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JDZJ‑3,6,10 3‑10kV Instrument VT Epoxy Potential Transformer

Voltage transformers play an important role in power systems and can improve the safety, reliability and economy of the system.The JDZJ-3, 6 and 10 type voltage transformers are suitable for AC power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 3 to 10 kV, and are used for electric energy metering, voltage monitoring and relay protection.
The product execution standards are GB20840.1-2010 and GB20840.2-2013.

    Model and its meaning

    JDZJ-3、6、10.jpg

    Summarize

    Voltage transformers (VTs) have many advantages in power systems, including the following:

    Safety: Voltage transformers can reduce high voltages to safe levels, facilitating measurement and monitoring, and protecting equipment and personnel.

    Precise measurement: Voltage transformers can provide high-precision voltage measurement, ensuring the accuracy of power system monitoring and control.

    Isolation function: The voltage transformer provides electrical isolation between the high-voltage and low-voltage sides, preventing high voltage from damaging the measurement equipment and control system.

    Strong adaptability: Voltage transformers can be applied to various power systems, including AC and DC systems, to meet the needs of different occasions.

    Improve system stability: By monitoring and controlling voltage, voltage transformers help improve the stability and reliability of power systems.

    Easy to automate and monitor remotely: Voltage transformers can be integrated with automation and monitoring systems to facilitate remote monitoring and data collection.

    Reduced costs: By using voltage transformers, the need for high-voltage measurement equipment can be reduced, thereby reducing overall system costs.

    Multifunctionality: Some voltage transformers can also integrate other functions, such as frequency measurement, phase measurement, etc., to provide more monitoring information.

    Normal service condition

    Installation site: Indoor.

    Ambient temperature: Maximum air temperature 40℃ ; The minimum temperature is -5℃ . The daily average temperature does not exceed 30℃ .

    Atmospheric conditions: There is no severe pollution in the atmosphere.

    Technical parameter

    Product
    model

    Rated voltage ratio(KV)

    Accuracy
    level

    Rated
    output(VA)

    Extreme
    output(VA)

    Rated insulation
    level(KV)

    JDZJ-3

    3/√ 3/0.1√3/0.1/3

    0.2

    15

    300

    3.6/25/40

    0.5

    30

    JDZJ-6

    6√ 3/0.1√3/0.1/3

    0.2

    20

    400

    7.2/32/60

    0.5

    50

    JDZJ-10

    10√3/0.1√3/0.1/3

    0.2

    25

    500

    12/42/75

    0.5

    50

    Structure and characteristics

    This series of voltage transformers are semi-enclosed epoxy cast type. The core is made of high-quality silicon steel sheets stacked together, and there are cylindrical concentric primary and secondary coils in the cast body. There is a grounding bolt and four installation holes for installation on the bottom clamp of the product.

    JDZJ-3、6、10.jpg