Generator and transformer protection 25MW Synchronizing System
protection: 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 Synchronizing: Synchronizing system mean, indicators and control devices required to ensure that, before electrical systems are paralleled, voltages, frequency (speed) and phase angle are equal and in each phase Measuring and metering: The term measuring mean indicator meters digital type installed in unit local panel and remote monitored in control system.
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