ZW32 12 / 630A outdoor vacuum circuit breaker, Vacuum circuit breaker, Auto Recloser

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Vacuum circuit breaker

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ZW32 12 / 630A outdoor vacuum circuit breaker

ZW-12 series of outdoor high-voltage vacuum circuit breaker (hereinafter referred to as "circuit breaker") for AC 50Hz, rated voltage 12kV three-phase power

system, as the sub-load current, overload

current and short circuit current. The circuit breaker can be configured to coincide with the controller to identify the current characteristics and to achieve multiple

automatic reclosing or permanent fault

isolation; own PT as a power supply, a voltage and current signal output and control of the intelligent circuit breaker; by the electronic PT power supply And can

complete the over-current delay,

surge delay, short-circuit quick-break three-band composite protection.

◆ Use of environmental conditions
1. Ambient air temperature: upper limit + 40 ℃, lower limit -30 ℃.
2. Altitude of not more than 3000M; (if the increase in altitude can be a corresponding increase in the strength of insulation or installation of equipment)
3. Wind pressure does not exceed 700Pa (equivalent to wind speed 34m / s)
4. Amplitude: No recurrence drama
5. Pollution level: III
◆ Features
Can be equipped with spring operating mechanism, with breaking off load current, overload current and short circuit current and other basic functions. The circuit breaker is used

in conjunction with a disconnector to form

a "combined circuit breaker" (hereinafter referred to as "combined circuit breaker") with a clear fracture. In the disconnector. On the user choose to use silicone rubber insulation

jacket, the jacket with rain and snow,

anti-pollution characteristics, can effectively avoid the isolation switch of freezing and oxidation.
Circuit breakers can be installed arrester, arrester can be installed in accordance with user requirements into and out of any side;
The circuit breaker can be equipped with inrush current controller, so that it has the function of hiding and overcurrent breaking; circuit breaker can be installed 2 ~ 3 measurement

or measurement transformer. The reclosable

controller can be used to form a recloser type intelligent circuit breaker. Basic type and coincidence controller for easy access to power occasions, PT type and coincidence controller

with no power for the occasion, intelligent

circuit breakers for radiation-type power supply and ring network power supply system to help the system to eliminate instantaneous failure, automatic Restore power supply, but also

isolated permanent failure, to achieve

distribution network automation.
Intelligent circuit breaker with 1 to 3 reclosing function, and recloser parameters can be set;
The intelligent circuit breaker has the functions of closing the inrush current control, overcurrent protection and short circuit breaking, and the parameters can be set continuously.
Intelligent circuit breaker with a small current grounding protection, and the parameters can be continuously set;
Intelligent circuit breaker can achieve both remote control of the cable, but also under the rod wireless remote control.
Can be equipped with voltage transformer, the voltage transformer from the line high voltage side of the power, according to the need to provide itself or other control equipment

220V, 110V, 100V voltage; the circuit

breaker (small hydropower type) can be used for line voltage monitoring, When the overvoltage or under voltage, the controller automatically disconnect the circuit breaker, can

be widely used in small hydropower branch and

the main power grid and branch, to achieve network monitoring and fault isolation; the circuit breaker (metering ) Can output 0.2 precision voltage and current signals, is the ideal

choice for rural power grid substation, station

outside point switch and simple metering switch.
Can be equipped with electronic PT, from the CT power to charge the battery, in the state of loss of pressure can be a number of energy storage and sub-closing operation, and can

provide the external device operating voltage;

with closing surge control, overcurrent protection and Short-circuit quick-break three-section composite protection function, the protection parameters can be set by the user

continuous; both can achieve remote control of

the cable, but also under the rod wireless remote control.
◆ Model meaning

◆ technical parameters
Table 1. Main technical parameters of circuit breakers

number	name			unit	data
1	rated voltage			KV	10
2	maximum operating voltage				12
3	rated insulation level	1minpoer frequency withstand voltage	dry test		42
		1minpoer frequency withstand voltage	wet test		34
		lightning impulse withstand voltage(peak)			75
4	rated current			A	630
5	rated short circuit breakiing current			KA	12.5/16/20
6	rated capacitior breaking current			A	400/630
7	rated operating sequence				O--0.3s--CO--180s--CO
8	rated short circuit breaking current breaking times			次	30

Continued Table 1. Main technical parameters of circuit breakers Maximum operating voltage

number	name		unit	data
9	rated short circuit closing current(peak)		KA	50
10	rated peak withstand current
11	rated short time withstand current			12.5/16/20
12	rated short circuit		S	4
13	full break time		ms	≤100
	trip time (shunt trip)	maximum operating voltage		15~50
		rated operating voltage		15~50
		minimum operrating voltage		30~60
	closing time			25~50
14	mechanical life		次	10000
15	rated operating voltage		V	DC，AC：110，220
16	operating mechanism		A	spring mechanism
17	the movable contact allows wear of the thickness		mm	3
18	weight		kg	152（182with isolation）
19	energe storage motor rated input power			≤250
20	overcurrent release	rated voltage	A	5
	overcurrent release	trip accuracy	％	±10

Table 2. Data achieved after adjustment of the circuit breaker assembly

Electric institutions

number	name	unit	data
1	contact open distance	mm	9±1
2	contact distance		2±0.5
3	average opening speed	M/s	1.0±0.2
4	average opening speed		0.6±0.2
5	contact closure bounce time	ms	≤2
6	three-phase opening synchronization period difference		≤2
7	each phase circuit DC resistance(without current transformer)	μΩ	≤80
7		μΩ	≤120with disconnector
8	the contact allows wear of the thickness	mm	3
9	weight	kg	manual meschanism：80
	weight	kg	eletric institutions：82