Products and Services >Medium Voltage Products >Indoor Switchgear >Primary Distribution >Metal-Clad Vacuum Switchgear >VMC18-40, 17.5 kV

VMC18-40, 17.5 kV

700X1500X2000VECTOR12M32web
The VMC18-40 is a metal-clad vacuum switchgear using the 40kA VECTOR18-S40 VCB. Essentially of the same design as the VMC12-40, but with bigger dimensions for higher insulation levels, the VMC18-40 is designed for use as primary distribution switchgear.
Parameters

Unit

VMC18-40

Rated Voltage

kV

18

Maximum service voltage

kV

18

Withstand Voltage to earth/between phases

kV

38

Withstand Voltage across isolating gap

kV

45

Impulse withstand voltage to earth/between phases

kV

95

Impulse withstand voltage cross isolating gap

kV

110

Rated Current

A

1600/2000/2500

Breaking capacity

kA

40

Breaking capacity for no-load transformers and cables

A

25

Short-time withstand current (R.M.S)

kA/sec

40/4

Peak withstand current

kA

80

Making Capacity

kA

80

Mechanical Endurance

cycles

20000

Electrical Endurance

cycles

10000
Standard operating duty

O-180s-CO-180s-CO
Rapid reclosing duty

O-0.3sec-CO-0.3sec-CO

Minimum panel width

mm

700

Minimum panel height

mm

2100

Minimum panel depth

mm

1600
The following represent only some of the schemes available for the VMC-S40/50 series Metal-clad Switchgear. For the full range of options please refer to the VMC/Vector product catalogue.
Scheme nos: VMC-1 ( Withdrawable VCB, 3xCT)

Rated Voltage

Minimum Dimensions (WXDXH) mm

12 kV

750X1600X2100

17.5 kV

850X1700X2200

24 kV

950X1800X2300

Main switch apparatus: Standard features:

Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-2 ( Withdrawable VCB, 3xCT, Earth Switch)

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Earth Switch
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive for
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-3 ( Withdrawable VCB, 3xCT, Voltage Indicators )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-4 ( Withdrawable VCB, 3xCT,Surge Arrestors )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-5 ( Withdrawable VCB, 3xCT, Surge Arrestors,Voltage Indicators )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-6 ( Withdrawable VCB, 3xCT, Earth Switch,Voltage Indicators )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Earth Switch
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-7 ( Withdrawable VCB, 3xCT, Earth Switch, Surge Arrestors )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Earth Switch
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.
    • Scheme nos: VMC-8 ( Withdrawable VCB, 3xCT, Earth Switch, Surge Arrestors, Voltage Indicators )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    750X1600X2100

    17.5 kV

    850X1700X2200

    24 kV

    950X1800X2300

    Main switch apparatus: Standard features:

    Vector-S12, Vector-S18, Vector-S24 from 40kA to 50kA Optional features:
  • 1600A~3200A VCB
  • 2~3xCTs
  • 2~3xAmmeters
  • Voltage Indicators
  • Surge Arrestors
  • Earth Switch
  • Protection relay
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • additional auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
  • Cable exit at base or bus-bar connection to adjacent panel.