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how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
2882does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain
1971What effect of supplying stationary generator (800kVA) with 415V AC from 1500kVA transformer?
2 4704What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.
NFL,
2122The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.
2033Post New Electrical Engineering Questions
how we findout a ignater is faulty or not?
hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...
In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil
what is the voltage between earth & neutral in 3 phase electrical connection.
What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??
how can i reduce sparking without stepdowning the voltage
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
What is different between Circuit breaker and Isolater?
How to select transmission line type (i.e. 11kv or 33kv) for new established industries
How to select the proper VSD to operate high inertial load
Is any generator is developed which is operated with out diesal or other expensive source?
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
What are dependent sources?
