what is the diff between earth leakage relay and earth
fault relay?
Answer Posted / rajdip thakur
Earth fault relay trips when the current through the neutral exceeds a preset value.Simply it acts on the superposition theorem. Whether the vector sum of the phase current and the neutral current are same or not.If not then it operates.
But the earth leakage circuit breaker operates when some current flows from neutral to ground. We know that the voltage difference between neutral and ground is zero.It operates only when there appears some voltage.
Is This Answer Correct ? | 14 Yes | 6 No |
Post New Answer View All Answers
hello if any one have papers vof hpcl or sail, plz send me
how to get electrical supervisour certificate in gujarat
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME
Difference between control junction box (cjb) and power junction box(pjb)?
what is the difference b/w ATS and HTS?
i want wipro vlsi placement pattern please send me
Did RMU have ct and pt ?
State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor
Make a list observation on Transformer?
If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?
with help of neat sketch explain principle of TIG welding process
how can i get the formula to find out the cable size if i know the load of main fuse protection.
what is the ATS .And how it works.
I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR