Who in China has done a better job of reactive power compensation

See which compensation you're going to use.

There are 2 types of filtering and anti-harmonics. If you have enough budget to use ABB's PQF series, it seems to eliminate 98% of harmonics. It is generally used in the production line of precision instruments.

If it is not enough, use a domestic ordinary capacitor plus % reactor (for 5-7th harmonics). However, the high order of the intermediate frequency furnace (11, 13, 15, 17, 19 harmonics and above is invalid). It can effectively protect the capacitor and achieve the compensation effect.

Nantong Fujite Electric Power Automation **** is very good to do power reactive power compensation and harmonic control, we are using their products, and the service is also very good. Here's their**:

Hope it works for you.

The intermediate frequency furnace is mainly to control harmonics, and the problem of reactive power compensation will be naturally solved after harmonic control.

Ningbo Shen photoelectric furnace ****, the industry is more famous, you can consult.

Anshan Rongxin, is near our company.

The abbreviation of Shenyang Far Ker Electronic. Farker is a registered trademark. The company mainly produces and sells low-voltage power capacitors, reactors, controllers, reactive power compensation modules, smart capacitors and other products.

It is used for low-voltage reactive power compensation and filtering device. The products are widely used in electric power, industry and energy systems. It is currently a high-quality reactive power compensation businessman in China!

The difference between active compensation and reactive compensation is as follows:

Active power compensation: It refers to the active power compensation when the grid voltage is too low, the capacitor compensation cabinet is put into time to improve the power factor of the power grid, which is converted into active power and consumed by the equipment.

Reactive power compensation: refers to the power supply network power supply, in the user unit, the part of the power that is not consumed by the active power, by the user unit through capacitance compensation, and then transmitted back to the power supply plexus network, is reactive power compensation.

Advantages of reactive power compensation:

1. Compensating for the power without surplus is to improve the power factor of the microgrid, which is equivalent to improving the efficiency of the microgrid, reducing the load of the transformer, and reducing the loss of the transformer.

2. Reduce power loss and power loss in the power grid. By compensating for the reactive power of the cherry blossoms, the line loss of the microgrid can be reduced, the power consumption can be directly reduced, and the electricity cost can be reduced.

3. Improve the power quality, improve the work efficiency of the electrical equipment and reduce the failure rate, make the voltage and frequency more stable, and filter out a certain power harmonic, so as to ensure that the electrical equipment works more stable, the work efficiency is higher, and the failure rate of the power equipment is reduced, which is equivalent to improving the efficiency of the equipment.

4. Reduce the investment in transformers and other equipment to save investment. After the power factor of the microgrid is improved, the load of the microgrid is reduced, and the same transformer can supply power to more equipment, which reduces the investment in substation equipment and indirectly improves economic benefits. <>

1) Compensating for reactive power is to improve the power factor of the microgrid, which is equivalent to improving the efficiency of the microgrid, reducing the load of the transformer, and reducing the loss of the transformer.

2. Reduce power loss and power loss in the power grid. Through reactive power compensation, the line loss of the microgrid can be reduced, and the power consumption can be directly reduced and the electricity cost can be reduced.

3) Improve power quality, improve the work efficiency of electrical equipment and reduce the failure rate; Reactive power compensation can improve the power quality, make the voltage and frequency more stable, and filter out certain power harmonics, so as to ensure that the electrical equipment works more stably, the work efficiency is higher, and the failure rate of the electrical equipment is reduced, which is equivalent to improving the efficiency of the equipment.

4. Reduce the investment in transformers and other equipment to save investment. After the power factor of the microgrid is improved, the load of the microgrid will be reduced, and the same transformer can supply power to more equipment, which will reduce the investment in substation equipment and indirectly improve the efficiency of the economic cluster.

