Year1
- 额定电压：
- 12KV
- 额定电流：
- 630A
- 额定频率：
- 50HZ
The & type outdoor high-voltage permanent magnet vacuum circuit breaker (hereinafter referred to as the circuit breaker) is a rated voltage, three-phase AC outdoor power distribution equipment. It is mainly used for breaking and closing the load current, overload current and short-circuit current in the power system. It is suitable for protection and control in substations and power distribution systems of industrial and mining enterprises, as well as places where rural power grids are frequently operated.
This circuit breaker has the characteristics of small size, light weight, anti-condensation, and maintenance-free, and can adapt to harsh climate conditions and dirty environments.
This type of product uses a permanent magnet operating mechanism for operation. The permanent magnet operating mechanism provides a holding force by the permanent magnet to keep the switch in the opening and closing position. It has a small number of mechanical parts and a short mechanical transmission chain, thus greatly improving the efficiency of the operation. Switch reliability and mechanical life.
Environmental conditions for use
)&Environmental temperature shall not be higher than &&&°C, and shall not be lower than &&°C
b)&Relative air humidity: the daily average shall not be greater than %, and the monthly average shall not be Greater than % saturated vapor pressure: the daily average is not greater than .&&, and the monthly average is not greater than .&&. When the temperature drops sharply during periods of high humidity, condensation may occur
c)&The altitude does not exceed && meters
)&The seismic intensity does not exceed grade
)&There is no place with fire, explosion, serious pollution, chemical corrosion and severe vibration.
If customers have other special requirements, they can put them forward when ordering, and our company can fully satisfy them.
Main technical parameters:
Serial number
Item
Unit
Parameter
Rated voltage
Rated frequency
Rated current
Rated short circuit breaking short circuit
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Rated peak withstand current (peak)
Rated short-time withstand current
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Rated short-circuit closing current (peak value)
Mechanical life
times
Rated short-circuit breaking current breaking times
times
Power frequency withstand voltage: (wet) (dry) phase to phase, ground/break
/
Lightning impulse withstand voltage (peak) between phases, ground/fracture
/
Secondary circuit power frequency withstand voltage
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& Product Features
& type permanent magnet outdoor vacuum permanent magnet circuit breaker mainly consists of integrated solid-sealed poles, current transformers, permanent magnet operating mechanisms and boxes body composition. This model of circuit breaker is miniaturized in design, and its casing is made of high-quality stainless steel box. It is also equipped with a manual emergency opening device. Isolating switches and current transformers can be selected according to user needs. The control of the
type permanent magnet vacuum circuit breaker is completed by the matching intelligent control unit. The switch opening and closing operation can be realized locally or remotely controlled through the communication interface. Other information of the circuit breaker can also be transmitted to the control center, and the communication channel can choose cable, optical fiber, R/etc.
The intelligent control unit is installed close to the circuit breaker and is connected to the circuit breaker through a control cable. The power supply of the intelligent control unit is divided into main and backup power supplies. The main power supply is C or, and the backup power supply is obtained from the high-voltage line and provided by the battery (installed in the intelligent control unit box). When the main power supply is working normally, the backup power supply is charged by the main power supply. When the main power supply is lost, the backup power supply can still control the circuit breaker and other operations in the control unit. The backup power supply (when fully loaded) can maintain the operation of the whole machine for no less than 1 hour. .
The circuit breaker operating mechanism is equipped with a manual emergency opening handle, which is used for emergency opening operations when the control system or power supply fails.
Performance characteristics:
This type of product uses a permanent magnet operating mechanism for operation. Since the permanent magnet operating mechanism provides a holding force by the permanent magnet to keep the switch in the opening and closing position, it has a small number of mechanical parts and is mechanically driven. The chain is short, thus greatly improving the reliability and mechanical life of the switch.
Ordering Instructions
When ordering, the model of the product should be specified (such as the rated breaking capacity of the circuit breaker, whether the circuit breaker has an isolation switch, whether the circuit breaker has a current transformer and its quantity, auxiliary power supply method, etc. ), name, number and transformation ratio of the required current transformer, etc.
& The user must propose the installation method and select the corresponding fastening accessories.
&Users must select the corresponding functional configuration according to the usage requirements
Company advantages:
Shenheng Electric Power Equipment Co., Ltd. supplies permanent magnet outdoor vacuum circuit breakers, which are mainly composed of integrated solid-sealed poles, current It consists of transformer, permanent magnet operating mechanism and box. This model of circuit breaker is miniaturized in design, and its casing is made of high-quality stainless steel box. It is also equipped with a manual emergency opening device.
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