ZWT201 Underground Electric Cable Fault Detector Locator Cable Fault Location
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- Supplier: Baoding Zhiwei Electric Power Technology Co. Limited
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Product Overview
Description
ZWT201 Cable Fault Testing System
Functional Characteristics
The system mainly includes four parts: cable fault tester, cable path detector, acoustic magnetic synchronous fixed-point instrument, and integrated high-voltage signal generator.
Part 1 .Cable Fault Tester
Functional Characteristics
1. Used for various faults of power cables of different levels, cross sections, media, and materials of 35kV and below, including open circuit, short circuit, low resistance, high resistance leakage, and high resistance flash-over faults.
2. The low-voltage pulse method, impact flash-over method, triple pulse method, multiple pulse method, and velocity measurement method can be used in conjunction with high-voltage equipment to achieve traditional cable fault testing.
3. Industrial grade 10.4-inch color touch LCD screen display, all Chinese operating software and user interface, sub menu mode and text prompts to achieve human-machine interaction.
4. The global waveform and local waveform are displayed synchronously, facilitating overall analysis and detailed adjustment.
5. Any high resistance fault presents the simplest waveform characteristics similar to low-voltage pulse short circuit fault,which is easy to interpret.
6.When using the multiple pulse method for testing, the interface simultaneously collects 8 true wave-forms, which is more convenient for interpretation and reduces testing errors, improving testing accuracy.
7. Equipped with a built-in power supply, it can be used for a long time in power free environments.
8. Small size, light weight, easy to use, high success rate and testing accuracy in detecting faults.
9. Stable performance in any environment, no crash, and safe signal acquisition high-voltage protection measures.
10. With built-in storage/retrieval function, it is convenient to save or retrieve data and wave-forms for reanalysis.
11. The test signal provides multiple pulse widths without blind spots.
Technical Parameter
Multiple pulse cable fault tester
1. Sampling method: Low voltage pulse method, impact flashover method, velocity measurement method (extended to three pulse method, eight pulse method).
2. Sampling rate: 200 MHz, 100 MHz, 80 MHz, 40 MHz, 20 MHz, 10 MHz
3. Pulse width: 0.05 μ s. 0.1 μ s. 0.2 μ s. 0.5 μ s. 1 μ s. 2 μ s. 8 μ S
4. Wave speed setting: cross-linked ethylene, polyvinyl chloride, oil-immersed paper, non dripping oil, and unknown type self setting.
5. Impulse high voltage: 40kV and below
6. Test distance: ＜ 60km
7. Resolution: 1m
8. Test accuracy: 1m
9. Display method: Industrial grade 10.4-inch color touch LCD screen.
10. Operation mode: touch screen operation, physical knob operation.
11. Analysis settings: functions such as scrolling, zooming, saving, calling out, wave shifting, etc.
12. Working power supply: Built in battery power supply, passive operation of coupling unit.
13. Continuous operation: ＞ 4h (external power supply can also be used).
14. Storage function: With data storage function, it can store a large number of on-site wave-formsand data, and can be called up and used at any time.
15. Waveform analysis: All high resistance fault wave-formsare only characterized by short circuit fault wave-formsusing the low voltage pulse method, which is convenient for analyzing stuck points.
16. Waveform processing: It can display the measured waveform of the fault point and the full-length open circuit waveform of the good phase simultaneously on the screen for comparison and superposition, and can automatically determine the fault distance.
