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  • Power Springs and Pre-Stressed Power Springs (Conpower (R))
    Power Springs are formed by winding strip material on an arbor and into a case or retaining ring. Power springs store and release torque through a central arbor or through the case that it is retained in. Pre-stressed power springs (Conpower (R)) undergoe additional processing to yield
  • Springs
    assemblies, and constant-force springs. Helical extension springs are most common. Drawbar spring assemblies are useful when a fixed stop is required. Constant-force springs are similar to power springs except they are loaded by pull rather than twist. Retaining rings and garter springs push or pull
  • Spring Arbor University - Case Study
    New technology has allowed many organizations to save money and provide a more efficient communications system by implementing IP Telephony systems. Combining both telephone and data communications over the same local network requires dependable uninterruptible power protection. Spring Arbor worked
  • Water Power Plant, Northern Power Systems
    mph). At wind speeds higher than 25 m/s (56 mph) the rotor is stopped and held by Dellner Brakes model SKP 95-27 spring applied, hydraulic released disc brakes operating on a ø1150 mm (45.3 in) brake disc. The 115 bar (1668 psi) of hydraulic release pressure is provided by a hydraulic power pack
  • Getting up to speed with wrap-spring clutch/brakes
    No-slip clutch/brakes keep loads and drives synced up. A tape nip uses a motor and belt drive to power the input hub of a wrap-spring clutch/brake. The tape accurately pays out in increments determined by the number and location of stops on the stop collar. Wrap-spring clutch/brakes work at speeds
  • Pulse and Hold Power Management
    that the force to power ratio increases by a factor of 3-4 as the unit moves towards the fully energized position. Utilizing these characteristics of solenoid actuators, the "Pulse and Hold" technique can hold a pinch valve in the energized state at reduced power with respect to applied power required
  • Spring Return Electric Actuators Meet Fire Standards for Tunnels
    with mechanical springs that close (or open) the damper upon loss of power at the actuator. Further, the motorized dampers must function at elevated temperatures to be effective. The ProMation PA series of spring return quarter turn, fail-safe electric actuators successfully performed a high temperature
  • Case Story- Wind Power Plant
    mph). At wind speeds higher than 25 m/s (56 mph) the rotor is stopped and held by Dellner Brakes model SKP 95-27 spring applied, hydraulic released disc brakes operating on a ø1150 mm (45.3 in) brake disc. The 115 bar (1668 psi) of hydraulic release pressure is provided by a hydraulic power pack
  • Clutch/brake chops blade power
    , with a pulley attached by six leaf springs, matches rotor rpm in about 0.3 sec. The pulley then runs drive belts that turn the blades. Cutting electrical power to the coil lets the leaf springs pull back the armature from the rotor and into contact with a stationary brake shroud affixed to the clutch
  • Power Plant Thermography-Wide Range of Applications
    A Midwest nuclear power plant utilizes 345 kV oil circuit breakers (OCBs) rated at 2,000 amps with an interrupting capacity of 63,000 amps. OCBs are independent-pole, pneumatically operated breakers: air to close; spring to open. A hot spot was identified on the test tap cover of the A phase

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