Answer / iamdon

Earthing of a machine is checked with the help of a devies
called earth tester.For proper earthing, reading of tester
should be from 4-10 ohms approximately.

Author:arbelectbit@yahoo.com

Answer / k.cs

This method of checking is ok,but there is a chance of
electrical shock may be felt by testing person by mistake.
Hence it is always advisable to test at electrical socket
with out connecting machine in the socket, that is there
willbe a 1-3 voltages should be in between neutral and
earth points.

Answer / puneet

earthing we can check by measuring the voltage betwwen phase and machine earth point if we get the voltage then it is ok

Answer / avi gulia

earthing can be checked by either checking voltage between the phase and earth or by checking voltage between the neutral and earth it should be 2 to 4 volts.

Answer / b soni

Earthing of a machine is checked with the help of a devies
called earth tester.For proper earthing, reading of tester
should be from 1-5 megaohms approximately.

What is the latest generation of circuit breakers called?

1 Answers   Focus, OPTCL,

---

what do you mean by lagging and leading current.explain in detail.

1 Answers  

---

what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

0 Answers  

---

What is the GNA & MNA in armature reaction of Dc Generator

2 Answers   Khetan,

---

what are the main parts of DG? explian thier functions?

8 Answers   Apollo Power, Tata DoCoMo, Tyco, Vizag Steel,

---

---

explain in detail HV & LV bushing connection in power transformer (110 / 11 kv 16 MVA)

6 Answers   TNEB Tamil Nadu Electricity Board, wbsedcl,

---

what is wave trap? please explain the working and principle

4 Answers  

---

What is A.C Resistance for Earthing ?

2 Answers  

---

What type of changeover switch needed to run a load of five 1.5 tonn ACs.

1 Answers  

---

Is VVVFD reduced the starting current of an induction motor?

1 Answers  

---

Do these factors (settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot)) are the part of first order, second order, higher order, linear, non-linear, open-loop, closed-loop, homogeneous & non-homogeneous systems ?

1 Answers   Limton,

---

If the rank of a (5x6)matrix Q is 4, then which one of the following statements is correct ?

1 Answers   GATE,

---