XGN15-12/24(SF6/VCB) 12kV/24kV Box Type Fixed AC Metal Enclosed Switchgear

Short Description:

  •  XGN15-12/24 unit type air insulated ring main unit with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear.
  •  It characters in its simple structure, flexible operation, reliable interlocking and convenient installation etc.,.
  •  It can take self-produced FLS-12/24 load break switch; also according to user’s demand can be assembled with the internationally top-ranking brand LBS or VCB, Operational methods for the main switch inside ring main unit can be either manual or electric power driven.
  • It can meet the requirement of “Four Controls” when matched with FTU and RTU. In accordance with the national standard GB3906 and international standardIEC298, protection degreeIP2X

Product Detail

Product Tags

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Service conditions of XGN15-12/24 Switchgear

Normal service conditions of switchgear as follows:
Ambient temperature:
Maximum +40°C
Maximum 24 hour average +35°C
Minimum (according to minus 15 indoor classes) -25°C
Ambient humidity:
Daily average relative humidity less than 95%
Monthly average relative humidity less than 90%
Earthquake intensity less than 8 degree
Height above sea level less than 2000m

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Technical specification of XGN15-12/24 Switchgear

Rated voltage

kV

12

24

frequency

Hz

50/60

50/60

Lightning impulse withstand voltage

Phase to phase, phase to earth

kV

75

125

Fracture

kV

85

145

1min Power frequency withstand voltage

Phase to phase, phase to earth

kV

42

65

Fracture

kV

48

79

Rated frequency

Hz

50/60

50/60

Rated current

Main bus

A

630

630

Branch bus

A

630

630

Short time withstand current

Main circuit

kA

20/3S

20/3S

Earthing circuit

kA

20/2S

20/2S

Rated withstand current (peak)

kA

50

50

Rated transferring current

A

1700

870

Protection level

Ip2x

Load break switch mechanical life

Times

2000

3000

Earthing switch mechanical life

Times

2000

2000

Structural drawing of XGN15-12/24

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The cabinet is made up of four parts:

A   Bus-bar compartment    B     vacuum contactor compartment
C   Cable compartment    D     Low voltage compartment

Product Features

1. Switch disconnector
Switch unit (375/500 mm)
Switch unit (500 mm)
Switch unit-with/ without earthing switch -right or left outgoing line (375 mm)
Note: Extra components for example lightning arresters or lower earthing switch is optional.

  • Fuse-switch protection
    Fuse-switch-combination on unit (375/500 mm)
    Fuse-switch-combination unit (625 mm)
    Fuse-switch-combination unit -right or left outgoing line (375 mm)
    Note: Extra components for example lightning arresters or zero sequence CT is optional.
  • 3. Circuit-breaker protection
    Single-isolation circuit breaker unit(750 mm)
    Single-isolation circuit breaker unit  right or left outgoing line (750 mm)
    Note: 1. For HV SF6 circuit breaker also with many types can be selected. It Is according to client's requirement . ( SF1/Schneider etc.) Also Vacuum circuit breaker is also optional.(VD4/S-12/24 or VSC-12/24) 2. Other extra components for example Zero sequence CT is considering after communicated by our company.
  • 4. MV metering
    Voltage transformers for mains with earthed neutral system (375/500 mm) Current and/or voltage measurement unit (750 mm)
    Note: Extra components for example lightning arresters or zero sequence CT is optional.5. Casings (Bus bar Panel)
    Connection unit Right/left outgoing line(375 mm)
    Incoming cable-connection unit(375 mm)
    Incoming cable-connection unit(500 mm)
    Note: Other extra components is optional (Disconnecting switch panel, Voltage transformer panel, etc.)

2. Other auxiliary schemas
Disconnector unit (375/500 mm)
MV/LV transformer unit for auxiliaries(375 mm)
Bus-bar earthing compartment(375 mm)


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