how many types method in earth testing?

3 Answers   ONGC,

---

how "rabbit ACSR" conductors are more efficient than "weasel ACSR" conductors

1 Answers   AITM,

---

please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

0 Answers  

---

wat is the advantage of increse in frequency?how the powersupply range decreses as the frequency increses?like in america,it uses 110 ac and 60 hz?

4 Answers  

---

How much ph is maintained of water resistance starter for slipring induction motor ?

0 Answers  

---

what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

---

What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.

0 Answers   Eskom,

---

Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

1 Answers  

---

how to calculate the speed of a induction motor without using tacho meter?

6 Answers  

---

what is meant by vector group in transformers? wy we r using that?

1 Answers  

---

what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

0 Answers   ABC,

---

How can we measure the residual voltage in dc machines?

0 Answers   GPREC,

---