VIB/CX-12T 12kv Indoor High Voltage Vacuum Circuit Breaker with Lateral Operating Mechanism

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: MCCB
• Model NO.: VIB/CX-12T
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: VDE, ISO9001-2000, CE
• Transport Package: Non-Solid Wooden Case
• Specification: IEC: M2-E2-C2
• Trademark: Longxiang electrical
• Origin: Baoji, Shaanxi China
• HS Code: 85352100
• Production Capacity: 17600sets/Year

Product Description

VIB/CX-12T Series of Indoor High Voltage Vacuum Circuit Breaker
With Lateral Operating Mechanism

General Description
VIB/CX-12/T series indoor high voltage vacuum circuit breaker (hereinafter referred as VCB) is used as component for 12kV rated voltage, AC 50Hz indoor switchgear equipment. The product is manufactured in accordance with standards of GB1984-2014 HV AC Vacuum Circuit Breaker, JB3855-1996 3.6~40.5kV Indoor AC High Voltage Vacuum Circuit Breaker, DL403-2000 Ordering Technical Conditions of HV Vacuum Circuit Breaker for rated voltage 12~40.5kV and IEC 62271-100/2003 HV AC Vacuum Circuit Breaker etc requirements. The VCB is applied as protection and control unit of power design in electric power grid and for industrial and mining enterprises, also suitable for conditions which require various types of load switching and frequent operations and repeated breaking short circuit current.

Applying ambient conditions and matched switch panel width

1. Ambient temperature: max temperature: +40ºC, and the average temperature within 24hours should be no more than 35ºC, min temperature: -15ºC.
2. Relative humidity: the average humidity of a day should be no more than 95%, the average humidity of a month should be no more than 90%.
3. Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa, the average pressure of a month should be no more than 1.8kPa.
4. The height above sea level: ≤1000m, Max. 4500m (need technical review).
5. Earthquake intensity: not exceed 8 degrees.
6. It should be installed in the places without dust, smoke, corrosive or flammable gas, vapor and salt spray etc. pollutions.
7. Matched switch panel width: 650mm

Structural Features:

1. The VCB adopts modular type operating mechanism, the overall distribution is reasonable, artistic and simple.
2. The electrical elements are using modular type design, so it is easy for installing and replacement for damaged ones.
3. The primary circuit of the VCB could adopts both embedded poles and common insulated cylinder.
4. Long endurance, the VCB meets the mechanical endurance level M2 and electrical endurance level E2.
5. The VCB is with good interrupting performance, and could perfectly switch the inductive or capacitive load.

Main technical specification

S.N	Name	Unit	Data
1	Rated voltage	kV	12
2	Rated power frequency withstand voltage 1min	kV	42
3	Rated lightning impulse withstand voltage	kV	75
4	Rated frequency	Hz	50
5	Rated current	A	630	1250
6	Rated short circuit breaking current	kA	20	20
			25	25
			31.5	31.5
7	Rated peak withstand current	kA	50	50
			63	63
			80	80
8	Conductive circuit resistance of each phase	μΩ	<=50	<=45

Mechanical characteristics parameter

S.N	Name	Unit	Data
1	Clearance between open contacts	mm	9±1
2	Over travel of contacts	mm	3.5±0.5
3	Contact bouncing duration at closing opening	ms	≤2
4	Out of Simultaneity of CO operation of three poles	ms	≤2
5	Opening time	ms	20~50
6	Closing time	ms	30~70
7	Average opening speed	m/s	0.9~1.3
8	Average closing speed	m/s	0.4~0.8

Welcome for enquiry and factory visit!