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  • CR4 - Thread: How the "ELCB & SOCKET TESTER" Work
    … ELCB detects the imbalance between the voltage/current supplied via the live wire, and that returned via the neutral wire, and operates a small solenoid interlock , releasing a mechanical latch , and the ELCB fully … … which open-circuits it, switching the power off rapidly.
  • DOE/USDA joint project to design and manufacture prototype equipment
    The eight interlock switches are closed when the four encapsulatingsystem doors are closed and latched , Whenany door is unlatchedor opened, DC voltageis removed from all solenoid and stepper motor control lines and AC voltageis removed from the AC strip plugged into the …
  • The control of hydro-electric plant
    S.I) Valve Controls and Position Indicators Solenoids for servo-motor pilot-valve operation may be either electrically-held or latched -in mechanisms, preferably the latter, to avoid risk of overheating short-time-rated coils or maloperation by the temporary failure of … Some solenoids are de-energized by limit switches on the valve travel, but if obstruc- tion prevents completion of the stroke the coil current may be perpetuated unless it is derived through a timing interlock .