Study For Calibration Specification Of On Load Tap Changetester

The tester of on load tap changer as one of the equipment of the power supplynetwork.The working state is related to the safe operation of the whole power supplynetwork.For a long time, because the country is no uniform load tap changer testercalibrationspecification, resulting in the lack of technical basis for calibration work, there are greatdifferences between the calibration results, load switchtester reliability can not be guaranteed,directly affects the reliability of power system operation. So the research on load tap switchtester calibration method, formulation of on load tap changer tester calibration specification,has become an important task in the research of electrical metrology. This paperadopts themethod of sampling and analysis of the combination of theory, on load tap switch testercalibration requirements, technical conditions, calibrationand calibration method ofuncertainty is studied, completed the main work is as follows:1.Load production status switch test instrument to survey,Analysis of thepresent situationofon load tap changer testerat home and abroad,To determine the load parameter switchtesterand sampling plan.2.Study on load tap changer tester calibration environment, standards and equipmentselection, the load calibration condition switch tester.3of the on load tap test and theoretical analysis of technical performance testinginstrument on the switch, load switch test calibration instrument and calibration method.4the measurement results on load tap changer tester indication erroruncertaintyassessment method, gives the on load tap changer testercalibration uncertainty evaluationparadigm, to ensure the reliability ofmeasurement results.Research results "on load tap changer tester calibration specification", has been approvedby Hebei Provincial Bureau of quality and Technical Supervision Organization expertspecification examination committee, and thecalibration standard places in Hebei Provincepromulgated and implemented,the specification for the Hebei province to provide technicalbasis for loadcalibration switch tester the.