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08/02/2022

Why should reactive power compensation be carried out? What is the principle and form of reactive power compensation?

1、 Why should reactive power compensation be carried out?        Reactive power is by no means useless power. In the AC power supply system, inductance and capacitance are essential loads, such as ferromagnetic loads such as motors and transformers. If there is no excitation of inductive reactive power, the equipment cannot work normally. For example, the line itself that transmits power at a fixed distance is a capacitive load. As long as it is transmitting power, it will be equivalent to the capacitor working. In other words, in the AC power supply system, the existence of reactive power is of great significance to the transmission and exchange of energy, which is indispensable, or the exchange system without reactive power can not work normally.    
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Why should reactive power compensation be carried out? What is the principle and form of reactive power compensation?
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05/17/2022

The significance of reactive power compensation

Why do we need reactive power compensation? From the function of reactive power, it can be seen that the electrical equipment should not only obtain active power from the power supply, but also obtain reactive power from the power supply. If the reactive power in the power grid is too low, the electrical equipment will not have enough reactive power to establish a normal electromagnetic field, these electrical equipment will not be able to work under rated conditions, and the terminal voltage of the electrical equipment will drop, which will affect the normal operation of the electrical equipment.    
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The significance of reactive power compensation
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05/16/2022

Improve power factor and treat harmonic-MEC

The client is a manufacturer of sealed lead-acid batteries. Due to the excessive harmonic of the equipment in the plant, the capacitor of the original compensation cabinet was blown up several times, and there is a power regulation charge every month. Our company appoints technicians to go to the site for measurement, makes comprehensive analysis in combination with the on-site working conditions and measurement data, and after optimization for many times, issues a reasonable compensation scheme to the customer, and configures a special power quality comprehensive treatment device MEC, which can not only control harmonics, but also compensate reactive power, with fast response speed, improve power quality and realize two-way treatment function.
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Improve power factor and treat harmonic-MEC
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02/25/2022

How to solve harmonic in Industry

Jiangyou Guangju New Material Technology Co., Ltd. has many frequency converters in the user's on-site production equipment load. During the operation of the equipment, the harmonic distortion rate is about 30% - 50%, and the harmonic content is large, resulting in a large amount of harmonic current on the power grid side, affecting the power quality of the power grid. Our company sends technicians to investigate and test the data on site, And communicate with users about the installation position of equipment in the later stage (due to the limited space on site, it is recommended to install rack type active filter on the top of the power cabinet and complete installation of the cabinet body, so as to save space. Our company has configured low-voltage active harmonic filter device for customers, which plays an important role in improving the system power factor, effectively filtering line harmonics, prolonging the service life of power equipment and reducing the transmission loss of power grid lines and transformers Played an important role. Customers highly affirm our professional technology and considerate service. From the perspective of customers, we meet all the needs of customers as much as possible while meeting the on-site use conditions. After on-site debugging and parameter setting by our technicians, the harmonic current at the grid side is reduced to about 5%, and the power quality is improved, thus meeting the national standard. Win unanimous praise from customers!  
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How to solve harmonic in Industry
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12/03/2021

LG Energy Center-20kV SVG

The 20kV SVG of 110kV substation of LGenergy center.(DASOL E&C CO,.LTD in Korea ) Customer requirements The project cooperated with our company referred to here is "20kV Shunt Capacitor Bank  in LG Energy Center 110kV Substation Construction Project". According to client's need, the product is 20kV high-voltage automatic reactive power compensation cabinet, with a single set capacity of 3000kVAR and 4800kVAR, as to meet the site conditions. Through the active cooperation of all departments of Anhui Zonsen Electric Power Technology Co,Ltd., the problems which were raised by the Partner, were solved in the shortest possible time, and the goods were delivered to the site on time within the specified time.
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LG Energy Center-20kV SVG
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11/11/2021

Project of Mexican Steel Plant

The project is an export project to South America. The project system voltage is 480V, 400V, and the frequency is 60Hz. Due to the presence of voltage and current harmonics on site, and the low power factor, power quality control is required, that is, compensation and harmonic control at the same time. Customer requirements It must be ensured that the TSC capacity is the effective output capacity under the system voltage.Table 1: The customer's electrical system is 480V, 400V/60Hz.  The switching control signal is a switch signal. Capacitors are all complementary, the effective output capacity of each channel remains the same, and the effective output capacity of each channel is 60kvar, which can be replaced with a suitable compensation capacity. The cabinet size adopts 1000*1000*2200mm(width*depth*height). The reactance rate adopts 7%, copper core reactance. Optimize the heat dissipation conditions and adopt the installation of components, and leave space in the lower part of the cabinet to install the active filter module (capacity 100A). The TSC SCR control signal is uniformly accessed and controlled by the APF controller, using +12v switch signal;voltage level electrical appliances, and 400V systems use 480V voltage level capacitor.   Solution                                                                                                          Capacity confirmation table Voltage level 400V 400V 400V 480V 480V 480V The effective output capacity of the whole cabinet kvar 240 540 780 300 540 720 Rated assembly capacity of the whole cabinet kvar 320 720 1040 400 720 960 Number of compensation channels 4 9 13 5 9 12 Single channel effective output capacity kvar 60 60 60 60 60 60 Single circuit rated assembly capacity kvar 80 80 80 80 80 80 Number of cabinets 1 2 2 1 2 2 Single cabinet size 1200*1000*2200（W*D*H）    
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Project of Mexican Steel Plant
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11/04/2021

Gold mine project in Ghana

Projects reported that the line on the site was long, 10 kilometers long, 35kV transmission voltage, 10kV power consumption in the factory area, the voltage was unstable after the voltage drop, and the power factor was not up to standard. The field equipment is mainly mining equipment, and the equipment often fails to operate normally due to unstable voltage. Sulution    According to the customer's description and some technical specifications, our company’s technical staff provided the user with a high-voltage 10kV/6.0M SVG reactive power compensation device after discussion. In order to meet the customer's working conditions, and assign technology to the African Ghana project after installation and commissioning, according to the measurement data, the voltage has remained stable, and a series of problems such as voltage fluctuations have been solved.
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Gold mine project in Ghana
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05/23/2022

Fiji project-MEC power quality device

Fiji project Fish processing plant. Voltage: 415V     Frequency: 50Hz Through the power quality test, the customer found that the current situation of insufficient harmonic and power factor in the distribution system. Based on the power quality analysis report provided by the customer and combined with many years of field experience of our company, our technicians made a reasonable compensation and filtering scheme for the user and configured the comprehensive treatment device of power quality. The equipment collected the current signal in real time through the external current transformer, The electric energy parameters are separated through the internal detection circuit, so as to realize the function of compensating reactive power and improving power factor.
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Fiji project-MEC power quality device
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05/20/2022

How to solve harmonic filter

Harmonic filter is an important issue in the field of power quality. The harmonics of power grid come from three aspects.
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How to solve harmonic filter
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