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Generator Transformer Protection System full diagram based on SIPROTEC Siemens Relays

The task of the electrical unit protection is detecting electrical failures and inadmissible operation of the generator, generator bus bar, excitation system, generator transformer, and another existing transformer (Station transformer, unit auxiliary transformer) and disconnect faulty circuits with speed and certainly without interference healthy circuits. The mechanical turbine and generator protection are independent of electrical protection. The generator protection and synchronizing cubicles will be delivered in fully wired and tested cubicles, ready for connection. Each subcase contains a complete protection device with DC/DC converter for power supply, Potential, and current transformers, an A/D converter, computer chips, a watchdog 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 course contains the diagram of the Generator and Transformer protection based on SIPROTEC 4 SIEMENS IEDs. Please contact us for more info and get this course.

Large or small, every industrial, commercial, and institutional organization needs to understand how to protect their investment in their electric power systems.

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 another existing transformer (Station transformer, unit auxiliary transformer) and disconnect faulty circuits with speed and certainly without interference healthy circuits.

An automatic synchronizing unit is furnished for connecting the generator unit to the grid via the generator circuit breaker. It is also possible to connect via the circuit breakers in the HV substation if the generator circuit breaker is already closed.

The universal transducers allow the measurement of all electrical quantities occurring in any network in a single unit. Especially in power plants and substations, transducers are used to isolate electrical signals and further process measured values.

The following PDF is the course on Protection, synchronization, and measurement system in the generation station. This course is based on the Siemens project.

Type: PDF

Page: 120

Size: 21 MB