A current transformer (CT) is a critical instrument transformer in electrical power systems that safely steps down high primary currents into smaller, standardized secondary currents (typically 1A or 5A) for measurement, protection, and control. Designed on the...

DC current transformer refers to the mutual inductance used in the conversion of DC current. It makes use of the non-linearity and non-symmetry when the iron core is magnetized by DC and AC current in the core coil.  It is mainly used to measure DC high current, and...

The electric power transmission consists of a rectifier station, an inverter station, and an intermediate transmission line. When the energy is sent back, the rectifier station acts as an inverter, and the inverter station acts as a conversion from DC to AC.  The main...

The safe and stable operation of the DC electric power transmission depends to a large extent on the protection and monitoring systems operating in all corners of the converter station.  And all kinds of high-voltage transformers and sensors provide a solid guarantee...

The DC field equipment of most converter stations are imported, the degree of localization is lower than the average level of the industry, and most of the key technologies are in the hands of foreign enterprises.  This basic situation directly leads to equipment if...

1. The variation preheats the DC current transformer, rises to the rated current value for 10 minutes, and then rapidly drops to any point in the measuring range, the error variation between the ascending and descending values shall not be greater than 1/3 of the...