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As electromagnetic waves travel in space only one can happen absorption attenuation reflection refraction
4 9893directional relay is typically used to respond in fault condition who it can be used just as reverse power protection which purely senes direction reversal to operate a circuit breaker?
1 3324I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.
4 5350If I want to replace a 26KW Slip ring Motor with a Squirrel Cage motor & Drive (for a Hoist Application). How can I approximate the Motor & Drive HP required in new Setup.
1822
why does the array will be start on size 0?
why stress relieving of stainless steel is not preffered
is there any codal provision for soil cousion over the Hume pipe of Dia 1.2 m.
what should be the correct duration of slow firing of the coal based and biomass boiler?
What is the use of excitation table in digital electronics?
how to design and calculate materail quantity for concrete speedbreaker ?
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
Discuss steam engines. What is its overall efficiency ?
cement, sand, aggregate,reinforcement & concrete consumption per square feet in multi storeyed building
wat should be the main steps for qualifying gate.
why electron produce magnetic field when it is in motion?
what is active power & reactive power?
Haw to check conductivity of budbar
What is the exact formula for one weber of magnetic flux?
How will a tester be sure that He’s covered the entire functionality in his Test case and not missed out anything?
