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Zero-Crossing Voltage

2019-04-06
the zero-crossing voltage is not a voltage point but a voltage range that determined by the internal components of the zero-crossingrelay, which is typically very low and almost negligible. If the power supply voltage is below the zero-crossing voltage, the zero crossing relay will not be turned on; and if the voltage is beyond the zero-crossing voltage, the zero crossing relay will be in the on-state.