How many types of AC current?8 12892
As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??5 3078
what is the function of NAT & NAC contacts in breaker control switch (TNC)??1 14490
what is the difference betn earthed and unearthed cables which is commanly used why?2 4963
In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?2 8434
I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????1 3359
In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.970
what is the higest transmission voltage and generated voltage in india14 21317
I want to know the standards for earthing system as per IEC, BIS & IEEE.2 12838
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.1124
what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes
What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?3 25645
what is submersible pump?what is different between motor and sub motor?
sir i had plane to do some project with the base of hopkinson test in AC supply its possible
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
In convertor can we use rectifier thyristor in place of invertor thyristor with explain.
Generator,motor and alternator Working principal Please explain easily
how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
Why the moulded plug comes with domestic appliances instead of assembled plug like anchor, Vinay 5/15 A.
Any Electrical Engineering jobs?Please refer for interviews. Thank you
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
direction of tarbine& genrator
This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?
help me with the question that might be ask on the interview for technical position
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]