what is the VA(Volt-amphere)? define with calculation?
Is there any Flood lighting system which produces more light (More power consumption 1000W,400W etc.,), white light and restart immediately after power restoration ?
Find defination of KVA convert in to KW.
transform oil how going to act like ainsulation purpose
Is it necessary to carry out sheath test after cable jointing? If the value is zero of such instance , is it ok to energize the cable?
what will happen if any motor runs long time with star connection in400vA.C. system
i am swathi, b.tech 4th year. In smps(switched mode power supply)we are using diodes,mosfets,igbts for controling of current. And my question is why we did not use thyristors(scr)? it is also act as a switch,then what is the drawback of scr as compared to above transisters> if we use the scr,then what is happening ? plz give reply as soon as possible bcoz i am doing project on smps. plz frnds i want ans for that. if anybody know the ans plz send to my e-mail id /swathi.tadakapally@gmail.com/
what is accuracy ? in any meters , coils accuracy . how can u defined that ?
wow to calculate the transformer rating(KVA)
What are the types of windings according to the construction?
Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?
WHAT IS MODULATION AND NEED FOR MODULATION ?
state basic meaning of 'INDUSTIAL AUTOMATION'?