What is the rating of your capacitor bank at your company.
- 34 Answers
- 50445 Views
- Amara Raja, Apollo, Cisco, Reliance, Sterling, TNEB Tamil Nadu Electricity Board, Torrent Pharma, MEIL, JLL, CBRE, Government, ATC, Bharat, Victory, Ajnara Group, Amol Electricals, Bhagiradha Chemicals & Industries, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sharma jiten
The most common method for improving power factor is to add
capacitors banks to the system. Capacitors are attractive
because they're economical and easy to maintain. Not only
that, they have no moving parts, unlike some other devices
used for the same purpose.
When you add a capacitor bank to your system, the capacitor
supplies the reactive power needed by the load. If you size
and select the capacitor bank to compensate to a unity
power factor, it can supply all the reactive power needed
by the load, and no reactive power is demanded from the
utility. If you design the capacitor bank to improve the
power factor to a quantity less than 1.0, the reactive
power supplied by the bank will be its rated kVARs (or
MVARs), while the rest of the reactive power needed by the
load will be supplied by the utility.
| Is This Answer Correct ? | 123 Yes | 11 No |
Answer / vara prasad
guys this question does't mean that to specify your
company's capacitor bank capacity .... please answer in
general how to calculate your required capacity of
capacitors at your company depending on load
| Is This Answer Correct ? | 27 Yes | 3 No |
Answer / chandru
The addition of capacitance depend upon your power factor.suppose u may get more than 0.97 or unity Pf,u no need to add capacitor.becoz it may act like load
| Is This Answer Correct ? | 8 Yes | 1 No |
Power factor is only present in the ac power supply systems. In dc there is no usage of power factor terms. Ac supply is having frequency and potential is alternating with respective to time as such the load on the ac power source is of mix like capacitance, resistance and inductance
Capacitance is offered by ug cables and heater and filament lamps offer the resistive loads and hid and fluorescent lamps offers inductance value
Inductive reactance (xl) and capacitive reactance (xc) is counter each other and resultant effect will reflect in ac system in addition to normal resistance. This cumulative resistive effect is called as impedence.
Now power factor is equel to pf = r/z.
Now if we draw a power circle the you know the differnce of kw and kva is made by kvar that is reactive power if we reduce this reactive power then the kva demand and kw i mean apparent power and actual power will became more or less equal. Now power factor that is quality power.
So we can improve the power systems by adding counter reactive power by adding capacitors in kvar ratings.
Apfc panels are best suitable for proper monitoring as static correction will not perform well in massive load centres as failure and degradation of capacitor is hard to find out and rectify.
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / natrayan
I Need to know the how much capacitor bank that i have to put for these Load KW or HP or KVA
For Example: 15HP we can use 2kVAR of capacitor
like that?...
| Is This Answer Correct ? | 8 Yes | 4 No |
Sir We have a REF relay connected to 10MVA(Y-Y) Transformer.on External earth fault REF relay trips along with earth fault relay.The REF relay has no complant as we tested relay.Why is it happening?
What can make the the overloads operate when a star delta three phase motor starts?
Whats changes in Transformer Oil BDV in changes in temp or Climate?
if single phase is having 220v supply then why three phase is having 440v instead of 660v?
how to find the resistance and gap volatage of the diode??
IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?
what shoud be strength and weakness to impress interviewer????????
If auto trip is operated, can you close the breaker.
1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?
which type of effect of turbine and generator reverse power protection ?
why are use star delta startor.
What happens if i apply 500V to 440V rotary Switch ?
-
Civil Engineering (4645) - Mechanical Engineering (3704)
- Electrical Engineering (15785)
- Electronics Communications (2638)
- Chemical Engineering (762)
- Aeronautical Engineering (79)
- Bio Engineering (30)
- Metallurgy (95)
- Industrial Engineering (199)
- Instrumentation (2882)
- Automobile Engineering (171)
- Mechatronics Engineering (41)
- Marine Engineering (62)
- Power Plant Engineering (170)
- Engineering AllOther (1336)
