Answer / raul

Theoritically it is like dat only dat the frequency n voltage of the incoming machine must match the grid frequency n voltage for proper synch, but practically it is kept slightly higher in order to reduce the impact on speed governor n automatic voltage regulator bcoz as the grid pulls d generator into synchronism, there is sudden load applied on d generator due to which there is a dip in both frequency n voltage of d generator which is 2 b corrected by the speed governor by opening d turbine valve more n more steam enters into turbine which corrects d dip in frequency n on d other hand d AVR corrects d dip in voltage by giving d signal 2 d pilot exciter to give more excitation 2 d rotor field winding of d generator.
I hope d concept is now clear 2 u......

Answer / kj

In theory the frequency and voltage should match exactly.
In practice the incoming generator voltage and frequency
should be slightly hogher than the grid.

This is to prevent the set from tripping on reverse power
or kva. The incoming generator will pick up some load
straight away so the frequncy and voltage matches the grid.

Answer / raul

Please read some quality books first b4 answering such questions......... but still thnx for some brainstorming

Answer / b goutham

Actually the condition for synchronization is voltage and frequency of incoming generator should be equal to the grid otherwise there will dead short cicuit...and also large currents flows through the incoming alternator which may damage the winding of the alternator.....so the voltage and frequency should be the same...

lightning current is ac or dc..?????

7 Answers  

---

What is LT? And specify the range of voltage?

10 Answers   HSL,

---

Describe kW and kva and difference between

4 Answers   BTM,

---

Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

0 Answers  

---

What type of protective system we uses in L.V. distribution panels?

6 Answers  

---

Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

0 Answers   DAE,

---

what is the ideal earth resistance

11 Answers   Amit Enterprises, Enercon,

---

Whta is earthing?What is the optimum value of Earth Pit?

2 Answers   Bharti,

---

in a transmission line if the load is suddenly increased in the receiving end of the system the phase shift will ?

1 Answers  

---

i alternator which of genarator used for excitor the what is reason?

3 Answers  

---

Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????

0 Answers  

---

What are all the points to be checked for a newly re-winded motor before installation

1 Answers   Cisco,

---