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Metal-clad removable AC enclosed switchgear

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Metal-clad removable AC enclosed switchgear
KYN28A-24

KYN28A-24KV-1

KYN28A-24KV-1

  • Description
  • Data Sheet
  • Product Introduction

    The KYN28A-24kV Armored Withdrawable AC Metal Enclosed Switchgear (hereinafter referred to as Switchgear) is a complete set of power distribution device for single bus bar and single sub-bus bar power system, with indoor three-phase 50/60Hz, rated voltage 24kV, which is mainly used for electrical power factory, small and medium capacity generators, industry factories as well as the secondary substation of the power system, to provide the controlling, protection and monitoring of the electric circuits.

    The switchgear has the interlock functions of the “five prevention”, i.e. the five prevention systems of the hand cart for pushing and pulling of circuit breaker, the error operation of circuit breaker, the error operating of grounding switch from disconnection, the error entering to the live cabinet, and the error connection of the grounding switch when it is in live condition.

    The KYN28A-24kV equips with the excellent VS1 series the centrally installed type HV AC vacuum circuit breaker or sealed vacuum circuit breaker. The advanced and reliable protection components are equipped in the secondary circuit of the switchgear, and the bus bar is used or treated by heat-shrinkable insulating material or epoxy coating, the electrode shape is optimized designed, and the structure of the cabinets are compact designed, and the layout of proposal can be flexible designed.

     

    Standards

    GB1984 HV AC circuit breaker

    GB-3906 3 ~ 35kV AC closed metal switchgear and control equipment

    GB/T11022 Common technical requirements of the HV switchgear and control equipment

    DL/T404 Technical requirement for common ordering of the indoor AC HV switchgear

    DL/T593 Technical guideline for common ordering of HV switchgear

    IEC62271-200 AC closed metal switchgear and control equipment, rated voltage ≥ 1kV or ≤ 52kV

     

    Model Details

     

    Metal-clad removable ac enclosed switchgear

    Technical Parameters

    Conditions of Use

    Ambient Temperature: Max. +40℃, Mini. -15℃, average temperature in 24 hours ≤ 35℃

    Relative Humidity: Average daily relative humidity ≤ 95%, average monthly relative humidity ≤ 90%,

    Water Vapor Pressure: Average daily≤ 2.2kPa, Average monthly≤ 1.8kPa,

    Sea Level: ≤ 1000M

    Seismic Intensity: ≤ VIII

    No risk of fire hazard, explosion, severe contamination, chemical corrosion and violent vibration.

    Special Conditions of Use:

    When the using conditions are not in accordance with GB/T11022, the special operation condition can be negotiated and the agreement can be reached between the supplier and the client.

    For preventing the condensation, the closed type switch and the heater for the device could be used. The heater need be opened even if the system is under normal operating.

     

    Ordering Information

    The customer should provide supplier with the following data concerning the products:

    A. The complete primary wiring diagram of the engineering system.

    B. The secondary wiring diagrams of the HV switchgear.

    C. The layout of the cabinets (If there is bridge for bus bar, the installation sizes and layout should be provided).

    D. The layout of the small bus bar at the top of the cabinet.

    E. The quantity and model of the spare parts

    F. While ordering, the special operating conditions should be provided in written forms.

    G. The color code of the switchgear shell and panel.

     

     

     

    • Serial Number

      Items

      Unit

      Parameter

      1

      Rated Voltage

      kV

      24

      2

      Rated Frequency

      Hz

      50/60

      3

      Rated Insulation Level

      1 Minute Working Frequency Withstand Voltage

      kV

      Separate phase

      65

      Separate

      79

      Withstand Voltage of Thunder Impact

      Relatively

      125

      Fracture

      145

      Working Frequency Withstand Voltage of Auxiliary Control Circuit

      V

      2000

      4

      Rated Current

      A

      630,1250,1600,
      2000,2500,3150

      5

      Rated Current Rated Short-Circuit Breaking Current  *

      kA

      25,31.5

      6

      Rated Short-Circuit Closing Current (peak)

      kA

      60.80

      7

      Rated Short-Term Withstand Current (4S)

      kA

      25.31.5

      8

      Rated Peak Withstand Current

      kA

      63.80

      9

      Rated Voltage of Auxiliary Control Circuit

      V

      AC/DC 110/220

      10

      Protection Level

       

      IP4X
      (door opened :IP2X)

      11

      Dimensions
      (W X D X H)

      mm

      800*1810*2380
      1000*1810*2380

      12

      Weight

      Kg

      840~1440

       

Add: No.6 Kaiyuan Rd, Hai’an city, Jiangsu Province, China, 226600

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