Intelligent testing device applied to routine test of transformer substation circuit breaker

The invention discloses an intelligent testing device applied to a routine test of a circuit breaker of a transformer substation, and belongs to the technical field of routine tests of circuit breakers. An instrument wiring terminal, an opening and closing logic selection matrix relay module, a circuit breaker terminal box negative voltage sampling monitoring unit, a circuit breaker opening and closing resistance measuring unit, a central processing unit, a loop resistance testing unit, an automatic take-up reel and a wireless and wired connection unit are arranged in the box body; a direct-current energy storage voltage conversion and alternating-current inversion unit and a battery module; and an upper computer is matched with the box body for use. A strong current signal and a weak current signal are thoroughly isolated, the risks of electric shock of personnel and damage to equipment and instruments are greatly reduced, meanwhile, the device can directly upload test data, waveforms and the like to a remot