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Capacitors are connected in series with some lines (series compensated lines) and in parallel. Capacitors in parallel are used to prop up the voltage at that location by injecting reactive power onto the grid. Capacitors in series are used to cancel out some of the inductance of the line, which allows for more power to be transported through the line.
Capacitors at load centers are often used for power factor correction, and are connected in parallel (line to ground). To achieve efficiency in a power delivery system it is most efficient to have the current and voltage in phase. Often the load is inductive hence the current lags the voltage (due to motors etc.). Capacitors are switched in and out of the transmission system to counteract this effect.
What else can I help you with?
How many capacitors are use in a circuit?
Capacitors store charge. There are many applications for their use. There is no set amount of capacitors in a circuit since it is application dependent.
How do you use a diode to charge your saltwater capacitors with ac voltage?
Simply include the diode in one of the AC supply lines to your capacitor. (not sure what a salt water capacitor is) but, all capacitors only store charge, which is discharged as a DC current.
Can you use 50volts 3300uf capacitors instead of 25volts 3300uf capacitors?
Yes.
Why capacitor used in transmission line?
Capacitors can be used to decrease the inductance of power lines (series compensation), and for voltage support (capacitors are put in parallel with the system).
Since when has fixed capacitor have been seen in use on transmission line?
Capacitors have always been added on both power lines and telephone lines to compensate for the build up of inductive reactance in long runs of wire.
What is schematic symbol of the paper capacitor?
paper capacitors are non polar, so they have the same symbol as any other non polar capacitors like ceramic disc, two parallel lines.
What is the symbol of non-polar capacitors?
The symbol for non-polar capacitors is typically represented by two parallel lines, with a straight line drawn through each to indicate that they are not polarized. The absence of a polarity marking distinguishes them from polarized capacitors, which have a clear positive and negative terminal.
Which type of dielectric is used most often in variable capacitors?
The type of dielectric most often used in variable capacitors is air. Also, trimmer capacitors often use mica.
What is the use of capacitors in fire alarm circuit?
Fire alarm system may be having some electronic devices and cards, in which some capacitors are used. Capacitors are part of any electronic cards.
Why seres capacitors are used in transmission lines?
A poor power factor (due to large reactive loads) in a transmission system will reduce the voltage on local bus bars. Typically, especially for industrial facilities, there will be a large inductive component to the system loads, by installing shunt capacitors in close proximity to these loads the inductive component is effectively cancelled out, allowing the transmission lines to carry greater real power.[Once the capacitors are charged the reactive power demand of the inductive load is fulfilled by the charge/discharge cycle of the capacitors rather than by long-distance transmission of reactive power].
What is use of decoupling capacitor?
to protect a circuit from damaging
Do capacitors really only work in ac alternating current?
Not only for AC. Some applications use capacitors to hold a steady charge for periods of time.
