checklist of ELCB

Answer Posted / ram

1. switch on the elcb. press the test button on the elcb.
it should trip.
2. switch on the elcb. connect test lamp between earth and
output phase of the elcb. the elcb should trip.
if fails in both the condition the elcb is faulty.

Is This Answer Correct ?    33 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

961


What are IR values and what it should be for coil and for insulator

2528


What is the settings of distance protection relay in 400 kv line

1200


How to know th details about an electrical Drawing ? Please mention the easy method.

2010


What types of question are done for diploma students in aptitude test

1091






Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

1439


Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

2557


What do you mean by a current transformer?

654


What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

2328


if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

1717


what are all types of cross section in AC cables?

1848


how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

1684


In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

2787


In Power cable specification what is U0/U and Um.

3228


how to select proper cable for ct wiring so that drop within the limit.

1472