KYN28-12 indoor metal armoring movable switch cabinet

Features
  • Sufficient air insulating distance to avoid the probability of inter-phase accident.
  • The protection grade of shell is IP4X to better prevent human body and external solid from approaching to the live part and ensure personnel safety and reliable operation of equipment;
  • The key parts of large current equipment is made of non-permeability magnetic material to reduce the eddy-current loss effectively.
Applicable place
  • Power transmission of power plant and small/medium-sized power generator, power distribution of industrial and mining enterprises, power receiving and distribution of secondary substation of power system and start of large-scale high voltage electric motor.

Product Details

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  • Model Description



  • Features
    • Sufficient air insulating distance to avoid the probability of inter-phase accident.
    • The protection grade of shell is IP4X to better prevent human body and external solid from approaching to the live part and ensure personnel safety and reliable operation of equipment;
    • The key parts of large current equipment is made of non-permeability magnetic material to reduce the eddy-current loss effectively.
  • Conditions of Use
    • Ambient temperature: Maximum temperature: +40℃; Minimum temperature: -15℃
    • Ambient humidity: Daily average relative humidity: ≤95%; Monthly average relative humidity: ≤90%
    • Altitude: ≤1,000m
    • The seismic intensity is ≤8°

  • Technical Parameters


    S/N

    Item

    Unit

    Technical parameters

    1

    Rated voltage

    kV

    12

    2

    Rated insulation level

    Short-duration power-frequency withstand voltage for 1min

    kV

    42

    3

    Lightning impulse withstand voltage

    kV

    75

    4

    Rated frequency

    Hz

    50

    5

    Rated busbar current

    A

    630, 1250, 1600, 2000, 2500, 3150, 4000

    6

    Rated short-time withstand current (4S)

    kA

    20, 25, 31.5, 40, 50

    7

    Rated peak withstand voltage

    kA

    50, 63, 80, 100, 125

    8

    Rated short-circuit making current

    kA

    50, 63, 80, 100, 125

    9

    Protection grade

    The shell is IP4X (Compartment, and when the breaker chamber door opened, it is IP2X)

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