What are the models of cable fault locators? Which manufacturer s is better? At what price?

Practice is the first criterion for testing truth! Several common fault types and complex fault types, test big competition! Don't be watery! As long as the facts!

Shaanxi Yilian Electronic Technology Co., Ltd. ****.

YDL-208 Secondary Pulse Cable Fault Tester.

First, using a cable fault tester ensures safe, fast, and accurate readings. In the past, when testing flashover or high barrier layers of power cables, it was often technically necessary to burn them out, but with a cable fault tester it is not necessary to burn out, and the fault is more accurately located.

Second, the cable fault tester itself has a complete data acquisition and storage system that ensures that the equipment is ready to test the location of the fault point. In addition, the data storage function not only serves the test, but also the parameter setting of the tester itself, which not only does not need to waste too much time on the parameter setting, but also ensures that no data is lost in this case and the abnormal shutdown is achieved.

Thirdly, compared with the traditional cable fault detection equipment, the current tester has a dual-track display function, a measurement cursor control function and a distance display function. The dual-track function allows test waveforms to be compared to better find the point of failure. The control and measurement cursor functions of the tester can search along the road and automatically stop at the fault point to determine the location of the fault point.

The distance display also helps to locate the point of failure.

Fourthly, in addition to the above-mentioned test functions, the current cable fault tester has many practical additional features, such as good compatibility with external computers and printers and its own data storage and printing capabilities.

Huatian Electric Power specializes in the production of power testing equipment, which is your trusted choice, and all power workers are welcome to consult.

How to choose the underground cable to judge the fault of the Zheng simple position instrument? What are the features? Personally, I think there are more models of cable fault locators like this, and many models of big brands are better.

The Portable Cable Fault Location System is a comprehensive set of cable fault detection instruments. It can test the high-resistance flashover fault, high-resistance grounding, short circuit, cable disconnection, poor contact and other faults of the cable.

Portable Cable Fault Location System System Features.

1. High degree of intelligence, the test results are automatically displayed on the large-screen LCD screen with the historical waveform and data, and the fault judgment is intuitive. And equipped with full Chinese menu display operation function, no need for special training for operators.

2. This cable fault detector has the function of waveform and parameter storage and recall, and adopts non-volatile devices, so the waveform and data are not easy to lose after shutdown.

3. It has the function of double trace display, which can compare the test waveform of the faulty cable with the normal waveform, which is conducive to further judgment of the fault.

4. It has the function of waveform expansion ratio, change the waveform ratio, and the waveform can be extended for accurate testing.

5. The position of the double cursor can be changed arbitrarily, and the direct distance or relative distance between the fault point and the test point can be directly displayed.

6. It has the function of modifying the propagation speed at any time according to different cables under test.

7 Small and portable form factor, powered by a rechargeable battery, easy to carry and use.

Technical indicators of portable shed type cable fault location system.

1 Maximum test distance: 32 km (up to 100 km on the open line).

2 Detection blind zone: 1m

3 Reading Resolution: 1m

4 Power consumption: 5VA

5 Conditions of use: ambient temperature 0 +40 (limit temperature 10 +50).

Relative humidity 40 (20, 90)%RH

Atmospheric pressure limb and song (86 106) kpa

6 Volume: 225 165 125mm38 Weight: 2kg

A cable fault locator (also known as a cable fault tester) is a portable test instrument that is easy to use, a single-phase unit that can pre-locate cable faults for short and open circuit faults by using the low voltage pulse method Time Domain Reflectometry (TDR) method.

The Pulsed Current Method (ICM) can be used to pre-locate low-insulation or intermittent type cable faults by coupling with a high-voltage surge tester in low-, medium-, and high-voltage cables.

The maximum measurement range for cable fault prelocation is 100 km in different selectable ranges.

With the help of power transmission, the distribution network company has a suitable cable fault tester, which can be used to pre-locate short circuits, open circuit fault distances (low voltage pulse method) and low insulation, high resistance flash faults (pulse current method (ICM)) and cable fault location.

Working Guidelines. Low Pressure Pulse Method Time Domain Reflectometer (TDR).

A narrow EMP of 5 ns with a fast rise time is sent on the cable, which is reflected back from the far end of the fault point where the impedance has changed. Depending on the cable size and dielectric material, the propagation velocity (VOP) of each cable is set, and then the distance to the fault is automatically calculated and displayed on the screen in meters.

Pulsed current method ICM

Surge testers apply DC high voltage and high energy surges to the entire fault on the cable under test, causing breakdown or flashover at the fault point of the cable and creating current transients at the fault point. Moving forward between the cable fault locator and the point of fault, the current transient is measured using a current transformer with a frequency response sufficient to address only the edge of the current transient, and then the distance to the fault is automatically calculated and displayed on the screen in meters.

Respondent: Huatian Power.

a.Low-voltage pulse method: It is suitable for accurate ranging of low resistance, short circuit, and broken line faults, and can also be used for the measurement of the full length of the cable and the intermediate joint, T-joint, and termination head, as well as the correction of wave speed.

b.Pulse current method: suitable for high-impedance, flashover fault ranging, using a current coupler to collect signals from the test ground, completely isolated from the high-voltage part, safe and reliable.

c.Multi-pulse method: The world's most advanced ranging method is an improvement of the two-pulse method. The waveform is clear and easy to identify, and the ranging accuracy is high.

GD-4133 power cable multi-pulse fault rangefinder is used for distance measurement of power cable fault points, which has the characteristics of easy identification of waveform, high resolution, friendly interface, support for touch buttons and mechanical buttons, and easy operation.

GD-4133 can be used independently in low-pressure pulse mode; It needs to be used with GD-2131L device in pulse current mode; In the multi-pulse mode, it must also cooperate with the GD-4133S cable test multi-pulse coupling device; After the ranging is completed, the GD-4132 digital multi-function cable fault pinpoint meter must be used for accurate fixing. Together, they form a high-performance cable fault finding system that offers a wide range of innovative features.

The cable fault tester is an instrument that controls the process of signal transmission, reception and digitization of signals with a microprocessor as the core.

The microprocessor of the cable fault tester completes the process tasks of converting the signal into a digital signal: the acquisition, storage, digital filtering, cursor movement, distance calculation, waveform comparison, expansion of the waveform ratio, until it is sent to the LCD display screen. There can also be communication port and PC communication for working feedback detection signal process results.