| Customization: | Available |
|---|---|
| After-sales Service: | Online |
| Warranty: | 1 Year |
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Geographic line leakage short-circuit breakpoint locator/Underground cable fault detector
This product is the opportunity of our company in the rapid progress of the power industry, according to the industry development and market demand, research and development and production of power cable fault test special system equipment. It is mainly used for power cable open circuit, short circuit, ground, low resistance, high resistance flashover and high resistance leakage fault test, as well as coaxial communication cable and local cable open circuit, short circuit fault test. It can also measure the speed of the wave, determine the length of the cable, etc., and can establish cable files for daily maintenance and management.
The product adopts time domain reflectometry (TDR) technology, the fault waveform automatic spacing, simple and clear, convenient and pleasant to use; The whole machine adopts industrial grade black safety protection box design, protection grade IP67, small and delicate, easy to carry; The human-machine interface is friendly, even if non-professional personnel operate, you can still quickly get familiar with and use, efficient and accurate to complete the cable fault test.
Functional characteristics
1. For 35kV and below different grades, different sections, different media and various materials of power cable faults, including: open circuit, short circuit, low resistance, high resistance leakage, high resistance flashover fault.
2. Can cooperate with high-voltage equipment to realize the traditional cable fault test of low-voltage pulse method, impact flashover method, three pulse method, multiple pulse method, speed measurement method.
3. Chinese operation software and user interface, sub-menu and text prompts to achieve human-machine interaction.
4. Industrial 10.4 inch color touch LCD display, Chinese operating software and user interface, sub-menu and text prompts to achieve human-computer interaction.
5. The global waveform and local waveform are displayed synchronously, which is convenient for overall analysis and detailed adjustment.
6. The high-resistance faults all show simple waveform characteristics similar to the low-voltage pulse short-circuit fault, which is easy to interpret.
7. When using multiple pulse method test, the interface collects 8 real waveforms at the same time, which is easier to interpret and reduce test errors, and improve test accuracy.
8. Built-in power supply, can be used for a long time in the environment without power supply.
9. Industrial grade black safety protection box design, protection grade IP67, small size, light weight, easy to use, detection failure rate and high test accuracy.
10. Stable performance, no crash, signal acquisition high voltage protection measures are safe.
11. Built-in storage/retrieval function, which can easily save or retrieve data and waveform for re-analysis.
12. The test signal provides a variety of pulse width, no test blind area.
Geographic line leakage short-circuit breakpoint locator/Underground cable fault detector
KD-216 cable path finder
intro
This product, together with the path detection receiver (i.e., the "acoustic magnetic digital display synchronous fixed point
instrument" detailed in the following section), can reliably detect the buried path and buried depth of various types of buried power cables and metal pipelines.
Functional characteristics
Because of the use of intermittent amplitude modulation 15kHz sinusoidal signal, the power frequency interference and the same frequency interference of TV line frequency can be effectively suppressed when detecting the path trend and buried depth of buried cable, and the field detection efficiency is improved.
Because of the amplitude modulation technology, the transmitter is not only suitable for the traditional beat receiver but also for the direct amplifier double voltage detection path receiver. The signal output power of the device is large, and the path distance of the detected path can reach more than 10km, which can meet the buried path search work of various kinds of super-length laying cables of most domestic enterprises.
Technical index
1, output power: when the load resistance is 10Ω, the output power is greater than 30W, and continuously adjustable.
2. Working frequency: 15kHz
3, working mode: intermittent (repeat period 1Hz/ s), constant amplitude, amplitude modulation (modulation frequency 400 ~ 1000Hz) constant amplitude output is suitable for beat receiver, AM output is suitable for direct amplifier voltage double detection receiver.
4, with automatic overheating, overload protection function, can work for more than 8 hours.
5, working power supply: AC 220V ±10%,50Hz
6, environmental conditions: temperature -20 ~ 50ºC, humidity is less than 95%
Geographic line leakage short-circuit breakpoint locator/Underground cable fault detector
KD-216 acoustic magnetic synchronous fixed point instrument
intro
This product is used for fast and accurate location of buried electrical insulation fault points and accurate detection of buried path and buried depth of cables.
