Pincer-shaped standard current transformer and working method thereof

The invention belongs to the technical field of current transformers, and particularly relates to a pincerlike standard current transformer and a working method thereof.The pincerlike standard current transformer comprises a first shell and a second shell rotationally connected with the first shell; a semi-annular hollow cavity is formed between the first shell and the second shell and is divided into two layers of hollow cavities through a separation plate; two first winding cores are arranged in the two layers of hollow cavities of the first shell, two second winding cores are arranged in the two layers of hollow cavities of the second shell, and induction coils are wound on each first winding core and each second winding core; the induction coils on the first winding core and the second winding core on the same layer are communicated, a toggle switch is arranged on the induction coil on the first layer or the second layer, and a rotary switch is arranged at the joint of the first shell and the second shell