Answer / neeraj pandey

In a DG (Diesel Generator) Electrical Generator is driven by
Diesel Engine. this engine coupled with the rotor of
generator which is made of permanent magnet.

as the magnet revolves, magnetic field also revolves with
respect to stationary Stator conductor.

Due to relative motion between Stator conductor and magnetic
field voltage is developed on generator terminals.

Answer / ash

It is basically made up of Engine+Alternator.
Engine is used as Prime mover.
When alternator is rotated with the help of Engine,current
is produced.
Alternator is just the reverse of a Electric motor.When we
apply current to motor,electrical energy is converted in to
Mechanical energy.
DG converts Chemical energy in to Mechanical energy in to
electrical Energy.

Answer / venkatesan

dg is converted the mechanical energy to electrical energy.
principle of the alternater is right hand rule of flemming.

If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

---

can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

---

I want to give Power supply to a house from the Feeder, Total Load of the House is 128 KW, how to calculate cable size for this load ?

5 Answers  

---

How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.

0 Answers  

---

If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

0 Answers   Posco,

---

what is insulation percentage of motor 3 phase and singlephase

1 Answers   Infotech,

---

What is the PIU.

1 Answers   Jindal,

---

In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?

4 Answers  

---

what happens when power factor leads or lags to electical or home appliances

2 Answers  

---

how give earthing conection to household equipment?

0 Answers  

---

in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 Answers  

---

what is the difference between KVAR & KVA ?

11 Answers   Bombay Rayon Fashions, Hyundai, Pricol,

---