Wortai High Quality Maintenance-Free Vacuum Circuit Breakers

• Name: High Voltage Boundary Vacuum Circuit Breakers
• Voltage Class: 12
• Current: 630A 1250A
• Color: Customer Request
• Transport Package: Carton + Pallet
• Specification: Pallet dimension 110x110x180
• Model NO.: WTBV
• Trademark: WORTAI or OEM
• Origin: Wenzhou, China
• HS Code: 8547909000
• Production Capacity: 30000PCS/Month

Product Description

 

Products Description

Wortai ZW20-12 outdoor demarcation vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an outdoor power distribution device with a rated voltage of 12kV and a three-phase AC 50Hz. It uses vacuum arc extinguishing and SF6 gas as the insulating medium. The box adopts the gas sealing, explosion-proof and insulating structure technology imported from Toshiba VSP5. The inlet and outlet conduits have also been improved in sealing performance, and the overall sealing performance is excellent. The internal filling of SF6 gas Does not leak and is not affected by the external environment. The spring operating mechanism has been miniaturized design and optimized for reliability and stability. It adopts a linear chain drive and a multi-stage tripping system, and its operational reliability and stability are significantly improved compared to traditional domestic mechanisms. The contact between the shaft and the sleeve of the main circuit adopts a retractable watch chain structure, which has low contact resistance and low temperature rise. Therefore, the ZW20-12 outdoor demarcation vacuum circuit breaker is a maintenance-free product and the best product among the pole-mounted circuit breakers.

 

Wortai ZW20-12 outdoor boundary circuit breaker complies with the national standard GB1984 "High Voltage AC Circuit Breaker" and GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards" and related IEC standards. With over-current protection, grounding protection, reclosing function. Connected to the controller through the aerial plug: the fault automatically removes the single-phase ground fault, automatically switches the phase-to-phase short-circuit fault, quickly locates the fault point, event records and other automation functions. Excellent electrical and mechanical properties make ZW20-12 outdoor boundary circuit breakers widely used. It is mainly used for breaking and closing the load current and short-circuit current of 10kV power system. It is suitable for protection and control in substations and industrial and mining enterprise switch systems, and is more suitable for the occasions of alternative operation of the power grid. This product is matched with the controller. As the first circuit breaker between the power company and the user, it has comprehensive protection performance and excellent recloser function, which can meet the requirements of the automation system.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Product Paramenters

 

Use environmental conditions  >Environmental temperature: not higher than +40ºC, not lower than -40ºC;  >The relative humidity of the air does not exceed 95% per day and 90% per month; >The altitude does not exceed 2000 meters; >Wind pressure does not exceed 700Pa (equivalent to a wind speed of 34m/s); >Earthquake intensity does not exceed 8;  >There is no fire, explosion, serious pollution, chemical corrosion and vibration;  >If customers have other special requirements, they can be put forward at the time of booking, and our company can give the greatest satisfaction. >Excellent insulation performance of incoming and outgoing wires: Silicone rubber sleeves are used to make the insulation distance between the terminals sufficient and excellent external insulation performance; Safety in use: An explosion-proof device is installed on the top of the box. Even if an accidental internal failure occurs, no high-temperature gas or objects exceeding 10mm will leak and escape;	>Features  >Flexible and convenient operation: This product can be operated with electric energy storage and electric opening and closing, or manual energy storage and manual opening and closing functions, and can be operated by remote control at a short distance;  >Excellent breaking performance: breaking rated short-circuit current up to 30 times;  >Low operating power and high reliability: the newly designed miniaturized electric spring mechanism, the number of parts and the rated power of the energy storage motor (about 40W) are reduced to the lowest level;  >Flexible installation: it can be installed on a column or seated;  >Maintenance-free features: the main circuit of the circuit breaker, the secondary components, and the operating mechanism are all sealed in SF6 gas (zero gauge pressure), not affected by the external environment, stable, reliable, and maintenance-free; reliable sealing performance: mature Sealing structure technology, reliable sealing performance;  > "Four remotes" function: It can be matched with the intelligent controller to realize the functions of remote control, remote measurement, remote signaling and remote adjustment.

No.	Item		Unit	Number of values
1	Rated voltage		kV	12
2	Rated current		A	630,1250
3	Rated frequency		Hz	50
4	Power frequency withstand voltage (1min)	Dry test ( white/fracture )	kV	45/48
		Wet again(on the ground outside the insulation)		34
5	Lightning impulse withstand current (peak)(white/fracture)		kV	75/85
6	Rated short-circuit breaking current		kA	20	25
7	Rated short-circuit current (peak)		kA	50	63
8	Rated peak withstand current		kA	50	63
9	4S short-time withstand current		kA	20	25
10	Rated operating cycle			Sub-0.3s-Hop sub-180s-Hop sub-
11	Rated short-circuit current breaking time		Times	30
12	Mechanical life		Times	10000
13	Secondary circuit 1min power frequency withstand voltage		kV	2
14	Contact opens the distance		mm	9±1
15	Contact ultra-travel		mm	3±1
16	Opening speed		m/s	1.2±0.2
17	Closing speed		m/s	0.6±0.2
18	Contact closing bounce time		ms	≤2
19	Cabinets and white center distance		mm	135±2
20	Box outside the white center distance		mm	260±2
21	Three-phase of opening and closing of		ms	≤2
22	Each phase conductive loop resistance		μΩ	≤200
23	SF6 gas rated pressure (gauge pressure)		MPa	0
24	Weight		Kg	140

 

Test and Inspection Equipments

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Why Choose WORTAI

* More than 20 years manufacturing experience in electric power industry
* Top quality products, ISO9001, ISO14001, KEMA, CNAS certificates
* Custom tailored products, OEM & ODM are welcome
* Challenging prices for giving customers the greatest benefits
* Fast response time, we promise to reply customer's email within 24 hours
* Attractive lead times, plenty of equipments and workers to ensure the delivery on time
* Top skilled technicians
* Flexibility

WORTAI have been sold to over 20 countries and regions, spread all over Asia, Africa, Middle & South America, Middle East and Europe, we also has done OEM service for some world famous brands.Choosing WORTAI means being one step ahead of the general development. We look forward to a closer relationship and mutually beneficial cooperation with any prospective customers in the near future. WORTAI will work with you shoulder-to-shoulder to satisfy your needs.With competitive price, good quality and best service, WORTAI will be your most wise choice. Together we're winners! Let's do it right