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LSY current transformer side.jpg
LSY current transformer.jpg

LSY series three phase integrated current transformer

 The LSY series three-phase integrated current transformer is a high-precision electrical measurement device designed to accurately monitor and transform three-phase current signals in power systems. Featuring an integrated structure, it offers compact installation, strong anti-interference capability, and reliable performance, ensuring stable operation in various industrial and power distribution applications. With high measurement accuracy and excellent overload capacity, this transformer efficiently converts high primary currents into low secondary currents for metering, protection, and control systems, playing a critical role in ensuring the safety, efficiency, and reliability of power networks.

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    product details
    product description

    LSY series Indoor epoxy cast-resin three phase integrated current transformer

    It is suitable for 35kV power system, the primary main insulation is ensured by cables. The products accord with the standards of GB20840.2-2014, IEC 61869-2:2012 and some special demands.

    Rated voltage: 0.5kV

    Rated frequency: 50Hz

    Rated secondary current: 5 or 1A

    Ambient temperature: -5℃~+40℃

     

    Our models:

    LSY-107/76/65

    LSY--107/76/65 (side outlets)

    LSY--107/78/80

    LSY--110/82/70

    LSY--120/83/65

    LSY--127/80/65

    LSY--130/76/70

    LSY--150/76/65

    LSY--150/82/55 (65)

     

    Application

    Measuring  current transformer

    Protection current transformer

    Double-winding current transformer

    Current ratio I1/I2

    Accuracy class and rated capacity (VA)

    Double-winding accuracy class and rated capacity (VA)

    0.5

    1

    3

    10P15

    10P10

    10P5

    0.5

    1

    10P10

    10P5

    100

    2.5

     

     

     

    1.5

    3.75

     

     

     

     

    150

    3.75

     

     

     

    2.5

    5

     

     

     

     

    200

    5

     

     

     

    2.5

    7.5

    2.5

     

     

    2.5

    300

    7.5

     

     

     

    3.75

    10

    2.5

     

    2.5

    5

    400

    10

     

     

    2.5

    5

    15

    2.5

     

    2.5

    7.5

    500

    10

     

     

    2.5

    5

    15

    2.5

     

    3.75

    10

    600

    10

     

     

    2.5

    7.5

    20

    5

     

    3.75

    10

    800

    10

     

     

    2.5

    7.5

    20

    5

     

    5

    15

     

    Application

    Measuring  current transformer

    Protection current transformer

    Double-winding current transformer

    Current ratio I1/I2

    Accuracy class and rated capacity (VA)

    Double-winding accuracy class and rated capacity (VA)

    0.5

    1

    3

    10P15

    10P10

    10P5

    0.5

    1

    10P10

    10P5

    100

    2.5

    5

    7.5

     

    1.5

    2.5

     

    2.5

     

    2.5

    150

    2.5

    5

    7.5

     

    2.5

    3.75

     

    3.75

     

    2.5

    200

    3.75

    5

    10

     

    2.5

    5

    2.5

     

     

     

    300

    5

    7.5

     

     

    3.75

    7.5

    2.5

     

     

     

    400

    10

     

     

    2.5

    5

    10

    2.5

     

    2.5

    5

    500

    10

     

     

    2.5

    5

    10

    3.75

     

    2.5

    5

    600

    10

     

     

    5

    10

    15

    5

     

    5

    10

    800

    15

     

     

    5

    10

    15

    5

     

    5

    15

     

    Application

    Zero-sequence current transformer

    Rated current ratio I1/I2

    Accuracy class

    3

    10P

    20/1

    0.5

    0.5

    30/1

    0.5

    0.5

    50/1

    0.5

    0.5

    100/1

    1

    1

    50/5

    1.5

    1.5

    75/5

    2.5

    2.5

    100/5

    2.5

    2.5

    150/5

    2.5

    2.5

     

    Notes: Specification can be customized.

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