what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

4 Answers   NPTC, NTPC,

---

What is the safe limit of voltage between earth and neutral in india.

2 Answers   Incepta Pharmaceuticals,

---

what is ph test in coolent cheking

2 Answers  

---

Is it possible to use AC supply insted of DC supply in trip coil operation? if not, why?

5 Answers   HAL,

---

why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

2 Answers   Bhel,

---

How size of Earth Strip is determined for a particular Fault current.

1 Answers  

---

How to do the REF Stability test for power transformers in Site?

1 Answers   Escorts, Siemens,

---

what is the difference between neutral

10 Answers  

---

some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

---

What will happen if we give AC supply to DC motor?

4 Answers  

---

the question is about buchloz relay why we called it buchloz relay

7 Answers   HIL,

---

i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

0 Answers  

---