CURRENT TRANSFORMER SYSTEM WITH CHARACTERIZATION

摘要

A current transformer system with characterization is disclosed. The current transformer system comprises at least one current transformer unit generating a secondary current output relative to a primary current input, and a characterizing circuit storing a set of characteristics measured under test conditions in a memory of the characterizing circuit which characteristics represent the relation between the primary current input and the secondary current output of the current transformer unit under various operating conditions, the characterizing circuit further communicating at least one of the characteristics via the communication interface to an onward device to allow dynamic compensation for any errors in the characteristics of the at least one current transformer unit at the device.

主权项

1. A current transformer system comprising:
at least one current transformer unit for receiving a primary current input to generate a secondary current output relative to said primary current input, said secondary current output being metered to an electronic device; and a characterizing circuit attached to said at least one current transformer unit and electrically coupled to a communication interface; wherein, the relation between said primary current input and said secondary current output of said current transformer unit under various operating conditions represent characteristics of said current transformer unit, a set of said characteristics measured under test conditions are stored in a memory of said characterizing circuit, said characterizing circuit being adapted to communicate at least one of said characteristics via said communication interface to said electronic device to allow dynamic compensation for any errors in said characteristics of said at least one current transformer unit at said electronic device.