What does 10kv high voltage switchgear, capacitor cabinet compensation cabinet mean? What role doe

in the power system.

It is connected to a capacitance compensation cabinet to balance the inductive load.

The function is to make the power factor of the grid.

It has been effectively improved.

The low power factor reduces equipment utilization.

The investment in power supply is increased, the voltage quality is compromised, the service life of the equipment is reduced, and the line loss is greatly increased. Therefore, by connecting the capacitance compensation cabinet in the power system, the inductive load can be balanced, and the power factor can be improved, so as to improve the utilization rate of the equipment.

In order to improve the energy waste caused by the low power factor of the grid and these factors that are unfavorable to power supply production, the power factor of the grid must be effectively improved. Reactive power is generated where reactive power is required, i.e., reactive power compensation is added.

Equipment & Devices.

The capacitance compensation cabinet is mainly used to optimize the quality of the power supply, because we have more inductive loads in real life, which leads to the small COS value of the power grid, and the active energy of a rated capacity will be less, and the reactive power will increase, resulting in the waste of electric energy; Therefore, we artificially add the appropriate capacitive load to increase the COS value, so that the active power increases. When the cos value is equal to 1, it is the impedance load, and the utilization rate is maximum, but this is an ideal state.

Capacitance compensation cabinet is a reactive power on-site compensation device designed for motor energy saving and consumption reduction, which is connected in series in the rotor circuit of the motor, by changing the phase relationship between the rotor current and the rotor voltage, and then changing the phase relationship between the stator current and voltage of the motor, so as to improve the power factor and overload capacity of the motor itself, reduce the stator current of the motor and reduce the loss of the motor itself. (Hubei Bohong Electric****).

In the power system, electric motors and other coil equipment are used in many ways. This kind of equipment takes a part of the current from the line to do work, and also needs to consume a part of the inductor current from the line that does not do work. This makes the current on the line a little bit more extraordinarily larger.

10kV capacitance compensation is used to compensate for inductor current, increase power factor, and decrease reactive current.

What is the function of the capacitance compensation cabinet.

The input of the capacitance compensation cabinet is divided into two situations (whether manual or automatic);

a. The power factor is mainly considered, and the purpose is not to be fined by the Electricity Bureau. The input condition is that the power factor of the bus is lower than the prescribed limit of the Electric Power Bureau (for example, the Electric Power Bureau examines it, then, when the power factor of the bus is lower, the capacitor cabinet should be put into it, and the input is automatic or manual, depending on how the compensation cabinet on your site is done), and the removal condition is that the power factor reaches the upper limit (for example.

b. The main consideration is the bus voltage to ensure the safe operation of the equipment at the end of the bus. When a capacitor is put into operation, it will cause an elevation of the bus voltage. In some places, the bus voltage is low, resulting in the equipment can not be started at all (such as low-voltage system, rated 380V, some system voltage is low, only 340V, at this time, the lower end of the equipment can not be started at all, after putting in some capacitors, the bus voltage can be raised to the rated voltage, at this time there may be overcompensation), at this time do not consider the level of the power factor, with the principle of voltage priority, input or cut off the capacitor, here, the capacitor acts as a regulating bus voltage, rather than power factor compensation.

With the development of society and the improvement of economy, our science and technology have been greatly improved, and at the same time, we have developed a lot of scientific products, which has brought a lot of convenience to our lives, which is also a thing that many people are very happy about. For example, the high-voltage capacitor cabinet is also a scientific product that has brought a great effect to our lives, and has promoted the development of a lot of electricity to a certain extent. So many people will also ask, what is the operation process of high-voltage compensation switching?

Let's talk about it with you. <>

First of all, the operation process of high-voltage capacitor compensation switching is generally very formal, so it should be carried out in accordance with the formal procedure. When the capacitor bank can be put in, one part of it is put into it, and then another part of it is projected according to different needs. This is very important and must be done in accordance with the proper process.

Secondly, when the capacitor will be switched, we must pay attention to its order, first manual input, followed by manual cutting, and finally automatic switching. And when the capacitor cabinet is switched, it must be carried out in accordance with the regular procedures to maximize the various functions of the machine, and at the same time to ensure its safety performance. <>

Secondly, when switching the capacitor cabinet, we must pay attention to the current factor. Because of the largest inductive load in the circuit.

It will cause the corresponding deviation of the power grid, so the current control must be very strict. At the same time, the corresponding current compensation should be given to the burst start of the maximum current load, which can also reduce the impact on the power grid. Therefore, when switching the capacitor cabinet, we must also pay attention to these problems.

In short, the capacitor cabinet switching is a very strict process, we must pay attention to the highest and lowest values of the current capacitance when working, and also pay attention to some formal procedures when switching, continue to play its greatest role at the same time, to ensure its safety performance. That's all for that, and I hope it will help you.

1. The capacitance compensation cabinet is automatically compensated, and the capacitor will be automatically put in or cut off according to the power factor setting value. 2. The capacitance compensation cabinet also has a manual automatic switching device, which requires manual input or removal of capacitors in manual transmission. 3. Whether it is automatic or manual, the contactor is controlled (in order), and then the input or removal of the capacitor is controlled through the contactor.

