根据继电保护和自动装置的不同要求，电流互感器二次绕组通常有以下几种接线方式： According to the different requirements of relay protection and automatic device, the secondary winding of current transformer usually has the following types of wiring: ⑴完全（三相）星形接线； (3 phase) star connection; ⑵不完全（两相）星形接线； The (two phase) star wiring is not complete. ⑶三角形接线； Triangle wiring; ⑷三相并接以获得零序电流接线； The three phases are connected to obtain zero sequence current wiring; ⑸两相差接线； Two phase difference wiring; ⑹一相用两只电流互感器串联的接线； The wiring of the series of two current transformers is used in the first phase; ⑺一相用两只电流互感器并联的接线。 The wiring of parallel between two current transformers is used in the phase 1 phase.