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Answer Posted / mayur
the current is changed by the resistence so fan speed changed
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how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me
kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased
ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.
Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?
Any one can explaination about calibration with rotating sub standards?
how to calculate the change over time for star delta starter for different KW motor?
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?
bsec exam syllabus (mis)
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
What are the components of feedback control system?
Why does the radius of armature is less than the radius of pole shoe?
DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?
how to calculate the breaking capacity of different breakers.
