Xuji WFB-802A microcomputer generator protection measurement and control device
WFB-800 series micro-variable set protection device is mainly suitable for the protection of main power system.WFB-801 integrates all the electrical protection of a generator, WFB-802 integrates all the electrical protection of a main transformer, WFB-803 integrates all the electrical protection of a high plant transformer and excitation transformer (exciter), and WFB-804 integrates all non-power protection of a main transformer and high plant transformer.It can meet the completely independent configuration requirements of double main protection, double backup protection, non-power protection and non-power protection.At the same time, the series of protection can also be directly connected to the power plant's integrated automation system.
Xuji WFB-802A microcomputer generator protection measurement and control device
1,600 (300) MW-500kV-transformer unit main protection configuration: generator longitudinal differential protection, generator interturn protection (transverse difference protection or negative order incremental direction locking longitudinal zero order voltage protection), main variable differential protection, power variable group differential protection, high plant variable differential protection, exciter (transformer) differential protection.
2, 600 (300) MW-500kV turbine generator-transformer unit generator backup protection and abnormal operation protection configuration is: interphase impedance protection, base wave zero order voltage protection, three harmonic voltage protection, rotor one point grounding protection, rotor limit winding overload protection, reverse time rotor surface overload protection, overvoltage protection, reverse power protection, low frequency accumulation protection, start and stop protection, sudden voltage protection, electric overspeed protection, TA break protection, TV disconnection protection .
3,600 (300) MW-500kV turbine generator-transformer unit transformer backup protection configuration: interphase impedance protection (composite voltage overcurrent protection), zero order current protection, gap zero order current voltage protection, overload protection, TA line protection, TV line protection.
4.600 (300) MW-500kV turbine generator-transformer unit is: overvoltage overflow protection, two branches low-voltage overflow protection, two branches zero-sequence overflow protection, two branches zero-sequence overvoltage protection, overload protection, ventilation start protection, TA broken line protection, TV overline protection.
5,600 (300) MW-500kV steam turbine generator-transformer group unit exciter (transformer) backup protection configuration is: exciter (transformer) overcurrent protection, reverse time limit excitation overload protection, TA disconnection protection.
6.600 (300) MW-500kV turbine generator-transformer group unit other protection: short lead protection, failure start protection, circuit breaker break flashover protection, non-full phase operation protection, generator water break protection, generator thermal protection, excitation system failure, system protection joint jump; main transformer and plant transformer all non-power protection.
Xuji WFB-802A microcomputer generator protection measurement and control device
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