@inproceedings{Rogers:2010:10.1049/cp.2010.0039,
author = {Rogers, DJ and Green, TC},
doi = {10.1049/cp.2010.0039},
title = {Zero-current zero-voltage switching for on-load tap changers},
url = {http://dx.doi.org/10.1049/cp.2010.0039},
year = {2010}
}

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TY  - CPAPER
AB  - We present a new on-load tap changer (OLTC) design that provides the traditional advantages of the semiconductor-assisted OLTC over the classic, mechanical OLTC. The design provides zero-current, zero-voltage operation of both diverter switches at all times, eliminating contact wear due to arcing. The design of the diverter sub-circuit is discussed, including the introduction of a voltage source and corresponding control loop that provides the necessary shunt current or voltage to create the desired zero conditions in the diverter switches. The design differs from existing semiconductor-assisted OLTC systems by the fact that the semiconductor portion of the system is connected in a purely shunt configuration to the main current path. Under normal conditions the load current flows only in the selector and diverter switches making the system very low loss.
AU  - Rogers,DJ
AU  - Green,TC
DO  - 10.1049/cp.2010.0039
PY  - 2010///
TI  - Zero-current zero-voltage switching for on-load tap changers
UR  - http://dx.doi.org/10.1049/cp.2010.0039
ER  - 

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