Controller (English name: controller) refers to the change in booking order of main circuit and control circuit wiring and electrical resistance change circuit to control the motor start-up, speed control, brake and reverse the main unit. By the program counter, instruction register and instruction decoder, timing generator and operation controller, it is the decision-making body "command, coordination and command of the entire computer system operation is completed.

Generator set control automation, has experienced the relay control, PLC (programmable logic controller) control and intelligent control three stages, starting at the end of the last century gradually controlled by microcomputer and electronic components of intelligent controller, will be very complex peripheral circuit integration in a module, greatly simplifies the control circuit, reliability has been improved, now the controller designed tend to be more intelligent, more human, there are also some generator manufacturers in the production of small gasoline engine all-in-one, practical and convenient.

The system consists of: the mesh cabinet consists mainly of the knife, circuit breaker and the relevant control elements, and each unit is equipped with a parallel machine control cabinet. A circuit of the mesh cabinet, the brand of the load switch, the type specification and the outer structure of the electric cabinet such as the attached drawing.

    1. the automatic degree is high, the grid cabinet of the unit put into operation, cut out of the running, the synchronous closing, and load distribution are unloaded automatically, the electricity power supply system to realize there is no regulation.

    2. It is easy for operators to grasp the method of use.

    3. comprehensive protection function: reverse power protection, over-current protection (completed by a circuit breaker), generator fault break-brake protection, overload protection, independent of the switch), voltage fault protection, abrupt stop function. There are other protections for customers to choose to configure. Dual power automatic switch device and an automatic controller, automatic controller and points since the vote from complex, since the vote from the complex, the grid - diesel generating sets of three, respectively connected to the device constitute different control mode and function of automatic switch. Suitable for ac 50Hz, rated working voltage to 400V and the following two power supply system. This switch with electric interlocking and mechanical interlocking double protection, at the same time, more than any one phase in the three-phase power supply overvoltage, undervoltage, including the over-current protection circuit and short circuit protection function. It is widely used in high-rise buildings, hospitals, malls, Banks, chemical industry, military facilities, etc.