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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??
1 2419if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
1905Shall we use Dyn1 transformer in place of Dyn11 for motor application as a distribution transformer
1 2918From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?
1784What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
2658In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?
1732How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?
1825Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????
1 3099What will happen if the rotor circuit of a slipring I.M. is kept open & electric supply is given to its stator winding.
2 7351Post New Electrical Engineering Questions
What is gain margin?
What is transformation ratio what it describes?
What is Annunciation?
how to produsing geretor power
how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer
Why colled 440V to 3-phase supply.
Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)
What is the universal motor?
why any centrifugal blower draw more current in starting. consider id fan and fd fan?
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
What is boucholz relay and the significance of it in to the trformer?
What test must you do before powering up a circuit that you have been working on?
where does 22kv line starts
how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.
I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
