What is min and max voltage between earth and neutral/phase
if it perfect earthing?
Answer Posted / mohammed arshad
Every electrical installations has earthings If it has
single earthing without joints
Neutral-earth-0 volts
with joints
Neutral-Earth= + or - 5volts
between phase-neutral
Phase-Earth=230volts
As per IEC,IEEE max voltage drop allowed in electrical any
installations should be below 2.5% of rated system voltage
| Is This Answer Correct ? | 147 Yes | 29 No |
Post New Answer View All Answers
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.
Do you need any help with FEWA Electrical Supervisor exams?
What do you mean by reach and reach the point of the relay?
What is the difference between electronic regulator and ordinary rheostat regulator for fans?
why star point of HT motor not earthed?
Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??
What is load boxes ?
what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R
why and how voltage sharing in transformer, during magnetic balance test ?
What is vaccum currcuit breaker.define with cause and where be use it device?
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
Define noise?
how to calculation increase capacitor,increase power factor for three phase.
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
Load break swicth maintenance procedure.