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JDZ11‑20 Voltage Transformer | 20kV Indoor Cast Resin Potential Transformer

The JDZ11-20 voltage transformer is suitable for AC power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 20kV. It is widely used in the power industry and is mainly used for important functions such as power metering, voltage monitoring and relay protection to ensure the safe and stable operation of the power system.

The product execution standards are GB20840.1-2010 and GB20840.2-2013.

    Model and its meaning

    JDZ11-20.jpg

    Summarize

    Reliability is the cornerstone of our indoor voltage transformer design. Through rigorous quality testing and extensive field verification, this product demonstrates exceptional durability and reliability. It operates stably in a variety of harsh operating environments, ensuring the continuous and efficient operation of the power system. The high reliability of our indoor voltage transformers not only minimizes the risk of equipment failure but also contributes to improving the stability of the entire power system.

    Our indoor voltage transformers are widely used for voltage monitoring and protection in substations, distribution rooms, factories, and mines. As industry increasingly moves towards automated and intelligent power systems, the role of reliable voltage measurement equipment becomes increasingly important. Our indoor voltage transformers are ideally suited for these applications, providing the necessary accuracy and reliability to support modern power management strategies.

    Normal service condition

    Installation location: Indoors, suitable for use in various electrical facilities.

    Ambient temperature: Maximum temperature 40℃; minimum temperature -5℃; daily average temperature not exceeding 30℃, to ensure normal operation and stability of the equipment.

    Atmospheric conditions: The atmosphere is free of severe pollution to ensure the long-term reliability and safety of the equipment.

    Technical parameter

    Product
    model

    Rated voltage ratio(kV)

    Accuracy level or a combination
    of accuracy levels

    Rated
    output(VA)

    Extreme
    output(VA)

    Rated insulation level(kV)

    JDZ11-20

    20/0.1

    0.2

    30

    500

    24/65/125

    0.5

    80

    20/0.1/0.1

    0.2/0.2

    20/20

    300

    0.2/0.5

    20/30

    0.5/0.5

    30/30

    Structure and characteristics

    This voltage transformer features a pillar-type structure and is fully enclosed in epoxy resin casting, providing excellent resistance to contamination and moisture, making it suitable for use in tropical regions. The transformer is rationally designed and requires no special maintenance; only periodic cleaning of the surface is needed to ensure normal operation. A terminal box is installed at the secondary output terminals of the transformer. The terminal box has a hole on the front and side to mate with the output terminals, facilitating easy wiring and ensuring safety and reliability. The product base plate is equipped with a grounding bolt and four mounting holes for secure installation.

    JDZ11-20.jpg