Overload protection circuit for consumer - uses relay as threshold switch, to control timing circuit,申请号FR19760028837-传众专利搜索

Overload protection circuit for consumer - uses relay as threshold switch, to control timing circuit

申请公布号：FR2326064(A1)

申请号：FR19760028837

申请日期：1976.09.24

申请公布日期：1977.04.22

申请人：

LANDIS ET GYR SARL

发明人：PATRICE MACQUAIRE

分类号：H02H3/033;H02H3/06;(IPC1-7):02H3/08

主分类号：H02H3/033

摘要：<p>The overload protection circuit prevents a load consuming more than the power permitted by the electricity supply authorities, to avoid the fire associated with such an excess. A transformer is connected between the mains supply and a relay. The relay acts as a trigger and controls a time circuit supplied from the mains. A second contact (7) of the relay switches off secondary loads. The time circuit comprises a capacitor (13), a threshold switch (17), a diode (15) and a resistor (16). The capacitor is connected over the second contact to the phase line and over the diode and resistor to the neutral line.</p>