What is the power ratio between power in Star and Delta
circuit?
- 11 Answers
- 40057 Views
- ST Micro, I also Faced
- E-Mail Answers
Answer Posted / reshi
The power transformation ratio in the transformer is
1:1.Only the voltage and currents are subjected to
change.Pri MVA=Secondary MVA. Except to compensate for some
losses.
| Is This Answer Correct ? | 12 Yes | 11 No |
Post New Answer View All Answers
How to calculate VA rating for CT or PT or Control Transformer?
how to determine motor size for a fan application?
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
How we select the vector group of 3phase power transformer?
Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???
What is the phase relationship between the primary and secondary voltages of a transformer?
Write masons gain formula.
Usage of flywheel diode in relays
what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.
how to flameproof electrical motor on the shaft?
List the time domain specifications.
