After continuous verification, improvement and verification, and improvement, the function of the imitation Weitu cabinet is also constantly improved, in other fields of science and technology upgrading and innovation, but also constantly into the production technology of the imitation Weitu cabinet. So what are the security protection functions of the imitation Weichart cabinet?
Low voltage circuit breaker protection function: low voltage circuit breaker in the circuit in addition to play a control role, but also has a certain protection function, such as overload, short circuit, undervoltage and leakage protection.
Short circuit protection: composed of internal spiral conductor and armature; Overload and overcurrent protection: composed of bimetal sheet and mechanical release device; Loss of pressure protection: it is composed of loss of pressure coil, armature and mechanical release device.
Isolation switch protection function
Safety of maintenance personnel: During the maintenance of electrical equipment, an electrical separation is provided and a visible disconnect point is used to ensure the personal safety of maintenance personnel.
Short circuit protection function: load switch has the ability of connecting or breaking load current and certain short circuit protection function under non-fault conditions.
Bus safety protection: in the open position of the circuit breaker, only the isolation switch on the bus side can be closed before the isolation switch on the line side. This kind of connection not only prevents pulling and closing the disconnecting switch with load, but also prevents illegal operation in violation of the operating principles of switch and switch.
Load switch protection function
Generally equipped with a simple arc extinguishing device, but its structure is relatively simple. The picture shows a pneumatic high-pressure load switch, its working process is: when the brake, under the action of the brake spring, the main shaft rotates clockwise, on the one hand, through the crank slider mechanism to move up the piston, the gas compression; On the other hand, through the transmission system composed of two sets of four-link mechanism, make the main knife open first, and then push the arc extinguishing knife to open the arc contact, the compressed air in the cylinder through the nozzle to blow out the arc.
The security protection function of the imitation Vito cabinet is not a single component, but many components cooperate with each other. Some components have the same or similar protection effect. The combination of the two components adds a safety protection insurance. More content to this www.tongyuhengcheng.com consultation!