(under subclass 307) Systems wherein the system includes a current limiting impedance and means to open and close a low impedance shunt circuit about the current limiting impedance, the shunt circuit controlling means being operated automatically in response to some condition.
SEE OR SEARCH CLASS
323, Electricity: Power Supply or Regulation Systems,
296, 298, for systems having a resistor which may be short circuited for controlling the magnitude of the current and/or voltage in a single circuit.