17. Packaging specification: Adopting industrial grade black safety protection box, with protection level of IP67.
18. Overall dimensions: L365mm × W269mm × H 169mm
19. Weight: 3.8kg
Part 2 .Cable Path Tester
Functional Characteristics
1. Digital narrowband filtering technology has the strongest anti-interference ability.
2. Continuous automatic impedance matching without manual intervention.
3. Multiple antennas, multiple channels, and direct display of cable burial depth.
4. Current measurement is the most effective method for identifying target pipelines in densely populated areas.
5. The large capacity lithium battery charging pack ensures longer working hours and is convenient for outdoor use.
6. It can search for 50Hz running cable paths.
7. The built-in ohmmeter can measure the loop resistance.
Technical Parameter
Transmitter
* Output frequency: low frequency, intermediate frequency, high frequency, radio frequency [815 Hz, 8.2 kHz, 32 kHz, 82 kHz];
Identify composite frequencies 2-4kHz
* Output mode: direct connection, induction, coupling
* Clock accuracy: ≤ 50ns
* Output power: Automatically adjustable with matching load of 1-10 W, with a resistance of 5-25000 Ω
* LCD display: automatic backlight lighting, graphical display of output energy, digital display of output power/current/voltage and loop resistance, operation mode, self check status, load resistance, voltage, SS intelligent identification signal,four-way navigation key, menu selection, voltage alarm, SS intelligent identification signal, volume, external power/charging status, etc
* Operation mode: soft buttons
* Output power: ≥ 10W
* Battery model and lifespan: 18650 lithium battery charging set, maximum power continuous output time>8h
* Overheating and overcurrent: automatic protection
* Battery status: graphical display
* Caliper diameter: 135mm; Opening 145mm
* Charger: AC 100-240 V, 50-60Hz
* Volume: 277 mm × 227 mm × 153 mm
* Weight: 2.8 kg
Receiver
* Active frequency: low-frequency, intermediate frequency, high-frequency, RF, power frequency 50Hz [815 Hz, 8.2 kHz, 32 kHz, 82kHz]; Depth with left/right direction indication
* Passive frequency: 50/60Hz, 100Hz, 120Hz, RF14-21kHz; Without depth and left/right direction display
* Clock accuracy: ≤ 50ns
* Depth range: 0-10m, 45 degree depth measurement, 80% depth measurement
* Depth measurement accuracy: ± 2.5%+5 centimeters (0-2m) (related to on-site environment, shape of non concentric lines,distribution of adjacent pipelines, etc.)
* Sound indication: FM tone that varies with signal strength, divided into four levels of size
* Signal strength indication: LCD display, sound prompt
* Signal strength representation: bar chart, digital range 0-999
* Gain dynamic range: 100 dB, automatic and manual adjustment
* Compass direction indication: left and right automatic indication of target pipeline position
* LCD display: VGA high brightness LED, supporting operation in strong sunlight, backlighting, ensuring normal operation at night
* Operation mode: soft buttons
* Display content: signal strength, depth, current, frequency, battery status, SS intelligent signal recognition indication, GC compass guidance indication, DA signal distortion warning, left/right positioning guidance arrow, signal gain, volume
* Live identification: SS intelligent signal recognition indication, GC compass guidance indication, DA signal distortion warning
* Battery model and working time: 18650 lithium battery charging set, continuous operation>12h
* Battery status: continuous battery level graphic display
* Volume: 650mm × 32mm × 110 mm
* Weight: 1.6 kg
Part 3 .Acoustic Magnetic Synchronous Fault Locator
Main Features
1. The use of special structured acoustic vibration sensors and low noise specialized devices as preamplifiers greatly improves the sensitivity of the instrument for fixed point and path detection. In signal processing technology, the use of digital display of the distance between the fault point and the sensing probe greatly eliminates blindness during fixed point operation.
2. When a faulty cable is overhead in a cable trench, the vibration sound of the entire cable makes any locator helpless and unable to determine the specific location of a closed fault. Nowadays, as long as the sensor probe of this instrument contacts the faulty cable or nearby cable, the fault distance and direction can be accurately displayed, and the fault location can be quickly determined effortlessly.
3. The power frequency adaptive cancellation theory and high power frequency notch technology greatly enhance the suppression and anti-interference ability of 50Hz power frequency signals in strong power frequency electric field environments, reducing the fixed blind spot. In terms of instrument function, the use of acoustic and electrical synchronous reception display technology effectively overcomes the difficulty of fixed point caused by environmental noise interference in the fixed site.Especially the digital display of fault distance eliminates the need for operators to analyze and judge complex waveforms. which to a considerable extent replaces the coarse distance measurement function of the flash tester. For faulty cables hundreds of meters long, fixed points can generally be implemented without rough testing, truly achieving efficiency, speed,and accuracy. The use of 15kHz amplitude modulated electromagnetic wave and amplitude detection technology for path detection and cable burial depth measurement avoids the interference of television line frequency on the fixed-point instrument when the original constant amplitude 15kHz signal source is used.
4. The operation is extremely simple, just turn on the power switch, and there is no need to shift gears or select functions.Compact, compact, modular, easy to carry and maintain, with powerful functions.
Technical Parameter
1. Digital display distance: maximum 500 meters, minimum 0.1 meters.
2. The rough measurement error is less than 10%, and the fixed point error is zero.
3. Electromagnetic channel gain ≥ 110dB.
4. Sensitivity of electromagnetic channel receiver ≤ 5 μ V.
5. Sound channel audio amplifier gain ≤ 120dB.
6. Power frequency suppression capability>40dB.
7. Acoustic and magnetic synchronous display monitoring: that is, at a fixed point on site, the digital screen is repeatedly counted once under the action of the shock electromagnetic wave formed by the impact high voltage, and displays the fault distance or full brightness (500.0 meters). At the same time, the seismic waves generated by sparks during shock discharge breakdown at the cable fault point are monitored by high impedance headphones to eliminate environmental clutter interference.
