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What does a negative value for a reactive power means?
Meaning it's a capacitive load. Leading power factor
What effect do var's have on the power factor of the circuit?
VAr is reactive power, caused by either inductive or capacitive loads. The ideal power factor to have is 1, anything less than that is a loss on the network. The effect of VArs on the circuit though depends. If you have a load that is mainly inductive, then adding more inductive reactance will lower the power factor. However, if you introduce capacitive reactance this will increase the power factor, and the opposite is true if its a mainly capacitive circuit. So VArs will either increase or decrease the power factor depending on the load of the circuit. The ideal situation is to balance inductive reactance with capacitive reactance so they in effect cancel each other out and power factor is 1.
Why the output voltage of transformer increases when capacitive loading is used?
if the load is capacitance then reactive power is injected in the circuit, as we know that reactive power is directly proportional to the voltage, if there is increase in reactive power automatically voltage at load end of the tranformer is increases
What is captive generation in power sector?
Industries have their own DG sets to generate power in case state power is not available. This power generators are known as captive generation
The capacitive reactance of a capacitor increase as?
The capacitive reactance of a capacitor increases as the frequency decreases.
What types of loads have a leading power factor?
Capacitive loads have a leading power factor. Current leads voltage when there is capacitive reactance. (The opposite is inductive, which is lagging.)
How do you filter DC power?
D.C power can be filtered using low pass capacitive circuit
What does a negative value for a reactive power means?
Meaning it's a capacitive load. Leading power factor
Which watt meter used for capacitive loads?
Wattmeters are not used for loads which are purely capacitive or inductive, because no watts are consumed and no energy is consumed by the customer. But amps must still be supplied by the power company to supply the customer's capacitive or inductive load and the result is measured in volt-amps reactive (VAR), which can be registered on a meter called a reactive power meter. The ratio of watts to volt-amps is called the power factor (a capacitive load has a power factor close to zero). Industrial customers with a poor power factor are penalised with higher tariffs and encouraged to improve their power factor.
What is the power dissipated by a reactive load?
No power is dissipated by a load composed exclusively of either capacitive or inductive reactance.
What effect do var's have on the power factor of the circuit?
VAr is reactive power, caused by either inductive or capacitive loads. The ideal power factor to have is 1, anything less than that is a loss on the network. The effect of VArs on the circuit though depends. If you have a load that is mainly inductive, then adding more inductive reactance will lower the power factor. However, if you introduce capacitive reactance this will increase the power factor, and the opposite is true if its a mainly capacitive circuit. So VArs will either increase or decrease the power factor depending on the load of the circuit. The ideal situation is to balance inductive reactance with capacitive reactance so they in effect cancel each other out and power factor is 1.
What are capacitive loads?
A load, at low frequencies, can be either capacitive, resistive, or inductive. At high frequencies, all three aspects exist. At low frequencies (say <= 10 MHz), a capacitive load is a capacitor, represented by an ideal cap, the MOScap, or a junction cap. An unintentional capacitive load would be the wire or conductor to another wire or conductor or ground. At high frequencies (say >= 1 GHz), all things have a capacitive nature. The higher the frequency, the worst is the capacitive leak A capacitive load means just that the load acts like a capacitor load as opposed to a inductor or resistive load
Which excitation synchronous motor drawn reactive power?
Hi, Under excitation - inductive reactive power Over excitation - Capacitive reactive power.
Can transformer be operated on lead power factor?
Yes, there is no problem in transmitting capacitive VARs if they occur.
What is Ontario Power Generation's population?
The population of Ontario Power Generation is 2,007.
When was Indraprastha Power Generation created?
Indraprastha Power Generation was created in 2002.
When was Ontario Power Generation created?
Ontario Power Generation was created in 1999.
