WHAT IS RMU AND WHAT IS ITS FUNCTION AND HOW TODISCONNECT

Answer Posted / apu basak

Ring Main Units
Switch the load break switch into EARTH position with an
operation lever. As direct conversion into EARTH position
from ON position is impossible due to its mechanism that it
should be switched first to OFF position before the conversion
into EARTH position.
Only when load break switch is located at EARTH position
doors can be opened or closed.
In case any one of doors is opened, mechanism operation hole
is closed. Thus load break switch operation is impossible,
which means switching to ON position is not allowed
When the works such as replacement of fuse and cable repairs
are finished, all doors of fuse compartment, cable
compartment and cable test facility should be closed before
operation of LBS. The operation order to switch on is EARTH
→ OFF → ON.
Each door is to be pad-locked to avoid unintentional opening
that may cause accident

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is transister define the transister ammiter ,base, colector.

1726


can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

1495


Please define ohm’s law for a.c (alternating current)?

642


how to increase senstivity of ct

1924


Define active filter?

595






Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

1249


what is droop control?

1626


what are the tests comes under the type test, what tests comes under routine tests.

1032


Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

2231


What is rotary phase converter?

622


how to calculate percentage impedence at 75 deg C at normal tap

1797


What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2194


Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

7312


why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

1621


Define phase lag and phase lead?

642