EDHZC-4B Portable Cable Fault Testing System

Product Description

The EDHZC-4B Mobile Cable Fault Testing System is a comprehensive cable fault locating device that integrates distance measurement, tracing, positioning, and impulse high-voltage generators, designed for ease of movement, transportation, and on-site testing. It can test high-resistance arc faults, ground faults with varying resistances, short circuits, cable breaks, and poor contacts. With the addition of an acoustic locating instrument, it can accurately determine the fault location. It is used for distance measurement, tracing, depth detection, and fault locating of various types of buried cables, overhead cables, power cables, local telephone cables, communication cables, and optical fibers.

Product Features

Features

Low-pressure pulse fault ranging

Pulse Current Fault Location

Acoustic Magnetic Synchronization Fixed Point

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. Uses a current coupler to collect signals from the ground wire, isolated from the high-voltage section, ensuring safety and reliability.

Fixed-point function:

Acoustic magnetic synchronous reception, strong anti-interference capability.

Acoustic magnetic signal waveform display, signal and noise are easily distinguishable.

Measure the acousto-magnetic delay of the cursor to determine the proximity of the fault point.

Path detection can be conducted simultaneously with positioning, based on the initial polarity of the magnetic field waveform.

Path detection feature:

Signal Generator:

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

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

Higher power output.

Tone peak/valley path detection.

Signal Amplitude Display.

Can perform 80% or 45° depth measurement.

Large screen LCD display with a user-friendly, simple, and easy-to-use interface.

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

Equipped with a built-in high-capacity lithium-ion battery and a fast charger.

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

Integrated equipment, compact and portable.

Technical Specifications

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

Ranging Function (M):

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

Sampling Frequency: 100 MHz.

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

Low-pressure pulse mode emission voltage: 30V.

Range: 30km.

Blind spot: 2m.

Sound and magnetic synchronous positioning function (M)

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

Signal Gain: 80 dB.

Fixed-point 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 with actual load; automatic short-circuit protection. Power supply:

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

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

Charger (M&T): Input AC 220V±10%, 50Hz; rated output 8.4V, DC 1A.

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

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

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℃ to 40℃, Humidity: 5-90% RH, Altitude: <4500m.