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Which type of motor is used in trains, what is the rating of supply used explain working principal?
how to calculate the size of the HT cable
Name the test signals used in control system
what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?
Is it possible to connect a safety device in to parallel?
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
what is effect of length of air gap on performance of dc motor and generator?
What is meant by derating factor?
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?
can we use NPT glands in LT panel
Why do we need interlocking in a HT metering or Ring main unit switchgear?
what will happen if frequency is below 50 hz?
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
For overhead protection we use which transformer?
