Australia's NOJA Power has released Relay 1.9, an upgraded firmware platform for its OSM series Automatic Circuit Reclosers (ACR). Among other enhancements, the firmware now includes Negative Phase ...

SAFETY interlocks, safety light curtains, and other safety equipment are the visible part of a machinery safeguarding system. As such, they receive the most attention. However, true safety goes well ...

The SQZ3 relay performs the following monitoring functions in three-phase networks at 400 V AC for phase sequence, phase failure and minimum voltage (adjustable, max. 70% of Vn). If one of the three ...

Abstract: The phase sequence arrangement of double-circuit transmission line on the same tower influences both three-phase unbalance degree of the line and direction judgment of zero sequence power ...

Abstract: Today, China has entered an aging society, and the issue of elderly care has become increasingly prominent. This article aims to realize the electrical control circuit design of a smart ...

Hybrid relays combine a mechanical switch with a solid-state switch, and they are set up in parallel to control a single load.