Cable Fault Location System
Darui Electric recommends for you
Pinpointing:
Test methods: 1. Electromagnetic direction method 2. Electromagnetic intensity method 3. Audio frequency method 4. Acoustic-magnetic synchronization method 5. Step voltage method.
Distance measurement: 00.0-25 milliseconds, 3 digits
Synchronous measurement: Magnetic field/Acoustic wave
Filters: (Four sections) 100Hz-1.5kHz (acoustic) 270Hz-1.5kHz (acoustic)
Sound/Magnetic field/Audio signal measurement: 1. Waveform 2. Amplitude bar 3. Digital display
Sound/Magnetic field/Audio signal adjustment: Keypad
Amplification range: Acoustic channel >95dB (with volume limit) Magnetic channel >80dB
Test accuracy: 0.1 meter
Display: 320×240 dot matrix high-resolution large-screen LCD, visible under strong sunlight during the day, with backlight at night.
Probe length: 480—800mm adjustable.
Step voltage method A-frame detects cable sheath faults up to 5MΩ.
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Path:
Simple and convenient operation, no professional training required
Output voltage peak up to 1000V (open circuit voltage)
Detection distance <20Km
Detection depth ≤ 3m
Route error <5cm
Induced fault point distance ≤ 30m
Distance Measurement:
Rugged integrated handcart structure with powerful impact energy.
Internally integrated DC high-voltage generator, high-voltage impulse capacitor, automatic ignition/discharge sphere gap unit, current coupling unit, centralized automatic control unit, easy-to-operate cable fault impulse generator.
Wide wheels (diameter 25CM), lightweight and compact design, ensuring smooth long-distance movement on various road conditions.
Quickly locate and pinpoint low-resistance, open-circuit, high-resistance leakage, and flashover faults of power cables of various voltage levels.
Built-in high-voltage output terminal, output is high-voltage silicone coaxial cable, simple wiring, safe and reliable.
Test modes: Arc reflection method / Multiple pulse method,
DC arc reflection method / DC multiple pulse method
Current sampling method (built-in)
DC current sampling method (built-in)
DC output (built-in)
Sampling signal types: Arc reflection / Multiple pulse, current sampling, low-voltage pulse.
Built-in DC high-voltage output: 0～32KV negative polarity Output current: 50mA
Built-in pulse impulse capacitor: 0～35KV 4μF Capacitor energy 2450J joules
Built-in sphere gap impulse discharge: Weak current controlled solenoid valve air gap, impulse discharge cycle 3—12 seconds adjustable, and specially designed silencing device to meet the requirement of silence for starting cable faults.
Sampling frequency: 30MHz, 60MHz, 120MHz, 200MHz multiple sampling frequencies, higher test accuracy.
Test distance: Up to 165Km.
Test pulse: 0.2～9.9μs, arbitrarily adjustable.
Pulse method error:
Rough measurement relative error: not greater than ±0.25%;
Rough measurement error: for cables less than 2 kilometers, not exceeding 1 meter;
for cables more than 5 kilometers, not exceeding 2 meters.
Protection:
Zero voltage position protection: prevents misoperation, ensures safety of personnel and tested equipment;
After pressing the "Disconnect" key, residual charge is quickly and automatically discharged through built-in safety devices to ensure safety.
Dimensions: 400*300*800mm
Weight: 40Kg
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
