Product Overview

EDHZC--4H Multi-Pulse Cable Fault Testing System (Portable) is an integrated unit that combines distance measurement, tracing, positioning, and impulse high-voltage generator for easy mobility, transportation, and on-site testing. It is a comprehensive cable fault location device. It can test high-resistance flashover faults in cables, grounding faults with both high and low resistances, short circuits, and open circuits, as well as poor contacts. With the addition of an acoustic location instrument, it can accurately determine the location of the fault. It is used for distance measurement, tracing, burial depth detection, and fault location of various types of underground cables, overhead cables, power cables, local telephone cables, communication cables, and optical fibers. The Multi-Pulse Cable Fault Testing Instrument represents the high level of cable fault testing in China and has reached international standards, holding a prominent position domestically and significantly surpassing other types of cable fault testing equipment. The EDHZC--4H Multi-Pulse Cable Fault Testing System is another cable fault location device meticulously developed by Hubei Electric based on the sampling technology of the secondary pulse cable fault testing method. It simplifies the complexity and difficulty of cable fault location and proposes newer cable testing methods and means, achieving a quicker and simpler way to judge fault waveforms, bringing about a revolutionary change in cable fault location!

Product Features

Multiple distance measurement methods:

Low-voltage pulse method: Suitable for distance measurement of low resistance, short circuit, and open circuit faults. Also used for measuring the full length of cables, intermediate joints, T-joints, and terminal heads, as well as for wave velocity calibration.

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

Multiple-pulse method: A world-class distance measurement method, an improvement over the two-pulse method. Waveforms are clear and easily identifiable, with high accuracy in distance measurement.

200MHz real-time sampling:

Domestic similar instruments offer high sampling frequencies, aligning with international high standards.

Offering a distance measurement resolution of 0.4m, with a small measurement blind spot, it is particularly effective for near-end faults and short cables.

Touch operation and mechanical button operation

Touch-sensitive buttons offer greater flexibility in operation, featuring gesture control capabilities.

You can drag the cursor, perform double-click operations, making positioning simpler and more convenient.

Compatible with mechanical key operation, featuring a five-way directional keypad for enhanced user-friendliness.

LED Large Screen Color LCD Display, User-friendly Interface:

Clear waveforms, especially during multiple pulse tests, where multiple waveforms are displayed simultaneously in different colors, making them easier to identify.

7-inch large screen LCD, 160° viewing angle, featuring rich and intuitive display content.

The feature menu is simple and practical, with powerful functions.

Picture-in-Picture Temporary Display Function

The interface display utilizes picture-in-picture mode, consisting of one main window and three temporary storage windows, allowing for simultaneous viewing of three temporary waveforms, making the waveform comparison function simpler, more intuitive, and convenient.

Technical Specifications

Operating Modes: Low-voltage Pulsing, Pulsed Current, Multiple Pulsing.

Signal Gain Adjustment Range: 70dB.

Low-pressure pulse emission voltage: 30V.

High resolution: 0.4m.

High Resolution: 0.4m.

High Sampling Rate: 200MHz real-time sampling.

Wide measurement range: 100km.

Measurement Blind Spot: 2m.

Communication Interface: USB.

Power Source: Polymer Lithium-ion Battery Pack, nominal voltage 7.4V.

Push Buttons: Featuring imported Danish push buttons with a reliability of no less than 10 million presses.

Battery Runtime: With a fully charged polymer lithium-ion battery, it can be used continuously for more than 5 hours (the continuous runtime will accordingly shorten as the battery ages).

Charger: Input AC 220V, 50Hz, charging current 2A, charging time 8 hours.

Dimensions: 274×218×81mm

Quality: 3.5 kg

Terms of Use:

Temperature: -10℃ to +40℃

Humidity: 5% to 90% RH (at 25°C)

Altitude: h<4500m.