Annual Report 2011-2012

Annual Research Report 2011-2012
Project Title:
Design & fabrication of optical high voltage transformer with
piezo-optical method for 230kV substations
Employer: Niroo Research Institute
Project Code: PSTPN03
Project Staff:MortezaMozafari, MahziarNamdanin, ZeinabSanjabi, FatemehAshrafi, KasraRezaee,
MehrnooshHoor, Maryam Shojaee, MahsaAlaee, Mohammad Ali Mirzaee,
ElhamGholamhoseiniSaeedGolkhani, Hassan Koozegar
Project Summary:
Research on optical transformers for measuring voltage and current in different ranges
has been accomplished around the world more than three decades and the resulted
products have been used in power industry effectively. Research in this field in our
country has been started since twelve years ago at NRI by accomplishing some projects.
In this project we have introduced a new method for measuring the voltage by
integration of optic and Piezo Ceramic’s technologies. This causes significant reduction
in optical transformers price.
Main activities have been done in this project are:
• simulation of electrical field and high voltage manufacturing sectors
• design and construction of Piezo-optical sensor
• design and construction of electronic boards
• design and construction of laser transmitters
• design and construction of optical detectors
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NRI 230 KV Piezo-Optical voltage transformer