1. Basic concepts of the withdrawal and push mechanism
The withdrawal and push mechanism of the withdrawable switch cabinet refers to the fact that the drawer unit (also called the functional unit) in the switch cabinet can be easily withdrawn and pushed in to connect, disconnect and repair the circuit. The design of this mechanism makes the operation of the switch cabinet more flexible and convenient.
2. Working principle of the withdrawal mechanism
In the withdrawal mechanism, the drawer unit is connected and separated from the switch cabinet body through structures such as push rollers, positioning parts and spiral grooves. When the drawer unit needs to be withdrawn, the operator can push the push roller through a handle or an electric device to make the drawer unit gradually slide out of the cabinet along the track.
3. Working principle of the push mechanism
The push mechanism is opposite to the withdrawal mechanism. It is responsible for pushing the drawer unit into the switch cabinet body and making it electrically connected with components such as the busbar in the cabinet body. During the push process, the push roller interacts with the positioning parts to ensure that the drawer unit can be accurately pushed into the predetermined position.
4. Safety measures for withdrawal and push mechanism
In order to ensure the safety of the withdrawal and push mechanism, the switch cabinet is usually equipped with mechanical interlocking and electrical interlocking devices. These devices can prevent the closing or opening operation when the drawer unit is not fully withdrawn or pushed into place, thereby avoiding electrical accidents.
5. Maintenance of withdrawal and push mechanism
The withdrawal and push mechanism needs to be regularly maintained and serviced to ensure its normal operation. The maintenance content includes checking the wear of the push roller, positioning parts and spiral grooves, as well as cleaning the debris and dust on the track.
6. Application scenarios of withdrawal and push mechanism
The withdrawal and push mechanism of withdrawable switch cabinet is widely used in various power systems that require frequent operation and maintenance, such as power plants, substations, data centers, etc. These scenarios have high requirements for the reliability and flexibility of the switch cabinet, and the withdrawal and push mechanism can meet these requirements.
7. Development trend of withdrawal and push mechanism
With the development of the power system, higher requirements are put forward for the withdrawal and push mechanism of the switch cabinet. In the future, this mechanism will develop in a more intelligent, automated and modular direction to adapt to the power system's needs for efficiency, reliability and flexibility.
