Ship's Windlass Control Principle
The control system for reversible symmetrical control system, motor starting, speed, stop and reverse to switch to master controller to operate.
Two-speed motor with low, high speed two, using direct start method. Three-speed motor with low, high speed, low speed direct start method, high level required after a start delayed start delay time is controlled by the time relay, can be adjusted in 1-3 seconds. Three-speed electric
Machines operate at high speed automatic transient overload switch to medium speed runs when load decreases,
To make the motor run ª¤ must revert to a high level on the master controller handle moves from third to
ª¤ II and then move on to the third.
Control line has the following protection
When the voltage disappears, disconnect the motor power supply to prevent the motor voltage is restored
After complex starts automatically.
Main circuit in the thermal relay ª¤ protects the motor winding hurried overload for a long time.
Control circuit fuse for short-circuit protection.
Three-speed control box with high level overload protection in the primary loop over current relay
GLJ (accompanied by a current transformer 2LH) ª¤ automatically when the motor runs at high speed over loading of instantaneous
Conversion to run on the stage.