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    110kV-500kV SF6 Composite Insulated Current Transformer
    • Description
    • Parameter

    Structure: in inverted vertical structure and filled with SF6 gas. Density relay is equipped for online monitoring.

    Features:

    ² Superior dynamic thermal stability, electrical insulation and anti-seismic performance

    ² Superior electrical insulation performance and low partial discharge

    ² Excellent anti-ultraviolet performance and anti-aging performance

    ² Small weight, easy for transportation and installation

    ² Stable and reliable quality and short delivery time

     

    Type

    LVQHB-110

    LVQHB-220

    LVQHB-330

    LVQHB-400

    LVQHB-500

    Highest voltage for equipment (kV)

    126

    252

    363

    420

    550

    Rated voltage (kV)

    110

    220

    330

    400

    500

    Rated frequency (Hz)

    50 or 60

    50 or 60

    50 or 60

    50 or 60

    50 or 60

    Rated primary current (A)

    2×(150-1000)

    2×(300-1500)

    2×(300-2500)

    2×(1250-3000)

    2×(1250-3000)

    Rated secondary current (A)

    5 or 1

    5 or 1

    5 or 1

    5 or 1

    5 or 1

    Rated output (VA)

    10-60

    10-60

    10-60

    10-60

    10-60

    Accuracy class of measuring side

    0.1、0.2、0.5、0.2S、0.5S

    0.1、0.2、0.5、0.2S、0.5S

    0.1、0.2、0.5、0.2S、0.5S

    0.1、0.2、0.5、0.2S、0.5S

    0.1、0.2、0.5、0.2S、0.5S

    Accuracy class of protective side

    5P、10P、TP

    5P、10P、TP

    5P、10P、TP

    5P、10P、TP

    5P、10P、TP

    Creepage distance (mm)

    3300

    6300

    10845

    13195

    14350

    Static load on primary terminals

    3000

    4000

    6000

    6000

    6000

    Dielectric dissipation factor

    0.005

    0.005

    0.005

    0.005

    0.005

    Partial discharge (pC)

    5

    5

    5

    5

    5

    Rated primary power frequency withstand voltage (kV)

    230

    460

    510

    680

    740

    Lightning impulse withstand voltage (kV)

    550

    1050

    1175

    1550

    1675

    Chopped lightning impulse (kV)

    632.5

    1207.5

    1351.5

    1782.5

    1782.5

    Switching impulse voltage (kV)

    /

    /

    950

    1175

    1234

    Rated short-time thermal current (kA)

    40

    63

    63

    63

    63

    Rated dynamic current (kV)

    100

    160

    160

    160

    160

    Rated service pressure (MPa)

    0.4

    0.4

    0.4

    0.4

    0.45

     

    *  All products can be designed and produced according to client’s demands.

    Product application:
    Since the successful development of this series of products in 2001, more than 10000 sets have been successfully operated.
    For example, more than 500 400kV current transformers have been used in India.

        
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