TNC DC Magnetic Biasing Monitoring System

      TNC DC Magnetic Biasing sensor, use open-loop-type ferromagnetic circuit and work principle of magnetic balance hall, accurate measurement of large high voltage power transformer neutral conductor grounding end dc partial magnetic quantity. DC Magnetic Biasing sensor will be measured the edge partial magnetic current signal directly convert linear scale output 4~20 mA standard signal. The sensor has the good original, deputy edge insulation isolation performance, easy installation and maintenance, less power and frequency response wide, reaction speed, strong anti-jamming capability and so on. Apply to DC Magnetic Biasing signal collection, show on the signal transmission and application or distant.




      • Online monitoring transformer neutral line dc current real-time numerical; And as a remote measure sent to the         control room, the remote measure rate more than 1% when strain a transmission;

      • According to the monitoring of the DC Magnetic Biasing to the results of the magnetic directly to the operation of         the transformer, vibration analysis, judgement and winding tighten force core state;

      • Set transformer neutral line the dc current limit alarm function and delivered to the control room;
      • For transformer neutral line dc current set numerical wave record function, timing sampling, the data storage in the         historical database, save three months;

      • Sampling time for 1 S to 10 minutes adjustable;
      • Normal set in 20 seconds sampling one time;
      • Graphical interface display loose of windings situation