hi friends how 3 phase converter functioning ?what is
working principle of rotory phase converter ?
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plz explain the snubber circuit unit
how step down and step up voltage is occured in transformer
If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.
What are the commonly used schemes for the bus zone protection?
what is basic difference betmeen normal & flame proof motor??
What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system
what is earthing transformer? draw the winding dia.of earthing transformer.
How to test lightning Arrester?
define reluctance motor & its operation ?whether its operating single phase or three phase ?
Explain Clearly Pahase and Neutral?