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  • UHV-500 Cable Fault Location Detector

    UHV-500 Cable Fault Location Detector is an important test tool for cable communication cable and power transmission cable line maintenance. It can be used to detect the low resistance, high resistance, short circuit, open circuit, leakage fault and flashover fault of various cables

    Product Details of UHV-500 Cable Fault Location Detector


    Product Overview

    The reliable operation of communication and power transmission systems depends entirely on the integrity of cable circuits. Once a circuit failure occurs, failure to conduct timely and accurate fault diagnosis and repair will inevitably lead to significant economic losses and adverse social impacts. Therefore, electric fault measuring and testing instruments play a vital role in maintaining system stability.

    The Intelligent Cable Fault Tester employs multiple testing methodologies, integrates the most advanced electronic components, and utilizes cutting-edge computer and specialized electronic technologies. Building upon our company's extensive experience in the research and development of cable fault testing instruments, this device represents a highly technological, intelligent, and feature-rich solution.

    As a fully integrated testing system, our cable fault detector is capable of identifying a wide range of faults, including:

    High-resistance flashover faults

    High- and low-resistance grounding faults

    Short circuits, open circuits, and poor contact

    When used in conjunction with acoustic or electromagnetic locating instruments, it can accurately pinpoint the exact fault location. This instrument is especially suitable for testing various types of power cables and communication cables.


    Product Characteristics
    1、Full Functionality: The tester enables safe, rapid, and accurate fault detection. It employs both the low-voltage pulse method and the high-voltage pulse flashover method to identify a variety of cable faults. For flashover faults, testing can be performed directly without the need to burn through the cable. When used in conjunction with an acoustic tester, the exact fault location can be accurately determined.
    2、High Precision: The instrument utilizes a high-speed data sampling method with an A/D sampling rate of up to 100 MHz, providing a read resolution of 1 meter and a detection blind zone of only 1 meter.
    3、Low Static Drift: Core components are imported from reputable suppliers, ensuring reliable and stable performance.
    4、High Output Power: A precision high-power tube is used internally to ensure strong output signal power with minimal attenuation.
    5、Comprehensive Protection: The built-in protection circuit is fully integrated, offering overvoltage and overcurrent protection to safeguard the instrument during operation.
    6、Portable Design: Powered by a built-in rechargeable battery, the instrument is suitable for use in a wide range of field conditions.
    7、High Positioning Accuracy: Equipped with a quartz crystal oscillator and a high-speed signal processing chip for precise signal sampling and processing. Acoustic and magnetic synchronization functions ensure accurate and reliable fault positioning.
    8、Adaptive Communication Speed: The instrument features adjustable communication speed depending on the characteristics of the cable under test.
    9、Strong Anti-Interference Capability: The instrument maintains stable performance and reliable operation even under severe electromagnetic interference.
    10、High Receiving Sensitivity: Special manufacturing techniques enhance transmission distance, allowing the instrument to receive signals clearly even under challenging conditions.


    Technical parameters

    The longest testing distance15km (100km for the open-wire line)
    Testing .dead zone1m
    Resolution of reading1m
    Power dissipation5VA
    environment temperature0℃~+40℃
    terminal temperature-10℃~+50℃
    relative humility20-90%RH
    Dimension275×220×160mm3
    Weigh1.8kg

    Pathfinders

    operation modeOutput - fixed frequency intermittent square wave signal
    Output PowerPomax≥100W
    Output impedance1Ω-∞
    Output signal frequency16kHz
    Output signal amplitude15V-340V
    Pathfinder transmitter power supplyAC220V±10℅

    Fault locator

    Rough measurement errorLess than 10%
    Fixed-point error<±10cm
    Electromagnetic channel gain>110dB (300,000 times)
    Electromagnetic channel receiver sensitivity<5μV
    Sound channel audio amplifier gain<120dB (1 million times when the signal-to-noise ratio is 4:1)
    50Hz Power frequency rejection>40dB (100 times)
    Power consumption<120mA (0.7W)
    Buried depth detection≦3m









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