Metalclad air insulated switchgear

Up to 36 kV

2000 A

25 kA

Catalogue

Instructions Manual

 

Qbn7 is an indoor Metalclad air insulated Switchgear with draw-out SF6 circuit breaker and exclusively fontal operated.

 

 

GENERAL CHARACTERISTICS

  • High reliability

  • Active and passive protection systems

  • Modular and compact conception

  • Extensible

  • Reduced installation area

  • Easy to install

  • Easy to operate

  • Exclusively frontal operated

  • Increased electrical and mechanical life

  • Several equipment options are available

TECHNICAL DATA

 

ELECTRICAL DATA
Rated voltage 36 kV
Insulation level:

  - lighting impulse

  - power frequency

  

170 kV

50 kV - 1 min
Frequency 50 Hz
Busbar rated current 630 to 2000 A
Tee-off rated current 630 to 2000 A
Short circuit making capacity 40 - 63 kA
Rated short-time withstand current 16 - 25 kA (1 or 3 s)
MECHANICAL CHARACTERISTICS
Protection (IEC 529) IP3 (IP4 under request)
Standard Colors RAL 7032
NORMAL SERVICE CONDITIONS
Máx. / Min. ambient temperature -5º C / 40º C
Maximum 24 h average temperature 35º C
Maximum relative humidity 95%
Maximum altitude 1000 m
DIMENSIONS
Height 2250 mm
Depth 2570 mm
Width:

  - Tee-off current up to 1250 A

  - Tee-off current up to 2000 A

  

1200 mm

1300 mm

APPLICABLE STANDARDS

According to IEC standards

(BS standards also applicable)

 

AVAILABLE FUNCTIONS

  • Incoming/Outgoing: (CH/S)

  • Busbar sectioning: (SECC)

  • Busbar riser: (SUB)

  • Auxiliary Services Transformers protection: (TSA)

INCOMING-OUTGOING

 

BUSBAR SECTIONING

 

BUSBAR RAISER

TRANSFORMER PROTECTION

 

 

Other functions can be available, under request and client specification.

 

COMPOSITION

 

Incoming-Outgoing standard panel

 

  1. Busbar compartment

  2. Circuit-breaker compartment

  3. Cable compartment

  4. Low voltage compartment

 

  1. Withdrawable DIFLU circuit breaker

  2. Busbar insulator support

  3. Cast resin bushing

  4. Current transformers

  5. Cable earth switch

  6. Cables

  7. Internal arc protection system

  8. Metallic safety shutters

  9. Busbar

  10. Tee-off's

  11. Voltage capacitor dividers

  12. Eath switch operating mechanisms

  13. Low voltage cables tray
 

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