1, test distance: single-ended 40km
The shortest test distance (blind area): no more than 10m2, fine fixed point error: ±0.2m
Test error: System error is less than ±2%
3, storage: mobile / fixed size: 60G/1G
4, operation mode: touch screen (with pen)
5, resolution: V/50m; V is the transmission wave speed m/μs; software cursor 0.18 meters.
6, sampling frequency: 6.25MHz, 12.5MHz, 25MHz, 50MHz, 100MHz
7, power and power consumption: AC220V ± 10% not more than 10W
DC12V (7AH) is not more than 20W
8, the signal frequency: 15KHz sine wave output power: Pomax ≥ 100W
9, the output impedance: Zo = Zc (cable characteristic resistance rate) Oscillation mode: intermittent 10, ambient temperature: -10 °C ~ +40 °C
Relative humidity: RH≤85%(25°C)
11. Overall dimensions: 180mm×300mm×400mm
12, host weight: 6.8kg
As we all know, when the fault is precisely determined, it is necessary to impact the cable with high voltage. In order to store energy to make the fault click through and discharge, a pulse capacitor is also required. Generally, a high voltage signal source of 35KV is used for the high voltage of the cable impulse and 2 microfarads are used for the pulse capacitor.
Due to the inconvenient use of the past 5,60 kg of test change, the latest cable fault tester generally adopts the newly developed T-A35 cable fault integrated high voltage generator newly developed by Xi'an Donghui Electric Co., Ltd., which weighs about 7KG and is light and flexible. Being loved by on-site cable repair personnel, the following is a picture of this cable fault high-voltage complete equipment.
Second, the product features:
â—† The whole set of equipment will be fault test and path detection part two and one, lithium power supply, the host lightweight, easy to carry, easy to test â—† comes with the latest USB communication interface, acquisition signal stability, with a laptop computer can achieve dual control dual display , truly compatible with the host computer and equipped with cable fault testing software and cable data management software.
â—†New large-screen liquid crystal display, high brightness, strong anti-interference.
â—† With its own micro-printer, it can print fax waveforms, provide accurate technical analysis and guide waveforms for users, and provide convenient technical services.
â—† The tested waveform can be arbitrarily compressed, expanded, and compared with the screen. Can make you analyze accurately and reduce errors.
â—† The key precision determination instrument part, imitating German technology, direct digital display testers distance from the fault point, is another innovation of the domestic fixed point technology of the same type, providing a powerful guarantee for quickly and accurately find cable faults and reduce the loss of power outages.
â—† With any laptop computer, online technical services can be realized, office testing is correct, and the contradiction of idle equipment can be resolved.
â—† Distribution cable data management software can do a complete cable file management, providing reference and assistance for cable maintenance work and precise positioning.
â—† The newly developed intelligent combined sampler replaces the cumbersome field wiring, has the advantages of easy waveform analysis, high voltage isolation, and absolute safety for the host and operator.
Third, the technical parameters:
1. Application range: Suitable for measuring the low resistance of power cables, high-frequency coaxial cables, local telephone cables and buried cables of more than two evenly laid buried cables with different voltage levels, different cross-sections, different media and various materials. Short-circuit, open-circuit breakage faults and high-impedance leakage and high-impedance flashover faults.
2, the test distance: not less than 30Km
3, the shortest test distance (blind): 10-15m pulse width: 0.2μs, 2μs
4. Measurement error: coarse measurement system error is less than ±1 precision point error ±0.2m
5, the instrument sampling rate: 25MHz
6. Display mode: 320×240 LCD with backlight display.
7, storage capacity: 8Kbyte and can be divided into two storage areas, store and display two sampling waveforms for comparison measurement.
8, display resolution: V / f meters, V is the propagation speed m / μS.
9. Printing method: Micro-printer is equipped with recording test date and test waveform data.
10ã€Power supply: ∽220V±10 or DC power supply inside the machine, power consumption is less than 10WDC6V(7AH) is not more than 6W
11. Dimensions: (length × width × height) 300 × 400 × 170mm
12, trace: signal frequency 15KHz sine wave, output power P0max ≥ 100W
Keywords: cable fault detector, cable fault detector, cable fault detector
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