Answer / vinoth

For Synchronisation the following parameters needs to be matched,
*Phase voltage
*Frequency
*Speed(RPm)
In auto operated DG sets the GCP will take care of matching this parameters, In manual operated DG sets there is an option for matching the Phase voltage and frequency(i.e joystick to adjust voltage and frequency).Since the RPM is depends on the first two factors, the speed will be matched if the first two parameters are same.

in Megger what type of voltage(AC or DC) are produce.how they work.

1 Answers  

---

how does relay works?

16 Answers  

---

RESISTONS R1 AND R2 in parallel = Total R.? 1-R=R1+R2 2-R=1/R1 + 1/R2 3-1/R + R1+R2 R=R1R2/R1+R2 select one

2 Answers   BSNL, PGVCL Paschim Gujarat Vij Company Limited, TCS, Wartsila,

---

Why increase in current leads to increase in conductor temperature?

0 Answers  

---

Your B.tech marks is being given in CGPA grade. How is it calculated?

1 Answers  

---

---

how can calculate 1kva generator running time in 1 liter keroscene

0 Answers   Kirloskar,

---

tell me some type of questions throught which i can prepare for exam and do my best

0 Answers   Jindal,

---

why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 Answers  

---

Why DC current is not used in transformer?

20 Answers   JK Paper, TCS,

---

what is the function of CRGO in a Transformer?

6 Answers  

---

When steam condenses and becomes water at the same temperature, the specific heat for the process in kJ/kg k is

0 Answers   Caterpillar,

---

What is the technical difference between IS:1554 and Indian Railway IRS:S63/2007

0 Answers   Indian Railways,

---