when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why

when meggering a 3ph,480v oil reservoir heater on a regen
gas compressor, why do I get a reading to ground when
meggering phase to ground? shouldn't it read opened or is
there something that makes it read closed? on the same
heater, when ohming, it reads open. thanx

Question Posted / jackman5181

1 Answers
5303 Views
I also Faced
E-Mail Answers

when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why do I get a reading t..

Answer / k.prakashchandra

The resistance between phase to ground is in mega ohms if
star point is not earthed.

Is This Answer Correct ?

3 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

what will happen when the dc supply is given to the capacitor?

0 Answers

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers

what is resistance

6 Answers AITM,

A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

0 Answers TCS,

Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

0 Answers

distribution is maximum done by a)radial b)network c) parallel d)b & c

0 Answers

suppose MCC (Motor control center)panel work on field the relay on this damage or not work and earth fault occurs in this and no indication in relay panel given below. than MCB trip or not and what effect the panel how find relay will damage or not work.

2 Answers

plz tel me syllabus and exam date 4 jr executive engg (electrical)

0 Answers AAI Airports Authority Of India,

findout of current?details 440v,3phase,085pf,hp-5

9 Answers

magnetizer priciple

0 Answers

what is meant by armature reaction & where its happen ?

3 Answers

Why transformer neutral earthing? What is advantages?

3 Answers

For more Electrical Engineering Interview Questions Click Here