Air-insulated medium-voltage switchgear 8BK80

Robust and reliable design

!!!!   Text Text Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 years. The air-insulated medium-voltage switchgear NXAIR is the result of many years of experience. The NXAIR family has been launched in 1998, and individually adapted to the specific market requirements of the different industries and power supply companies.   Your benefit  Saves lives Increases productivity Saves money Preserves the environment Ensures peace of mind

Product information

Air-insulated switchgear for primary distribution

Circuit-breaker switchgear type 8BK80 is type-tested, metal-enclosed and metal-clad switchgear for indoor installation according to IEC 62271-200   Typical uses The 8BK80 circuit-breaker switchgear is used in transformer and switching substations, mainly at the primary distribution level, e.g.: Application: Industry • Power stations • Cement industry • Iron and steel works • Rolling mills • Mining industry • Textile, paper and food industries • Chemical industry • Petroleum industry • Pipeline installations • Electrochemical plants • Diesel power plants • Emergency power supply installations • Traction power supplies • Airports • Wind parks

Typical uses

The 8BT2 circuit-breaker switchgear is used in transformer and switching substations, mainly at the primary distribution level, e.g.:

Application: Industry

• Power stations

• Cement industry

• Iron and steel works

• Rolling mills

• Mining industry

• Textile, paper and food industries

• Chemical industry

• Petroleum industry

• Pipeline installations

• Electrochemical plants

• Diesel power plants

• Emergency power supply installations

• Traction power supplies

• Airports

• Wind parks

Technical Data

Rated voltage
kV
up to
36
Rated frequency
Hz
 
50
Rated short-duration power-frequency withstand voltage
kV
up to
70
Rated lightning impulse withstand voltage
kV
up to
170
Rated short-time withstand current, 3s
kA
up to
26.3
31.5
Rated peak withstand current 50 Hz, 60 Hz
kA
up to
65.75
78.75
Rated short-circuit breaking current
kA
up to
26.3
31.5
Rated short-circuit making current
kA
up to
65.75
78.75
Rated normal current of busbar 1)
A
up to
3150
Rated normal current of feeders 1)
A
up to
2500
Degree of protection - Enclosure
Degree of protection - Compartments
 
 
IP4X
IP2X
Dimension
- Width:
- Depth: 
  Free-standing, IAC A FLR panel for 26.3 kA, 0.1 s
  Free-standing, IAC A FLR panel for 26.3 kA, 1s and
  31.5 kA, 0.1 s and 31.5 kA, 1 s
- Height:
  Panel height for IAC 0.1 s
  Panel height for IAC 1.0 s ( with baffel)

mm

mm
mm


mm
mm
 

1000

2320
2620


2550
3300

1) Higher ratings are possible on request

Classification according to IEC 62271-200
 
Partition class
PM (partition of metal)
Loss of service continuity category panels
LSC2B
Accessibility of compartments ( enclosure):
- Busbar compartment
- Switching device compartment
- Cable compartment

tool-based
interlock-controlled
interlock-controlled and tool-based
Internal arc classification !!!!!
 
- Wall standing arrangement
  Distance between the indicators 300 mm, i.e. installation in rooms with access for authorized personnel only, closed electrical service location 

- Free-standing arrangement
  Installation in rooms with access for authorized personnel only, closed electrical service location 

IAC A FL up to 31.5 kA, 1s


IAC A FLR up to 31.5 kA, 1s
 
Downloads

Downloads

Here you will find important information and documents concerning air-insulated medium-voltage switchgear 8BT2:
References

8BK80 success stories

Customer-oriented flexibility, high personal safety and low operation and maintenance costs – high-performance NXAIR offers all the advantages of an all-round carefree package for power distribution. Explore some of our success stories.

Contact

Get in contact with our Customer Service

You can contact us 24/7. We are looking forward for your call or online request. Phone +49 180 524 70 00