Electrical Solutions

Answers for energy.

Published by and Copyright © 2008

Siemens AG Energy Freyeslebenstraße 1D-91058 ErlangenGermany

Siemens AG Energy Fossil Power GenerationInstrumentation, Controls & ElectricalSiemensallee 84D-76187 KarlsruheGermany

sppa-e3000.pg@siemens.comwww.siemens.com/sppa-e3000

E3071_FS31_RG3_e_V1-0 Order No. E50001-G230-A191-X-4A00

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Subject to change without prior notice.The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.

Reliability for every application, with minimum changeout time

SPPA-E3000 RG3 Excitation System

is an excitation system for generators with (brushless) exciters which employs the most advanced technology. It is suitable for all output classes from 1 to over 1000 MVA in hydroelectric, steam and nuclear power plants and is characterized by unconditional reliability and maximum efficiency.

The Task

Sooner or later, the existing excitation system will reach the end of its service life. This may be because some of its modules have been discontinued, or simply because further operation is no longer cost-effective. For example, this is the case if spares are only available at high prices, or if the grid operators impose new requirements for control dynamics which the systems are unable to meet, or if the calculated risk of failures exceeds the acceptable level for any other reasons.

A solution is therefore required which fits perfectly in the existing situation and ensures reliable continuous operation with innovative technology.

Our Solution

RG3 is a proven solution for all generators with exciters. The unconditional reliability and robustness of this system has been clearly demonstrated for years by the over 750 units in operation.The solution can be adapted to the conditions in any power plant, and not only thanks to the high flexibility of the feeder concepts. RG3 is not dependent on the type or model of generator or exciter, power supply or I&C, no matter whether the I&C is also replaced or is left as-is.Especially important is that Siemens provides a customer-oriented solution no matter what redundancy concept is desired, up to full redundancy.

Your Benefit

Maximum reliability and availability with robust, proven technology

Minimum outage time with "unplug/plug in" replacement of existing excitation system

Low maintenance costs with use of proven industrial components and modular design

Extremely simple and thus error-free operation thanks to transparent depiction of operating condition

RG3 excitation system with customer-specific local operation station

This flexibility is achieved with the exclusive use of standard industrial components, meaning there are no "custom components" and no costly inventory of spares required.

Of course Siemens will ensure smooth replacement from planning through to commissioning, and will then continue to support your RG3 system in service. Operability is also improved on switching to RG3 thanks to ergonomic and transparent depiction of operating condition and the excellent interaction of the generator protection and I&C.RG3 is characterized by the highest quality standards.

Instrumentation, Controls & Electrical