Answer / shraddha

if ac supply accidently given to dc series motor, for first
half cycle it run but another negative half cycle it should
be run opposite direction but due to rotor inertia it will
not happend but there is opposite force excerted on rotor &
motor stop this process require fraction of second so it
look like its not running.so motor will not running.

Answer / satyaveni

nothing will be happen.with some modificatios the de motor
works as an ac motor

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

0 Answers  

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what is a diffrence between MCCB, RCCB, MCB, & ELCB ? what is rated current e.g. on motor name plate indicated that is rated curent? what is full load current? If we run D.C. motor with mechanical coupling and we measure voltage on terminal it shows voltage or not ? same in AC also possible ?

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why CT out put is 5 what ever the primary current.

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Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

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Can transformer develop three phase power from a single phase source?

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How the over load setting for HT Motors calculated-provided in Numerical Relay

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3 Answers  

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