GeneratorTransformer Protection System full diagram based on SIPROTEC Siemens Relays
The task of the electrical unit protection is to detect electrical failures and inadmissible operation of the generator, generator bus bar, excitation system, generator transformer and other existence transformer(Station transformer, unit auxiliary transformer) and disconnect faulty circuits with speed and certainly without interference healthy circuits. The mechanical turbine and generator protection is independent from the electrical protection. The generator protection and synchronizing cubicles will be delivered in fully wired and tested cubicles, ready for connection. Each sub case contains a complete protection device with DC/DC converter for power supply, Potential and current transformers, A/D converter, computer chips, watch dog circuit and trip relays.
Numerical protection system (NPS) shall mean the protection terminals wherein the analog to digital conversion of the input variables takes place immediately after the input transformers and all further processing of the resulting numerical signals shall be performed by microprocessors and controlled by programs. NPS shall include all features of conventional relays, protective devices, relay panels for generator, generator transformer, unit transformer and station transformer
The following PDF contains the diagram of the Generator and Transformer protection based on SIPROTEC 4 SIEMENS IEDs.
Type : PDF
Page : 211
Size : 4.1 MB
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