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Mains frequency

Just checked the dynamic demand site and the frequency was down to around49.7 cycles almost down to the lower legal limit never seen that before
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  • Hi again I just took delivery of a new True RMS multimeter to replace my old one that is a bit knackered(like me) the new one has a frequency range so whilst playing with it I tried that out and according to it the mains frequency is actually really stable I looked at dynamic demand site and my meter at the same time and the readings did not agree so I'm thinking maybe the DD site has got problems   Maybe someone's plugged in a noisy  bit of machinery on the same mains as there meter my meter and grid watch seemed to agree
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  • Hi again I just took delivery of a new True RMS multimeter to replace my old one that is a bit knackered(like me) the new one has a frequency range so whilst playing with it I tried that out and according to it the mains frequency is actually really stable I looked at dynamic demand site and my meter at the same time and the readings did not agree so I'm thinking maybe the DD site has got problems   Maybe someone's plugged in a noisy  bit of machinery on the same mains as there meter my meter and grid watch seemed to agree
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