First, cut off all the isolation switches, check whether the circuit breaker is closed, and then close the cabinet door, twist the door handle in the closed position, and after confirming that it is correct, open and close it with a knife.

It is necessary to master the correct method when using it, and in any rated voltage capacitor bank, it is necessary to prohibit charging closing, and every time the capacitor bank is re-closed, it must be carried out after the discharge is completed.

1. Capacitance compensation is reactive power compensation or power factor compensation, and the electrical equipment of the power system will produce reactive power when it is used, and it is usually inductive. It reduces the capacity efficiency of the power supply, which can be improved by increasing the capacitance appropriately in the system.

2. Capacitance compensation: The capacitance and load of the capacitance compensation of the distribution cabinet are connected in parallel, and the capacitance is the same as the power bank. When the load increases, the output voltage of the power supply decreases due to the internal resistance of the power supply.

Because the two ends of the capacitor have to maintain the original voltage, that is, part of the electricity in the capacitor has to flow out, which delays the downward trend of the voltage.

3.Method: Parallel capacitors, generate capacitive current to offset the inductor current, and reduce the so-called reactive current that does not do work to a certain range. Reactive power supply, like active power supply, is an indispensable part to ensure power quality, and reactive power balance should be maintained in the power system.

The withstand voltage value affects the compensation effect.

If the system voltage is 400V, then the compensation amount of the capacitor of 20kvar 398UF is 20kvar, then the compensation amount of 20kvar 315UF is less than 20kvar.

At present, the largest capacitor group in China has 30kvar, and a cabinet can be installed with up to 12 units, which is generally about 230 yuan without kvar.

Other types are also available in 15kvar. The withstand voltage values of 150kvar capacitors are 250V, 440V, 525V, and 690V.

The capacitor size is selected moderately, too much influence will affect the effect, the actual result, the withstand voltage value can be selected large, for example, if you are 380V, then you are advocated to choose 440V, the withstand voltage value affects the compensation effect.

There are 50kvar capacitor group, there are also 15kvar, how much is in a cabinet, the key is to see the width and depth of the cabinet, as well as the size of the corresponding capacitor bank, generally according to the needs of customers, as well as the size of the capacity, to determine how many channels are more appropriate.

Three-phase 10-80kvar systems.

Two sets of 50 kvar and two sets of 25 kvar

Summary. Hello pro will be happy to answer 1 for youThe transformer is a device that converts voltage, it can convert high voltage into low voltage, and can also convert low voltage into high voltage, but the transformer will lose in the process of working, and the function of the capacitance compensation cabinet is to compensate the transformer to reduce the loss, make the transformer work efficiency higher, and improve the power utilization.

Therefore, the capacitance compensation cabinet and the transformer are interconnected and inseparable.

Hello pro will be happy to answer 1 for youThe transformer is a device that converts voltage, it can convert high voltage into low voltage, and can also convert low grade and voltage into high voltage, but the transformer will lose in the process of working, and the function of the capacitance compensation cabinet is to compensate the trace of the transformer to reduce the loss, make the work efficiency of the transformer higher, and improve the power utilization. Therefore, the capacitance compensation cabinet and the transformer are interconnected and inseparable.

Xiaomei also added some information for you as follows.

1.The relationship between the capacitance compensation cabinet and the transformer is the basis of the transformer is the trace cabinet of the capacitance compensator, and the transformer must be used in combination with the capacitance compensation cabinet to maximize the benefits. The capacitance compensation cabinet is a tool for detecting the capacitance and inductance of the power system, which can detect the change of capacitance and inductance, and can adjust the frequency of the system.

The capacitance compensation cabinet can reduce the change of capacitance stove inductance, improve the efficiency of the transformer, reduce the loss of current, and prolong the service life of the transformer.

Summary. Hello, dear. The relationship between the capacitance compensation cabinet and the transformer is that the transformer must be installed when the transformer is above 50kv-a.

This is because the natural power factor of any unit load does not meet the standard of power supply. It's not a question of how much you pay. The specific size of the installation depends on the natural power factor of your load and the value required by the standard to configure, in the design of the distribution device is generally based on each estimate, and equipped with automatic compensation regulator.

Hello, dear. The relationship between the capacitor compensation cabinet and the transformer is that the transformer must be installed when the transformer is above 50kv-a. This is because the natural power factor of any unit of load cannot meet the local mode standard in power supply.

It's not a question of how much you pay. The specific size of the installation depends on the natural power factor of your load and the value required by the standard to configure, in the design of the distribution device is generally based on each estimate, and equipped with automatic compensation regulator.

Hello, dear. Data Extension:1

What is Capacitance Compensation? The capacitance compensation cabinet is reactive power compensation or power factor compensation. The electrical equipment of the power system of the reactive power compensation cabinet manufacturer will produce reactive power when in use, 2

The role of the capacitance compensation cabinet is to improve the load power factor, reduce the reactive power, and improve the efficiency of the power supply equipment; Reduce network loss and save energy; Increase the transmission capacity of the power grid and increase the stability limit by 3The working principle of the capacitor cabinet and the preparation of the group punch It refers to the closing of the knife fuse switch and the circuit breaker, and the reactive power compensation controller outputs the control signal according to the phase difference of the voltage and current of the incoming cabinet to control the closure and disconnection of the AC contactor.