In electric motors, according to the no. of compartments, The no. of input's (pantagraph collector's) were increased, why?
1 1953While starting a high capacity motor, it takes 6 times the full load current. Why it doesn't trip relay or CB's in that network?
4 4782How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks
1 3786HOW TO FIND OUT 1. LINE CURRENT, 2. PHASE CURRENT IN AN ALTERNATOR / TRANSFORMER WHICH IS FEEDING A I)STAR LOAD ii) DELTA LOAD, USING A CLAMP METER. NORMALLY WHEN WE USE CLAMP METER IN A DG SET THEN WHAT DO WE GET?? PHASE CURRENT OR LINE CURRENT.
Bhel,
13 28118WHAT IS THE THUMBRULE FOR FINDING OUT THE CURRENT CAPICITY OF A COPPER WIRE?? 2.5, 4, 6MM SQUARE ETC...
5 10046Post New Electrical Engineering Questions
how to get bearing & winding temperature of an induction motor?
why different series of vfds (like allenbradley)are used in industry ?
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is
What is the problem of internal failure in ship engine telegraph system norcontrol?
to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power
what is the minimum winding resistance of 30hp compressor, to run or to switch on
What is gross error?
what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?
What is the power factor of an alternator at no load?
what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated
hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.
Which standard we are following earthing resistance test
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
