ELECTRIC SOLENOIDS

Brand Owner (click to sort) Address Description
POWERPULSE JOHNSON ELECTRIC INTERNATIONAL (UK) LIMITED UNIT 5, WOODSTOCK WAY BOLDON BUSINESS PARK, TYNE AND WEAR BOLDON NE35 9PF United Kingdom electric solenoids, solenoid-operated electric switches, actuators and contactors;POWER PULSE;
RG Richmeg Industry Co., Ltd. 2F., No. 953, Sec. 2, Chung-Ching Rd. Taichung Taiwan electric solenoids, solenoid valves, electromagnets, electric solenoid coils, electric coils, electromagnetic switches;RICHMEG;
RICHMEG Richmeg Industry Co., Ltd. 2F., No. 953, Sec. 2, Chung-Ching Rd. Taichung Taiwan electric solenoids, solenoid valves, electromagnets, electric solenoid coils, electric coils, electromagnetic switches;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method and apparatus for turbine overspeed protection, useful for steam and gas turbines, is disclosed. The apparatus comprises a spring-loaded rod held by a plurality of energized solenoids in an operating position any time the turbine's shaft rotational speed is less than a trip rotational speed set-point. When the rotational speed reaches the trip rotational speed set-point, both solenoids are de-energized and the spring-loaded rod moves to provide turbine trip. Increased reliability of the solenoids is provided by compressing the spring during the resetting of the rod with an additional electromechanical actuator and by using a plurality of solenoids, each of which is able to provide the force required to hold the spring in its compressed state.