Gcb 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: Circuit Breaker
• Model NO.: GCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Overcurrent Protection
• Certification: ISO9001-2000, CE
• Transport Package: Carton
• Specification: IEC, GB
• Trademark: Rockwill
• Origin: China
• HS Code: 8535210000
• Production Capacity: 1000PCS

Product Description

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 overvoltages.

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 2800 mm to 3700 mm.

 

The metal enclosure has IP 54(*) 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 metalising and painting process. The support structures are hot dip galvanised.

Main technical specifications:

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 50 Hz	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 [Hz]	50-60		50-60		50-60
Rated normal current (400C)	lr [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 (3 s)		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)	[0C]	-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.

 

ATTENTION:

1.The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
2.The delivery time: Usually it will take about 15-20 days.
3.The standard of package: Usually use strong plywood case for protection.
4.The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. In fact, those two have difference if normal work well. Only except the long life. Copper is better and also higher price.
5.The logo: If you have good quantity, it absolute no problem to do OEM.
6.Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
7.Warranty: in 12 month since BL date.

OUR SERVICE:

1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.


WHY CHOOSE ROCKWELL:

1. One-stop supplier globally.
2. More than 10 years professional experiences in electrical appliance industry. 
3.We offer professional online technology support for perfecting your electrical solution free.
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: 12 month
9. Whatever big or small order, we can provide you one-to-one service.  

CONTACT US:

Contact person: Mr. Chen Chengming
Tel:[phone]
Mobile:[phone]
 


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