The power dissipated by a resistor of 10ohm when a current of 2A passes through it is:(a) 0.4W(b) 20W(c) 40W(d) 200W

2 Answers  

---

What device is use for metering current at lt consumer end..??

2 Answers   Power Grid,

---

through which medium return supply given to alternator please answer in details

1 Answers   MahaGenco,

---

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

0 Answers  

---

what is the diffrence between current transformer and voltage trasformer

3 Answers  

---

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

0 Answers  

---

What differance between Circuit brekar and Isolater?

14 Answers   TATA,

---

i want to trigger ATS (Mains +Generator )from external system could any body help me in this regard ?? is it posible if yes please tell me how?

1 Answers  

---

why tungsten is used in incandescent lamp instead of nichrome though nichrome has high melting point

2 Answers  

---

Why double earthing is required ?

1 Answers  

---

out of all machines which have highest efficiency and why?

2 Answers  

---

How can i calculate heat load ?

3 Answers   DSSR, NSN,

---