The fully automatic AC voltage stabilizer depicted in the image can effectively regulate the mains voltage Ui between 160V and 270V, maintaining it within the range of 220±10%V. This device is specifically designed to handle a variety of household appliances, ensuring consistent performance across different loads.
Relays K1 to K4 and transformer T are selected based on a 100W power load, providing reliable operation for common household devices. K1 through K4 use 4098 (DC9V) relays. The transformer core is crafted from high-grade silicon steel sheets, GEIB30-D310-0.35B, with a stack thickness of 30mm, ST=9cm², and an approximate power output of 100W. The turns-to-voltage ratio Tr is set at 5 turns per volt. Windings N1, N2, and N3 are made using Φ0.57mm (23#) high-strength enamel wire, totaling 129, 283, and 99 turns respectively. N4 and N5 are wound with Φ0.36mm (27#) high-strength enamel wire, comprising 1004 and 50 turns respectively. Resistors RP1 to RP4 are selected as WHW-1 type synthetic membrane potentiometers. VD5 is a 2EF102 (all-plastic, Φ5mm, red) LED. VD6 utilizes either a 2CW342 or 1N59958 diode. PV employs an 85L1-V300V type finished voltmeter. Other components are labeled as shown in the diagram.
This stabilizer not only ensures stable power supply but also enhances the longevity of connected devices by mitigating voltage fluctuations. Its robust design and precise engineering make it an ideal choice for both residential and small-scale commercial applications. Whether you're running a refrigerator, television, or other sensitive electronic equipment, this stabilizer offers peace of mind by maintaining optimal voltage levels regardless of external conditions.
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