Honle Zw20A Outdoor High Voltage AC Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: High-Speed Circuit Breaker
• Installation: Fixed
• Structure: MCB
• Poles Number: 3
• Model NO.: Zw20A
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: VDE, ISO9001-2000, CE
• Delivery: 25-30days
• Transport Package: Standard Export Package
• Trademark: HONLE
• Origin: Zhejiang, China
• Production Capacity: 3000PCS Per Month

Product Description

MCB Energy-Storage High-Speed Zw20A Outdoor High Voltage AC Vacuum Circuit Breaker

Overview
ZW20A outdoor high voltage AC vacuum circuit breaker is Honle vacuum circuit breaker series.
The new equipment in the ZW20A outdoor high voltage AC vacuum circuit breaker, with a rated voltage of 12 kV, is suitable for overhead lines and industrial and mining enterprises, power plants, substations and other places of this voltage level, under normal operating conditions and the technical parameters of the circuit breaker. It can meet the operation requirements of various protections of the system under the running state of the power grid, including extremely excellent operation performance under the occasions of closing and breaking short-circuit current. The product meets the requirements of automatic reclosing and has reliable operation
Features of high performance and long electrical service life.

 

Working Conditions
Ambient air temperature: -40°C- +40°C
Altitude: ≤2000m
Relative humidity: daily average value is not more than 95%; monthly average value is not more than 90%
Wind speed: ≤ 34m/s (equivalent to 700pa on the cylindrical surface)
Pollution level: ≤IV

Product performance standards
The manufacture of ZW7A outdoor high voltage AC vacuum circuit breaker complies with the following standards and specifications:
IEC 62271-100 High Voltage AC Circuit Breaker.
GB/T 11022-2011 High-voltage switchgear and control equipment standard common technology.
GB 1984 high voltage AC circuit breaker.
GB 311.1 Insulation coordination of high-voltage power transmission and transformation equipment.
 

The main technical parameters

Project		Unit	Reference
Rated voltage		KV	12
Rated insulation level	Lightning impulse withstand voltage	KV	75
	1min power frequency withstand voltage	KV	42
Rated frequency		HZ	50/60
Rated current		A	630/1250
Rated short-circuit breaking current		KA	16/20/25
Rated short-circuit making current (peak value)		KA	40/50/63
Rated short-time withstand current		KA	16/20/25
Rated peak withstand current		KA	40/50/63
Rated short-circuit duration		s	4
Breaking times of rated short-circuit current		Times	30
Mechanical life			M2 Class
weight		kg	145

Mechanical characteristic parameters

Project	Unit	Reference
Contact opening distance	mm	9±21
Contact overtravel	mm	3±1
Average closing speed	m/s	0.6±0.2
Average opening speed	m/s	1.2±0.2
Bounce time of contact closing	ms	≤2
Different timing of contact closing and opening	ms	≤2
Loop resistance of each phase	μ Ω	Switch ≤200 Isolation ≤50
Dynamic and static contact allowable wear cumulative thickness	mm	3

Operating mechanism
The spring operating mechanism of the circuit breaker stores energy through manual operation, no need. Any external power supply is required, which is convenient and reliable. After the energy storage is in place, it can be operated by closing and opening
The handle is used for closing operation. When in the closing position, it can be accessed directly through the closing and opening handles. The opening operation is performed, and no energy storage is required for each opening operation.