The national electrical product quality supervision and inspection center is approved by the State Administration of Quality Supervision Inspection and quarantine, the national certification, Accreditation Administration approval, China national accreditation review, and approved by the national certification, accreditation administration institutions, metrology certification, production license is approved for testing unit of national quality supervision and Inspection Bureau, National Certification Accreditation Committee approved the "CCC" detection mechanism, is Chinese Quality Certification Center (CQC) and PCCC signed a contract laboratory laboratory and the United States signed to UL laboratory. The center is fully equipped with advanced testing equipment, such as wind power equipment test room, solar photovoltaic test room, energy saving test room, instrument and meter measurement test room and other professional testing rooms.
The grid connected photovoltaic system adopts the WP4000 frequency conversion power analyzer, and simultaneously measures the input and output of the photovoltaic inverter, which can provide accurate measurement data for the performance measurement of the photovoltaic inverter.
Schematic diagram of grid connected photovoltaic system
The PV testing system adopts a DC power supply, and the measurement of PV inverter input and output, SP1 measurement of PV inverter input, output SP2, SP3, SP4 three-phase measurement of photovoltaic inverter, also shows the performance index of the entire grid connected photovoltaic inverter in WP4000.
|Measuring point||Device name||Model||Number||Remarks|
|SP1||Variable frequency power sensor||SP112202C||1||DC power output measurement|
|SP2~SP4||Frequency conversion power analyzer||SP691152C||3||Photovoltaic inverter output measurement|
|Frequency conversion power analyzer||WP4000||1|