A Transformer Online Monitoring Sensor
A technology of sensors and transformers, applied in the field of online monitoring of power equipment, to achieve the effect of improving efficiency
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[0038] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0039] figure 1 It is the structural diagram of the transformer on-line monitoring sensor provided by the present invention. Such as figure 1 As shown, the transformer on-line monitoring sensor provided by the present invention includes a Rogowski coil current measurement module, a zero magnetic flux compensation module and a signal processing module. Wherein, the Rogowski coil current measurement module includes a ring core 1 , a secondary coil 2 wound on the ring core and a measuring resistor 3 . The zero-flux compensation module includes a compensation coil 4 wound on an annular iron core, a flux measurement sensor 5 and a compensation circuit 6 . The transformer online monitoring sensor is installed on the lead...
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