Max. counter system for three-phase AC supplies - uses thick film or printed circuit technology for economy and compactness

摘要

A maximum counter for household three phase alternating current supplies consists of a Ferraris circuit and an electronic maximum circuit with an impulse detector, an indicator and a power supply. The combination of Ferraris and maximum counters is fitted into the standard housing hitherto fully occupied by known Ferraris circuits and without additional cost. The electronic maximum counter circuit is in the form of thick film circuits on ceramic substrate or of a printed reduced assembly cost. The impulse detector is mounted in the thick film substrate or printed circuit board and is automatically correctly positioned by suitable guides.