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how to distinguish between ac motor and dc motor without seeing name plate of it.only seeing its getup look
3 10722when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?
1 2683why are we adopting 132kv,220kv for transmission rather than using 440kv at all transmission lines as it gives lower losses?
2 6748what is the difference b/w KVA and KW? the transformer are mentioned KVA rating and the loads are mentioned KW.why?
2 3522ii) 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]
2371iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]
1 2618Post New Electrical Engineering Questions
what kvrah y we need to take the readind of that
what do you mean by class PS CT and what are technical details needed for calculating it?
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
What products have you designed which have entered high volume production?
Name two low frequency oscillators?
What is meant by RVT and NDR ? expansion and details of it
Why colled 440V to 3-phase supply.
What was your role in the silicon evaluation/product ramp? What tools did you use?
how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters
How many types of circuit loads are there in a common electrical circuit?
Discribe type of fault in DOL and stardelta startor.
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
What are the advantages of speed control using thyristor?
I have a 380 KVA DG set. How can i find out 1. My Fuel Consumption per hr ? 2. Electricity produced in 1 Hr. ? 3. If load varies then how does it affect fuel consumption & electricity produced ? Please HELP !!! Really need an answer.
What must be the minimum distance maintained between 2 Generators as per International standards?
