what will happen if the secondary of current transformer kept open....11 10608
when giving a supply to wounded coil it will get magnetised, but the same is not if it is not wounded on a core..and it is getiing short....why.......3 2548
Can anybody tell me how to calculate(formula) earth flat size(for copper and aluminium).3 3986
why surge suppressor in vaccum circuit breaker and it is only in motor feeder why not in tranformer feeder?no surge suppresor in ocb in motor feeder?
What is mean by INRUSH CURRENT?8 9789
What is the use of core in the transformer?19 36038
how work a harmonics filter(L-C combition).
Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??
Dear all: Recently we got a question about Interface between PMS and SAP-PM.once we got a update message from PMS.we should set the deletional flag for functional location in SAP system.Is there any FM or BAPI to use?There are only functional location create and change provided by SAP. Best regards!
is there any role of power factor with frequency variation? and how we can manage the frequency variation?
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.
how withstand of hi-pot test outputs of transformer wire 2.5mm
What is rms value wher it is used??????????
Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
Is there any abbrevation for STUB in Stub bus protection
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?
Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points