2025.05.03 – Dictionary – Letter Z – My Diary

Zero-voltage switching
A method used in electronic switching devices (like solid-state relays) to ensure the switch is activated precisely when the AC voltage crosses zero. This reduces electrical noise, stress on the switching components, and extends the service life of connected loads.
ZW7 current transformer-operated overload relays
A type of overload relay that uses a current transformer (CT) to measure the current in a circuit and trigger protection mechanisms if the current exceeds safe limits. The ZW7 model is part of Eaton’s protection solutions for motor and circuit safety, offering precise control and coordination.

2025.05.03 – Dictionary – Letter Z