Differential protection schemes
|9694||line differential protection Measurement and control device||Y/Y||Differential protection for feeder line of short line in power plant|
|9695||transformer differential protection Measuring and controlling device||Δ/Y||Distribution transformer differential protection|
|9696||motor differential protection Measuring and controlling device||Y/Y||Differential protection for large space motor|
|986||Bus differential protection measurement and control device||Big difference/Small difference||35kV/110kV Busbar differential protection|
|9697||Optical fiber longitudinal differential protection measurement and control device||Y/Y||Line differential protection within 1-5 km|
|9691||Main transformer integrated protection measurement and control device||Y/d11；Y/d1||Two turns, within operation|
|9692||Main transformer differential protection measurement and control device||Y/d11；Y/d1||Two turns,without operation|
|9693||Main transformer differential protection measurement and control device||Y/Y/d11||Three turns.without operation|
|9698||Generator differential protection measurement and control device||Y/Y||high-voltage generator|
|9699||Measurement and control device for differential protection of generator transformer group||Y/Y；Y/△；Y/Y/△||Generator transformer unit|
|9671C||Integrated circuit protection measuring and controlling device||differential ,backup||Line differential protection + backup protection|
|9672C||Measuring and controlling device for comprehensive protection of transformer||Differential,backup||Large capacity distribution transformer（Differential protection + backup protection）|
|9673C||Integrated protection and control device for motor||differential、backup||2000KW and above Motor（differential protection+Backup protection）|
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