Quote:
Originally Posted by kalee20
If you connect the transformer to a variable supply (with a voltmeter across the supply to be sure you're hitting it with full voltage) via a wattmeter, leaving the secondary completely open-circuit, the power drawn is virtuall all core (iron) losses. (The primary current is relatively low, and secondary currents are zero, so winding losses are negligible).
|
Not sure about this as the primary resistance will cause very significant losses.