Air-insulated medium-voltage switchgear 8BT1

8BT1

Compact design and simple construction

Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 year. 8BT1 air-insulated medium-voltage switchgear can be used in transformer and switching substations.

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8BT1 catalog

Your benefits at a glance

Saves lives

  • All switching operations including emergencymanual operations with high-voltage door closed
  • Interlocking between high-voltage door and switching devices
  • Rack-in, rack-out operations of the circuit-breaker truck with high-voltage door closed
  • Metallic, earthed shutters and partitions, partition class: PM for circuit-breaker panels
  • Internal arc classification up to 25 kA, 1 s, according to IEC 62 271-200, Annex A
  • Use of vacuum circuit-breakers

Increases productivity

  • Use of metallic, earthed shutters and partitions ensures highest loss of service continuity category of the switchgear (LSC2A according to IEC 62 271-200) during maintenance
  • Use of maintenance-free vacuum circuit-breakers
  • Cable testing without isolating the busbar

Saves money

  • Use of maintenance-free vacuum circuit-breakers
  • Compact design requires minimum space
Ensures peace of mind

Ensures peace of mind

  • Factory-assembled, type-tested switchgear according to IEC 62 271-200
  • Type testing of the circuit-breaker and make-proof earthing switch inside the panel
  • Use of standard, worldwide available components
  • Use of maintenance-free vacuum circuit-breakers
  • Qualitymanagement according to DIN EN ISO 9001
  • Design based on global best practice sharing and experience, compact design with high flexibility
Preserves the environment

Preserves the environment

  • As insulating medium, air is absolutely neutral to the environment
  • Service life > 35 years optimizes the energy balance additionally
  • The materials used are fully recyclable without special knowledge
Product information

Air-insulated switchgear for primary distribution

Switchgear type 8BT1 is a factory-assembled, type-tested switchgear for indoor installation according to IEC 62 271-200 and VDE 0671-200. It's mainly used for power distribution. Eco-friendly thanks to air as insulating medium and the use of vacuum technology!
Rated voltage
kV
up to
7.2
12
24
Rated frequency
Hz
 
50
50
50
Rated short-duration power-frequency withstand voltage
kV
up to
20
50
28
Rated lightning impulse withstand voltage
kV
up to
60
125
75
Rated short-time withstand current, 3s
kA
up to
25
25
25
Rated peak withstand current 50 Hz
kA
up to
63
63
63
Rated short-circuit breaking current
kA
up to
25
25
25
Rated short-circuit making current 50 Hz / 60 Hz
kA
up to
63
63
63
Rated normal current of busbar
A
up to
2000
2000
2000
Rated normal current of feeders
- with circuit-breaker
- with switch-disconnector
- with switch-disconnector with fuses
A
up to

2000
630
200

2000
630
200

2000
630
200
Degree of protection - enclosure
Degree of protection - between compartment
 
 
IP 4X
IP 2X
IP 4X
IP 2X
IP 4X
IP 2X
Dimension
- Width
- Depth
- Height

mm
mm
mm
 

600/800
1200
2050

600/800
1200
2050

800
1200
2050
Classification according to IEC 62271-200
 
Partition class
PM (partition of metal)
Loss of service continuity category panels
LSC2A
Accessibility of compartments (enclosure):
- Busbar compartment
- Switching device compartment
- Connection compartment, front connection

tool-based
interlock-controlled
interlock-controlled
Internal arc classification
 
- Wall standing arrangement up to 24 kV
 
- Free standing arrangement up to 24 kV 
IAC A FLR up to 25 kA, 1s

IAC A FLR up to 25 kA, 1s
Downloads

Downloads

Here you find all the information and documents on the air-insulated medium-voltage switchgear 8BT1:

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