Answer Posted / karthik.$
"NO" means normally open that means, the corresponding coil
is not energized it will be in the open condition. it will
closed only the condition satisfied."NC" means normally
closed condition if the corresponding coil is energized it
will open ... The NO & NC element and contact are normally
used in control circuit and the PLC LADDER LOGIC....
| Is This Answer Correct ? | 36 Yes | 4 No |
Post New Answer View All Answers
IF ANYONE HAVE ANY QUESTION ASK ME AT MY MAIL anmol.bhardwaj5@gmail.com
How can maintain our H.T. motors used in cement plant. please send me procedure.
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
If short circuit ratio is high is it bad or good for a machine then tell the reason...
What is d main advantage of using double circuit 3 phase transmission ?
can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??
explain with diagram how to protect transformers and substations from over current with help of CT's?
Why we find the sensitivity for the CT's to check?
HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?
For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
What is a system?
do we use neutral grounding for resistive balanced load? if we use what happen?
