EX2100 AVR: A Reliable Solution for Voltage Regulation
The EX2100 is a cutting-edge automatic voltage regulator (AVR) designed for brushless and static excitation systems. It caters to a wide range of generators, from small industrial units to large nuclear power plants. The AVR’s primary function is to regulate field current, thereby controlling generator terminal voltage and reactive power. The GE Control toolbox serves as a valuable commissioning and maintenance software tool.
Maintenance and troubleshooting-
EX2100 maintenance includes routine tasks such as cleaning panels, components, control boards, SCRs, and AC filters. Field breaker maintenance is also essential. Many customers have trained technicians capable of performing these tasks. However, as a state-of-the-art device, the EX2100 features a microprocessor-based controller and complex PCBs with limited spare parts available. Arjavin’s team of former GE EX2100 experts offers specialized troubleshooting support. We can also conduct comprehensive testing, including grid code tests, open circuit, short circuit, limiters, and PSS. Arjavin’s combination of technical expertise and sourcing knowledge helps customers mitigate risks in the static excitation system’s power circuit.
Obsolescence
EX2100 panel production was discontinued in 2011, replaced by the advanced AVR EX2100e. From 2011 to 2021, the EX2100 was in the post-production phase before entering the legacy phase. This marked the end of EX2100 control board production in 2021. The EX2100e is a compatible upgrade with minimal impact on plant configuration.
Upgrade Options
While it’s possible to replace the EX2100 with an AVR from another manufacturer, this can present challenges, especially in maintaining interfaces with GE Mark VI or VIe control panels. Upgrading to the EX2100e is a straightforward solution if budget constraints are not a concern. However, customers facing financial challenges may find it difficult to justify this upgrade. Our former GE engineers can provide valuable support for EX2100 systems. Arjavin also offers a reliability enhancement package and a technical support package for EX2100, both of which can improve system reliability without any financial commitment.
Arjavin’s Expertise
Despite the EX2100’s obsolescence, Arjavin offers a reliability enhancement package for customers considering a DFE upgrade. This package ensures that single points of failure and reliability issues associated with the EX2100 are not carried over to the EX2100e DFE upgrade. While the owner is aware of the risks beyond the scope of controls, they can plan for risk mitigation in areas such as water cooling circuits and SCRs.
Arjavin offers a free assessment for reliability enhancement and technical support, with no financial commitment required. Contact us today to learn more about how we can help you optimize the performance and reliability of your EX2100 system.