Low-voltage power capacitorsThe compound switch is a very important equipment in the modern power system, and the application of the compound switch is usually to help users control the operation of the capacitor, so as to better manage the capacitor equipment. So, choose the right oneCompound switchesIt has a crucial impact on the operational safety of power systems and capacitor equipment.
First, the selection guide.
1. Current capacity selection: determine the current capacity of the compound switch according to the rated current value of the connected capacitor, and ensure that the current capacity is greater than or equal to the rated current value of the capacitor to ensure normal operation.
2. Tripping current selection: determine the tripping current of the compound switch according to the actual needs, and select the appropriate tripping current value considering the capacitive current, inductive current, and short-circuit current of the system.
3. Overvoltage protection: The compound switch should have the function of overvoltage protection, which can cut off the circuit in time to ensure the safe operation of the system.
4. Over-current protection: The compound switch should have an over-current protection function, which can cut off the circuit in time when the current is abnormally excessive to avoid equipment damage.
5. Adaptability to the external environment: The compound switch should be able to adapt to various environmental conditions, including temperature, humidity, climate and other factors to ensure the stable operation of the equipment.
Second, the key points of operation.
1. Health and safety: When operating the compound switch, the operator should pay attention to his own health and safety, wear the corresponding protective equipment, and avoid the occurrence of accidents such as electric shock.
2. Correct operation: The operator should carry out the correct operation in accordance with the instruction manual, follow the correct switching sequence and operation process, and ensure the normal operation of the equipment.
3. Pay attention to observation: During use, the operation status of the compound switch should be observed at all times, and if there is any abnormal situation, stop using it and overhaul it in time.
4. Periodic inspection: regularly inspect the compound switch to ensure that the functions are normal, and find and eliminate potential faults in time.
3. Maintenance.
1. Cleaning and maintenance: Clean the composite switch regularly to prevent dust and sundries from entering the equipment and affecting the operation.
2. Seal inspection: regularly check the sealing performance of the composite switch, and replace the seal in time if the seal is found to be poor to avoid moisture and impurities from entering the equipment.
3. Insulation inspection: regularly check the insulation status of the composite switch, and maintain and replace it in time if problems are found, so as to ensure that the insulation performance of the equipment is good.
4. Regular inspection: Regularly check the parameters of the compound switch, such as trip current, overcurrent protection, etc., to ensure the normal operation of the equipment.
The selection of composite switches for low-voltage capacitors is a process that requires many factors to consider, and only the selection of suitable switches can ensure the operation safety and stability of the power system. In actual operation, it is necessary to operate in strict accordance with the key points of operation, and carry out regular maintenance to prolong the service life of the equipment.
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Zhejiang Yishuo Electric Co., Ltd. is a high-tech company specializing in R&D, design, production, sales and service of low-voltage power capacitors, smart capacitors, reactors, reactive power compensation controllers, and reactive power compensation devices.
The company adheres to the tenet of "taking science and technology as the driving force and seeking development by quality", and is committed to building a leading brand of smart grid professional services. The company adheres to the tenet of "taking science and technology as the driving force and seeking development by quality", and is committed to building a leading brand of smart grid professional services.
The company has a high-level R&D management team, integrating R&D, production, sales and service, focusing on intelligent reactive power compensation, harmonic control, energy saving and power quality management and other high-tech industries of power automation.
Over the years, we have adhered to the mission of "making products intelligent and services intimate". In line with a high sense of responsibility to the society and users, Yishuo Electric adheres to the road of specialization, continues to innovate and transcend, and strives to make greater contributions to China's smart grid power automation