8. When using a path antenna as a sensor, directly plug and unplug the black probe antenna, and use the trough method to accurately detect the cable path.
9. Working power supply: Equipped with a built-in rechargeable battery for power supply, with a continuous working time of more than 12 hours.
10. Overall dimension: 415mm long × Width 319mm × Height 168mm
11. Weight: fixer 1.2kg; Bottom probe sensor 1.0kg; The entire machine (including the box) weighs 6.5kg
Part 4 .Surge Voltage Generator
Functional Characteristics
1. Integrated design with built-in capacitors, compact structure, no high-voltage exposure, safe and reliable;
2. Industrial grade 4.3 inch color LCD display, user-friendly human-machine interface, dynamic display of real-time high-voltage value, working current, and fault point discharge indication, comprehensive and intuitive data display;
3. Intelligent design control, low voltage operation of the main control system, can preset voltage values, software
automatically boosts and stabilizes voltage, without the need for manual voltage regulation;
4. Adopting the latest patented high-voltage impact control technology, the pulse output cycle is controllable and adjustable,the system software automatically judges, and has an over-currentautomatic protection function;
5. It has an automatic discharge function, which automatically discharges the residual voltage of the built-in capacitor when it stops working, and simultaneously discharges the residual voltage of the external test cable;
6. It has a one button emergency stop function, which can cut off the high voltage and achieve automatic discharge with one button at any time, without the need for manual discharge with a discharge rod, ensuring safety and stability;
7. Simple wiring, dedicated high-voltage output line connected to faulty cables, using a dedicated combination grounding wire design to avoid abnormal operation caused by human wiring, and stable performance;
8. The structure and function are complete and reliable. The box is made of industrial grade black safety protection box, non aluminum alloy box, high-end and beautiful, easy to carry, safe to operate, and can work continuously for more than 8 hours.
Functional Characteristics
1. Used for various faults of power cables of different levels, cross sections, media, and materials of 35kV and below, including open circuit, short circuit, low resistance, high resistance leakage, and high resistance flash-over faults.
2. The low-voltage pulse method, impact flash-over method, triple pulse method, multiple pulse method, and velocity measurement method can be used in conjunction with high-voltage equipment to achieve traditional cable fault testing.
3. Industrial grade 10.4-inch color touch LCD screen display, all Chinese operating software and user interface, sub menu mode and text prompts to achieve human-machine interaction.
4. The global waveform and local waveform are displayed synchronously, facilitating overall analysis and detailed adjustment.
5. Any high resistance fault presents the simplest waveform characteristics similar to low-voltage pulse short circuit fault,which is easy to interpret.
6.When using the multiple pulse method for testing, the interface simultaneously collects 8 true wave-forms, which is more convenient for interpretation and reduces testing errors, improving testing accuracy.
7. Equipped with a built-in power supply, it can be used for a long time in power free environments.
8. Small size, light weight, easy to use, high success rate and testing accuracy in detecting faults.
9. Stable performance in any environment, no crash, and safe signal acquisition high-voltage protection measures.
10. With built-in storage/retrieval function, it is convenient to save or retrieve data and wave-forms for reanalysis.
11. The test signal provides multiple pulse widths without blind spots.
Technical Parameter
Multiple pulse cable fault tester
1. Sampling method: Low voltage pulse method, impact flashover method, velocity measurement method (extended to three pulse method, eight pulse method).
2. Sampling rate: 200 MHz, 100 MHz, 80 MHz, 40 MHz, 20 MHz, 10 MHz
3. Pulse width: 0.05 μ s. 0.1 μ s. 0.2 μ s. 0.5 μ s. 1 μ s. 2 μ s. 8 μ S
4. Wave speed setting: cross-linked ethylene, polyvinyl chloride, oil-immersed paper, non dripping oil, and unknown type self setting.
5. Impulse high voltage: 40kV and below
6. Test distance: ＜ 60km
7. Resolution: 1m
8. Test accuracy: 1m
9. Display method: Industrial grade 10.4-inch color touch LCD screen.
10. Operation mode: touch screen operation, physical knob operation.
11. Analysis settings: functions such as scrolling, zooming, saving, calling out, wave shifting, etc.
12. Working power supply: Built in battery power supply, passive operation of coupling unit.
13. Continuous operation: ＞ 4h (external power supply can also be used).
14. Storage function: With data storage function, it can store a large number of on-site wave-formsand data, and can be called up and used at any time.
