HVHIPOT GD-4138 Series Mobile Cable Fault Locating System

• Customization: Available
• Output type: DC withstand, single discharge, periodic discharge
• DC HV output: 0-16kV
• Model NO.: GD-4138
• Maximum output current: 304mA, 152mA, 76mA
• Maximum output energy: 8UF, 1024J; 4UF, 2048J
• Power: 3kVA
• Transport Package: Standard Export Plywood Case
• Specification: ISO
• Trademark: HV Hipot
• Origin: Wuhan, China

Product Description

GD-4138 Series Cable Fault Locating System

General Information:

GD-4138L Mobile Cable Fault Locating System is important tool to maintain all kinds of cables. It is compatible equipment that can trace, locate the underground cables, with fault distance measurement and HV generation. As it is movable device, it is convenient to carry on-site. If acoustic locator is used together, it can locate accurate position of cable fault point.
Application is underground cable, aerial cable, power cable, local cable, communication cable and fiber cable.


Typical fault to be detected includes

1. High impedance flash-over fault
2. High impedance leak
3. High/low resistive grounding
4. Short-circuit fault
5. Open-circuit fault
6. Poor connection/Disconnection

GD-4138 system includes:

1. GD-4138 main frame (Coupling device, Sphere gap, HV generator are inside)
2. GD-4133 Multiple pulse cable fault tester
3. GD-4132 Cable Fault Locator

Features:

1. Multiple ranging methods: low-voltage pulse method, pulse current method, multiple pulse method: current sampling, DC output.
2. Sampling signal types: DC arc reflection method, current sampling, voltage sampling, low voltage pulse.
3. Quickly locate and point the low-resistance, high-resistance leakage faults and flashover faults of various 220V~220KV voltage grade power cables.
4. There is no need to carry out complex wiring for on-site testing. All test modes are switched automatically through the internal high voltage switch controlled by the weak current.
5. Integrated multi-speed DC high-voltage generator, multi-speed high-voltage capacitor, arc stabilizing unit and various signal acquisition in one, easy to operate fault location system.
6. Multi-level output high voltage switching, all controlled by internal low voltage weak current, safe and reliable.
7. The structure of the equipment adopts a high-strength plastic case. The case is the outer box of the equipment and the transfer box for the equipment delivery package. It is convenient to transfer, and it can be loaded and transferred directly when the cover is closed.
8. Sphere gap impulse discharge: Weak current control solenoid valve air gap, the discharge period is adjustable from 3 to 12 seconds, and the muffler is specially designed to meet the requirements of mute for cable failure at the beginning.
9. The equipment has a built-in discharge circuit. After the fault test is completed, the high voltage can be turned off just press the button at the discharge position to discharge automatically.
10. The distance measuring host can provide a distance measuring resolution up to 0.4m, and the measurement blind area is small, which is particularly effective for near-end faults and short cables.
11. All output terminals of the equipment are arranged on a rear panel for easy wiring, and wiring diagrams of various wiring methods are drawn on the operation panel, which can be easily used by people without experience.
12. The bottom of the equipment is equipped with 4 high-strength sliding wheels, which can be pushed and stacked for storage.
13. The ranging host uses a 7-inch large-screen LCD with a 160° viewing angle, and the display content is rich and intuitive.
14. A large number of waveforms can be stored in the host, and the waveform data can be imported and exported using U disk.
15. The host can be connected to a computer (desktop or notebook) for online communication.
16. When the host has no operation within 2 minutes, the backlight will be weakened; if there is no operation for 10 minutes, it will automatically shut down to reduce power consumption; when the battery is undervoltage, the instrument will also automatically shut down to protect the battery.
17. The host has a built-in polymer lithium-ion battery and is equipped with a dedicated lithium battery charger to provide a reliable charging method.
18. The whole machine adopts an integral transfer box structure design, which is compact and firm, especially suitable for construction site use.

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