Ion, I cannot tell you how much I appreciate your taking the time to explain this "Measurement" situation .[yes MH I acknowledge your pointing this out as well [and many others ]]
There MUST be a reason for testing with the clamp meter?,besides Deception ? ,Which I do not believe is the reason here!
Can you outline a test ,using the Mary Jo set up,that will put this to rest to your satisfaction ? A test where Input is established and undeniable?
OR?? Perhaps you can make some addendum's to this test protocol?
BITT COMPUTER MODELLING TEST ITEMS:
1. Make the Primary and (net) Secondary with the same wire gauge and the same number of turns so it will be a 1:1 transformer, i.e. Primary = 100 turns, S1 = 50 turns, S2 = 50 turns. 2. TEST: S1 + S2 (net)NO LOAD voltage = primary INPUT voltage. 3. Primary flux should be evenly distributed through NO LOAD S1 and S2. 4. Note and record Primary Current and Power Factor NO LOAD baseline. 5. Place S1 and S2 ON 100 ohm LOAD and note if Primary Current or Power Factor changes. 6. SOFTWARE TEST: Remove S2 from load and note S1 load voltage which must = 0 volts because S2’s flux path route now represents a lower reluctance route than S1’s ON LOAD high impedance route. 7. S2’s NO LOAD voltage must = Primary INPUT voltage because S2 is getting all the Primary flux. 8. REPEAT with 50 ohm, 25 ohm, 10 ohm, 1 ohm and shorted Secondaries. 9. If Baseline NO LOAD Current or PF change when placed ON LOAD increase Secondary Outer Core Area to reduce reluctance until there is NO CHANGE from NO LOAD Baseline to ON LOAD shorted Seconaries. 10. Replace Secondary Outer Core with HIGH PERFORMANCE Low Reluctance Permalloy of Superpermalloy etc. And note performance advantage (if any).
TEST NOTES: Test Date: __________________
1. Number of Turns: Primary = _________ turns, S1 = __________, S2 =__________ turns. 2. Primary Input Voltage: Primary = ______ Volts, S1 = ______, S2 = ______ Volts. 3. S1 NO LOAD Voltage = _____ V, S1 NO LOAD Voltage = _____ V, Flux Distribution: ________________ (even  uneven). 4. NO LOAD Baseline: Primary Current = ______ Amps, Primary Power Factor = ______. 5. S1 & S2 ON LOAD (100 ohms): Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. 6. S2 NO LOAD: S1 ON LOAD Voltage = ______ Volts. (Must = 0 Volts). 7. S2 NO LOAD Voltage: S2 = ______ Volts. (Should = Primary Input Voltage). 8. S1, S2 50 ohm load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. S1, S2 25 ohm load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. S1, S2 10 ohm load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. S1, S2 1 ohm load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. S1, S2 (shorted) load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. 9. New Secondary Core Area Increase: _______ %. S1, S2 (shorted) load: Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%. (NOTE; if primary current and PF do NOT change with a shortcircuit load they won’t change with lesser loads either). 10. New Secondary Core Material: ___________. Primary Current = ______ Amps, Current change % = ______%, Power Factor = ______, PF change % = ______%.
Chet
« Last Edit: 20101024, 18:45:26 by ramset »
