ROGOWSKI COIL DESIGN FOR MEASURING HIGH CURRENTS UP TO 3 KA AT 150 KV GIS
This research is focused on the design and manufacture of high current measuring instruments using rogowski coil. A Rogowski coil is a wire wound on a toroid with an air core and has a reverse winding so that the two ends of the wire are at the same end. Rogowski coil converts the value of the...
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| Main Author: | |
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/54405 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | This research is focused on the design and manufacture of high current measuring
instruments using rogowski coil. A Rogowski coil is a wire wound on a toroid with an air core
and has a reverse winding so that the two ends of the wire are at the same end. Rogowski coil
converts the value of the current through it into a voltage that is proportional to the change in
current with time. The Rogowski coil is connected to a conditioning circuit so that the resulting
voltage is proportional to the current to be measured. The conditioning circuit is an integrator
circuit with several other supporting circuits such as a series of amplifiers and phase shifts. In
this research, class 0.5 rogowski coil was designed and made for current measurement at a 150
kV GIS with 3 kA nominal current and a short circuit current up to 30 kA. From the results of
the Rogowski coil calibration, the sensitivity for measurements is 1A / 1.0994 mVpp and a
protection sensitivity of 1A / 0.1079 mVpp. |
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