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Instrument transformer

Dec 07, 2016

PT(TV)/CT(AV):instrument transformer, is a special kind of transformer, divided into current transformer and voltage transformer, which is mainly used to isolate the primary circuit and the control circuit from the electrical, thus expanding the use of the secondary equipment(instruments, integrated security, etc.). Using PT/CT can avoid a high voltage / high current of a primary circuit directly into the secondary control equipment (such as: instrument, full protective devices, etc.), can also prevent the failure of the control equipment affect the operation of a primary circuit.