In case of Star Delta starter the motor intially will run
in star connection and when 80% of rated speed picks, the
motor change over to delta connection. With this star delta
connection we are able to reduce starting current by 1/3 of
DOL starting current and starting torque also.
Please Help Members By Posting Answers For Below Questions
explain maximum demand factor
in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter
How may I get the maximum current capacity for a
particullar size Alluminum or Copper cable if there is
compulsion to use?
why should the primary of transformer be connected in delta in
a heat run test?
hi,every one, i have to write the search paper on
"performance policy optimization" of NGN (next generation
networks). i need the material on this topic. can any body
help me. please tell me any useful site where the good
material is available and name of any reference book. it
should be a great help for me.
i m electrical engineer i want a cdr for migration purpose
so anybody have information about this then send me on
email@example.com try to me
how to find 5 kilo meter long under ground 33 kv cable
fault location if IR VALUE shows 0.05 M ohm @5000 volt.and
cable fault locator shows some time fault distance 3 kilo
meter ,3.7 kilo meter and some time 1 kilo meter? now how
to find the fault location that where is leakage.
note--it is tested with 5000 kv megger and insulation
resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t.
what is the meaning of b+, w+? explain;
how to calculate the lightning arrester conductor @ no of
earth pits required
what is conductor copnstant of ab cable
Can double compression glands be used with regular cables?
How to do the REF Stability test for power transformers in
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8%
HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
Explain about 3 phase motor fault current calculation with