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Registered Member #2499
Joined: Thu Dec 03 2009, 10:18AM
Location:
Posts: 1
Hey guys,
I'm stuck, i alredy know how to find the current in an Induction transformer, # of turns on primary coil/# of turns on Secondary coil, but, is there any formulas known to calculate the Voltage output and the Resistance produced by the Induction Transformer...If so, keep it simple, im only new.
Registered Member #2463
Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
I read this several times and it seems to be a question about a current transformer (c/t). The secondary circuit is limited in voltage by the burden resistance which is the drops across the various instruments,ammeters or relays. Large c/t's can produce hazardous voltages if the secondary is accidently opened. The burden at the rated secondary current, 5 amps, for example determines the accuracy for metering. Consider the secondary a constant current source. A 200/5 c/t will produce 1 amp with 40 amps in the primary. The voltage will range from 0 (short circuit) to 1 amp * secondary circuit external resistance. R instead of Z used for clarity.
Registered Member #1451
Joined: Wed Apr 23 2008, 03:48AM
Location: Boulder, Co
Posts: 661
Are you talking about a simple transformer, such as used in power supplys? In that case the voltage is proportional to the ration of turns. 100:100 will output the same voltage as the input. 200:100 will output half the input. In this case google will help a LOT. There's a bunch of easily accessible info out there on basic transformer physics.
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Finding Voltage and Resistance Output in an Induction Transformer
