Products and Services >Medium Voltage Products >Indoor Switchgear >Secondary Distribution >Metal-Enclosed Switchgear (Switch and Fusegear) >LCA-A 12~24 kV(Air Switch)

LCA-A 12~24 kV(Air Switch)

The LCA-A is an AIS compactly designed to house the ALBS-12/24 load break switch. The LCA-A is an economical solution for secondary distribution systems. In combination with HRC fuses it is ideal for protecting transformers with ratings of up to 800 kVA within secondary substations. As it needs only minimum maintenance,  it is ideal for smaller substations with lower ratings. As it is compatible with other LCA switchgear and the IV2000, it is a flexible product that allows for cost savings and functional optimization.
LCA-A1
General features include :
  • Nominal current until 630A.
  • Max breaking capacity 31.5kA,
  • S.C withstand capability at (rms) 20 kA/2sec
Panel Dimensions :
  • 12kV: 450X800X1650 mm(WXDXH)
  • 17.5kV: 550X1000X1900 mm(WXDXH)
  • 24kV: 600X1100X2100 mm(WXDXH)
Parameters

Unit

12kV

LCA-A

17.5 kV

LCA-A

24kV

LCA-A

Rated Voltage

kV

12

17.5

24

Maximum service voltage

kV

12

17.5

24

Withstand Voltage to earth/between phases

kV

28

38

50

Withstand Voltage across isolating gap

kV

32

45

60

Impulse withstand voltage to earth/between phases

kV

75

95

125

Impulse withstand voltage cross isolating gap

kV

85

110

145

Rated Current

A

630

630

630

Breaking capacity for no-load transformers

A

16

16

16

Breaking capacity for no-load lines and cables

A

25

25

25

Short-time current (for AL or BL type without fuses)

kA

20/3sec

20/3sec

20/3sec

Making Capacity

kA

50

40

40

Prospective breaking capacity (with fuses)

kA

50

40

31.5

Transfomer protection ratings

kVA

800

700

630

Mechanical Endurance

cycles

4000

4000

4000

Electrical Endurance

cycles

2000

2000

2000

Minimum panel width

mm

400

500

600

Minimum panel height

mm

1650

1850

2000

Minimum panel depth

mm

800

900

1100
The following represent only some of the schemes available for the LCA-A. For the full range of options please refer to the LCA-A product catalogue.
Scheme nos: LCA--A3 ( Line-switch module )

Rated Voltage

Minimum Dimensions (WXDXH) mm

12 kV

400X700X1650

17.5 kV

550X1000X1900

24 kV

550X1100X2100

Main switch apparatus: Standard features:

ALBS-AL or ALBS-BL Optional features:
  • Main switch
  • Voltage indicators
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    		•
    Scheme nos: LCA--A4 ( Line-switch module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch
  • Voltage indicators
  • Surge arrestors
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A5 ( Line-switch module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A6 ( Line-switch module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • Surge arrestors
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A7 ( Line-switch module with CT)

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch
  • Voltage indicators
  • 1~3 X Current transformers
  • 1~3XAmmeters
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A8 ( Line-switch module with CT)

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    650X1150X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch
  • Voltage indicators
  • 1~3 X Current transformers
  • 1~3XAmmeters
  • Surge Arrestors
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A9 ( Line-switch module with CT )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • 1~3 X Current transformers
  • 1~3XAmmeters
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A10 ( Line-switch module with CT )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    550X1100X2100

    Main switch apparatus: Standard features:

    ALBS-AL or ALBS-BL Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • 1~3 X Current transformers
  • 1~3XAmmeters
  • Surge Arrestors
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip -only with the ALBS-BL version
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A11 ( Fuse-switch transformer protection module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    570X1100X2100

    Main switch apparatus: Standard features:

    ALBS-BF Optional features:
  • Main switch & earth switch
  • Fuse-clamps
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A12 ( Fuse-switch transformer protection module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    570X1100X2100

    Main switch apparatus: Standard features:

    ALBS-BF Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • Fuse-clamps
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A13 ( Fuse-switch transformer protection module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    400X700X1650

    17.5 kV

    550X1000X1900

    24 kV

    570X1100X2100

    Main switch apparatus: Standard features:

    ALBS-BF Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • Surge Arrestors
  • Fuse-clamps
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive
    • Scheme nos: LCA--A17 ( Fuse-switch transformer protection module )

    Rated Voltage

    Minimum Dimensions (WXDXH) mm

    12 kV

    550X950X1550

    17.5 kV

    580X1000X1700

    Main switch apparatus: Standard features:

    ALBS-BF Optional features:
  • Main switch & earth switch
  • Voltage indicators
  • Fuse-clamps
  • Safety inter-locks
  • cable mounting rack
  • Observation window
  • operating handle
  • Door locks
    		•
  • Shunt trip
  • auxilliary contacts
  • interlock with adjacent switch
  • key interlocks
  • internal illumination
  • heater
  • motor and gear drive