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how a vibration switch's high signal will going to trip the motor? can u explain with some examplesand wiring diagrams?
1 5469In a parallel circuit dc circuit with two resistors, if you know the voltage, amperage, and one resistors ohms, what formula is used to find the second resistors ohms?
6 8027why heat produced at junction of two different conductor. what care should be taken to minimize it.
11 18273What is the difference between voltage transformer and potential transformer?
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38 97725Post New Electrical Engineering Questions
Why use in ht motore
How can calculate the rating of a alternator for a given specific load with formula
Difference between a pilot wire and a normal conductor?
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
How to calculate capacitor bank size at a load 800kVA.
What products have you designed which have entered high volume production?
What is industrial plc
working principle a.v.r. ?
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,
I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
why co incidence factor considered in transformer sizing?
Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed
Why do power lines not short out when they fall into water?
PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.
