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20kV JDZX11‑20 Cast Resin Potential Transformer Indoor Instrument VT

The JDZX11-20 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, primarily for important functions such as energy metering, voltage monitoring, and relay protection to ensure the safe and stable operation of the power system. The design of this equipment fully considers reliability under high-voltage environments, effectively meeting the needs of different power applications and providing users with accurate voltage measurement and monitoring.

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

    Model and its meaning

    JDZX11-20.jpg

    Summarize

    The advantages of 15-35KV indoor voltage transformers are mainly reflected in four core dimensions: environmental adaptability, safety protection, operation and maintenance costs, and installation flexibility, which can well match the needs of complex indoor power consumption scenarios.

    1. Strong environmental adaptability and high stability: The indoor environment can avoid the impact of harsh outdoor conditions, so this type of current transformer has better operational stability.

    2. High level of safety protection and reduced risk: The safety design is more comprehensive, taking into account the frequent activities of people indoors.

    3. Low operation and maintenance costs and convenient management: Its structure and usage scenarios determine that its operation and maintenance needs are simpler.

    4. Good size adaptability and flexible installation: It fits the characteristics of indoor space layout.

    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 or a combination
    of accuracy levels

    Rated
    output(VA)

    Extreme
    output(VA)

    Rated insulation level(kV)

    JDX11-20

    20/√3/0.1√3/0.1/3

    0.2/6P(3P)

    30/100

    500

    24/65/125

    0.5/6P(3P)

    80/100

    5√3/0.1√3/0.1√3/0.1/3

    0.2/0.2/6P(3P)

    15/15/100

    300

    0.2/0.5/6P(3P)

    20/20/100

    0.5/0.5/6P(3P)

    30/30/100

    Structure and characteristics

    This type of voltage transformer features a pillar-type structure, employing a fully enclosed epoxy resin casting process. It is resistant to pollution and moisture, making it suitable for use in tropical regions. Its excellent weather resistance and anti-aging properties ensure stability under various environmental conditions. The transformer requires no special maintenance; only periodic cleaning of surface contaminants is necessary to maintain optimal operating condition and extend its service life. 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 for wiring, ensuring safety, reliability, connection stability, and ease of use. The product base plate has a grounding bolt and four mounting holes for flexible installation and fixation, adapting to different installation requirements.

    JDZX11-20.jpg