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    Products Product Details
    Product name: CVT
    Listing Date:2017-08-07

    Type CVT is an air-insulated tap changer of selector switch design. Its compact size fits well for distribution transformers up to 11kV system. In various highly populated sites or critical facilities, such as urban high rises, airports, etc., CVT is widely applied for fire-proof and low maintenance purpose. 


    Item

    Specification

    CVT

    1

    Number of phases

    3 phases, 1 phase

    2

    Maximum rated through current (A)

    160

    3

    Rated frequency (Hz)

    50 or 60

    4

    Connection

    Y- neutral point

    D-any connection

    5

    Max. rated step voltage (V)

    500

    6

    Rated step capacity (kVA)

    80

    7

    Short-circuit

    current test (kA)

    Thermal (3s)

    3

    Dynamic (Peak)

    7.5

    8

    Max. Operating Positions

    9

    9

    Insulation

    (kV)

    To ground

    Highest voltage for

    equipment Um

    12

    To ground and between phases

    Rated separate source AC

    withstand voltage (kV/50Hz,1min)

    35

    Rated lightning impulse

    withstand voltage (kV,1.2/50μs)

    85

    Between adjacent taps

    Rated separate source AC

    withstand voltage (kV/50Hz,1min)

    5

    Rated lightning impulse

    withstand voltage (kV,1.2/50μs)

    20

    Across the tap winding

    Rated separate source AC

    withstand voltage (kV/50Hz,1min)

    15

    Rated lightning impulse

    withstand voltage (kV,1.2/50μs)

    50

    10

    Time for one operation

    4.4s

    11

    Mechanical life

    Not less than 800,000 operations

    12

    Electrical life

    Not less than 300,000 operations

    13

    Motor drive unit

    SHM-D or CMA7


    Download / Download 更多>>
    2017 - 07 - 30
    The current flowing through an OLTC towards the external circuit, which the apparatus is capable of transferringfrom one tap to the other at the relevant rated step voltage and which can be carried co...
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    犀牛雲提供企業雲服務
    Address: No.977, Tongpu Road, Shanghai, 200333, China 
    Tel: 86 21 5270 8966
    E-mail: export@huaming.com
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