6 MVA transformer secondary is rated for 725V at no load.
The incommer ACB is rated at 690 V, 3200 Amp. Would there
be any effect on performance of ACB due to lower voltage
rating?

Answer Posted / praveen kumar gupta

ACB is not suitable as transfomer secondary voltage level
is higher than ACB voltage level which cause insulation
failure of the ACB and cause of flash.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

1640


Can we Co-ordinate relay in Load Break switch?

1625


dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

2037


How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1285


how to calculate insulation level of transformer?

1243






What is The Resistance Formula

916


how to modify DOL control panel into Delta Y connection?

1606


3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

1073


how to electrically make connection to ferroli GN2N?

1635


WRITEDOWN FEW RELY CODES

1941


How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

1522


What is shunt voltage and u v voltage witch one best

1416


how to test reverse power trip?

4061


how withstand of hi-pot test outputs of transformer wire 2.5mm

1628


What is the resistance of the field winding of a d.c. Shunt generator kept low?

773