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Huazheng HZ-IV Transformer Low Voltage Short-circuit Impedance Tester

The Transformer LV Short-Circuit Impedance Tester is designed for use in LV load impedance testing during delivery, overhaul, trial tests, and handover tests of power transformers (both single-phase and three-phase).

It measures the short-circuit impedance (%) of the power voltage on-site and compares it with the value indicated on the nameplate or the factory default. This helps identify any defects, such as winding displacement or deformation, which may result from major failures during transportation, installation, or operation after the delivery test. (A significant change in short-circuit impedance is considered if it exceeds ±3%, as specified in the China International Conference on Electricity Distribution 2000 (“CICED 2000”)).

The Transformer LV Short-Circuit Impedance Tester does not require an external voltage regulator and uses a primary connection mode. Once the parameters are entered, the tester automatically begins the three-phase testing, calculates the impedance error percentage, and provides intuitive results. This is a rapid and efficient tester for detecting winding deformation in transformers on-site.

    Handheld Capacitance Inductance Tester (2)

    I. Characteristics

    1.The tester is powered by AC 220V low voltage, automatically providing current to the AB, BC, and CA high-voltage windings of the transformer. It simultaneously collects data and calculates the impedance error percentage, providing intuitive testing results.
    2.The tester completes three-phase testing automatically in the primary connection mode, rather than requiring an inverted connection with the testing wires.
    3.The tester supports both single-phase and three-phase testing, with manual and automatic modes available.
    4.The tester achieves current output limits suitable for any impedance test item.
    5.The test item can be measured without the need for an external voltage regulator.
    6.The tester is capable of measuring zero-sequence impedance.
    7.The tester can also measure inductance.
    8.The tester features a large LCD display with a menu in Chinese. Operations are made easier by on-screen notes.
    9.The tester allows for printing and data storage. It is characterized by high testing accuracy, high automation, compact size, and lightweight design.

    II.Technical Parameters

    Scope of voltage measurement: 5~400V Accuracy of measurement: 0.2d
    Scope of current measurement: 0.1~20A Operating power: AC220V±10%
    Power frequency: 50Hz Operating temperature: -10℃~50℃
    Ambient humidity: ≤85%RH Net weight: 6kg

    III.Packing List

    No.

    Item

    Qty

    1

    Private wire

    1

    2

    Power wire

    1

    3

    Ground wire

    1

    4

    Line box

    1

    5

    Fuse

    1

    6

    Typing paper

    1

    Order and Service

    1.A one-year free warranty is provided for products with quality issues, starting from the date of manufacture. Material costs will be charged for any damage caused by factors other than quality issues. Repair and maintenance costs will only be charged if the warranty period has expired.
    2.We offer lifetime maintenance and technical support for our products.
    3.Please contact us immediately if any abnormalities are discovered in the tester. We will provide the most convenient solution for you. DO NOT disassemble the tester!
    变压器测试系列
    Handheld Capacitance Inductance Tester (1)

    TO KNOW MORE ABOUT Huazheng, PLEASE CONTACT US!

    Our experts will solve them in no time.