what is purpose of using reactor in substations.
- 20 Answers
- 103426 Views
- Heavy Engineering Corporation Ltd HECL, I also Faced
- E-Mail Answers
Answer Posted / 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.
| Is This Answer Correct ? | 55 Yes | 4 No |
Post New Answer View All Answers
How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.
How to calculate cable size by using load.?? Any formula...
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
how you configure motorvision relay (L&T make)from DCS
how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?
Please explain me abt PQ diagaram in the power sector.
What are the functions of temperature scanner in power transformer?
How to calculate energy stored in an inductance?
what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
Explain dc generator with its types?
What is kvar?
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
pls,send the previous year written test questions.
how to calculate the Neutral transformer impedance?
what is the function of bearing in dc mchine" and where it is placed
