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What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?
1938What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?
2048Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.
1972What are the effects of armature reaction on a DC machine and discuss the various methods to reduce the effect.
1 4025Post New Electrical Engineering Questions
- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it
how we do Vector group ,magnetic balance and tap changer test in Transformer?
What is relation between transmission lines & Communication lines ?
i have a 1500kVA transformer what is the kWH meter i need to use?
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
why cable i burning without tripping. how can protect led street lights
why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?
what is booster? and how it is connected in a circuit?
WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.
what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.
i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.
What is the difference between indoor and outdoor transformer
can we conduct the swineburne's test on a dc series motor? why?
