What is the recommended voltage gap between Live and Earth
and ,Earth and Neutral.If these are exceded what is the
solution.

Answer Posted / ravikumar josyula

If the neutral of the system is earthed then the voltage
between Live condutor and earth is line voltage/ squre root
of 3.i.e, 415 volts is L-L voltage then the voltage L - E
is 239 volts.

Voltage between Neutral and earth should not exceed 5
volts.if it exceeds the earthing was not proper. needs
attention on earthing.

Is This Answer Correct ?    15 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can we increase fuel-power ratio of any DG set?

1357


which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing

2216


What is the main cause of magnetism?

1593


What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

1818


Can we transmit digital signal to long distance ?

1484






explain wiring system

2099


How can we convert 11 kv to 440 volt without using transformer ?

995


what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.

1467


According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

3699


Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

1932


WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

1582


Safety of on line ups

1491


In dc ckt. 24v or 110v, which one is more efficient and why?

1748


how to select correct size of power cable for inverter duty motor

926


How can we choose the rating of submersible motors

2173