11 Kv Pole Mounted Vacuum Circuit Breaker

The 11 Kv Pole Mounted Vacuum Circuit Breaker is a key high-voltage protection device in power systems designed for outdoor environments. It uses the vacuum environment as an effective means of extinguishing the arc, and quickly performs the circuit opening and closing operation under the vacuum condition, so as to realize the precise control and safety protection of the circuit in the power system. This device has been widely used in the medium voltage (11kV) overhead power grid, with its excellent switching performance, can effectively cope with a variety of current conditions, including normal load current, overload current beyond the rated value and sudden short circuit current, to ensure the stable operation and safety of the power grid.

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Product Description

Zi Kai 11 Kv Pole Mounted Vacuum Circuit Breaker product parameters:

number	item				unit	data
1	Rated voltage				kV	12
2	Rated insulation level	1min power frequency withstand voltage		Dry test (to ground, electrode/fracture)	kV	42/48
				Wet test		34
		Lightning impulse withstand voltage (peak, electrode/fracture)				75/85
3	Rated current				A	630
4	Rated short-circuit breaking current				kA	20
5	Rated operating sequence					0~0.3-CO-180S-COS
6	Rated short circuit breaking current breaking times				time	30
7	Rated short circuit closing current (peak)				kA	50
8	Rated peak withstand current				kA
9	Rated short-time withstand current				kA	20
10	Rated short circuit duration				S	4
11	Switching time (the time from the control unit receiving the switching command to the three-phase contact separation)				s	0.040~0.060
12	Closing time (from the time the control unit receives the closing command to the time the three-phase contact closes)				s	0.070-0.120
13	Mechanical life				time	10000
14	Rated closing operating voltage				V	DC110、DC220
15	Rated opening operating voltage				V	DC110、DC220
16	Overcurrent protection		Current setting multiple		s	0.2~2.5
			Setting current tolerance			±10%
			Delay setting value			0~5
			Delay tolerance			±10%
			Current setting multiple			2.5~10
17	Quick-break protection		Setting current tolerance		S	±10%
			Delay setting value			0~0.5
			Delay tolerance			±10%
18	Ac charging of control unit		Rated value		A	5
	Input current		Fluctuation range		A	0.5~8

Zi Kai 11 Kv Pole Mounted Vacuum Circuit Breaker Outline and mounting dimensions

Zi Kai 11 Kv Pole Mounted Vacuum Circuit Breaker application

Power transmission and distribution: in power plants, substations and power transmission lines, as control and protection equipment to ensure the safe and stable operation of the grid.

Industrial applications: Provide reliable power protection for production equipment in industrial and mining enterprises, manufacturing industries and other occasions that require a large amount of power supply.

Urban power distribution network: as an important part of the urban power distribution network, it provides security for residents and commercial electricity.

Zi Kai 11 Kv Pole Mounted Vacuum Circuit Breaker Details

certificates

The circuit breaker complies with GB1984-2003 "High voltage AC Circuit Breaker", DL/T402-2007 "High voltage AC circuit breaker ordering Technical conditions" and DL/T403-2000 "12kV~40.5 High voltage vacuum circuit breaker ordering technical conditions" and other technical standards.

Environmental conditions of use

Ambient air temperature: upper limit +40℃, lower limit -40℃;

Altitude: no more than 3000mm;

Wind pressure: not more than 700Pa(equivalent to 34m/s wind speed);

Air pollution degree: not more than IV;

Ice thickness: no more than 10mm;

FAQ

1、What is your packaging standard?

Usually we use standard foam and carton packaging. If you have special requirements, we can also meet your requirements.

2、Why do you buy from us instead of other suppliers?

More than 10 years experience in design and manufacture of high voltage switchgear accessories. It is one of the largest star suppliers in the industry, and has won international and domestic praise, and has been shortlisted for the National Grid.

3、Can you provide free samples?

Yes, we can, but samples freight belongs to clients.

4、 How long is your delivery time?

Generally it is 5-10 days if the goods are in stock. or it is 15-30days if the goods are not in stock, it is according to quantity.

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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.