Accessory for a plurality of direct heating device

专利名称：Accessory for a plurality of direct heating

devices

发明人：AMUNDSEN, AAGE申请号：EP86104516.9申请日：19860402公开号：EP0198339B1公开日：190830

摘要：1. Supplementary device for several electrical direct heating devices (1, 2), oneof which as main heating device (1) has a thermostat (1a), the supplementary device (3)containing a current sensor (3a, 3b) through which the current of the heating resistor (1b)of the main heating device (1) flows and the current sensor (3a, 3b) operating asemiconductor switch (3c) for switching on and switching off additional direct heatingdevices (2), characterized in that the current sensor is a current transformer (3a, 3b), theprimary winding (3a) of which is series-connected to the thermostatically regulated mainheating device (1) and the secondary winding (3b) of which is arranged in the controlcircuit of the semiconductor switch (3c).

申请人：SIEMENS AKTIENGESELLSCHAFT,SIEMENS AKTIENGESELLSCHAFT

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