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Huakun Electric

NEWS

New energy injects new business opportunities into the development of low-voltage electrical appliances

The rapid development of new energy provides an opportunity for the intelligent development of the low-voltage electrical industry. Low voltage electrical products are expanding to fields such as photovoltaic power generation inverters, new energy control and protection systems, distributed energy, energy storage equipment, DC switchgear, and can provide overall solutions. This field is a new important economic growth point for the low-voltage electrical industry Nan Yin, Chairman of Beijing People's Electric Appliance Factory Co., Ltd., stated in an interview with China Electric Power Daily at the 9th China Electrical Equipment Innovation and Development Forum held on June 21, 2014.

02

2018

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07

The function of reactive power compensation cabinet

The so-called reactive power compensation cabinet is an ordinary low-voltage cabinet used to prevent capacitors, reactors, primary and secondary circuits, and its main function is to perform reactive power compensation. Convert electrical energy into another form of energy. This energy is a prerequisite for electrical equipment to perform work, and it is regularly converted into electrical energy in the power grid. This part of power is called reactive power. The purpose of reactive power compensation is to use an external current source to compensate for the reactive power consumed during load operation, and the device providing this current source will become a reactive power compensation device. 1. Improving power quality, improving equipment operating conditions, and ensuring that equipment operates under normal conditions are conducive to safe production.

09

2022

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03

Application Environment of Static Reactive Power Generator

At present, the application of power electronic equipment is becoming increasingly common, and power electronic devices are essential in the production process. Such as personal computers, air conditioning equipment, lighting machines, elevators, DC motors, frequency converters, medium frequency induction furnaces, medical machines, etc. The harmonics generated by these nonlinear electrical devices can lead to energy waste, reduced system capacity, accelerated equipment aging, reduced productivity, and faults in the distribution system itself or other equipment connected to the system. In situations where harmonics are severe, static reactive power generators have become a solution for harmonic control. They use microelectronic software and hardware technology, micro sensor technology, micro network technology, and electrical manufacturing technology to intelligentize them, achieve low-voltage reactive power compensation function, and enable them to work reliably and conveniently with a series of functions such as zero crossing switching, protection, measurement, signal, and online, It is a major breakthrough in low-voltage reactive power automatic compensation and filtering technology

09

2022

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03

Functions of Static Reactive Power Generator

The static reactive power generator, also known as the reactive power compensation device, is mainly composed of three basic functional modules, namely: detection module, control operation module, and compensation output module. Its working principle is to detect the current information of the external CT detection system, and then analyze the current current information, such as PF, S, Q, etc. through the control chip; Then, the controller provides the compensated driving signal, and the compensation current is sent out by the inverter circuit composed of power electronic inverter circuits. The static reactive power generator uses switchable power electronic devices to form a self commutating bridge circuit, which is connected in parallel to the power grid through reactors. The amplitude and phase of the output voltage on the AC side of the bridge circuit are appropriately adjusted, or the AC side current is directly controlled. Quickly absorb or emit the required reactive power, achieving the goal of quickly and dynamically adjusting reactive power. As an active compensation device, it can not only track the impulse current of impulse loads, but also track and compensate for harmonic currents.

09

2022

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03

Shanghai Huakun Electric Appliance Co., Ltd. has passed the supplier qualification and capability verification of State Grid Hebei Electric Power Co., Ltd

Shanghai Huakun Electrical Appliances Co., Ltd. closely cooperates with well-known universities and professional research institutes in China, and is an intelligent electrical professional company that integrates design, manufacturing, and sales. The company has more than 20 years of production experience, mature processes, complete testing equipment, and stable and reliable quality. In July 2018, Shanghai Huakun Electrical Appliances Co., Ltd. passed the supplier qualification and capability verification of State Grid Hebei Electric Power Co., Ltd.

13

2018

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08

Electrical Encyclopedia: Numbering Methods for Electrical Secondary Circuit Connections

For the convenience of installation, operation, and maintenance, all equipment connections in the secondary circuit must be numbered, referred to as the secondary circuit label. The label generally uses numbers or a combination of numbers and text, indicating the nature and purpose of the circuit. Basic principles for labeling secondary circuits:

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2018

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08

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