why core losses and copper losses does not depend on power
factor?
Answer Posted / prabhakar jha
core loss is a variable loss in the core.due to alternating magnetic flux educed in core. copper loss is a constant loss its not depend in load & unload...
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
how we design a pannel to start 10HP motor with the help of star delta starter?
what is thresold of perception
1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)
how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)
33kv substation lay out details & line to line & line to earth measurements
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.
the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?
how many joint can done in HT line and what is life of the joint
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
HOW TO WORK A VFD?SAY SIMPLE METHOD
how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
What are the advantages and disadvantages of open loop control system?
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?