Answer / jnanesh

Reactor is nothing but having a wound coil inside it having
high impedence.Suppose there is an short circuit in
transmission line it limits the short circuit current to
safer value which prevents the connected equipment i.e
breaker or transformer.

Answer / marshal mothers

Reactors limit the magnitude of fault currents in the
system.

Answer / gunasekaran

there r 2 type of reactor
1.parallel reactor using to reduce the ferranti effect.
2,series reactor to limit the fault current.

Answer / karthi

Due to the ferrantic effect the receiving end voltage is
greater than sending end voltage to avoid this problem we
useing the reactors........

Answer / ragool

It can reduce the hormonic distortion and would regulate
the powerflow in a Powersystem.

Answer / arvboy

Electrically, reactor has a property that current cannot
change suddenly across its terminals. Initially, when a
reactor is switched on, it acts as a open circuit to
current. (opposite is the case with capacitor which acts as
a short when switched on or sudden current change occurs)
This principal is employed in substation where two buses
are coupled through a series reactor, when a fault occurs
in one bus/its outgoing feeders, it doesn't get transferred
to another section and meanwhile protection acts to isolate
the faulty area.For the same reasons, two separate
switchyards of same voltage levels are connected through a
reactor tie.

Another use of reactors in substation is to be coupled
alongwith capacitor bank to absorb initial current surge
when capacitor banks are switched on.
Further more, due to their lagging current production, they
are also used in conjuntion with capacitors for voltage
control.
Shunt reactors are used in long lines to counter ferranti
effect.

Answer / bl meena

reactor-coil having high inductance compared 2 its
resistance,it's used 2 limit short ckt. currents.

Answer / rajesh

To reduce short circuit current to lower value

Answer / minal

in order to balance the capacitance current that is
produces in substations, we are using reactor.
we know that xL =i/xc.

Answer / jose

Due to the ferrantic effect the receiving end voltage is
greater than sending end voltage to avoid this problem we
useing the reactors(may be used in reactors 440kv
substation)

whats the advandage of PMG in alternator?

2 Answers  

I want to know that a 160kva diesel generator contains capacity of 160kva on each phase like R=160 Y=160 B=160 total RYB=480kva or it is total capacity of all there phases like RYB=160kva ... thanks in advance ...

2 Answers   jlpl, JP Saraswat Engineers,

Safety devices in SF6 Circuit Breaker?

1 Answers   DELL,

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

0 Answers  

AVR

2 Answers  

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

0 Answers  

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

what is meant by residual over voltage & residual earth fault ?

0 Answers  

Why celling fan rotates in anticlockwise direction and table fan in clockwise direction ? Give technical reason.

5 Answers  

Efficient electrical earthing in hard rock area

0 Answers  

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

0 Answers  

What is the estimated total hydropower potential of india?

0 Answers