15. Waveform analysis: All high resistance fault wave-formsare only characterized by short circuit fault wave-formsusing the low voltage pulse method, which is convenient for analyzing stuck points.
16. Waveform processing: It can display the measured waveform of the fault point and the full-length open circuit waveform of the good phase simultaneously on the screen for comparison and superposition, and can automatically determine the fault distance.
17. Packaging specification: Adopting industrial grade black safety protection box, with protection level of IP67.
18. Overall dimensions: L365mm × W269mm × H 169mm
19. Weight: 3.8kg
Part 2 .Cable Path Tester
Functional Characteristics
1. Digital narrowband filtering technology has the strongest anti-interference ability.
2. Continuous automatic impedance matching without manual intervention.
3. Multiple antennas, multiple channels, and direct display of cable burial depth.
4. Current measurement is the most effective method for identifying target pipelines in densely populated areas.
5. The large capacity lithium battery charging pack ensures longer working hours and is convenient for outdoor use.
6. It can search for 50Hz running cable paths.
7. The built-in ohmmeter can measure the loop resistance.
Technical Parameter
Transmitter
* Output frequency: low frequency, intermediate frequency, high frequency, radio frequency [815 Hz, 8.2 kHz, 32 kHz, 82 kHz];
Identify composite frequencies 2-4kHz
* Output mode: direct connection, induction, coupling
* Clock accuracy: ≤ 50ns
* Output power: Automatically adjustable with matching load of 1-10 W, with a resistance of 5-25000 Ω
* LCD display: automatic backlight lighting, graphical display of output energy, digital display of output power/current/voltage and loop resistance, operation mode, self check status, load resistance, voltage, SS intelligent identification signal,four-way navigation key, menu selection, voltage alarm, SS intelligent identification signal, volume, external power/charging status, etc
* Operation mode: soft buttons
* Output power: ≥ 10W
* Battery model and lifespan: 18650 lithium battery charging set, maximum power continuous output time>8h
* Overheating and overcurrent: automatic protection
* Battery status: graphical display
* Caliper diameter: 135mm; Opening 145mm
* Charger: AC 100-240 V, 50-60Hz
* Volume: 277 mm × 227 mm × 153 mm
* Weight: 2.8 kg
Receiver
* Active frequency: low-frequency, intermediate frequency, high-frequency, RF, power frequency 50Hz [815 Hz, 8.2 kHz, 32 kHz, 82kHz]; Depth with left/right direction indication
* Passive frequency: 50/60Hz, 100Hz, 120Hz, RF14-21kHz; Without depth and left/right direction display
* Clock accuracy: ≤ 50ns
* Depth range: 0-10m, 45 degree depth measurement, 80% depth measurement
* Depth measurement accuracy: ± 2.5%+5 centimeters (0-2m) (related to on-site environment, shape of non concentric lines,distribution of adjacent pipelines, etc.)
* Sound indication: FM tone that varies with signal strength, divided into four levels of size
* Signal strength indication: LCD display, sound prompt
* Signal strength representation: bar chart, digital range 0-999
* Gain dynamic range: 100 dB, automatic and manual adjustment
* Compass direction indication: left and right automatic indication of target pipeline position
* LCD display: VGA high brightness LED, supporting operation in strong sunlight, backlighting, ensuring normal operation at night
* Operation mode: soft buttons
* Display content: signal strength, depth, current, frequency, battery status, SS intelligent signal recognition indication, GC compass guidance indication, DA signal distortion warning, left/right positioning guidance arrow, signal gain, volume
* Live identification: SS intelligent signal recognition indication, GC compass guidance indication, DA signal distortion warning
* Battery model and working time: 18650 lithium battery charging set, continuous operation>12h
* Battery status: continuous battery level graphic display
* Volume: 650mm × 32mm × 110 mm
* Weight: 1.6 kg
Part 3 .Acoustic Magnetic Synchronous Fault Locator
Main Features
1. The use of special structured acoustic vibration sensors and low noise specialized devices as preamplifiers greatly improves the sensitivity of the instrument for fixed point and path detection. In signal processing technology, the use of digital display of the distance between the fault point and the sensing probe greatly eliminates blindness during fixed point operation.
2. When a faulty cable is overhead in a cable trench, the vibration sound of the entire cable makes any locator helpless and unable to determine the specific location of a closed fault. Nowadays, as long as the sensor probe of this instrument contacts the faulty cable or nearby cable, the fault distance and direction can be accurately displayed, and the fault location can be quickly determined effortlessly.
