What Is Transformer Impedance ?
Answers were Sorted based on User's Feedback
Answer / atul
Percentage Transformer Impedence is the Voltage drop on the
full load due to the winding resistance and leakage
reactance express as a percentage of rated voltage.
percentage Impedence = Impedence voltage/Rated voltage
*100
Is This Answer Correct ? | 32 Yes | 12 No |
Answer / giri
Transformer percentage impedence is the percentage of
primary voltage rating of the transformer required to drive
secondary rated current when secondary is shorted.
Is This Answer Correct ? | 26 Yes | 12 No |
Answer / sujata wagh
Transformer impedence is the voltage drop on full load due
to winding resistance and it express as % impedence.
% impedence is measured during short circuit test.
forluma to calculate % impedence is =
% impedence = impedence voltage*100/rated voltage
where impedence voltage is the voltage applying at one end
for full load corrent, while the other shorted is shorted.
Is This Answer Correct ? | 12 Yes | 2 No |
Answer / sabareesh kumar.b
Tell the correct answer for IMPEDANCE..............
Is This Answer Correct ? | 5 Yes | 3 No |
Answer / hussaini dangambo
The percentage impedance of a transformer is the volt
drop on full load due to the winding resistance and leakage
reactance expressed as a percentage of the rated voltage.
It is also the percentage of the normal terminal voltage
that can be applied to circulate full-load current under
short circuit conditions.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / piyush rana
% Impedance is the primary voltage at which the rated
current flows from short circuited secondary winding.
Is This Answer Correct ? | 0 Yes | 0 No |
what is the requirement of commutator in a universal motor?
what is a relation of energy in electromagetic field
how we select the mva rating of the circuit breakers?
upto how many load can v connect to stabilizer which is used for tv
What is the difference between Busbar Chambar, MCCB board and MCB Board? How to choose to use which one in the system?
why would amp draw on neutral wire be as much as amp draw on the hot leg.
Relation between magnetic field strenght and magnetic induction is a) Voltage b) current c) Speed d) tarque
i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
what is the difference b/w UHVDC and HVDC(LIGHT)?
We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.
My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?