Vsg Vacuum Circuit Breaker for Kyn Switchgear

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: VSG
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed or Handcart Type
• Structure: Vcb
• Poles Number: 3
• Type: Indoor Vacuum Circuit Breaker
• Function: Isolation,Protection,Automatic Reclosing
• Certification: ISO9001-2000
• Rated Voltage: 12kv
• Rated Current: 630/1250/1600A
• Mechanical Life: 30000 Times
• Altitude: 1000m
• Transport Package: Wooden Box Packing
• Specification: Custom-made
• Trademark: ZGHQDL
• Origin: China
• HS Code: 8535210000
• Production Capacity: 10000/M

Product Description

VSG-12 Indoor High Voltage Vacuum Circuit Breaker (Modular) is our latest medium-voltage vacuumcircuit breaker product, which is

suitable for air-insulated indoor switching systems. The circuit breakeradopts the new solid-sealed pole technology with a modular

mechanism. At the same time, the circuitbreaker has perfect mechanical and electrical interlocking functions, and can be widely used

in energy.industry, construction, infrastructure and other fields.

The circuit breaker can perform frequent operation within the operating current range or open the shortcircuit current multiple times;

The mechanical life can be up to 30,000 times, and the number offullcapacity short-circuit current breaks can reach 50 times.

Circuit breakers are suitable for reclosing operations and offer high operational reliability and servicelife.

The circuit breaker can be installed in the switchgear ither as fixed or withdrawable or mounted on aframe.

Item		Unit	Parameter
Rated voltage		kV	12
Maximum operating voltage		Hz	12
Rated current		A	630	1250	1600
Ratedshort-circuit breakingcurrent		kA	20	25	31.5
Ratedshort-circuit closingcurrent		kA	50	63	80
Ratedshort-circuit closingcurrent		kA	50	63	80
4S rated short-circuit withstand current		kA	20	25	31.5
Rated insulation level	Power frequency withstand voltage (before and after rated breaking)	kV	42(Break48)
	Impact withstand voltage (before and afterrated breaking)		75(Break85)
Ratedsequenceofoperations			0-0.3s-C0-180s-CO

Item		Unit	Parameter
Mechanical life		times	30000
Rated number of short circuit breaking current breaks		times	50
Operating mechanism rated closing voltage(DC)		V	110,220
Operating mechanism rated opening voltage(DC)		V	110,220
Contact spacing		mm	11±1
Overtravel(contact spring compression length)		mm	3.5±0.5
Three-phase division,closing bounce time		ms	≤2
Contact closure bounce time		ms	≤2
Average opening speed		m/s	0.9±1.2
Average closing speed		m/s	0.4±0.8
Opening time	At the highest operating voltage	s	≤0.05
	At the lowest operating voltage		≤0.08
Closing time			0.1
The main loop resistance of each phase		Ω	60     50