The necessity of European-style cranes with electrical protection devices
European-style cranes include ordinary gantry cranes, hydropower station gantry cranes, container gantry cranes and shipbuilding gantry cranes, with a wide range of applications. Most of the structure on the gantry crane is made of metal. If the electrical system on the gantry crane is not properly protected, it will not only affect the circuit device, but may also cause serious consequences.Therefore, in order to ensure the safety of equipment and personnel, the following electrical safety protection devices must be equipped on European cranes.
1. Power-off device: Mainly refers to the main isolation switch, the short-circuit protection device on the main power supply, the fuse circuit breaker, the main power supply loss-voltage protection device, the zero protection controller, the emergency power-off switch, etc., which are used to cut off the power supply. Ensure safety.
2. Overload protection: It is usually set separately. Now, overcurrent protection devices are generally used to avoid hidden dangers caused by the lifting load of the gantry crane exceeding the rated load.
3. Limiting device: Generally used to prevent excessive lifting and excessive winding of steel wire rope to avoid accidents.
4. other devices: such as channel port safety interlock switch, travel protection device, grounding protection device and so on.
