Pole Mounted Automatic Vacuum Circuit Breaker 630A/1250A Vacuum Load Break Switch

AC Automatic Vacuum Circuit Breaker Intelligent Outdoor Vacuum Load Switch With Isolation Switch

Product Description:

The ZW8-12 automatic vacuum circuit breaker is designed to comply with international standards and is manufactured using advanced technologies. It has a rated voltage of 12kV, a rated current of up to 630A, and a short-circuit breaking current of up to 20kA.

The circuit breaker is composed of several key components, including the vacuum interrupter, operating mechanism, and control system. The vacuum interrupter is the heart of the circuit breaker and is responsible for interrupting the electrical current. It is designed to operate in a vacuum, which helps to prevent arcing and ensures reliable operation.

The operating mechanism is responsible for opening and closing the circuit breaker and can be operated manually or electrically. The control system monitors the circuit breaker and provides feedback to the operator, allowing them to monitor the status of the breaker and detect any faults.

The ZW8-12 pole mounted circuit breaker is designed to be highly reliable and requires minimal maintenance. It has a long service life and is capable of withstanding harsh outdoor environments, making it suitable for use in a wide range of applications.

Feature:

Microcomputer protection function

1.It has a three-stage current protection function: fast trip, time-limited fast trip, and overcurrent protection.

2.Flexible setting of fast and slow timing characteristics.

3.Users can set protection values and delays.

Reclosing function

1.Up to three reclosing operations can be set.

2.Users can freely choose the number of reclosing operations and different reclosing intervals.

3.It has functions of acceleration before reclosure, acceleration after reclosure, and sequential coordination selection.

Network reconstruction function

1.Includes undervoltage trip lockout, automatic reclosing, short-time no reclosing, continuous no reclosing, undervoltage reclosing, automatic reset, short-time activation of standby protection value, and continuous activation of standby protection value.

2.Distributed intelligent control can be realized according to the pre-set function during ring network operation.

3.When a network fault occurs, it automatically clears the fault, isolates the fault area, transfers power automatically, and restores power to the non-faulty area.

Measurement function

1.It records voltage, current, and other operating data, as well as event records.

FTU function

1.It can achieve four-remote functions of remote control, telemetry, remote signaling, and remote adjustment.

2.It includes remote control, various state remote monitoring, remote display of various measurement values and event records, and remote adjustment of various set values.

Communication interface and protocol

The controller is equipped with one data interface and standard remote communication protocol, supporting various communication methods such as fiber, wired, and wireless, serving as a remote terminal in the power distribution automation system.

Remote control function

It can be equipped with a wireless remote controller to achieve remote opening and closing operations at close range, with safe and reliable operation.

Backup battery

1.It can be equipped with a backup battery to maintain normal operation for 12 hours after AC loss.

Dual power switching protection function

1.It has dual power mutual control, with automatic delayed reclosure function on power-on and automatic delayed trip function on power-off.

2.The outgoing side has a function of not closing when there is electricity, and the two switch positions are interlocked.

 
Structure:

1.Mold-based One-time Stretching Forming Technology: The upper cover of the enclosure is manufactured using advanced one-time stretching forming technology, which ensures a high level of mechanical strength, an IP4X protection rating, and an aesthetically pleasing appearance. This technology also facilitates easy installation. Additionally, the enclosure is resistant to rust and corrosion. Users have the option to choose between stainless steel or high-quality steel plate spray treatment.

2.Disconnecting Switch (Optional): The ZW32-12 vacuum circuit breaker offers an optional disconnecting switch feature. This switch is specifically designed based on the ZW8 switch body unit. It serves as a convenient and clearly visible disconnect point during distribution line maintenance. To prevent misoperation, a mechanical interlocking device is incorporated between the disconnecting switch and the circuit breaker. This ensures enhanced safety and minimizes the risk of accidental operations.

Condition:

1.Ambient Temperature:-40℃~+70℃ (average daily temperature not exceeding +40℃)

2.Altitude:>1000m(max. 3000m)

3.Ambient Humidity:Average daily relative humidity not more than 95%, average monthly relative

4.Pollution level:Level IV

5.Speed of Maximum Wind:700Pa (equivalent to wind speed 35m/s)

6.Earthquake intensity: 8 level

 Technical Parameter: