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KYT1 (KYN61) - 40.5 armored removable AC metal enclosed switchgear

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  • KYT1 (KYN61) - 40.5 armored movable AC metal enclosed switchgear is a complete indoor power distribution device with three-phase AC 50 Hz and rated voltage 40.5 kV. As power plants, substations and industrial and mining enterprises to accept and distribute electric energy, it can control, protect and detect the circuit, and can also be used in frequent operation places.

    Product features

    a. The cabinet structure adopts the assembled type, and the circuit breaker adopts the handcart floor type structure;

    b. Equipped with a new type of composite insulation vacuum circuit breaker, it has the characteristics of good interchangeability and simple replacement;

    c. A screw nut propulsion mechanism is installed in the handcart frame, which can easily move the handcart and prevent damage to the propulsion mechanism due to misoperation;

    d. All operations are carried out when the cabinet door is closed;

    e. The interlock among the main switch, handcart and cabinet adopts the forced mechanical locking mode to meet the "five prevention" function;

    f. The cable room has plenty of space and can connect multiple cables;

    g. The protection grade of the shell is IP4X, and the protection grade is IP2X when the door of the handcart is open.

    Description

    Unit

    Value

    Rated voltage

    kV

    40.5

    Rated frequency

    Hz

    50

    Rated current

    A

    1250,1600,2000

    Rated short circuit breaking current

    kA

    25,31.5

    Rated closing current (peak value)

    kA

    63,80

    4S thermal stable current

    kA

    25,31.5

    Rated dynamic stability current (peak value)

    kA

    63,80

    rated

    insulation

    level

    1min power frequency withstand voltage (effective value)

    (phase to phase, phase to ground)

    kV

    95

    Lightning impulse withstand voltage (peak value)

    kV

    185

    1min power frequency withstand voltage of isolated fracture (effective value)

    kV

    118

    Lightning impulse withstand voltage of isolated fracture (peak value)

    kV

    215

    Enclosure protection level

     

    Enclosure IP4X, compartment IP2X
    Cabinet dimensions (W x D x H)

    mm

    1400x2800x2600
      1600x2800x2600(所变柜)

    Model of circuit breaker

     

    Vacuum circuit breaker: zn85-40.5

    SF6 circuit breaker: FP (Alstom)

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