ion battery, which is equipped with a special lithium battery charger to provide a reliable charging method.
19. The whole machine adopts the integrated transfer box structure design, which is compact and sturdy, especially suitable for use on the construction site.

Technical Parameters
 

Model	GD-4138L	GD-4138M	GD-4138H
Test type	DC arc reflection, current sampling, DC output		arc reflection, DC arc reflection, current sampling, DC output
Types of sampling signals for ranging	Multi-pulse arc reflection, current sampling, low voltage impulse		Arc reflection, DC arc reflection, current sampling, DC output
DC HV output	0-16kV negative polarity,    max. output current: 152mA	0-32kV negative polarity, max. output current: 76mA	0-8kV negative polarity, max. output current: 304mA 0-16kV negative polarity, max. output current: 152mA 0-32kV negative polarity, max. ouput current: 76mA
Pulse flash electrical capacitry	0-16kV, 8μF Max. output energy 1024J	0-32kV, 4μF Max. output energy 2048J	0-8kV 32μF, max. output energy 1024J 0-16kV 8μF, max. output energy 1024J 0-32kV 4μF, max. output energy 2048J
Automatic sphere gap discharge	Weak current control, the discharge period is adjustable from 3 to 12 seconds, and a special silencer is provided to meet the requirement of mute at the beginning of the cable fault.
Output type	DC withstand, single discharge, periodic discharge
DC hipot	16kV	32kV	32kV
Allowed input impulse voltage	16kV	32kV	32kV
Allowed input impulse energy	<2048J
Work environment	temperature & humidity: 0-40ºC,  <75% RH
Power supply	AC 220V, 50Hz/60Hz
Total power	300kVA