Why is the earth pin in a 3-pin plug the longest and the
thickest?
Answer Posted / dilip kumar
The earth pin in a 3-pin plug the longest and the thickest
because at the time of fault, the fault current must pass
through the earth connection to the ground, the fault
current produced is so many times greater than the normal
current.
| Is This Answer Correct ? | 10 Yes | 6 No |
Post New Answer View All Answers
what is the use of permanent magnet generator in exciter
how did the testing of protection relays done through current injection
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
how to calculate magnetic force genrated by a coil ?
what is difference between 2 pole structure and 4 pole structure in transformer yard
working function importance of mdc meter
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
what is the use of the circle diagram
how can we change the phase angle b/w two phase?
What is meant by positive and negative feedback?
Write the force balance equation of ideal spring element.
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance
I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting