Sf6 Vacuum Circuit Breaker

SF6 Vacuum circuit breaker, with its unique sulfur hexafluoride (SF6) gas as the core insulation and arc extinguishing medium, by virtue of SF6 gas excellent insulation efficiency and extraordinary arc extinguishing ability, occupies a pivotal position in the high voltage power system, to achieve a wide and in-depth application. Its exquisite design and excellent performance make it an indispensable key equipment in the field of modern power transmission and distribution.

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Product Description

Zi Kai Sf6 Vacuum Circuit Breaker product parameters:

number	item			unit	data
01	Rated voltage			kV	40.5
02	Rated insulation level	1min power frequency withstand voltage	Dry test		95
		1min power frequency withstand voltage	Wet test		80
		Lightning impulse withstand voltage			185
03	Rated current			A	1250;1600;2000
04	Rated short-circuit breaking current			KA	20;25;31.5
05	Rated operating sequence				Separate -0.3S- close to separate -180S- close to separate
06	Rated short circuit breaking current number			time	12
07	Rated short circuit closing current (peak)			kA
08	Rated peak withstand current			kA	50;63;80
09	Rated short-time withstand current			kA	20;25;31.5
10	Rated short circuit duration			S	4
11	Contact opening distance			mm	22±2
12	Contact overtravel			mm	4±1
13	Average opening speed			m/s	1.5±0.2
14	Average closing speed			m/s	0.7±0.2
15	Contact closing bounce time			ms	≤2
16	Synchronous time difference of three phase station (branch) gate			ms	≤2
17	Closing time			ms	≤150
18	Opening time			ms	≤60
19	Mechanical life				10000
20	Rated operating voltage Rated voltage of the auxiliary circuit			V	DC110/220、AC110/220
21	Dc resistance per phase loop (without transformer)			μΩ	≤100
22	weight			kg	800

Zi Kai Sf6 Vacuum Circuit Breaker Outline and mounting dimensions

Zi Kai Sf6 Vacuum Circuit Breaker Application

SF6 circuit breakers are widely used in high-voltage, ultra-high voltage and UHV power grids, especially in the field of power transmission and distribution where high reliability and stability are required. It is often used in high-voltage switchgear, transformers, generator sets, isolation switches and other equipment, as well as urban rail crossings and industrial automation equipment and other scenarios.

Zi Kai Sf6 Vacuum Circuit Breaker using condition

1.The ambient temperature should be kept within the range where SF6 gas will not liquefy.

2.The pressure of SF6 gas must be maintained within the specified range to ensure its insulation and arc extinguishing performance.

3.The device must be installed in a dry and well-ventilated environment to prevent moisture and impurities from adversely affecting SF6 gas and circuit breakers.

Zi Kai Sf6 Vacuum Circuit Breaker Details

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Note

1.Check the density and moisture content of SF6 gas regularly to ensure that it is within the normal range.

2.When gas leakage is found. it should be handled in time and supplemented with SF6 gas.

3.When performing maintenance or overhaul. strictly follow the safety operation rules and wear protective equipment

FAQ

1、Are you a trading company or a direct manufacturer?

We are a professional factory with 10 years of industry experience, specializing in the manufacture of high and low voltage switchgear, substations, transformers, cable distribution boxes and all kinds of electrical equipment, including but not limited to vacuum circuit breakers, load break switches, etc. Our factory with its excellent product quality and professional service, won the State Grid Corporation of China excellent supplier title.

2、 How can we guarantee quality?

Always a pre-production sample before mass production;
Always final Inspection before shipment;

3、What is your payment terms ?

30%T/T in adcance,70% before shipment . West union , L/C are also accept

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Contact Info

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Address

Sulu Avenue, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, China
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Tel

+86-15167776274
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E-mail

zikai@cnzikai.com

If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.