Xuji WBH-811A microcomputer transformer protection monitoring and control device
WBH-811 microtransformer protection device is suitable for protection of voltage grade transformer 110kV and below.The WBH-811 device integrates the full electrical capacity protection of a three-volume transformer, and the WBH-802 device integrates all non-power type protection of the transformer.It can meet the completely independent configuration requirements of main protection, backup protection and non-power protection of various 110kV and below voltage grade transformers, and can also meet the requirements of main protection, backup protection and non-power protection of 220kV voltage grade transformer.In addition, the protection device can well meet the requirements of the substation automation system.
Xuji WBH-811 microcomputer transformer protection measurement and control device
WBH-810 series microcomputer transformer protection device is suitable for 110 kV and below.The series of microcomputer transformer protection mainly includes WBH-812, WBH-813 and WBH-814. WBH-812 device completes the differential protection of transformer, which adopts automatic phase adjustment of secondary current and provides reliable excitation surge flow criterion to realize four-side differential; WBH-813 device completes the backup protection and measurement and control function of transformer side; WBH-814 device completes transformer non-power protection, need delay non-power without delay relay, by CPU delay exit.The man-machine interface adopts large screen, graphics, Chinese, color liquid crystal, decimal fixed value online calibration, real-time display of operating parameters.The device has the fault wave recording function, and the format is compatible with the COMTRADE.Support IEC60870-5-103 communication regulation, with two sets of communication interfaces (dual RS-485 or dual RS-232) to meet the requirements of substation integrated automation system and relay protection management information system.
Xuji WBH-811A microcomputer transformer protection monitoring and control device
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