Integrated small-signal output electronic transducer in the substation and the secondary device testing method

In the digital substation construction, small-signal output of the integrated electronic transducer used in low-voltage substation equipment, without the second conversion, with the wiring simple, space-saving, easy maintenance, easy to realize the advantage that it applies not only to digital substations, the same applies to conventional substations. In this paper, an engineering example, elaborated on the principle of such transducers, characteristics, and engineering applications should pay attention to the problem, and the type of transducer and the secondary device field test methods.