Vacuum Circuit Breaker 11kv

NegotiableUpdate on October 06

Model

Nature of the Manufacturer: Other

Product Category: Vacuum Circuit Breaker

Place of Origin: City, Province

Online Consult Contact Information

Overview

ZW32 is an automatic current recloser with a rated voltage of 12kV, AC three-phase frequency of 50Hz. With installation of an intelligent controller, switch can realize power transmission and distribution automatically.

Product Details

Product description

ZW32 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control electric appliance due to special vacuum circuit breaker. Superiority, especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

Product data

NO	Item		Unit	Technical Parameters
1	Rated voltage		KV	12
2	Max. working voltage		KV	12
3	Rated current		A	630 1250	630 1250	630
4	Rated short-circuit breaking current		KA	20	25	31.5
5	Rated short circuit closing current		KA	50	63	80
6	Rated peak withstａnd current		KA	50	63	80
7	4S rated short circuit withstａnd current		KA	20	25	31.5
8	Rated insulation level	Power frequency withstａnd voltage (before and after rated breaking)	KV	42(Fracture:48)
		Impact withstａnd voltage (before and after rated breaking)		75(Fracture:84)
9	Rated operation sequence			0-0.3s-Co-180s-Co
10	Mechanical life		TIMES	10000
11	Rated short circuit current breaking times		TIMES	50
12	Operating mechanism rated closing voltage (DC)		V	110,220
13	Operating mechanism rated trip current (DC)		V	110,200
14	Contact opening distance		MM	11±1
15	Overtravel(contact spring compression length)			3.5±0.5
16	Contact closing bounce time		MS	≤2
17	Three-phase split and close bounce time		MS	≤2
18	Average opening speed		M/S	1.2±0.2
19	Average closing speed		M/S	0.6±0.2
20	Opening time	At the highest operating voltage	S	≤0.05
		At the lowest operating voltage		≤0.08
21	Closing time		S	0.1
22	Main loop resistance of each phase		μΩ	60	50
23	Dynamic and static contacts allow wear cumulative thickness		MM	3

FAQ:

Q1: How to pay sample and express charges?

A: For express charges, you can pay to our company account directly, for those customer who has express account, we will send the samples by freight collected. If customers need samples, we will charge the cost first, once they place orders, we will return a part cost to their account.

Q2: What is your terms of payment?

A: Usually, we accept T/T, for regular order, we prefer 50% in advance, 50% against the pictures of finished material before delivery.

Q3: How do you control the quality?

A: We have QC team comply with TQM, each step is in compliance to the standards, at the same time, and we will take photos and shoot video for you.

Q4: What about lead or shipping time?

A: The lead time depends on quantity you ordered, but generally within 2~5 weeks upon receipt of advance payment.

Q5: How long does it take for me to get the quotation?

A: For customized products, we will quote after you provide the requested product details within 48 hours because we need the time to calculate cost, but we will quote the soonest possible. For our standard product posted here we can quote in 24 hours.