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----OPEN GROUP HOLDING LTD. is located in Liushi, Wenzhou, Zhejiang Province, China. It faces the 104 National Highway that run-through Zhemin Economic Zone, close to Qili Harbor and Wenzhou Airport on the south, close to the scenic spot Yandang Mountain on the north.

Quality assurance and customer satisfaction lead Open Group's top belief. OPEN GROUP HOLDING LTD. is one of the most professional manufacturers producing low-voltage and high-voltage electrical products, power equipment, cables & wires, etc. Through last 10 years' development,OPEN GROUP HOLDING LTD. has grown up as one of the biggest group companies in China, and the products range includes lightings, and lamp. We have over fifty member factories for the products above, and our products include 1,500 series and more than 15,000 industrial components.

We have precious experiences in exporting our products to the Southeast Asian, Australian, European and the American markets. Our products are well-known greatly due to high quality and reasonable price. After more than 10 years' promotion and service in the world, our products are enjoying a great share in the international market.

To present our customer more considerate service, OPEN GROUP HOLDING LTD. has modernized our production equipment, enhanced production technology and management mode. To form designing, producing, quality checking, selling as an organic whole, from quality control of the input of the raw materials and feedback of the after-sale service, etc., we have introduced TQM and other advanced producing methods to ensure the interest of our customers.

The 21st century is the era of the knowledge economy, full of the fierce competitions of technology and managing mode, but meanwhile, we can tell that there are also so many opportunities to get mutual benefits. Welcome domestic and international friends to cooperate cordially with OPEN GROUP HOLDING LTD. We believe with our best efforts, we can create the prosperity and development for both of our business.

 
 Smallclass HV fuse(20)
     Insulator
     Transducer
     Contact box Type
     Bushing Series
     Insulation tube Series
     Pull pole Series
 Smallclass cable wire(20)
  | Power Transmission & Distribution Equipment >>  Voltage vacuum circuit >> AC Outdoor HV Vacuum Breaker >> ZW32-12
 
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Mostly purpose

The zw32 outdoor HV vacuum breaker is a kind of outdoor power distribution equipments on rated voltage 12kv,15kv and three-phase ac50hz~60hz it is used for protecting and controlling distribution systems in transformer substations and industrial and mining enterprises it can also be used for frequently operation in country electric networks.and it can be used as a ring network power supply unit and terminal unit to distribute electric energy,control and protect electric equipments .combining with the disconnecting switch,it can be used as a section switch for seitching off/on load current ,over-load current and short circult current in power systems ,its vacuum explosion chamber uses patented sealing technique.ints external insulation uses asillcon rubber pipes with long life,high reliablity and weatherbility .it is convenient to transport and has a high cost performance ratio.using compact and high reliability spring operating mechanism ,the operating mechanism structure is ismple and has long life up to 20000 times. if using adcanced permanent magnetism mechanisms,it will have more reliable mechanical property,and it can install manual switch on/off mechanisms to switch on/off in the field in need of .matching with controllers,the breaker can be an automatic circult recloser to realize remote contralling,remote measurement,remote signaling and remote regulating .the product’s features:non buring and explosion hazard,non maintenance,smallsize,light weight(less than 100kg)long life(more than 10000times ),safe and reliable,simple operation and installation
Technic parameter
item
unit
parameter
rated voltage
KV
12
rated insulation level
1minpower frequency withstand voltage
dry
42
wet
34
lightning impulse withstand voltage(peak &#118alue)
75
rated current
A
630;400;200
rated short circult breaking current
KA
20;16;12.5
rated operating sequence
o-0.3s-co-180s-co
breaking current frequency under rated shout circlt
times
30
rated short current switching current (peak &#118alue)
ka
50
rated peak &#118alue withstand current
KA
rated short time withstand current
ka
20;16;12.5
rated short circult duration time
s
4

Externality & Build in Dimension

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