Answer / virendra

because the reactive prower produce by the Capcacitor may
harm the AVR of the DG set

Answer / kadiresan.k

whether the load is on EB or DG, p.f to be maintained close
to unity and the type of load to be studied and capacitor
to be connected accordingly. The Capacitors to be switched
ON and OFF according to the load with the help of APFC
panels / Controllers. In case of load shedding time, the
concerned capacitors to be tuned off immediately, else it
will result in over voltage at the system if the load is on
DG side. So the power system to be optimised to handle the
load in both EB and DG with proper power factor correction
systems.

Answer / william lobo

By putting capacitor on Genset what we are doing is only
loading the genset additionally.
Capacitor is used to improve the power factor of the
system. This is important for the power supply cos; hence
they insist that pf should be 0.9 or thereabout.
Hence it is compulsory to use Capacitors to improve the PF
if below 0.8 or they will fine you.
When using a gen set we have to see what is the type of
load. If it is motor load inductive then we have to switch
on some of the capacitor banks only.

we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

0 Answers   Siemens,

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WHY ARE THE LT GENERATORS SOLIDLY EARTHED WHILE THE HT GENERATORS ARE EARTHE THROUGH NGR OR NGT??

3 Answers  

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ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH

6 Answers  

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PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

0 Answers   ABB,

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hoW to select a CT?

4 Answers   BARC,

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CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor

0 Answers  

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i am swathi, b.tech 4th year. In smps(switched mode power supply)we are using diodes,mosfets,igbts for controling of current. And my question is why we did not use thyristors(scr)? it is also act as a switch,then what is the drawback of scr as compared to above transisters> if we use the scr,then what is happening ? plz give reply as soon as possible bcoz i am doing project on smps. plz frnds i want ans for that. if anybody know the ans plz send to my e-mail id /swathi.tadakapally@gmail.com/

5 Answers   EEE, TCS,

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which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

2 Answers   Bhel,

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What is C check in a diesel generator and what are parts and what has to be done during the C check

4 Answers  

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how to decide the capacity of accl

0 Answers  

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how can we solve the RMS value of alternative Qnty is .707 , explain detail .

2 Answers  

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1.What is captive power plant? 2.What is national grid?Give brief idea.

0 Answers  

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