The Experts below are selected from a list of 24 Experts worldwide ranked by ideXlab platform
Drahomir Tuma - One of the best experts on this subject based on the ideXlab platform.
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Experience with pressure rise calculation in medium voltage switchgear
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault.
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Experience with Pressure Rise Calculation in Medium Voltage Switchgear Internal arc calculation tool
2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault. An internal arc is an unintentional discharge of electrical energy in switchgear. During the fault, short-circuit currents flow between phases and to ground. The arc heats among others the filling gas in the switchgear enclosure. It is either SF6 or air and the result of heating is pressure rise. Internal arc fault is very rare, but when it happens it may lead to serious damage of the electrical equipment, building and may even endanger personnel. From this point of view it is very important to know the overpressure in switchgear enclosure and in switchroom. IEC 61936-1 requires that the building design should consider the pressure rise due to these exhaust gases. Internal arc test does not cover pressure rise in switchroom. Installation room is simulated by two perpendicular walls and ceiling, but it is not a gas-tight room allowing pressure rise measurement. (2) The best way, how to determine the pressure rise is calculation of the pressure rise. Simplified mathematical model was developed for pressure rise calculation. This paper describes what cases could be solved using this model.
Tomas Bajanek - One of the best experts on this subject based on the ideXlab platform.
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Experience with pressure rise calculation in medium voltage switchgear
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault.
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Experience with Pressure Rise Calculation in Medium Voltage Switchgear Internal arc calculation tool
2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault. An internal arc is an unintentional discharge of electrical energy in switchgear. During the fault, short-circuit currents flow between phases and to ground. The arc heats among others the filling gas in the switchgear enclosure. It is either SF6 or air and the result of heating is pressure rise. Internal arc fault is very rare, but when it happens it may lead to serious damage of the electrical equipment, building and may even endanger personnel. From this point of view it is very important to know the overpressure in switchgear enclosure and in switchroom. IEC 61936-1 requires that the building design should consider the pressure rise due to these exhaust gases. Internal arc test does not cover pressure rise in switchroom. Installation room is simulated by two perpendicular walls and ceiling, but it is not a gas-tight room allowing pressure rise measurement. (2) The best way, how to determine the pressure rise is calculation of the pressure rise. Simplified mathematical model was developed for pressure rise calculation. This paper describes what cases could be solved using this model.
Emil Kalina - One of the best experts on this subject based on the ideXlab platform.
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Experience with pressure rise calculation in medium voltage switchgear
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault.
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Experience with Pressure Rise Calculation in Medium Voltage Switchgear Internal arc calculation tool
2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault. An internal arc is an unintentional discharge of electrical energy in switchgear. During the fault, short-circuit currents flow between phases and to ground. The arc heats among others the filling gas in the switchgear enclosure. It is either SF6 or air and the result of heating is pressure rise. Internal arc fault is very rare, but when it happens it may lead to serious damage of the electrical equipment, building and may even endanger personnel. From this point of view it is very important to know the overpressure in switchgear enclosure and in switchroom. IEC 61936-1 requires that the building design should consider the pressure rise due to these exhaust gases. Internal arc test does not cover pressure rise in switchroom. Installation room is simulated by two perpendicular walls and ceiling, but it is not a gas-tight room allowing pressure rise measurement. (2) The best way, how to determine the pressure rise is calculation of the pressure rise. Simplified mathematical model was developed for pressure rise calculation. This paper describes what cases could be solved using this model.
Roman Pernica - One of the best experts on this subject based on the ideXlab platform.
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Experience with pressure rise calculation in medium voltage switchgear
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault.
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Experience with Pressure Rise Calculation in Medium Voltage Switchgear Internal arc calculation tool
2015Co-Authors: Tomas Bajanek, Emil Kalina, Roman Pernica, Drahomir TumaAbstract:This paper focuses on the application of simplified model for the calculation of the pressure rise in medium voltage switchgear due to internal arc fault. It describes how it can be used for development of the metal switchgear enclosure, for comparison of various types of gas ducts and evaluation of pressure rise in switchroom during internal arc fault. An internal arc is an unintentional discharge of electrical energy in switchgear. During the fault, short-circuit currents flow between phases and to ground. The arc heats among others the filling gas in the switchgear enclosure. It is either SF6 or air and the result of heating is pressure rise. Internal arc fault is very rare, but when it happens it may lead to serious damage of the electrical equipment, building and may even endanger personnel. From this point of view it is very important to know the overpressure in switchgear enclosure and in switchroom. IEC 61936-1 requires that the building design should consider the pressure rise due to these exhaust gases. Internal arc test does not cover pressure rise in switchroom. Installation room is simulated by two perpendicular walls and ceiling, but it is not a gas-tight room allowing pressure rise measurement. (2) The best way, how to determine the pressure rise is calculation of the pressure rise. Simplified mathematical model was developed for pressure rise calculation. This paper describes what cases could be solved using this model.
Herrie Engbersen - One of the best experts on this subject based on the ideXlab platform.
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Fixed or withdrawable switchgear — Withdrawable switchgear, past or future?
Petroleum and Chemical Industry Conference Europe Electrical and Instrumentation Applications, 2011Co-Authors: Martijn Imming, Herrie EngbersenAbstract:This paper focuses on medium voltage switchgear in withdrawable execution, compared to medium voltage switchgear in fixed execution. Looking at the benefits and disadvantages of both executions, and the function the switchgear has to fulfill. Elaborating both executions, investigating accidents and near accidents; analyzing the causes, and studying the possibility of unsafe operation. Giving a clear picture on the total cost of ownership, including the reliability, availability and peripheral influences, such as; cable connection, switchroom size and process control connection. Also looking at operator friendliness, how easy is it to work with the switchgear, how complicated the switching procedure is, and also looking at how complicated conducting maintenance inspections, or maintenance measurement is. The aim of this paper is to provide a clear guideline as to which type of execution is favourable, in a specific situation, taking into account the newest technologies in switchgear and network architecture. After a short introduction to medium voltage switchgear and their applications, the first part of this paper will describe the main aspects, like safety, reliability and cost, of both withdrawable and fixed executions. Followed by chapters that explain the different aspects, to be considered when purchasing a switchgear. Additionally the situations of usages is highlighted. Followed by a chapter that compares fixed and withdrawable medium voltage switchgear. The paper finishes with a hint how to choose between fixed or withdrawable medium voltage switchgear.
