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GOG
modified 7 years ago

Modified Frequency Relay

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01:19:49
This is a simple relay that detects over-frequency and opens the circuit, it is based on active high pass filter. Threshold frequency is 52Hz beyond which the led turns red and relay will open the circuit
published 7 years ago
kiani
7 years ago
Like your circuit,, maybe can be rxtended to detect under frequency too.
kiani
7 years ago
The amplitude of mains is 339 volt peak, 240v is rms.

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