1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ?
2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG
TYPE/ SMART ETC ETC?
3. WHAT IS MILLENEUM BUS BAR USED IN DB?
4.DIFFERENTIATE MCCB AND MCB.
iam interesting to design the control panel for 3 phase
pump motors by controling single phase switches.iam plan to
use fuse,contactor & relay for motor protection .how can i
select the voltage & amps rating for fuse,contactor & relay
plz guide me .if anybody clarify my doubt means it will
more helpful for my future .
I had applied for the RRB test in the ELECRICAL category.
I would be pleased if any of you can sent me previous year
question papers. Please forward the question papers to
Thanks and regards
According to underground cables
a) stress b/w sheath & conductor is high b) inrush of
core & conductor
I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD
SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF
NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ?
DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN
WHY THERE ARE MARKED LINE & LOAD ON MCCB.