Function of the equipment
Definition : Disconnection:
To ensure the safety of people involved the installation maintenance, the equipment or a part of the equipment must be disconnected from the power supply. A padlocking mechanism may be added to the disconnection device to procure more protection.
Definition : Breaking
The breaking function is mandatory to be able to break the power supply (on full load) in case of emergency.
Definition : Short-circuit Protection
To avoid accidental damages on the equipment, disturbance on the network (Unbalance), risk for the people security, the short circuit must be detected and the faulty circuit have to be quickly opened.
Definition : Overload Protection
Mechanical overloads and supply network faults are the most common causes of the overload withstood by motors. This results in a considerable increase in current drawn up by the motor, resulting in excessive temperature rise and greatly reducing motor lifetime. It could even lead to destruction of the motor. Motor overload must therefore be detected.
Definition : Switching
Its function is to make and break the motor supply circuit.
