Read Best Answer

Editorial / Best Answer

csbalu  

 Profile Answers by csbalu Questions by csbalu

• Member Since Aug-2009 | Aug 29th, 2009

---

When there is a sudden loss of load, The Generator terminal voltage increases due to the fact that the IX drop in the generator winding decreases. The EMF generated being the same the reduced reactance loss leads to a sudden rise in generator voltage..but the AVR (Automatic Voltage Regulator) will act instantly to bring this voltage to the set value by reducing the excitation.
There is practically no effect of this on the transformer barring the reduction in I2R (copper Losses) and reduced IX drop.

csbalu

 Profile Answers by csbalu Questions by csbalu

• Aug 29th, 2009

When there is a sudden loss of load, The Generator terminal voltage increases due to the fact that the IX drop in the generator winding decreases. The EMF generated being the same the reduced reactanc...

spcspc1654

 Profile Answers by spcspc1654 Questions by spcspc1654

• Jul 19th, 2009

When there is a sudden loss in the demand then there is over-excitation of the generation and the power factor is increased. Also the rotor angle of generator is changed (unstable) for a while.

Improve Answer

ilamurugan

• May 4th, 2014

Both source becomes single source of higher capacity and at the time of syn only entities are taken for reference. Once syn done its.single.source so need of current flow within that source

atul sudhakar

• May 2nd, 2014

In that case ,current flows due to the difference in load angle. synchronizing the system increases the efficiency of the power flow

Answer Question  Select Best Answer

1)What is the latest generation of circuit breakers called?

2)What are the special cables required for explosion proof wiring?

3)What are the different types of soft starters for large motors?

4)What is the similarity and what is the difference between relays and PLC?

priyobrato

• Dec 7th, 2014

Relay can be used as potential free dry contact,with less switching speed cause its a electro mechanical device .PLC has better switching speed.BOTH are controlling device.

Chakry

• Nov 30th, 2014

The cables used in Inflammable and explosive situations should be Mineral insulated Copper sheathed complying with BS 6207.

Answer Question  Select Best Answer

Read Best Answer

Editorial / Best Answer

abbasanwarali  

 Profile Answers by abbasanwarali Questions by abbasanwarali

• Member Since Oct-2008 | Oct 16th, 2008

---

Actually there is no volt during normal condition. In case of any fault resistor will act as a low resistance path. because above mentioned components are high impedence components. so the huge fault (volt) will be grounded and the equipment remains safe.

HARESHKUMAR KHATRI

• Apr 4th, 2015

Absolutely there is no any voltage.

Rahulshelke

 Profile Answers by Rahulshelke Questions by Rahulshelke

• Jul 12th, 2010

The voltage is null or Zero.

Improve Answer

ULAGANATHAN

• Oct 3rd, 2013

Voltage exist only for a closed circuit whereas emf exist for a open circuit.

vehvariya

• Sep 23rd, 2013

Voltage is the potential difference applied between the two terminals, where as EMF is the electromotive force induced in the conductor due to the voltage because of the floe of the current.

Answer Question  Select Best Answer

What is shape of the coils used in a transformer ? choose the correct one from the bracket (rectangular,oval,circular,cylindrical ) & justify it with detail reason.

Is transformer a machine ?choose the correct one from the bracket (yes/no) & justify it with detail reason.

manikandan.l

• Jul 18th, 2014

Rectangular

AlHussein Abdallah

 Profile Answers by AlHussein Abdallah Questions by AlHussein Abdallah

• Jul 17th, 2014

Star connected rotor of induction motor has a standstill impedance of (0.4+4j)ohm per phase and rheostat impedance per phase is (6+2j)ohm. The motor has induced voltage of 80v between slip-rings at st...

Answer Question  Select Best Answer

Difference between pi and pid controller

shreya

• Mar 28th, 2015

Pi is nothing but the proportional integrator controller.it is used improve steady state stability i.e used to reduced steady state error.and pid means proportional integrator and derivative controlle...

Rakesh

• Mar 23rd, 2015

Power system is technology to transporting the energy to industry and home .And the power system basically work on three principle Generation,Transmission,and distribution.

Answer Question  Select Best Answer

What is neutral transformer?

Alok Behera

• Feb 12th, 2014

If the earthing transformer on the Delta Side is outsides the Zone of protection the Earth Fault(E/F)in the delta system outside Current Transformer(CT) locations would produce current distributions a...

Answer Question  Select Best Answer