Please explain open transition and closed transistion
system in Star delta Starter?and also the state difference
of both?
Answer Posted / dave
worked for carrier a/c 35 years. in a standard open
trastion when charging from star to delta the motor
effectively slows momenatrily for a 1/5 of a scond. closed
traansition this does not happen ,the change from star to
delta is less noticeable.closed transiontion has a fourth
contactor and resistor bank to prevent that 1/5 of second
power loss to the windings .I need some wiring digrams of
closed transion staters to show the tecs how this works
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
Star Delta Diagram with full description
why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan
which fault is severe and why?between lll fault and lllg fault which fault is severe and y?
what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
how the CT and PT is connected in the circuit during testing of transformer explain with diagram
how to define tell me about self
what is the voltage between earth to neutral in lift.
How the capacitance og capacitor volatage transformer is decided?
1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
How can we calculate the motor frame sizes?
How to design pavement quality concrete by using C.R.C.P Method
What is Tachometer used to measure?
How RTCC panel is working and give single line diagram for RTCC with transformer?
How we can change the direction of rotation of Induction motor? Prove it using graphical