Alternating current filter capacitor

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Alternating Current Filter Capacitor

(AC Filter Capacitor)



1.    Introduction

AC filter capacitor connected with filter reactor and resistor together form AC filterequipment used for filtering

harmful harmonic current in the power system and the improvement of power factor of the system.



2.    Structure

Take aluminum foilas polar plate and polypropylene film as medium, inside of the capacitor tank isfilled with impregnant.



3.    Service condition

Installation site:  indoor, outdoor, plateau, dump and hot, foalland, etc.

Ambient temperature:-40~ +45

Standard: GB11024 “Shunt capacitors of nominal voltage 1KV and above for AC power systems”.




4. Main parameters


AAM type AC filter capacity (with internal fuse)

kV-Rated Voltage, kVar-Rated capacity, UF-Rated capacitance, kg-Weight


 

 No.                Type                   kV             kvar            uF         kg        W mm     h1 mm    h mm      H mm






AAM type AC filter capacity (without internal fuse)

kV-Rated Voltage, kVar-Rated capacity, UF-Rated capacitance, kg-Weight





AFM type AC filter capacity (with internal fuse)

kV-Rated Voltage, kVar-Rated capacity, UF-Rated capacitance, kg-Weight




AFM type AC filter capacity (without internal fuse)

kV-Rated Voltage, kVar-Rated capacity, UF-Rated capacitance, kg-Weight




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Q:What is the electrolytic capacitor inside?
Electrolytic capacitor inside the composition of the structure: two close to each other with a coating with polarity, positive and negative metal electrode plate, the middle folder with insulating material (medium for the electrolyte,) constitute
Q:How to judge the capacitor is good or bad?
Due to the amplification of the composite transistor, the measured capacitance of the charge and discharge process to be amplified, so that the multimeter pointer increase the amplitude, so easy to observe. It should be noted that: in the test operation, especially in the measurement of small capacity capacitance, it is necessary to repeatedly change the measured capacitance of the pin contact A, B two points, in order to clearly see the multimeter pointer swing.
Q:Does the size of the capacitor affect the power consumption?
The capacitance is the physical quantity that characterizes the capacity of the capacitor to charge the charge.We charge the capacitance of the capacitor by increasing the potential difference between the two plates of the capacitor by one volt.
Q:Low voltage capacitor voltage 0.45 and 0.4 What is the difference between usage
0.45 and 0.4 capacitors are capacitors that rated the line voltage of 0.45kV and 0.4kV; they are suitable for 380V voltage systems, the difference lies in their pressure rating;
Q:What is the principle of capacitance isolation?
When the capacitor is connected to the DC circuit, there will be a brief charging process. When the positive and negative plates are filled with charge (when the voltage across the capacitor is equal to the supply voltage), there is no current and then flow, so the capacitor is isolated DC current
Q:Is the capacitor attached to the carbon foil positive?
In order to facilitate the manufacture of capacitors, usually the electrolyte solution is immersed in special paper, and then with a place of aluminum and immersion in electrolyte solution with the paper together, so you can more easily in the original aluminum foil to lead the negative.
Q:What are the differences between capacitors and capacitors?
Capacitance, resistance, inductance is physical quantity. Capacitors, resistors, inductors are components that have a specific physical quantity (capacitance, resistance, inductance).
Q:How to identify high voltage capacitors is good or bad
You have no voltage regulator, if there is, with a voltage regulator, an ammeter a voltmeter (available multimeter instead) to the capacitor plus an integer current (controlled by a voltage regulator), and then calculate the capacitance based on the voltage reading and current reading Impedance, and then divided by 3184 calculated by the tolerance value, the results and the capacitor nameplate on the standard almost no capacitance, and the other side of the capacitor is broken
Q:What is the phase-shifting capacitor, what is the difference between it and the general capacitor
And the phase-shifting capacitor has the function of changing the phase of the alternating current signal in addition to the characteristics of the general capacitor. The answer can be compensated by the power factor compensation in parallel with the phase-shifting capacitor, and the phase-shifting capacitor can be used to produce the phase-shifting capacitor fault diagnosis device.
Q:How does the capacitor work? What does it do?
The bypass capacitor is an energy storage device that provides energy to the local device, which can equalize the output of the regulator and reduce the load demand. Like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device. To minimize the impedance, the bypass capacitor should be as close as possible to the load device's power supply pin and ground pin.

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