Product Description

The EDHZC-4B Mobile Cable Fault Testing System integrates distance measurement, tracing, positioning, and impulse high-voltage generator into one, providing a comprehensive cable fault location device that is easy to move, transport, and perform on-site testing. It can test high-resistance flashover faults in cables, grounding with varying resistances, short circuits, cable breaks, and poor contacts. With the addition of an acoustic location instrument, it can accurately determine the fault location. It is used for distance measurement, tracing, burial depth detection, and fault location of various buried cables, overhead cables, power cables, local telephone cables, communication cables, and optical fibers.

Product Features

Feature

Low-pressure pulse fault ranging

Pulse Current Fault Location

Sound and magnetic synchronization positioning

Cable Path Detection

Fault Distance Measurement Function:

Low-pressure pulse method: Suitable for distance measurement in low resistance, short-circuit, and open circuit faults.

Pulse Current Method: Suitable for distance measurement of high-resistance and flashover faults. Signals are collected from the ground wire using a current coupler, isolated from the high-voltage section, ensuring safety and reliability.

Spot Function:

Acoustic magnetic synchronous reception, strong anti-interference capability.

Acoustic signal waveform display, making it easy to differentiate between signals and noise.

Indicate the acousto-magnetic delay for cursor measurement, to determine the proximity of the fault point.

The path detection can be performed simultaneously with the positioning, based on the initial polarity of the magnetic field waveform.

Path detection feature:

Signal Generator:

High-capacity lithium-ion battery-powered, free from grid power constraints.

Fully automatic power matching and protection, no manual adjustment required.

Higher power output.

Tone Peak/Tone Valley Path Detection.

Signal Amplitude Display.

Depth can be measured using either 80% method or 45° method.

Large-screen LCD display with user-friendly and simple interface.

SD card stores test waveforms, with large storage capacity, allowing import into computers for archiving, analysis, and printing.

Built-in high-capacity lithium-ion battery, with quick charger included.

Power Management: Activates different power paths based on various functions to minimize power consumption; if there is no operation for 15 minutes, the instrument will shut down automatically; the device will also shut down automatically when the battery is low to protect the battery.

Integrated equipment, compact and portable.

Technical Specifications

Technical Specifications (M for the main unit, T for the signal generator, M&T for shared features)

Distance Measurement Function (M):

Distance Measurement Mode: Low-pressure Pulse, Pulsed Current.

Sampling Frequency: 100 MHz.

Resolution: Low-pressure pulse mode 1m; pulse current mode 4m.

Low-pressure pulse mode emission voltage: 30V.

Range: 30 km.

Blind spot: 2 meters.

Acoustic Magnetic Synchronization Fixed Positioning Function (M)

Sound Signal Frequency Band: Center Frequency 400Hz, Bandwidth 200Hz.

Signal Gain: 80 dB.

Spot Accuracy: 0.1m.

Path Detection Function (M)

Receiving Frequency: 1 kHz.

Gain: 80 dB.

Path Detection Signal Generator (T)

Transmission Frequency: 1 kHz.

Emission Power: ≥3.5W

Output Characteristics: Open-circuit voltage ≥ 100Vp-p; short-circuit current ≥ 300mA; automatic matching to actual load; automatic short-circuit protection. Power Supply:

Battery (M&T): Integrated lithium-ion battery pack, nominal voltage 7.4V, capacity 3000mAh.

Power Consumption: Host (M) 400mA, continuous usage time > 6 hours; Signal Generator (T) 500mA. continuous usage time > 5 hours.

Charger (M&T): Input AC220V±10%, 50Hz; rated output 8.4V, DC1A.

Charging Time (M&T): <4 hours.

Display: Master (M) 320×240 dot matrix LCD screen; Signal Generator (T): Meters.

Volume (M&T): 270mm x 220mm x 80mm.

Quality: Main unit (M) 1.5kg; Signal generator (T) 1.5kg.

Terms of Use (M&T): Temperature: -10℃ - 40℃, Humidity: 5-90% RH, Altitude: <4500m.