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line vltage of three phase distribution transformer is 433v and phase voltage is 250v,but we required 230v for domestic distribution,then how we reduce phase voltage of transformer
5 78841. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.
1980if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)
1891A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.
1 2080Post New Electrical Engineering Questions
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.
xfhnchncv?
sir i want previous entrance exam papers for written test
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
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com
What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?
Why neutral point is consider as zero potential?
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately
could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com
sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com
kindly send me 11KV MV motor differential protection procedure by primary injection method.