Effect of reactive power:

1) The increase of reactive power leads to the increase of current and apparent power, so that the capacity of electrical equipment such as backup generators, transformers, starting and control equipment and wires increases;

2) The power supply equipment and line damage and sock consumption increase;

3) The voltage drop of transformer and line increases, so that the voltage of the power supply network fluctuates, in the power grid, the fluctuation of active power generally has little impact on the grid voltage, the fluctuation of the grid voltage is mainly caused by the fluctuation of the power of the laughing world, if it is an impact reactive power load, it will also make the power grid produce violent fluctuations.

Benefits of Reactive Power Compensation:

1) Improve the power factor of the grid and avoid fines from the power supply bureau, in addition to this, the power supply bureau may also have incentives;

2) reduce the operating current of the power grid;

3) Reduce the loss of wire and transformer;

4) Increase the use margin of transformer;

5) Increase the grid voltage.

Hey. In the 31 years that our company has been engaged in the R&D, production and sales of reactive power compensation equipment, customers often ask similar questions. Let me excerpt a piece of the company's training materials:

What are the benefits of reactive power compensation for the user?

The main thing is to save a lot of money for users! Here's why:

1. Because the COS value does not meet the requirements of the power supply bureau, it will be fined, although passive, not being fined is to make money.

2. Reduce the back and forth transmission of reactive energy in the line, that is, reduce the loss of electricity, which is equivalent to saving money. For high-power equipment, the power saving effect of local compensation is better.

3. Improve the power quality, especially to ensure the stability of the voltage, so that the voltage is not reduced due to the large reactive power demand, improve the output of transformers, motors and other equipment, improve work efficiency, and reduce electricity.

4. Reduce the reactive power requirements of the transformer, stabilize the voltage, reduce the failure of electrical equipment due to low voltage or voltage fluctuation, and reduce the number of failures, which is equivalent to saving expenses.

5. The compensation capacitor has a certain absorption effect on the high-frequency clutter in the power grid, which can improve the power quality, reduce the interference to electronic equipment (such as computers, etc.), increase the normal working time of the equipment, and save expenses.

Improving the power factor and doing reactive power compensation is an energy-saving technology advocated by the state, but it is highly professional and needs professionals to do it. For more information about reactive power compensation, power factor, etc., you can see the team announcement, or you can come here to ask questions, find and discuss with the team.

Avoid fines for failing to meet assessment standards and improve the efficiency of special transformers.

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1. Many electrical equipment in the power grid works according to the principle of electromagnetic induction. They establish an alternating magnetic field during energy conversion, and the power absorbed and released in a period are equal, and this power is called reactive power. In the power system, not only the active power is balanced, but also the reactive power is balanced.

2. Under a certain active power, the smaller the power factor cos of the power consumption enterprise, the greater the reactive power required. If the reactive power is not supplied by capacitors, it must be supplied by the transmission system, and the capacity of the power supply lines and transformers needs to be increased in order to meet the power requirements. In this way, not only will the investment in power supply be increased and the utilization rate of equipment will be reduced, but also the line loss will be increased.

To this end, the national rules for power supply and consumption stipulate that reactive power should be balanced on the spot, and users should design and install reactive power compensation equipment on the basis of improving the natural power factor of electricity, and put it into or cut off in time with its load and voltage changes to prevent reactive power reversing. It also stipulates that the power factor of the user should meet the corresponding standard, otherwise the power supply department can refuse to supply power.

Therefore, it is of great significance to automatically compensate the reactive power to improve the power factor and prevent the reactive power from being reversed, so as to save electric energy and improve the quality of operation, whether it is for the power supply department or the power consumption department. The basic principle of reactive power compensation is that a device with a capacitive power load and an inductive power load are connected in parallel in the same circuit, and energy is exchanged between the two loads.

In this way, the reactive power required by the inductive load can be compensated by the reactive power output by the capacitive load. At present, shunt capacitors are widely used as reactive power compensation devices at home and abroad. This method is easy to install, short construction period, low cost, easy to operate and maintain, and low self-loss.

Third, the main role of using shunt capacitors for reactive power compensation:

1. Improve the power factor.

2. Reduce the loss of transmission lines and transformers.

3. Improve voltage quality 4. Improve equipment output.