1. Product overview
The transformer generates a lot of heat in the process of operation. If the heat can not be effectively and timely sent out, the temperature of the transformer body will be too high, which will cause serious damage to the body, and then affect the normal operation of the whole power grid. The air-cooled control cabinet can quickly and efficiently reduce the temperature of the transformer body by controlling the operation of the fan and oil pump of the transformer cooling system. It is an indispensable auxiliary control system for large power transformer. The intelligent air cooling control cabinet is an intelligent switching equipment of cooling device, which takes PLC as the core and integrates data acquisition and analysis, operation control and protection of transformer cooling system.
2. Product features
Reliability: all imported relays are adopted and unique motor protection circuit is adopted. When any motor fails, the system only cuts off the fault motor, and the rest fan motors operate normally, which improves the cooling efficiency of the air cooling control device in high temperature season, and overcomes the defect that the whole set of fans must be removed when any motor of the air cooling device fails.
Flexible control: hf-flg programmable control box can set and start multiple groups of air cooling (coolers) according to the time setting, which can avoid the impact current generated by simultaneous starting; at the same time, it can realize the automatic switching between working, auxiliary and standby, and make full use of each air cooling (cooler) to prolong the service life of the motor. In addition, the logic program can be flexibly modified according to the special requirements of users.
Scalability: PLC programmable controller can easily expand the I / O module, in the field can easily expand the function of the control box.
Communication function: hf-flg PLC control box can be connected with display terminal, printer and other peripherals through communication interface. Timely reflect the operation of the cooler to the control room, so as to monitor the operation of the cooler and maintain it in time.
Network characteristics: hf-flg PLC control box can realize the communication networking requirements between multiple PLCs or between multiple PLCs and a computer, thus forming a multi-level distributed control system to meet the requirements of modern intelligent power plants and intelligent substations.
