Answer / ayyappan

p.f 0.85 to 0.90 maintain

Answer / anu

all are telling its 0.9 to 1 but nobody is not telling how
ur maintain that? what are the technics using for that?

Answer / ronald

power factor regulation is done by connecting the Capacitor
bank- Dry type (Auto- by fixed steps or by manual
regulator) to the main Distribution board MDB.(remember the
baiscs and how cos phi is calculation is made)

Answer / mphiremath

always pf should maintaine 0.90 to 0.96. It avoids the more
energy consumption.

Answer / thowsif_emerson_csm team

The Power Factor Should be above 0.9 as per BESCOM
Starndard.

If the PF is bellow 0.9 then in Karanataka thier will some
amount of Penalty i.e P.F Penalty,they will add up this
amount in the monthly Electriccity Bill issued KPTCL.

So to avoid this we sholud maintain the PF Above 0.9 Lag....

Answer / sarang hivarkar

P.F can be maintained by using HHF Harmonic Hybrid Filter (HHF) panel and APFC panel.p.f should be 0.9 to 1 required in Industry.we are used HHF panel to reduce Harmonic distortion current Harmonic in the plant and maintained the P.F.

Answer / ravi.hs

for any industry you have keep maintaining the pf @ 0.95
that is the std .

Answer / rajkumar n

power factor is the ratio of true power/apperent power*cos
fay is called power factor.. loads are three types
1.Resistive Load
2.Inductive Load
3.Capacitive Load

Inthis load Resistive load is Unity Powerfactor
Inductive load is Lagging powerfactor
Capacitive Load is Leading Powerfactor

PowerfactorImprovement:

1.Static Capacitor
2.Synchronous condensor
3.Phase Advansor

Answer / shasheen

In our orgn we are maintaining 0.98 by APFC at L.T side
and H.T Capacitors parallel to motors and H.T bus
capacitors. If our power factor is less than 0.95 in A.P
State elect board will impose fine Our running load is
35 MVA OF Cement Plant

Answer / nagaraj

o.98

I've descovered that when the earth wire in a domestic electrical installation is not connected back to the board (ground) a voltage of between 9-24v is is found to be present in the earth wire. When connected at the board there is no voltage - is this normal and why does it happen?

3 Answers  

why ahould you show client/engineer activities clearly on the project plan

0 Answers  

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?

0 Answers  

What is the better way of passing 400 amp from sending end to receiving end ? By overhead line or underground cable and why ? if underground cable then how much depth require ?

1 Answers   Aditya Birla, HCL,

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3 Answers  

what is corona effect?

39 Answers   ABB, Genco, Wipro,

What is primary distribution and secondary distribution of ac power?

3 Answers  

How can you measure battery AH?

1 Answers  

what is the ohmic value of transformers

1 Answers  

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1 Answers   NTPC,

why we commonly use delta star winding in power and distribution transformers

7 Answers  

3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

0 Answers