The working principle of time relay
When the coil is energized, the iron core attracts the armature and the pallet and moves down, and the contact is turned on or off.
The piston rod and lever are slowly lowered under the influence of the damping effect. After a certain period of time, the piston rod descends to a certain position, and the contact is pushed by the lever to act. The normally closed contact is in the open state, and the moving contact is in the closed state; when the coil When the power is off, the relay relies on the action of the spring to recover.
