electrical solenoid

The brake is turned on and off by an electrical solenoid.

Modern electronic automatic transmissions have electrical solenoids which are activated to change gears.

However, electrical solenoids cannot generate large forces unless supplied with large amounts of electrical power.

The stator blades moved from high to low position by an electrical solenoid and a stator valve, controlled by a switch on the throttle linkage.

Activated by electrical solenoid control, a trans-brake simultaneously engages the first and reverse gears, locking the transmission and preventing the input shaft from turning.

The pneumatic system consisted of a high-pressure helium gas storage tank, a regulator to reduce the pressure to a usable level, and electrical solenoid control valves to direct the central gas to the various pneumatically controlled valves.

Interlock devices may have an electrical solenoid which holds the key until an electrical circuit is interrupted; for example, the power supply for a high-voltage cabinet has been denergized, releasing a key to allow access to the interior of the cabinet.