Answer / kamaleswaran

its well known tat der r 2 types of syn m/c..dey r salient pole and cylindrical... v kno tat speed s indirectly proportional to no. of poles..(N=120f/P)..Hydro gtr needs low speed operation.. salient pole has many poles which reduces it speed n its used fr hydro gtr and turbo gtr needs to b operated at high speed.. so cylindrical s used..

what is meant by real power,active power,reactive power & apprent power ?please explain it?

3 Answers  

---

What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

0 Answers   DAE,

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

---

why the carbon brushes are broken in srim while the motor runningtime

0 Answers  

---

plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?

0 Answers  

---

what is trip circuit supervision relay? How does it work in switchgear?

6 Answers   Radha Regent Hotels,

---

Which theory is used in the analysis of salient pole rotor synchronous machines? Who is credited for this developement? Could the same theory be used for cylindrical rotor synchronous machines?

1 Answers  

---

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers   NHPC,

---

parallel operation for tansformer which condition fill fil for that

11 Answers   ITC Infotech, Suzlon,

---

The principle of switching circuits for different types of batteries in application of storage systems

0 Answers  

---

How can we calculate the cable size??? plz give the formula !!!!!

3 Answers  

---

describe the fully control circuit diagram of ac drives

0 Answers  

---