HZ-501B 35kV Intelligent Cable Fault Testing Equipment

Huazheng Electric Manufacturing (Baoding) Co., Ltd. is one of the leading manufacturers and suppliers of hz-501b 35kv intelligent cable fault testing equipment in China. Please feel free to buy high quality equipment for sale here from our factory. Good service and reasonable price are available.

HZ-501B 35kV Intelligent Cable Fault Testing Equipment

I. Application

The system is specifically engineered for comprehensive power cable diagnostics. It is capable of detecting faults in cables rated up to 35 kV, accurately calibrating cable length, and precisely determining both the burial direction and depth of underground cables.

II. Configuration

TDR Cable Fault Tester – Technical Specifications

Main Features

The cable fault tester is equipped with a Windows operating system and a touch-screen interface, providing intuitive and efficient operation. Wireless expert online guidance enables remote support, while the scientific cable management system ensures organized data handling. Real-time report generation facilitates immediate documentation, and the 10-pulse and 10-flashover waveform superposition analysis enhances fault identification accuracy. The instrument also includes built-in operation instructions, a comprehensive cable parameter database, and a measured case library for reference. Additional capabilities include ranging, speed measurement, and full cable management functions.

Key Functions

The instrument features a sampling frequency of 100 MHz, delivering a minimum resolution of 0.5 m (at 100 m/µs). Fully automatic continuous sampling ensures that every discharge waveform is captured without omission. Three test methods are supported: the flashover method, low-voltage pulse method, and multiple waveform analysis method.

Main Specifications

The pulse generator provides an amplitude of 100 Vpp with selectable pulse widths of 0.1 µs and 2 µs. The measuring distance ranges from a minimum of 15 m to a maximum of 30 km. Coarse measurement absolute error is ±10 m, with a relative error of ±1%. The instrument complies with DL/T849.1-2004, which specifies an error tolerance of ≤ ±(1% L + 20) m, where L represents the cable length.

Power is supplied by a built-in 12 V / 10 Ah DC battery, providing up to 4 hours of continuous operation, or via an external AC 220 V, 50 Hz power source.

Pinpointer HZ-503

Usage: Cable fault pointing device is to determine the power cable failure point by means of acoustics. An electronic flashover is generated by means of an impingement discharge generator. The acoustic and magnetic signals of the electronic flashover wave are picked up and amplified by the corresponding probes, and are judged by hearing and visual. To determine the exact location of the fault point, that is, to complete the precise positioning task within the rough measurement range of the cable fault point.

Performance:

(1) Acoustic waves and electromagnetic waves generated when the fault point is discharged can be synchronously received to determine the position of the cable fault point.

(2) Magnification, 500,000 times.

(3) Working voltage: ±9V±20%

(4) Quiescent current: <10mA

(5) Receive signal: vibration and magnetic field signals when the fault is discharged

(6) Output impedance: 350Ω

(7) Positioning accuracy: 0.2m

Cable route tracer HZ-504

Usage: Cable path meter is a special instrument for accurately detecting the position and depth of buried cable in a certain range; path detection is completed by the path signal generator and path signal receiver (cable fault fixed point meter); The cooperation between the two uses the operation to accurately locate the cable path within the approximate cable embedding range.

Main composition

Path detection is mainly composed of path signal generator and receiver

index parameter

a) Working mode: continue square wave signal

b) Output signal: audio

c) Receive signal: audio

d) output power: 100W;

f) Working power supply: 220V (1±10%) 50Hz (1±5%);

High voltage generator HZ-535-4C

This advanced cart-type experimental instrument represents a significant leap forward in cable fault testing and high-voltage experimentation. It consolidates five essential components-a DC high-voltage source, storage capacitor, discharge ball gap, automatic discharge device, and cable fault tester-into a single, mobile unit. This integrated design effectively eliminates the common drawbacks of traditional experimental setups, including inconvenient transport, cumbersome assembly, and safety concerns.

The instrument is built around high-precision, high-stability specialized high-voltage electronic components, leveraging high-frequency high-voltage technology to achieve a streamlined and simplified overall structure. Despite its advanced internal design, the pulse generator features a human-centric interface that preserves familiar operating habits by replicating the traditional transformer-and-control-box method for generating DC high voltage. Simultaneously, it integrates reliable micro-circuitry to deliver enhanced performance and precision.

The main technical indicators:

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