WHAT IS A LINE CURRENT AND PHASE CURRENT

Answer Posted / king niki

These are measures in star delta runing mode of motors ..Line current measure from mail power supply and phase current measure when motor runs in delta mode......

Is This Answer Correct ?    11 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

1438


I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1213


What are the advantages and disadvantages of the dc motors?

617


Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1423


how electrical earthing maintenance done in industry?

1021






how to commissioning the genset with amf panel?

1888


can someone explain that how the speed of the protection system affects the fault level calculation?

1465


what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2015


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?

1659


how to calculate slip ring induction motor stator and rotor currents??

1716


In vapour absorption refrigeration machine fluids used are

707


HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?

3138


How maesure earth neutral value & how much maximum value value required in between earth & neutral.

1583


What is open loop and control loop systems?

687


What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1329