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IEEE Power Engineering Society. 1999 Winter Meeting (Cat. No.99CH36233), 1999
The increased occurrence of temporary overvoltages caused by commingling in over-built systems is a growing concern to electric utilities and end-users. These events are usually caused by transmission or sub-transmission lines dropping and contacting distribution lines during storms and traffic accidents that damage power poles.
G.L. Goedde, Lj.A. Kojovic, E.S. Knabe
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The increased occurrence of temporary overvoltages caused by commingling in over-built systems is a growing concern to electric utilities and end-users. These events are usually caused by transmission or sub-transmission lines dropping and contacting distribution lines during storms and traffic accidents that damage power poles.
G.L. Goedde, Lj.A. Kojovic, E.S. Knabe
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The IGBT with monolithic overvoltage protection circuit
[1993] Proceedings of the 5th International Symposium on Power Semiconductor Devices and ICs, 2002A novel IGBT (insulated-gate bipolar transistor) with a monolithic overvoltage protection circuit has been developed to obtain high resistance to overvoltage stress. This device is characterized by novel integration of an avalanche diode with an IGBT structure.
T. Yamazaki +3 more
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Overvoltage protection for MV-substations
14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium), 1997In the past, MV substations, which were fed via cable link with the overhead line, were often destroyed due to lightning flashes. These damages occurred although the unit substations are in general protected by a surge arrester at the cable/overhead line conjunction against lightning overvoltages.
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Overvoltage protection for computer serial communication
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409), 2002Micro-electronic circuits are often damaged by overvoltage. Shunting current, equalizing voltage, grounding, shielding and surge suppression are effective countermeasures for overvoltage protection, but overvoltage protection for micro-electronic circuits has some special demands different from these for electrical equipment.
null Qingheng Chen +3 more
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Protection of Section Parts from Overvoltage
2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek), 2021World practice of operating electric networks shows that reclosers are used to partition them, as a rule. National regulatory documents governing the use of reclosers do not yet exist, which raises questions related to their operation. One such issue is surge protection for the recloser.
Sergey Shevchenko +3 more
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Overvoltage and surge protection in DC-systems
2012 International Conference on Lightning Protection (ICLP), 2012DC-systems have been on the rise over the last years. The need for an effective surge and overvoltage protection for DC-systems increases accordingly. Both the current installation standards for SPDs and also the product standards mainly focus on the application of SPDs in AC-systems. Therefore this paper analyses based on measurements and calculations
J. Birkl, P. Zahlmann
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Overvoltage Protection for Industrial Plants
1999The paper presents the use of the finite element method when modelling co-ordination of protective elements of overvoltage protection for industrial ...
Jelčić, Tadej +2 more
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Overvoltage protection in wind power farms
2012 International Conference on Lightning Protection (ICLP), 2012Lightning and overvoltage protection of wind power farms and wind power generators is addressed considering the different equipment and stresses. Standards are discussed and typical cases show that further investigations are necessary and new surge protective devices have to be developed and tested.
Bernhard Richter, Erko Lepa
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Overvoltage protection of gas-insulated substations
Power Engineering Journal, 1987Increasing demand for electrical power in centres of large conurbations has led to the development of compact gasinsulated substations. For these it is not possible to follow established practice of fitting co-ordination gaps, and therefore surge arresters have to be used to limit ...
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Overvoltage protection, faults and voltage sags
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951), 2005Distribution transformers in rural networks have to cope with frequent lightning induced overvoltages and thus must be protected using spark gaps or surge arresters. The overvoltage protection type has an influence on the system behaviour and on the interruptions and voltage sags experienced by power system customers. In this paper, measurement results
P. Heine, M. Lehtonen, A. Oikarinen
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