Answer / arun 7389944985

if any phase shorted to earth that time current flow div
into 2 way , CBCT senes half current only, but u earth at
only cbct end full current flow throw cbct ,then get
protection trip

how to calculate cable size by amp

19 Answers   CDS,

---

what is the funda of earthing? Explain breifly about earthing?

5 Answers   IOCL,

---

Two alternators say 1 & 2 are poised to parallel operation. But at the time of paralleing alternator 2 gets out of the system by tripping Earth fault relay. Please send me reply why this is happening?

2 Answers  

---

how does commutator convert a.c to d.c?

0 Answers   NRSC National Remote Sensing Centre, RBC,

---

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  

---

what is d main difference between KVA and KWA

2 Answers   Charoen Pokphand,

---

why mostly conductor made by 7 nos wire?

1 Answers  

---

If a ACB breaker is tripping and closing problem, then what will we check internal..?

3 Answers  

---

what is main parts of alternator.

3 Answers   HP,

---

What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

0 Answers  

---

A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

---

How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).

0 Answers   ONGC,

---