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Who picked up the same problem with load shedding and a funny noise.
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<blockquote data-quote="Den123" data-source="post: 908760" data-attributes="member: 13454"><p>Do you have an inverter or UPS in your home? Even if you don?t, your Neighbour?s may. After load shedding the batteries need recharging. On certain machines this can lead to a very poor current waveform (shape) drawn from the mains. This is referred to as harmonic distortion. It is very common, very real and becomes a bigger and bigger problem every day as we all purchase and use non-linear loads (almost everything in your house today, other than devices that heat ( iron, kettle, oven etc)). In your shared power box your neighbour?s Poor current waveform is easily effecting the voltage valve form for your feed because of impedance. That lose connection on the burnt breaker would have been a high impedance example. The noise may come and go depending on the high harmonic loads being used at the time.</p></blockquote><p></p>
[QUOTE="Den123, post: 908760, member: 13454"] Do you have an inverter or UPS in your home? Even if you don?t, your Neighbour?s may. After load shedding the batteries need recharging. On certain machines this can lead to a very poor current waveform (shape) drawn from the mains. This is referred to as harmonic distortion. It is very common, very real and becomes a bigger and bigger problem every day as we all purchase and use non-linear loads (almost everything in your house today, other than devices that heat ( iron, kettle, oven etc)). In your shared power box your neighbour?s Poor current waveform is easily effecting the voltage valve form for your feed because of impedance. That lose connection on the burnt breaker would have been a high impedance example. The noise may come and go depending on the high harmonic loads being used at the time. [/QUOTE]
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Who picked up the same problem with load shedding and a funny noise.
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