I. Overview:
Cable fault locator also could be called as underground cable fault locator, cable fault distance locator, cable fault tester, some people even short it as TDR locator.
II. HM-A300 Cable Fault Distance Locator included four parts as below
1. HM-A300 Power cable fault pre-locator , used for main insulation fault pre-locating.
2. HM-C100 Multiple impulse generator ,used to offer the multi-impluse coupling signal for the cable fault location.(Optional)
3. HM-350 Cable fault locating HV signal generator, used for inject high voltage into the faulty cable.
4. HM-R10+C10A Cable Fault Pinpointer, used for main insulation path tracing and fault pinpointing.
1. HM-A300 Power cable fault pre-locator , used for main insulation fault pre-locating.
2. HM-R10+C10A Cable Fault Pinpointer, used for main insulation path tracing and fault pinpointing.
3. HM-350 Cable fault locating HV signal generator, used for inject high voltage into the faulty cable.
1. Integrated design, built-in capacitor, simple wiring.
2.Touch screen, simple setting and operation, intuitive and convenient display.
3. With voltage regulation, automatic voltage stabilization and automatic protection functions.
4. The output high voltage has the function of single pulse and continuous pulse.
5. The output high voltage has a DC output, which can work with an external ball gap, and has a variety of applications.
6. The software controls vacuum impulse ignition and discharge, self-adaptive discharge and pulse period.
7. With emergency stop button, automatic discharge function, safe and reliable.
8. The continuous working time is not less than 6 hours, meeting the longest working time of cable fault test.
9. Engineering chassis design, compact structure, small size, light weight, easy to carry by one person.
3.1 Technical parameters
This product is mainly used for impulse discharging when sample high-resistance fault waveforms of power cable of 35KV and below, and for impulsive discharge when precisely locate fault point. It can also be used for the burn-through of high-resistance faults of power cables and external sheath precisely locating for extra-high voltage cables above 110KV. It can burn through the breakdown point in a short time and reduce resistance in the breakdown point.
1. Output mode: pulse output, DC output
2. Output voltage: negative voltage, 0~-32kv continuously adjustable
3. Working current: ≤40mA
4. Working mode: single pulse, continuous pulse, DC output
5. Built-in capacitance: 2.8uF/32kv
6. Discharge energy: ≤1430J
7. Pulse period: 3s~8s adaptive
8. Automatic discharge: automatic discharge after shutdown
9. Working power supply: power frequency 220V±10%
10. Display screen: 800×480 resolution touch screen
11. Working temperature: -10ºC~40ºC
12. Working humidity: ≤80%
13. Altitude: ≤1000m
14. Dimensions: 478(L)*370(W)*448(H) mm
15. Weight: ≤28kg
III. Applications:
Cable Fault Distance Locator is widely used for the test of various types of power cable fault, cable path, cable buried depth, as well as railway, airport control signal and cable failure precision test.
The Cable Fault Distance Locator has three modes of operation as below:
Low voltage pulse:can be used to measure the distance of cable fault, low resistance and short circuits.
Pulse current : in combination with the high-voltage signal generator, can be used to measure the distance of the high resistance and the flashover fault. The
Multiple pulse:multi-pulse ranging method can be used to measure the distance of high-resistance and flashover faults of power cables under the cooperation of the high-voltage signal generator and the multi-pulse generator.
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