It is often seen that our mains utility power supply fluctuates to a large extent from the specified range. Presented below a DIY “do it yourself” voltage stabilizer for 230 utility with readymade electronics cards. All that one has to do is to get the transformer made as per the data are given in the table and then get a suitable enclosure to house all the items to give it a finished look. Input AC Voltage range of 140V to 280V AC. Regulated output voltage to ensure voltage in range 200 -245 VAC.Voltage correction within 10-20 mSec. Relay operation near zero crossings of current to ensure reliability and fault-free operation. Intelligent Output Time Delay for protection of load connected. Mains under voltage and over voltage cut off to protect the connected load. ( U/V – <175V , O/V > 250V)…
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