3. The power frequency adaptive cancellation theory and high power frequency notch technology greatly enhance the suppression and anti-interference ability of 50Hz power frequency signals in strong power frequency electric field environments, reducing the fixed blind spot. In terms of instrument function, the use of acoustic and electrical synchronous reception display technology effectively overcomes the difficulty of fixed point caused by environmental noise interference in the fixed site.Especially the digital display of fault distance eliminates the need for operators to analyze and judge complex waveforms. which to a considerable extent replaces the coarse distance measurement function of the flash tester. For faulty cables hundreds of meters long, fixed points can generally be implemented without rough testing, truly achieving efficiency, speed,and accuracy. The use of 15kHz amplitude modulated electromagnetic wave and amplitude detection technology for path detection and cable burial depth measurement avoids the interference of television line frequency on the fixed-point instrument when the original constant amplitude 15kHz signal source is used.
4. The operation is extremely simple, just turn on the power switch, and there is no need to shift gears or select functions.Compact, compact, modular, easy to carry and maintain, with powerful functions.
Technical Parameter
1. Digital display distance: maximum 500 meters, minimum 0.1 meters.
2. The rough measurement error is less than 10%, and the fixed point error is zero.
3. Electromagnetic channel gain ≥ 110dB.
4. Sensitivity of electromagnetic channel receiver ≤ 5 μ V.
5. Sound channel audio amplifier gain ≤ 120dB.
6. Power frequency suppression capability>40dB.
7. Acoustic and magnetic synchronous display monitoring: that is, at a fixed point on site, the digital screen is repeatedly counted once under the action of the shock electromagnetic wave formed by the impact high voltage, and displays the fault distance or full brightness (500.0 meters). At the same time, the seismic waves generated by sparks during shock discharge breakdown at the cable fault point are monitored by high impedance headphones to eliminate environmental clutter interference.
8. When using a path antenna as a sensor, directly plug and unplug the black probe antenna, and use the trough method to accurately detect the cable path.
9. Working power supply: Equipped with a built-in rechargeable battery for power supply, with a continuous working time of more than 12 hours.
10. Overall dimension: 415mm long × Width 319mm × Height 168mm
11. Weight: fixer 1.2kg; Bottom probe sensor 1.0kg; The entire machine (including the box) weighs 6.5kg
Part 4 .Surge Voltage Generator
Functional Characteristics
1. Integrated design with built-in capacitors, compact structure, no high-voltage exposure, safe and reliable;
2. Industrial grade 4.3 inch color LCD display, user-friendly human-machine interface, dynamic display of real-time high-voltage value, working current, and fault point discharge indication, comprehensive and intuitive data display;
3. Intelligent design control, low voltage operation of the main control system, can preset voltage values, software
automatically boosts and stabilizes voltage, without the need for manual voltage regulation;
4. Adopting the latest patented high-voltage impact control technology, the pulse output cycle is controllable and adjustable,the system software automatically judges, and has an over-currentautomatic protection function;
5. It has an automatic discharge function, which automatically discharges the residual voltage of the built-in capacitor when it stops working, and simultaneously discharges the residual voltage of the external test cable;
6. It has a one button emergency stop function, which can cut off the high voltage and achieve automatic discharge with one button at any time, without the need for manual discharge with a discharge rod, ensuring safety and stability;
7. Simple wiring, dedicated high-voltage output line connected to faulty cables, using a dedicated combination grounding wire design to avoid abnormal operation caused by human wiring, and stable performance;
8. The structure and function are complete and reliable. The box is made of industrial grade black safety protection box, non aluminum alloy box, high-end and beautiful, easy to carry, safe to operate, and can work continuously for more than 8 hours.
Baoding Zhiwei Electric Power Technology Co., Ltd. is a high-tech enterprise located in the National High-tech Industrial Development Zone of Baoding, China. The company specializes in the research and development, production, sales, and service of electric power system automation testing equipment, providing customers with one-stop services.
The company mainly produces and sells various types of testing equipment and instruments, such as oil-immersed, high-voltage, SF6 gas, and cable testing equipment, and has been deeply involved in the power industry for more than 20 years.
The company mainly produces and sells various types of testing equipment and instruments, such as oil-immersed, high-voltage, SF6 gas, and cable testing equipment, and has been deeply involved in the power industry for more than 20 years.
The company's main customer base includes national power grids, railways, power research institutes, water conservancy, chemical industry, power plants, power installation companies, transformer factories, electrical companies, training schools, and others worldwide.
The company adheres to the principle of "Wisdom Wins Innovation, Micro-Improvements See Quality," and strives to achieve the ultimate customer satisfaction.
The company adheres to the principle of "Wisdom Wins Innovation, Micro-Improvements See Quality," and strives to achieve the ultimate customer satisfaction.
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