0
Capacitor bank is use to control the power factor of the load, because there is many inductive load in the circuit which is the cause of the lagging P.F, so we use the capacitors to maintain the P.F to the unity, the capacitor have the nature of the leading P.F that's way the resultant P.F of the load's lagging and the capacitor's leading current is near to the unity, and the unity P.F has very good effect on the network.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoThe related link site has an excellent description of what you are looking for. See related links.
Add your answer:
Earn +20 pts
Why you are using the capacitor voltage transformer in Sub station?
To Step down high voltages we require CVT,because it will step down the volatge by uisng capacitor in its circuit.
Can you put a larger size capacitor on your air conditioner?
You might be able to but why you would want to is questionable. A capacitor could be used in air-con for two reasons. First to start the pump motor if it is a single-phase induction motor. Secondly, as a power-factor corrector. In both cases the two capacitors have probably been correctly selected and there is no point in using a different one. A replacement capacitor should have the correct voltage rating and the correct VAR rating (or the right capacitance in microfarads).
Why is it important consider the correct polarity of an electrolytic capacitor when using it in the circuit?
The electrolytic capacitor can only have voltage across it in one direction. Failure to comply will result in catastrophic destruction of the capacitor.
What is the difference between displacement and true power factor?
'Displacement power factor' is the technically-correct term used to describe the cosine of the phase angle (i.e. the angle by which the load current leads or lags the supply voltage) due to the reactance of a load. Usually, when we talk about the 'power factor' of a load, we mean 'displacement power factor'.However, another type of power factor can exist in a circuit, due to the presence of harmonics in the current waveform, due to non-linear loads such as SCR rectifiers. This type of power factor is temed 'distortion power factor', and may be corrected using filters.So, the terms 'displacement' and 'distortion' are used whenever it is necessary to clarify these different types of power factor.
What tends to decrease reactive power in a circuit?
By adding capacitors or inductors in series (typically lower power) or parallel (higher power power factor correction); the choice of capacitor or inductor depends on whether the reactive resistance is "leading" or "lagging". A capacitor is modelled 1/jCw, where w = frequency in rads; an inductor is modeled jLw. If you know the reactive resistance, and the system frequency, you can calculate how much capacitance/inductance is needed.
What are the importance of capacitor?
It depends on the purpose where you are using the Capacitor.If you are using in power systems then it may be used for improvement of Power factor.Which is the important factor in industry.
Causes of low power factor methods of improving power factor?
using highly inductive loads may lead to reduction in the power factor. or consumption of unappreciable amount of power also results in the same. methods to improve PF . using synchronous condensers using capacitor banks using ow inductive loads
Why you are using the capacitor voltage transformer in Sub station?
To Step down high voltages we require CVT,because it will step down the volatge by uisng capacitor in its circuit.
How much capacitor add to fifty five kilo watt load?
That depends on the power factor on the line, which in turn depends on what kind of machinery is using the 55 KW.
Can you put a larger size capacitor on your air conditioner?
You might be able to but why you would want to is questionable. A capacitor could be used in air-con for two reasons. First to start the pump motor if it is a single-phase induction motor. Secondly, as a power-factor corrector. In both cases the two capacitors have probably been correctly selected and there is no point in using a different one. A replacement capacitor should have the correct voltage rating and the correct VAR rating (or the right capacitance in microfarads).
Why is it important consider the correct polarity of an electrolytic capacitor when using it in the circuit?
The electrolytic capacitor can only have voltage across it in one direction. Failure to comply will result in catastrophic destruction of the capacitor.
Why you using DC power supply for capacitor?
Because it does not allow ac to pass through it...
Will capacitor run motor work on windmill?
No , it only for reducing the reactive power and at the time of motering mode for that purposre only we are using capacitor in wind mill
What is the use of capacitor bank?
I believe that capacitor banks are used to improve the power factor of lagging loads. They do this by reducing the reactive load. Capacitor banks cannot improve the resistive component of a load, and they cannot improve the power factor of leading loads. Here is an explanation of the technical terms used: A leading load is one where current leads voltage. Lagging or reactive loads have current which lags the voltage. Resistive loads have a current which is in phase with (not leading or lagging) voltage. If a capacitor bank is used on a circuit where current lags voltage, it decreases the current lag, improving the power factor. If a capacitor bank is used on a leading or resistive load, it will increase the leading time and make the power factor worse. A leading load is one that is already too capacitive.
Can a capacitor hook directly to a car stereo without using an amp?
No. The capacitor is there to store the power so that the power isnt drained from the car at once. It helps reduce the strain placed on the vehicles electric system.
Why you are using capacitor banks to improve power factor?
A poor power factor is caused by inductive loads or electronic devices. These loads cause excess current to flow in the circuit reducing the efficiency. Inductive devices are considered to be a "load" for reactive power. Reactive power does not actually do any real work by is required to develop magnetic fields. Capacitors are considered to be "sources" of reactive power. So these capacitors will supply the reactive power to the inductive loads instead of the utility supplying this power. This is why capacitors are used to improve a poor or low power factor. This is just a very brief description on this topic. Power factor correction is becoming a very complex topic with more and more poor power factor loads being used every day.
What is the difference between displacement and true power factor?
'Displacement power factor' is the technically-correct term used to describe the cosine of the phase angle (i.e. the angle by which the load current leads or lags the supply voltage) due to the reactance of a load. Usually, when we talk about the 'power factor' of a load, we mean 'displacement power factor'.However, another type of power factor can exist in a circuit, due to the presence of harmonics in the current waveform, due to non-linear loads such as SCR rectifiers. This type of power factor is temed 'distortion power factor', and may be corrected using filters.So, the terms 'displacement' and 'distortion' are used whenever it is necessary to clarify these different types of power factor.
