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0102030405
1.LZZBJ9-12-175b-2(4).jpg
2.LZZBJ9-12-175b-2(4).jpg

LZZBJ9-12/175b/2(Series Current Transformers from China Suppliers - Reliable Power Monitoring Solutions from Factory

Our current transformers are essential components in power systems, widely utilized in power monitoring, protection relays, metering equipment, and various other applications. As leading suppliers in China, we offer reliable current measurement solutions for industrial, commercial, and domestic power management needs. Our products adhere to the execution standards GB20840.1-2010 and GB20840.2-2014, ensuring quality and performance. Partner with a trusted factory to enhance your power management efficiency with our top-notch current transformers
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    Product Detail

    Model and Its Meaning
    LZZBJ9-12-175b-2(4).jpg
    Summarize
    Current transformers must be operated within specified normal operating conditions. They should be installed indoors in a temperature-controlled environment. They are designed to operate within a temperature range of -5°C to 40°C, with an average daily temperature not exceeding 30°C. These conditions are crucial to ensuring the lifespan and reliability of the current transformer, as extreme temperatures can adversely affect its performance and accuracy.
    Normal Service Condition
    • Installation Site: Indoor
    • Ambient Temperature: Maximum air temperature 40°C; The minimum temperature is -5°C. The daily average temperature does not exceed 30°C.
    • Atmospheric Conditions: There is no severe pollution in the atmosphere.
    Technical Parameter
    LZZBJ9-12/175b/2 Type — Technical Parameter Table of Current Transformer
    Product Model Rated Primary Current Accuracy Level Combination Rated Output Rated Short-Term Thermal Current Rated Dynamic Stability Current
    LZZBJ9-12/175b/2 5 0.2/10P10
    0.5/10P10
    0.2/10P15
    0.5/10P15
    0.2S/10P30    		 10/15
    10/15
    10/15
    15/15
    15/15    		 0.6 1.5
    10 1.2 3
    15 1.8 4.5
    20 2.4 6
    30 3.6 9
    40 4.8 12
    50 6 15
    75 9 22.5
    100 12 30
    150 18 45
    200 21 52.5
    300 0.2/10P10
    0.5/10P10
    0.2/10P15
    0.5/10P15
    0.2S/10P30    		 10/15
    10/15
    10/20
    15/20
    15/15    		 24.5 61.25
    400 32 80
    500
    600
    800 0.2/10P10
    0.5/10P10
    0.2/10P15
    0.5/10P15
    0.2S/10P30    		 15/20
    15/20
    15/20
    30/20
    15/15    		 50 125
    1000
    1200
    1250
    1500 0.2/10P10
    0.5/10P10
    0.2/10P15
    0.5/10P15
    0.2S/10P30    		 15/20
    15/20
    20/20
    30/20
    15/15    		 63 157.5
    2000
    2500
    3000
    3150
    LZZBJ9-12/175b/4 Type — Technical Parameter Table of Current Transformer
    Product Model Rated Primary Current Accuracy Level Combination Rated Output Rated Short-Term Thermal Current Rated Dynamic Stability Current
    LZZBJ9-12/175b/4 5 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 10/10/20
    10/10/15
    10/10/15
    10/15/15
    10/15/15
    10/10/15/15    		 0.6 1.5
    10 1.2 3
    15 1.8 4.5
    20 2.4 6
    30 3.6 9
    40 4.8 12
    50 6 15
    75 9 22.5
    100 12 30
    150 18 45
    200 21 52.5
    300 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 10/10/20
    10/10/20
    10/15/15
    10/15/20
    15/15/15
    10/10/15/15    		 24.5 61.25
    400 32 80
    500
    600 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 10/10/20
    10/10/15
    10/10/15
    10/15/15
    15/15/15
    10/10/15/15    		 32 80
    800 50 125
    1000 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 10/10/30
    15/15/20
    15/20/20
    10/15/15
    15/15/20
    10/10/15/15    		 50 125
    1200
    1250
    1500 63 157.5
    2000
    2500 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 15/15/30
    15/15/20
    15/20/20
    15/15/20
    15/20/15
    10/10/15/15    		 63 157.5
    3000 0.2/0.2/5P10
    0.2/0.5/5P15
    0.2/0.5/5P20
    0.2/5P10/10P15
    0.5/5P10/10P20
    0.2S/0.5/5P30/5P30    		 15/15/30
    15/15/20
    15/30/20
    15/15/20
    15/20/15
    10/10/15/15    		 63 157.5
    3150
    ⓘ  Rated Secondary Current: 5A or 1A  |  Rated Insulation Level: 12/42/75 kV
    Structure and Characteristics

    Fully Enclosed Epoxy Resin CastExcellent insulation and moisture resistance for long-term durability.

    Compact DesignSmall size and light weight make it easy to clean and maintain.

    Safe Secondary TerminalsEquipped with a terminal block for enhanced safety and reliability.

    Flexible InstallationBaseplate equipped with a grounding bolt and six mounting holes.

    Frequently Asked Questions
    QWhat is the rated insulation level of the LZZBJ9-12/175b series current transformer?
    The rated insulation level of the LZZBJ9-12/175b series is 12/42/75 kV. This ensures the transformer can safely operate in 12 kV systems while withstanding impulse and power-frequency voltage tests.
    QWhat ambient temperature range is required for the LZZBJ9-12/175b current transformer?
    The transformer is designed to operate in environments where the maximum air temperature does not exceed 40°C, the minimum temperature is no lower than -5°C, and the daily average temperature does not exceed 30°C.
    QWhat is the difference between the LZZBJ9-12/175b/2 and LZZBJ9-12/175b/4 models?
    The main difference lies in the number of cores and the available accuracy level combinations. The /2 model supports two-core accuracy combinations (e.g., 0.2/10P10), while the /4 model supports four-core combinations (e.g., 0.2/0.2/5P10), offering greater flexibility for metering and protection applications.
    QWhat rated secondary current options are available for this series?
    The LZZBJ9-12/175b series supports a rated secondary current of either 5A or 1A, allowing compatibility with a wide range of metering and protection equipment.
    QCan the LZZBJ9-12/175b current transformer be installed outdoors?
    No. The LZZBJ9-12/175b series is designed strictly for indoor installation in temperature-controlled environments. Outdoor installation is not recommended, as it may expose the unit to severe atmospheric conditions that could compromise performance and lifespan.
    QWhat are the key structural features of the LZZBJ9-12/175b current transformer?
    The transformer features a fully enclosed epoxy resin cast structure that provides excellent insulation and moisture resistance. It has a compact, lightweight design for easy maintenance, a secondary terminal block for safe connections, and a baseplate with a grounding bolt and six mounting holes for flexible installation options.