When the DC current transformer under test has analog voltage output, as an alternative of measuring error method, it can be tested by double-meter method. The output of the standard DC current comparator and the DC current transformer under test are defined according...

The field test of DC current transformer is helpful to find out the possible faults and hidden troubles of the measuring and monitoring equipment in the converter station.  It is of critical importance to ensure the safe and stable operation of the converter stations...

High-Voltage Direct Current#Back to back. High-voltage direct current (HVDC) system is an efficient and low-cost method for long-distance power transmission. Its main characteristics are long single-return sending distance, large output capacity, ultra-high voltage...

Current transformer is based on the principle of electromagnetic induction will be the primary side of the large current into the secondary side of the small current to measure the instrument. The current transformer is composed of a closed core and a winding.  Its...

(1) Optical current transformer (Oct) is a current sensor which is made of optical elements, such as optical glass and all optical fibers.  (2) air core coil current transformer. Also known as Rogowski Coil current transformer. Hollow coils are often made by uniformly...

The ratio of current transformer should be selected according to the calculation of primary load current IC.  Current transformer primary side rated current ratio (such as 20,30,40,50,75,100,150,2 A / C) and other specifications, the secondary side rated current is...