In this episode we will see an old Polish voltage regulator type RN 300/1 manufactured at the UNITRA ZATRA Radio Transformer Plant in Skierniewice. Devices of this type were once used mainly to power TVs, and their task was to provide 220 V voltage, primarily in regions or places where the voltage in the electrical network was lower. The regulator operates with a primary voltage (in the supply network) of approximately 170 to 240 V. Even today, with the network voltage often exceeding 230 V, the regulator maintains a secondary voltage (output) of approximately 220 V. This can be useful - as in my case - when testing the operation of historic devices.
In one of the next episodes we will also watch the UNITRA ZATRA voltage STABILIZER, which should perform better than such a regulator in the event of frequent voltage fluctuations in the network. We will compare the structure of both devices there. A separate episode will also be devoted to a voltage regulator from the 1960s.
21 окт 2024