Prague, 8-11 June 2009 X.T. Dong, R. Summer, and U. Kaltenborn - Germany RIF Session1 Paper 0637 Thermal Network Analysis in MV GIS Design Areva Energietechnik GmbH – Sachsenwerk Medium Voltage, Germany
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Prague, 8-11 June 2009
X.T. Dong, R. Summer, and U. Kaltenborn - Germany RIF Session1 Paper 0637
Thermal Network Analysisin MV GIS Design
Areva Energietechnik GmbH – Sachsenwerk Medium Voltage, Germany
2 2
Prague, 8-11 June 2009
IntroductionThermal network method
Simulation procedure
Results & summary
3 3
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Thermal network methodAnalogy between electrical and thermal field
Potential differenceTemperature differenceCurrent flowHeat flowElectrical resistanceThermal resistanceElectrical capacitanceThermal capacitance
thRPT ⋅=Δ RIU ⋅=Δ
4 4
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Thermal network methodPSPICE
User interface (Input & output)
Translator & solver
Theta librarySymbol with physics model to describe thermal sources & resistance/ capacitances
5 5
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ExampleTwo conductors with screw joint
6 6
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User library Bushing part
Example
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Simulation procedureModel creation
Single phase, multi-units representation
Model verification
Result prediction
Design optimization
8 8
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Simulation model for a type test
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Model verification
GHA 2500A double busbar feeder -- busbar top
01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Measurement points
Tem
pera
ture
rise
MeasuredMeasured GasSimulationSimulation_Gas
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Model verification
GHA 2500A double busbar feeder -- busbar rear
01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Measurement points
Tem
pera
ture
rise
MeasuredMeasured GasSimulationSimulation_Gas
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Temperature rise prediction
GHA 2500A single busbar feeder
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
Measurement points
Tem
pera
ture
rise
MeasuredMeasured GasSimulationSimulation_Gas
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Conclusion
High modeling efficiency
Very Low computational cost
Good accuracy
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