Answer / vivek

When Diesel generator overload its freqency reduce fron set
value ,so RPM of dg decrease as result .Fuel governer
direct control the speed of engine .when sensor actuate it
stop the engine.

Answer / lokesh

Even diesel gen cannot hold the over load when it reaches
perticular load it tripps for safety purpose

Answer / mubanga mulenga

its because it reaches past its steady state stability
limit, delta 2, so it will swing out into trip.

Answer / deltawye

the diesel generator set will shutdown during overload is
because of its voltage regulator

Answer / sarfraz

In my views
for few second it will support then safety operate and it
switch off the genset

Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

0 Answers   Siemens,

In what voltage EHT works(133/132/33/66kv?

3 Answers   Adhunik,

When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.

5 Answers   TATA,

how we calculate capacitor bank mvar for 11 kv distribution networ , and i need releation between capacitor bank with voltage, frequency, current, pf

2 Answers  

In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

0 Answers  

what must be the mf for a meter with the following conditions. line ct ratio-100/1 line pt ratio- 220kv/110v meter pt ratio- 3X63.5V meter CT ratio- -/1 A

1 Answers  

in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

1 Answers   DLF,

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1 Answers   CSPL,

where we use the SFU & FSU?

0 Answers   L&T,

I know during Surge Impedance Loading maximum power is transferred through a transmission line and also Sending end voltage becomes equal to Receiving end voltage i.e Vs=Vr so my question is if both end voltages are equal then how current travels in such line hence how power is transmitted because flow of current needs Potential difference??

3 Answers   NTPC,

what is the VA(Voltampire)? define with calculation?

4 Answers  

i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

0 Answers