One.Summary of National power quality supervision and inspection center power transformer testing system

　　The national electrical product quality supervision and Inspection Center (Suzhou Electrical Science Research Institute, Jiangsu Province Electrical Science Research Institute) is approved by the State Administration of Quality Supervision Inspection, quarantine, the national certification, Accreditation Administration, is the production license testing unit approved by the State General Administration of quality supervision, the national certification and Accreditation Committee approved "CCC" is Chinese detection mechanism, quality certification center (CQC), PCCC signed contract laboratory and the United States signed to UL laboratory laboratory.

　　The national electrical product quality supervision and inspection center of power transformer test system through the evaluation test of transformer, accurate measurement of no-load loss of transformer, short circuit loss, efficiency, quality and other important influence on power performance parameters for transformer design, development, production and performance improvement to provide authoritative and reliable data.

Two.Power transformer test system site image

Three.Schematic diagram of power transformer test system

Schematic diagram of power transformer test system

　　When the transformer no-load test is carried out, one side winding is connected with a voltage regulator, and the other side of the winding short cable is disconnected; when the transformer load test is carried out, the side winding is connected with a voltage regulator, and the short circuit is connected with the other side of the short circuit.

Four.Power transformer test system equipment list

Measuring point	Device name	Model	Number	Remarks
SP1	Variable frequency power sensor	SP691202C	3
	Frequency conversion power analyzer	WP4000	1

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