The TRATON-110 digital instrument transformer is designed to measure current and voltage in AC networks with a voltage class of 110 kV. TRATON-110 consists of an external sensor installed on the outdoor switchgear and an interface unit with the digital substation network according to the IEC-61850 protocol, installed in the control room building. Data transmission between the sensor and the interface unit is carried out via a fiber-optic communication line. The current is measured using an electromagnetic current transformer,
installed in the high voltage part of the sensor. The voltage is measured using a capacitive voltage scaling converter (divider). The measurement result on the high-voltage side is converted into a digital code and transmitted to the low-voltage side via a fiber-optic communication line up to 1.5 km long. Power is supplied to the high-voltage part from the low-voltage side using transformer isolation.
To obtain data for relay protection and automation circuits, TRATON uses a Rogowski coil, which provides current measurement in emergency modes. Digital instrument transformer TRATON-110 complies with GOST R IEC 60044-7-2010 “Electronic voltage transformers” and GOST R IEC 60044-8-2010 “Electronic current transformers”. Patents RU161918, RU159443, RU2624977 have been obtained for technical solutions implemented in TRATON-110.
Testing and pilot operation of TRATON-110 were carried out in cooperation with the Energy Department of the South Ural State University.
At present, TRATON-110 has successfully passed high-voltage tests, and work is underway to enter it into the state register of measuring instruments.
- Measurement of current and voltage in AC networks with a voltage class of 110 kV
- Data transmission is carried out via a fiber-optic communication line
- The current is measured using an electromagnetic current transformer
- The voltage is measured using a capacitive voltage scaling converter (divider).
- To obtain data for relay protection and automation circuits, the Rogowski belt is used