Main feature
1, with a special structure of acoustic vibration sensor and low noise special devices for pre-amplification, greatly improve the sensitivity of the instrument fixed point and path detection. In the signal processing technology, the distance between the fault point and the sensor is displayed digitally, which eliminates the blindness of the fixed point.
2, as long as the sensor probe of the instrument contact the faulty cable or nearby cable, it can accurately display the fault distance and direction, and quickly determine the fault location without effort.
3, power frequency adaptive cancellation theory and high power frequency notch technology, greatly strengthen the suppression and anti-interference ability of 50Hz power frequency signal in a strong power frequency electric field environment, and narrow the fixed-point blind area. In the function of the instrument, using the technology of acoustic and electric synchronous receiving and display, the fixed-point difficulty caused by the noise interference of the fixed-point field is effectively overcome. In particular, the digital display of fault distance saves the operator from analyzing and judging the complex waveform, and replaces the coarse distance measurement function of the flash gauge to a considerable extent. For hundreds of meters of fault cables, the fixed point can be implemented generally without rough measurement, which truly realizes high efficiency, fast and accurate. 15kHz amplitude modulated electromagnetic wave and amplitude detection technology are used to detect the path and measure the buried depth of the cable, which avoids the interference of the TV line frequency to the fixed point instrument when the original 15kHz signal source is constant amplitude.
4, easy to operate, open the power switch can be, no need to shift and function selection. Compact structure, compact, modular, easy to carry maintenance, strong function.
Cable fault locator underground
Technical parameter
1, digital display distance: maximum 500 meters, minimum 0.1 meters.
2, rough measurement error is less than 10%, fixed-point error is zero.
3, electromagnetic channel gain ≥110dB.
4, electromagnetic channel receiver sensitivity ≤5μV.
5, sound channel audio amplifier gain ≤120dB.
6, power frequency suppression ability > 40dB.
7, acoustic and electric synchronous display monitoring: that is, when the site is fixed, the digital screen is repeatedly counted once under the impact electromagnetic wave formed by the impact high voltage, and displays the fault distance or full light (500.0 meters). At the same time, the high-resistance earphones monitor the seismic waves generated by the spark of the cable fault point when the impact discharge breakdown, in order to eliminate the interference of environmental clutter.
8. When the acoustic sensor probe is replaced with a 15kHz electromagnetic sensor probe, it can be used for accurate detection of the cable path and the buried depth of the cable.
9, working power supply: built-in rechargeable battery power supply, continuous working time > 12 hours.
10, power consumption: ≤0.7W
Cable fault locator underground
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Sampling method |
low voltage pulse method, impact flashover method, speed measurement method (extended with three pulse method, multiple pulse method) |
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Sampling rate |
200 MHz, 100 MHz, 80 MHz, 40 MHz, 20MHz, 10 MHz |
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Pulse width |
0.05μs, 0.1μs, 0.2μs, 0.5μs, 1μs, 2μs, 8μs |
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Wave speed setting |
ross-linked ethylene, polyvinyl chloride, oil-impregnated paper, non-dripping oil and unknown type self-setting |
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Impact high voltage |
40kV and below |
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Test distance |
< 60km |
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Resolution |
1m |
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Test accuracy |
1m |
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Display mode |
Industrial grade 10.4 inch color touch LCD screen |
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Operation mode |
touch screen operation, physical knob operation |
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Analysis Settings |
scroll, zoom, save, call out, wave shift and other functions |
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Working power supply |
built-in battery power supply, coupling unit passive work |
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Continuous operation |
> 4h (can also use external power supply) |
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Storage function |
With data storage function, can store a large number of field waveform and data, and real-time call out for use |
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Waveform analysis |
The high-resistance fault waveform is only the short-circuit fault waveform characteristic of the low-voltage pulse method, which is easy to analyze the card position |
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Waveform processing |
The measured fault point waveform and the full-length open-circuit waveform of the good phase can be displayed on the screen at the same time for comparison and superposition comparison, and the fault distance can be automatically judged |
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Packaging specifications |
Industrial grade black safety protection box, protection grade IP67 |
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Overall dimensions |
length 365mm× width 269mm× height 169mm |
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Weight |
3.8kg |
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