what is threshold voltage for a relay???what does it
exactly means ?whats its value in our indian transmission
system say 11kv feeder RMU relay

Answer Posted / felixraj

its a operating voltage(level detector). normally it will be
5 to 6 volts in static relays

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1350


please send previous exams question papers

1408


1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

1608


How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

1894


solar energy light efficiency & disadvantages?

1575






I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1373


Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

1756


Name the component u would expect to find in a switchgear assembly?

1604


why constant voltage transformer should be start without load? and if started then what will happen?

1624


what is charger supervision and control supervision?

1537


what are carbondioxide and dcp used in fire extinguishers

1646


What is difference between mcb and mccb.

654


Why transformer used in UPS??

1048


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1412


hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.

1593