in HVDC transmission system ,monopolar link has one
conductor usually a negative polarity and use ground or sea
return ?through negative polarity we could pass electricity
or not yes means how it is possible
iii) 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.
How do you determine the size of transformer radiators in a
how will calculate the safe starting current of 3-phase
squirrel cage induction motor?
For fixed primary voltage how does secondary terminal
voltage of a transformer change if the pf of inductive load
is raised from 0.7 to 0.9 with load current remaining fixed ?
give me atleast four differences between circuit and network
What happened ,If 3 phase clearance not maintained in 33KV
Line,11KV LIne etc?
What should be the Sandwitch type Al. bus bar capacity for
2 M.W.Gen. set, having continuous full load current- 3463
Amps,ambient temp.- 50 Deg. C., Required temp. raise-20
deg.C., it will run 24 hrs, 365 days on full load, required
Will an earth leakage trip be activated if the component or
wiring is faulty on low voltage equipment.Example An
electrical Cat Scarer placed in the garden and water gets into
how to calculate slip ring induction motor stator and rotor