• Outdoor Sf6 Gas Circuit Breaker
  • Outdoor Sf6 Gas Circuit Breaker
  • Outdoor Sf6 Gas Circuit Breaker
  • Outdoor Sf6 Gas Circuit Breaker

Outdoor Sf6 Gas Circuit Breaker

Breaking Capacity: High Voltage Circuit Breakers
Operation: Electric Type
Speed: Normal Type Circuit Breaker
Arc-extinguishing Medium: SF6
Installation: Fixed
Structure: Conventional Circuit Breaker
Customization:

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Basic Info.

Model NO.
GCB
Poles Number
3
Type
Circuit Breaker
Function
Overcurrent Protection
Certification
ISO9001-2000
Transport Package
Wooden Packing
Specification
IEC, GB
Trademark
Rockwill
Origin
Zhejiang, China
HS Code
85352100
Production Capacity
5000

Product Description

Outdoor SF6 gas circuit breaker

Summary


GCB medium voltage circuit breakers for outdoor installation use sulphur hexafluoride gas(SF6) to extinguish the electric arc and as the insulating medium.

Breaking in SF6 gas takes place without current chopping or generation of over voltages.

These characteristics guarantee a long electrical life for the circuit-breaker and limited dynamic, di-electric and thermal stresses on the installation.

The GSH type of stored energy and free release mechanical operating mechanism allows opening and closing operations through local and remote control.

The operating mechanism, the activating kinematics of the moving contacts and the anti-condensation heater are located inside a tight metal enclosure which also acts as the support for the poles.

The above-mentioned structure is supported by a frame made of telescopic metal sections which allow the height of the circuit-breaker terminal to be adapted from 2800mm to 3700mm.

The metal enclosure has IP54(*) degree of protection and is fitted with a tight door with an inspection window.

The circuit-breaker is compact and ensures a high level of sturdiness and excellent mechanical reliability.

The enclosure is made out of a steel plate with adequate surface protection by a special metalizing and painting process. The support structures are hot dip galvanized.

Main technical data

 
Circuit-breaker on column GCB-12/24 GCB-36 GCB-40
standards IEC 62271-100 · · ·
Rated voltage Ur(kV) 12/24 36 40.5
Rated insulation voltage Us(kV) 12/24 36 40.5
Withstand voltage at 50Hz Ud(1 min)( kV) 70(dry)/60(wet) 95(dry)/80(wet) 95(dry)/80(wet)
Impulse withstand voltage Up(kV) 125/150 200 200
Rated frequency Fr(kV) 50-60 50-60 50-60
Rated normal current(400C ) Ir(A) 1250 2500 1250 2500 1250 2500
Rated breaking capacity Isc(kA) 25 25 25 25 25 25
31.5 31.5 31.5 31.5 31.5 31.5
Rated short-time Ik(kA) 25 25 25 25 25 25
Withstand current(3s) 31.5 31.5 31.5 31.5 31.5 31.5
Making capacity Ip(kA) 63 63 63 63 63 63
80 80 80 80 80 80
Operation sequence (O-0,3s-CO-15s-CO) · · ·
Opening time (ms) 45+10 45+10 45+10
Arcing time (ms) 10-15 10-15 10-15
Total breaking time (ms) 55-60 55-60 55-60
Closing time (ms) 75+10 75+10 75+10
Overall dimensions On frame 3090-3840 3090-3840 3090-3840
H(mm)
L(mm) 900 900 900
P(mm) 686 686 686
Weight (kg) 900 900 900
SF6 gas absolute pressure Rated service value(kPa) 380 380 550
Operating temperature(1)   (ºC)   -25…+40   -25…+40   -25…+40  
  Tropicalisation   IEC:60068-2-30,721-2-1   ·   ·   ·  
  Electromagnetic compatibility   IEC:60694,61000-6-2,61000-6-4   ·   ·   ·  
  Solar radiation   (W/m2)   1000   1000   1000  
  Presence of pollution   IEC 815-table 1   Level III   Level III   Level III  
  Creepage distance   (cm/KV)   2.5   2.5   2.75  
  Ice coating   (mm)   10   10   10  
  Wind speed   (m/s)   34   34   34  
  Earthquake resistance   (g)   0.3   0.3   0.3  
  Static force on the terminals   Longitudinal(N)   750   750   750  
  Transversal(N)   500   500   500  
  Vertical(N)   750   750   750  
(1)for lower operating temperatures, please consult us.

Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
Outdoor Sf6 Gas Circuit Breaker
 

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Diamond Member Since 2013

Suppliers with verified business licenses

Manufacturer/Factory & Trading Company
Year of Establishment
2008-12-08
Management System Certification
ISO9001:2015, ISO14001:2015, ISO45001:2018 certificate