1. Product overview:

The cable fault tester caters to the industrial-level power industry solutions and the rapid development of the IT era. It systematizes the limitations of the original cable fault tester with industrial control embedded computer platform system, network service business, and USB communication technology, which greatly improves the instrument. The use function and utilization value and convenient on-site environment operation. Especially for the increasing number of buried cable faults, it provides a set of unique multi-scheme service methods and management learning software. The whole system complies with the general technical conditions of the electric power industry standard "DL/T849.1~DL/T849.3-2004" of the People's Republic of China for special testing instruments for electric power equipment. The equipment is a qualified supplier of State Grid and China Southern Power Grid. The system test consists of three parts: the system host, the fault locator and the cable routing instrument. And the test of railway airport signal control cable and street light cable fault.

Advantages and technical parameters of cable fault tester

2. Advantages

Domestic use of industrial control embedded computer platform system, full computer XP system operating platform, integrated software testing, and equipped with cable fault testing software.

Domestic use of 12.1in large screen, touch mouse operation, highlight screen display, suitable for outdoor use in sunlight, lithium battery power supply, convenient for on-site testing. Engineering aluminum alloy chassis, shock-proof and moisture-proof to achieve strong stability.

The adopted USB communication interface, the acquisition signal is stable, the host can automatically select five sampling frequencies as low as 6.25MHz and up to 100MHz, and the adaptive pulse width can meet the test requirements of cables of different lengths, reduce the rough measurement error, and improve the test accuracy.

The software software realizes that the waveform can be compressed and expanded arbitrarily. Two waveforms that are closer to the standard are randomly displayed on the same screen for you to compare and analyze accurately. The double cursor movement can reach 0.15 meters, which improves the test accuracy and reduces errors.

The host supports the host's own WIFI receiving function. The dedicated 3G software can realize the expert remote on-site real-time testing technical service at any time. The expert can remotely control the user host. And exchange guidance, make you worry-free work (optional).

Built-in on-site waveforms and on-site physical wiring diagrams are conducive to on-site test comparison and daily learning, and can automatically generate and print test reports.

The key point-pointing instrument can directly digitally display the distance between the tester and the fault point. The use of noise suppression technology is another innovation of the same kind of fixed-point technology in China, which provides a strong guarantee for quickly and accurately finding cable faults and reducing power outage losses.

Four types of high-voltage discharge parts are available for users to choose from. The domestic brand-new 8.4kg YH-350 high-frequency high-voltage power supply replaces the 65kg test transformer and operation box. Really comprehensive and lightweight, domestic.

3. Technical parameters:

DLY-2000 cable fault tester can test various faults of power cables with different voltage levels, different cross-sections, different media and various materials below 35KV, including: open circuit, short circuit, low resistance, high resistance leakage, high resistance flashing network failure.

It can test various faults of railway communication control cables, street light cables and airport signal cables.

Measures the speed of wave propagation in any cable of known length.

Can test power cable burial path and burial depth

Display mode: 12.1-inch industrial-grade LCD screen (XP operating platform)

Test distance: not less than 60km Storage space: fixed 8G

Test method: low voltage pulse method, flash current method, direct flash current method Operation method: touch mouse operation

Short test distance (blind zone): 0-5 meters or no blind zone

Resolution: V/fm; V is the wave transmission speed m/μs; software cursor 0.10m Fixed point error: ±0.2m Test error: system error less than ±1%

Instrument sampling frequency: 6.25MHz, 12.5MHz, 25MHz, 50MHz, 100MHz

Pulse width: 80 ns, 100 ns, 200 ns, 1 μs, 2 μs (automatic matching by software)

Standby time: about 6 hours of continuous use

Host weight: 7kg Dimensions: 180mm×300mm×400mm

Ambient temperature: -25℃～﹢40℃, relative humidity: 80%

Power and power consumption: AC 220V±10% not more than 15W DC 12V (7AH) not more than 20W

Path meter technical indicators:

Signal frequency: 15KHz sine wave Output power: Pomax≥100W Output impedance: Zo=Zc (cable characteristic resistivity)

Oscillation mode: intermittent Ambient temperature: -10℃～+40℃ Relative humidity: RH≤85% (25℃)

Host weight: 9.8kg Dimensions: 180mm×300mm×400mm

Acoustic-magnetic digital display synchronous fixed-point instrument technical indicators:

Digital display distance: large 500 meters, small 0.1 meters Coarse measurement error: less than 10%, fixed point error is zero

Electromagnetic channel gain: "110dB (300,000 times) Sound channel audio amplifier gain: "120dB (1 million times when the signal-to-noise ratio is 4:1) 50Hz Power frequency suppression: "40dB (100 times)

YH-350 integrated high frequency high voltage power supply technical indicators:

Working voltage: ≤25kV Large working current: ≤30mA Display voltage value error: <±2% Small discharge cycle: 3 seconds

Impact energy: ≤1250J Built-in capacitor: 4μF/25KV Power consumption: <2.5KVA Weight: 11KG

Working environment: Input current: 220V±10% 50Hz±2Hz Working humidity (relative): ≤80%

Working temperature: -10℃－50℃ Altitude: below 1000 meters

Service methods and technologies: a. 3G wireless remote synchronous measurement and control service (optional); b. Mobile Android version test software service (optional); c. Real-time analysis service of wave mail transmission