OEM China Off Load Changeover Switch - ZW7/CT(built-out) 35kV Outdoor Transformer Substation Vacuum Circuit Breaker – Aiso

During the past few years, our business absorbed and digested state-of-the-art technologies the two at home and abroad. Meanwhile, our firm staffs a group of experts devoted to your development of Mcb Circuit Breaker, Power Isolation Transformer, Surge Arresters On Transformers, We are keeping chasing WIN-WIN situation with our clients. We warmly welcome clients from all over the world coming over for a visit and establishing long term relationship.

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OEM China Off Load Changeover Switch - ZW7/CT(built-out) 35kV Outdoor Transformer Substation Vacuum Circuit Breaker – Aiso Detail:

Product Structure

ZW7A-40.5 Series outdoor high voltage vacuum circuit breakers main switchgear of AC50Hz, 40.5KV, which is assembled with spring operating or electromagnetic operating mechanism. It can be operated to switch on/off by remote control, and it is also charged and switched on/off by hand. The design function of breaker complies with the requirements of GB1984-89 and IEC56 “AC high voltage circuit breaker”, it is mainly used in outdoor 35KV distribution system to control and protect, also for normal operating and protecting short circuit of urban,rural network, or industrial enterprises. Its overall structure is supported by porcelain insulator, vacuum interrupter built in upper insulator, downside insulator used for supporting. The breaker applies

frequent operating places with the advantages of good sealing anti-aging, high-voltage withstand, non flame, non explosion long working life, easy installation and maintenance and etc.

 

Product feature

For frequent operation place

Good sealing, anti-aging, high pressure, no burning, no explosion, long life, convenient installation and maintenance features

 

Ambient condition

1, Altitude:not exceed 1000m

2, Ambient temperature:not higher than +40°C,not less than – 15°C

3,Relative humidity:daily average relative humidity:≤95%;monthly average relative humidity :≤95%;monthly avergae relative humidity ≤90%, daily avergae saturated vapor pressure ≤2.2KPa;monthly average value: ≤1.8KPa.

4, Earthquake intensity: ≤8 degree

5, The installation should be free from fire,explosion,severe vibration,chemical corrosion and serious pollution.

 

Technical parameters

Item	Description			Data
1	Rated voltage(KV)			33/35
2	Rated insulation level(KV)	1min withstand voltage	Dry	95
			Wet	80
		Lightning impulse withstand voltage(peak)		185
3	Rated current(A)			630
4	Rated short circuit breaking current(KA)			20/25/31.5/40
5	Rated operating sequence			OC-0.3s-CO-180S-CO
6	Rated short-circuit opening times			20
7	Rated short circuit closing current(peak)(KA)			50/63/80
8	Rated peak withstand current(KA)
9	Rated short-circuit withstand current(KA)			20/25/31.5
10	Rated duration of short-circuit(S)			4
11	Aveage breake speed(m/s)			1.5±0.2
12	Average closing speed(m/s)			0.7±0.2
13	The jump time of contact close breake(ms)			≤2
14	Time difference of closing(breaking) three phase at the same time(ms)			≤2
15	Closing time(ms)			≤150
16	Opening time(ms)			≤60
17	Mechanical life			10000
18	Rated operating voltage and aux circuit rated voltage(V)			DC110/220
				AC110/220
19	DC resistance of circuit for every phase(S)			≤100
20	Contacts limit erosion(A)			3
21	Weight(KG)			1100

Outline dimension

 

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Product detail pictures:

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Related Product Guide:

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"Sincerity, Innovation, Rigorousness, and Efficiency" may be the persistent conception of our organization to the long-term to build together with shoppers for mutual reciprocity and mutual advantage for OEM China Off Load Changeover Switch - ZW7/CT(built-out) 35kV Outdoor Transformer Substation Vacuum Circuit Breaker – Aiso, The product will supply to all over the world, such as: Mauritania, Bolivia, Hungary, We aim to build a famous brand which can influence a certain group of people and light up the whole world. We want our staff to realize self-reliance, then achieve financial freedom, lastly obtain time and spiritual freedom. We do not focus on how much fortune we can make, instead we aim to obtain high reputation and be recognized for our goods. As a result, our happiness comes from our clients satisfaction rather than how much money we earn. Ours team will do best for you personally always.