Search results with tag "Voltage relay"

Relay symbols and device numbers; selection from IEC 617 ...

as standard for automatic switchgear by IEEE, and incorporated in American Standard C37.2-1979. This system is used in ... a voltage relay, an undercurrent relay, or any other type ... or for regulating equipment, in a multiple unit installation. Device number Definition

  Automatic, Regulating, Early, Voltage, Voltage relay