| 摘要 |
The present invention relates to an electronic overload relay which uses a schmidt trigger circuit or a CMOS integrated circuit, wherein the electronic overload relay includes an automatic return circuit connected in parallel between the output terminal of a NOT-gate and the input terminal of a succeeding NOT-gate, an instaneous operation characteristic circuit connected in series between one terminal of a variable resistance and the input terminal of the succeeding NOT-gate, and a temperature compensation circuit connected in parallel to the secondary coil of the current transformer.
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