基于外殼尺寸和元器件功耗計算低壓成套開關(guān)設(shè)備溫升的算法

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An Algorithm for Calculating Temperature Rise of Low-voltage Switchgear Assemblies Based on Shell Sizes and Component Power Consumption

ZHAO Qi* LIU Tong LI Hai-cheng （Shandong Institute for Product Quality Inspection）

Abstract：According toGB/T24276-2017，thepaperputsforwardanalgorithmforcalculating temperatureriseoflow-voltage switchgearassembliesbasedonshellsizesandcomponentpowerconsumption.Theprincipleof thisalgorithm is todetermine theinternalairtemperatureriseoftheshellaccodingtothesizesandtheheatdissipationareaoftheshell，totainthe temperatureriseoftheairinsidetheshell.Thedataobtainedbycalculationwasusedtocalculatethe predictedtemperature riseanddrawthetempeatureriseurve，fingwellwiththeactualtemperaturerisecure，hicherifedthefeasibiltofthe algorithmfortemperaturerise predictionThealgorithm isexpectedtohelpenterprisedesignandteststationinspectors，and improve thequalitylevelandthe inspectioneffciencyofhigh-voltage&low-voltageelectricalapplianceindustry.

Keywords：low-voltage switchgearassemblies， temperaturerise，algorithm，effectiveheatdissipationareaofthe shell

0 引言

低壓成套開關(guān)設(shè)備是輸配電的基礎(chǔ)設(shè)備，廣泛應(yīng)用于工業(yè)、農(nóng)業(yè)、交通、城市社區(qū)等領(lǐng)域，設(shè)備發(fā)熱對電網(wǎng)的安全運行具有重要影響。（剩余2669字）