Ternary-form intelligent control cabinet of oil pumping unit

Disclosed is a ternary-form intelligent control cabinet of an oil pumping unit. The control cabinet includes a text display, a programmable logic controller, a solid-state relay, a solid-state contactor, a current detection module, a motor and a cabinet body. The text display is sequentially connected with the programmable logic controller, the solid-state relay and the solid-state contactor. The solid-state contactor is connected with the current detection module and the motor. The current detection module is also connected with the programmable logic controller. The text display, the programmable logic controller, the solid-state relay, the solid-state contactor and the current detection module are installed in the cabinet body. The ternary-form intelligent control cabinet has the characteristics of smooth and energy-saving operation, reduction of reactive loss, improvement of motor operation efficiency and intelligent judgment and long service life of the motor and the like and is widely applied to control engineering of oil field pumping.