ZW1-12 Outdoor AC High Voltage Vacuum Circuit BreakerDetailed product description：

ZW1-12 Outdoor AC High Voltage Vacuum Circuit Breaker

Voltage transformer, providing operating power without the need for an additional power supply;
After the power is turned on, one opening operation can be performed;
• Low operating power and high reliability;
Output current and voltage signals for metering or remote automatic control;
In the control box, there are signal interfaces and on/off indication interfaces that can be used in conjunction with various FTUs, equipped with modulation and demodulation devices, and used in conjunction with urban network automation equipment to achieve "three remote" or "four remote" control;

1. Overview
ZW1-12 series outdoor AC high-voltage vacuum circuit breaker is a three-phase AC 50Hz outdoor device with a rated voltage of 12kV. It is mainly used in 12kV systems of rural and urban networks, as well as for load current, overload current, and short-circuit current. It can also be used in other similar places.
2. Environmental conditions for use
Environmental temperature:+40 ℃ to -30 ℃.
Altitude: 2000m.
Relative humidity of the air: daily average not exceeding 95%
The monthly average is not greater than 90%
The daily average saturated vapor pressure shall not exceed 2.2 × 10-3MPa
The monthly average value shall not exceed 1.8 × 10-3MPa.
Wind pressure not exceeding: 700Pa
The seismic intensity shall not exceed 8 degrees.
Places without fire, explosion, serious pollution, chemical corrosion, and severe vibration

3. Technical parameters of ZW1-12 outdoor AC high-voltage vacuum circuit breaker
The main electrical parameters are shown in Table 1 below

serial number	name		unit	data
one	rated voltage		kV	twelve
two	Rated Absolute Edge level	1-minute power frequency withstand voltage		forty-two
		Lightning impulse withstand voltage		seventy-five
three	rated current		A	six hundred and thirty
four	Rated short-circuit breaking current		kA	6.3，12.5
five	Rated short-circuit closing current (peak)			16，31.5
six	Rated dynamic stable current			16，31.5
seven	4s rated thermal stability current			6.3，12.5
eight	Rated short-circuit breaking current breaking times		time	thirty
nine	Rated operating sequence			Min-0.3s HeFen-180s HeFen
ten	mechanical life		time	ten thousand
eleven	Current Transformer Ratio			100/5，200/5， 400/5，800/5,1600/5

4. Structure and Characteristics
A circuit breaker consists of a conductive circuit, an insulation system, sealing components, and a housing. The overall structure is a three-phase common box. The conductive circuit is composed of conductive poles for incoming and outgoing lines, conductive clamps for dynamic and static end supports, and vacuum arc extinguishing chambers. The external insulation is mainly achieved through high-voltage porcelain sleeves, which have anti pollution ability. The internal insulation is composite insulation, mainly achieved through transformer oil inside the box, and also solves the condensation problem inside outdoor products. The operating mechanism of this circuit breaker can be equipped with a delay device according to user needs to solve the surge phenomenon that occurs during switch operation. According to user requirements, installing outdoor isolation switches can form obvious isolation fractures, making maintenance and use more convenient and safe.

5. Ordering Notice
It should be noted that:
Circuit breaker model specifications, name, operating method, matching current transformer ratio, and quantity.
The external dimensions and installation dimensions are shown in the following figure:

Figure a 1. Lifting ring 2. Ceramic sleeve 3. Box cover 4. Sealing element 5. Lifting earrings 6. Box body 7. Oil drain valve 8. Conductive rod 9. Oil gauge
10. Oil injection hole 11. Opening and closing indicators 12. Operating mechanism 13. Brand name

3.2 The circuit breaker body of this product consists of a conductive circuit, an insulation system, a sealing component, and a housing. The overall structure is a three box common box. The conductive circuit is composed of an inlet and outlet conductive rod, a dynamic and static end support, a conductive clamp, and a vacuum arc extinguishing connection. The external insulation is mainly achieved through a high-voltage ceramic sleeve, which has anti pollution ability; The internal insulation is composite insulation, mainly achieved through transformers, oil, etc. inside the box, while also solving the condensation problem inside outdoor products.
The operating mechanism has manual energy storage, manual opening and closing, overcurrent protection and other functions, while its electric motor has electric or manual energy storage, electric or manual opening and closing, overcurrent protection and other functions.

Serial number	Project Name		Unit	standard			Remarks
one	rated voltage		KV	twelve
two	rated current		A	six hundred and thirty
three	Power frequency withstand voltage (1 minute)		KV	forty-two			Type Test 47
four	Lightning impulse withstand voltage (peak value)		KV	seventy-five			Type test 84
five	Rated short-circuit breaking current		KA	six point three	twelve point five	sixteen
six	Rated short-circuit closing current (peak)		KA	sixteen	thirty-one point five	forty
seven	4-second short-time withstand current		KA	six point three	twelve point five	sixteen
eight	Rated peak withstand current		KA	sixteen	thirty-one point five	forty
nine	Rated operating sequence			Min-0.3 seconds - on-off -180 seconds - on-off
ten	Rated short-circuit current breaking times		time	thirty
eleven	mechanical life		time	ten thousand
twelve	Rated operating voltage (equipped with CT mouth type spring operating mechanism)	trip coil	Ｖ	DC or AC 220
		closing coil
thirteen	Allowable wear thickness for dynamic and static contacts		mm	three	four	four
fourteen	Total weight		kg	one hundred and sixty

ZW1-12 Outdoor AC High Voltage Vacuum Circuit Breaker