alyas
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« on: January 08, 2010, 08:31:40 AM » |
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I have 2x 220V/110V 500W transformer.
I plan to connect in parallel the 110V outputs so I could get 1000W for my 110V Vacuum cleaner and Power Drill.
Wala bang masamang magyayari kung out of phase yung 110V outputs in parallel since hindi ko ma-check yung windings?
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The Philippine Electronics and Technology Forum
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« on: January 08, 2010, 08:31:40 AM » |
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Born2BeWired
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« Reply #1 on: January 08, 2010, 09:56:50 AM » |
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1. Connect just one ends of the transformer secondary's together, leave the other ends open. (i.e. connect the secondary windings in series) 2. Apply power to the transformer primary. 3. Measure the AC voltage across the two free ends of the secondary If the measured AC voltage is close to zero, the phasing is correct and you may tie the two free end together to complete the parallel connection. If it measured 220V, then swap the ends of one winding and repeat the test  |
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Electronics <- Once you got a taste of it, you will never get enough.
Insanity <- Doing the same thing, expecting different results.
Arrogance is directly proportional to Ignorance.
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Born2BeWired
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« Reply #2 on: January 08, 2010, 10:03:50 AM » |
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BTW, the previous method applies only if the secondary windings are isolated from the primary. If you are to parallel two autotransformers, simply apply power and then measure the AC voltage across the outputs of the two transformers. If the voltage is close to zero, it is safe two connect the two together to complete the parallel connection.  |
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Electronics <- Once you got a taste of it, you will never get enough.
Insanity <- Doing the same thing, expecting different results.
Arrogance is directly proportional to Ignorance.
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zer0w1ng
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« Reply #3 on: January 08, 2010, 10:17:18 AM » |
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Ako takot sa High Voltages. Warning! just follow sir B2BW procedure else a big EXPLOSION could happen if the 110V secondary is paralleled and out-of-phase.  And be extra careful for non-isolated ones! |
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ccasiser
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« Reply #4 on: January 08, 2010, 10:21:22 AM » |
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use Fuse for protection. just incase.
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alyas
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« Reply #5 on: January 08, 2010, 11:05:56 AM » |
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Thanks mga master. Basta involved na ang 110/220V takot na ako.
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KANGARO
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« Reply #6 on: January 08, 2010, 10:38:08 PM » |
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I have 2x 220V/110V 500W transformer.
I plan to connect in parallel the 110V outputs so I could get 1000W for my 110V Vacuum cleaner and Power Drill.
Wala bang masamang magyayari kung out of phase yung 110V outputs in parallel since hindi ko ma-check yung windings?
Loading Considerations When Paralleling Transformers...Equal Impedances—Equal Ratios—Same wattages |
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dan.enriquez
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« Reply #7 on: January 09, 2010, 12:19:32 AM » |
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Loading Considerations When Paralleling Transformers...Equal Impedances—Equal Ratios—Same wattages
same type and specification. |
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"Ang Taong Walang Tiwala Sa Kapwa Ay Wala Ring Tiwala Sa Sarili" - ate mwah
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tony
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« Reply #8 on: January 09, 2010, 06:56:55 AM » |
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> Ako takot sa High Voltages.
in this case, pwede ka gumamit ng 6volt ac source, this time connect your two secondaries to 6 volts to supply those windings...
then follow the steps mentioned by born2bewired....sa "primary" ka naman magcheck...
at least walang panganib ng shock...you should get the same results kung tama ang phasing mo...
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in electronics, as in everyday life, there is always a reason for doing things...and if you can not explain why you want to do what you are about to do, better stop or else magic smoke will come out, safety first is the best policy here.....kuha mo?
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ian23jess
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« Reply #9 on: January 14, 2010, 07:01:12 PM » |
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use Fuse for protection. just incase.
yan ang sinasabi ko! huh bilib talaga ako syo master ces!!! madami ka nyan diba? he he he nasan na ung fuse natin na tinatago mo ung sunog na ang bahay ang fuse hindi pa? he eh eh pwede rin po ckt breaker para push to reset ka nalang |
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kinyo
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« Reply #10 on: January 16, 2010, 10:57:06 PM » |
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in case of different wattage ratings, their per-unit impedances should be the same so that load sharing would be proportional to their respective ratings |
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drin_pogi
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« Reply #11 on: March 10, 2010, 10:40:59 AM » |
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Posible po ba i-parallel ang output ng PSU ng computer? same brand same wattage? 12 volts po.  or Posible rin ba magparallel ng stepdown transformer? 12 volts din, 12 amps? .. gagamitin ko sana sa high power amplifier.  |
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n!xau xixo
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« Reply #12 on: March 10, 2010, 10:21:13 PM » |
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^ pwede po..
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iyo karpo
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« Reply #13 on: March 12, 2010, 11:22:16 AM » |
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I have 2x 220V/110V 500W transformer.
I plan to connect in parallel the 110V outputs so I could get 1000W for my 110V Vacuum cleaner and Power Drill.
Wala bang masamang magyayari kung out of phase yung 110V outputs in parallel since hindi ko ma-check yung windings?
parallel connected transformers always have circulating current both in primary and secondary windings. |
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The Philippine Electronics and Technology Forum
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September 04, 2008, 08:37:58 AM
