Interested to Buy Any Domain ? << Click Here >> for more details...
what is the safety of ACB & VCB and how can this work and
how can the service the ACB & VCB parts name with picture
- 21 Answers
- 100641 Views
- ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro, I also Faced
- E-Mail Answers
Answer Posted / madhuranjan tiwari
1. under voltage
2.over voltage
3.over load
4.short circuit
5.earth fault
6.reverse power
7. Instantaneous (All are safety in ACB)
In VCB
Over current
Earth fault
Over Voltage
Short circuit
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
10 Mtr Hight of Lighting Arrestar how much area coverd??
I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??
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.
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks
what is the value of combined earthing in general electrical circiut?
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
define reflection method?
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?
if a number of plc s are there then how many modbus to be used
WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.
