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if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?
1 2064if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?
1 3587-----------means a source which can supply a constant voltage to aload irrespective of the valu of load resistance.
2 4909What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?
1 3254how we calculate the knee point of a protection and metering CT and what is the testing procedure.
CS,
1 4695HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
1 2116Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir
1 4232why stay insulator is not used with stay wire for 11kv Lines. Whereas it is used for LT lines ?
2 14458Post New Electrical Engineering Questions
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
two way ckt diagram can be drawn by how many ways? give diagram
what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.
XYZ
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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in
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Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.
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sir i want previous entrance exam papers for written test
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what is meant by IGBT how they differ from tyristor ?
hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible
Define the overload capacity of the motor?
