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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: please teach me... posted by cloudwalker on September 14, 2016 at 14:50:15:
"noisy motor"? What motors found in our homes today do you consider noisy?
I would like to understand better how power conditioners work.. What you are implying is this…copper wires are used in generating electricity…that power is sent to a switchyard where the voltage is increased and sent miles to substations using aluminum wire…at the substation voltage is reduced and sent to transformers where it is again reduced to be sent to individual homesThe transformer that feeds your home, and maybe 3 to 5 other houses, is an isolation transformer. You can pretty much discount any noise found on the primary feed side of the transformer.
Most of the AC, EMI/RFI / Harmonics noise found in our home is created by a piece of equipment or appliance found in our home. It can be caused by many things.
Examples:
Desk top computers
Light dimmers
Switch mode power supplies
CFL and LED electronic ballasts/transformers
Micro processors found in most appliances
Microwave ovens
Audio equipment such as digital equipment. Or equipment with switch mode power supplies.
Poorly designed VFD (Variable Frequency Drive) found in furnaces to control the speed of the blower fan motor.Poor and or corroded electrical wiring connections can cause AC noise.
Good example is a convenience outlet branch circuit that has 8 to 10 cheap residential grade duplex receptacles where the electrician used the device to make-up the branch circuit wiring connections in the outlet box using the quick stab in the back spring clip connectors. Add to those piss poor connections the poor contact pressure of the female contacts of the duplex receptacle that can cause noise on the branch circuit wiring depending on the load/s that are plugged into the cheap duplex receptacles.Do you have an older electrical panel that has aluminum branch circuit breaker bus rails? I have seen instances where a high current connected load to a branch circuit breaker has caused arcing at the connection of the breaker to the breaker bus tie connector. (Plug-in, plug-on breakers). Arcing causes noise.
The list can go on and on.....
Edits: 09/15/16 09/15/16
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Follow Ups
- RE: please teach me... - jea48 07:10:28 09/15/16 (9)
- RE: please teach me... - Tweaker456 13:24:19 09/15/16 (8)
- RE: please teach me... - Coner 20:01:15 09/15/16 (5)
- RE: please teach me... - Tweaker456 12:35:53 09/16/16 (4)
- RE: please teach me... - Coner 16:32:10 09/16/16 (3)
- RE: please teach me... - Tweaker456 23:00:33 09/16/16 (2)
- RE: please teach me... - JKT 15:49:47 09/17/16 (1)
- RE: please teach me... - jea48 09:44:47 09/18/16 (0)
- Most of the crap on the AC mains is generated by stuff plugged into the mains. NT. - jea48 15:11:13 09/15/16 (1)
- +1 n/t - tweakmenow 15:51:20 09/15/16 (0)
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