SVIBOR - Project code: 2-05-379

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 2-05-379


INSTRUMENT TRANSFORMERS AT POWER SYSTEM TRANSIENTS


Main researcher: POLJAK, MIROSLAV (84806)


Assistants
Type of research: applied
Duration from: 10/06/91. to 12/31/94.
Papers on project (total): 6
Papers on project quoted in Current Contents: 2
Institution name: Končar, Institut za elektrotehniku, Zagreb (8)
Department/Institute: Transformer Department
Address: Baštijanova bb
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)41 318 606
Fax: 385 (0)41 318 815
Summary: The behaviour of instrument transformers at power system transients is investigated. Test methods and criteria for acceptance tests of instrument transformers have been implemented by laboratory simulation of the phenomena in the network. On the basis of experimental and theoretical investigations the design and technology solutions have been imporved in order to increase the reliability of transformers in operation. A separate subtask is the development of a special device for detaction of possible faults at instrument transformers that locks them out before damage is made.

Keywords: instrument transformer, transient phenomena, protective device

Research goals: The main goal of the project is to increase the reliability of instrument transformers in operation. Further, it is expected to increase the level of knowledge from the view of behaviour of instrument transformers in steady and transient states for the purpose of creating a quality basis for dimensioning and testing of instrument transformers. The investigations should provide all the elements for the development of devices for transformer lock-out at the stage preceding failure. Participation in IEC Working Group enables direct insight into the state-of-the-art in the world in this area.
Other information about the project.
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