What is the reason why the reactive power compensator always lags

Hysteresis in general is normal.

The hysteresis is not to lag to the following is fine, this lag is the reaction compensation system after the reactive power is inductive, the need for capacitive reactive power to offset, that is, the need to invest in the capacitor bank, but if you invest more, it will become advanced, so that the system voltage is relatively high, easy to burn things.

The reactive power compensator has the following functions:

1. Improve the utilization rate of power supply equipment. Under the condition that the apparent power of the power supply equipment is constant, the larger it is, the more active load (p=s*cos) the power supply equipment can carry

2. Improve the efficiency of power transmission. When the active load (p) is constant, because (p ui*cos) u does not change, the larger the cos, the smaller i is, and the smaller the loss in the i ** path.

3. Improve the quality of power supply. The smaller the i, the smaller the voltage loss in the line, and the better the end-of-line voltage can be guaranteed.

4. Improve the safety of power transmission. i is small, the heat generation of the line is reduced, and the safety of the transmission line is improved.

It's right to lag, and if you're ahead of schedule, you're still worried about burning things.

The hysteresis is not to lag to the following is fine, this lag is the reaction compensation system after the reactive power is inductive, the need for capacitive reactive power to offset, that is, the need to invest in the capacitor bank, but if you invest more, it will become advanced, so that the system voltage is relatively high, easy to burn things.

Summary. Hello, I am glad to answer for you: the reactive power compensation cabinet is opened, first close the main switch or knife melt switch, and then put the compensator into the manual, respectively, divide all the capacitance contactors or composite switches, and then put into the setting state, first put the overvoltage and undervoltage in, and then put the capacitance capacity and number, and each input and switching time, and then set the power factor requirements, at this time you can put in the automatic state, when the power factor does not reach the set state, the compensation proposal will be automatically put in, and when the setting state, it will automatically stop, The capacitor is automatically opened when the overfill is overfilled, so that the commissioning is complete.

Hello, I am glad to answer for you: the reactive power compensation cabinet is opened, first close the main switch or knife melt switch, and then put the compensator into the manual, respectively, divide all the capacitance contactors or composite open and seepage off, and then put it into the setting state, first put the overvoltage and undervoltage in, and then put the capacitor capacity and number, and the ridge every input and switching time, and then set the power factor requirements in, at this time you can put it into the automatic state, when the power factor does not reach the setting state, the compensation proposal will be automatically put in, to the setting state, Automatic stop, over-compensation capacitor self-draft eggplant open and open, so that the debugging is completed.

Press and hold the "Separate Setting" button for 5 seconds, and the reactive power compensation controller can enter the parameter setting state. 2.Press the "Separate Settings" button to switch the parameter items to be set, and enter the upper or lower button to repair the configuration after the Suitong operation.

3.Press the "Separate Settings" button to confirm that the setting data for the item is saved, and switch to the next parameter to be set. 4.

Once all the settings are complete, pressing the "Separate Settings" button will return to the automatic state. Guess as Tan.

1. Overvoltage alarm: This automatic capacitor fails, and the possible cause of overvoltage alarm is:

A. It is indeed overvoltage, the actual voltage is consistent with the voltage displayed by the controller and is higher, the line voltage is generally greater than 420V, and the phase voltage is greater than 240V.

b. Improper parameter setting, the overvoltage setting of the controller is low, if the normal working voltage is generally 420V, consider the overvoltage value to be slightly higher, and pay attention to the voltage is too high which may lead to the shortening of the capacitor life.

c. The voltage sampling error of the controller is too high and too large, such as the actual voltage is 400V, and the controller shows 430V.

2. It is permissible for the power factor of the controller to deviate from the actual value, but it cannot be exceeded, so one of the two must be unqualified.

3. If it is put into operation for the first time, first of all, it is necessary to determine the correct wiring, focus on checking the position and phase sequence of voltage and current sampling, and if it has been used normally for a period of time, analyze and eliminate faults according to items.

Pinggao Group is a professional reactive power compensation manufacturer of intelligent electrical.

Can't compensate for reactive power at light load? What to do?

Hello dear! <>

Can't compensate for reactive power at light load? There are generally the following four reasons: 1. When the current transformer sampling error transformer is installed, the measured current and the measured voltage sampling can not be in phase, and when the sampling current is phase A, the measured voltage should be in phase B and C.

The current sampling should be taken from the transformer on the main outlet side and not from the transformer on the outlet side of the capacitor. 2. The working power supply of the contactor and indicator light should not be returned to the reactive power compensation indicator when the indication should be clear and true, which can correctly reflect the working status of the capacitor, so that the user can see the real operation of the reactive power compensation device at a glance. 3. Improper parameter setting of reactive power automatic compensation controller, the setting of the compensator must be reasonable and correct during reactive power compensation, otherwise it will be leaked and simplified, resulting in reactive power and poor compensation effect.

4. When the reactive power measurement is measured, the measurement position must be selected accurately, otherwise it will cause unnecessary losses due to inaccurate measurement.

Summary. Hello, dear, reactive power compensation controller variable ratio reactive power means that it refers to a parameter in the reactive power compensation controller, which is used to describe the proportional relationship between the controller when outputting reactive power and the input active power. It represents the proportion of the reactive power output by the controller to the active power input

Hello, dear, the reactive power compensation controller variable ratio reactive power means that it refers to a parameter in the reactive power compensation controller, and the proportional relationship between the controller when the output reactive power is generated and the input active power is used. It represents the ratio of the reactive power output by the controller to the input active power

According to the needs of the power system, the reactive power compensation controller realizes the power by adjusting its reactive power output, so the number of relatives is corrected or the reactive power is balanced. The ratio reactive power setting will determine the ratio between the reactive power output and the input active power of the control device. For example, if the ratio reactive power is set, it means that the reactive power output by the controller is 80% of the input active power

What does it mean to set 120 for pro-change ratio reactive power.

Affinity-ratio reactive power refers to the proportional relationship between reactive power and active power. It represents the correlation between reactive power and active power to regulate the flow of reactive power in the power system to improve the power factor and the stability of the chaotic core. This means that the device will produce a higher reactive power haha than the input active power when the output reactive power is output

Is this good for my family's electricity bill.

Reactive power equipment (also known as power factor correction equipment) is a device used to improve the power factor of the power system. By using variable ratio reactive power equipment, the reactive power in the grid can be reduced, and the power factor can be improved, so as to reduce the ineffective power loss of the power grid.

Is it better or worse to change than reactive power set 120.

Dear, for the case where the ratio reactive power equipment (or power factor correction equipment) is set to 120, I need Yuan Xun to further understand the background stupid information in order to give an accurate evaluation. Normally, the usual power factor correction equipment used is set to 1 ha or close to 1 ha