GE CR2962F2D Plugging Switch NIB

The PSPP Linthal was commissioned and handed over to

operator AXPO in 2016 and is producing energy since then.

The 1000MW PSPP is one of the most advanced

hydroelectric power plants in the world.

It is equipped with four rotating machines of 250MW each.

where the decision was taken to use the variable speed

technology to improve operation behaviors and increase the

advantages in regard of efficiency in full load and especially

the significant improvement in part load operation.

The PSPP Kaprun Oberstufe was originally commissioned

1955-1956 with two horizontal machines sets consisting

of Francis turbine, motor-generator and a two-stage radial

pump. The overall installed power of this power plant was 112MW.

In 2018 the modernisation started. To increase the efficiency

and adapt on the new requirements of the energy market, the

Verbund decided to modernize the existing pumped storage

station Kaprun Oberstufe. In 2017 the tendering process for

both machine groups started. They shall be equipped as a

variable speed application with fully fed technology consists

of pump turbine, motor-generator as synchronous machine

and frequency converter. The converter is located between

synchronous machine and main step-up transformer and is

feeding the energy to the grid in turbine mode. Since mid of

2021 the first machine group is now producing energy and

one year later mid of 2022 the second machine group is

connected to grid as well.

The MU360 complies with the main standards for digital

substation IEC 61869-9. IEC 61850 edition 2.1 and IEC 61869

13. which guarantees its interoperability and compliance to the

requirements for being the physical to digital interface of modern

digital substations. Furthermore, measurements of each CT/VT

set may be broadcasted in protection and power quality profiles,

allowing multiple Protection, Automation and Control applications

to consume the data without needing extra footprint for acquisition.

To ensure MU360 have all this connectivity in a cybersecure way, it

has been designed according to IEC 62443 and have all capabilities

described by SL2 of this standard, including RBAC, secure boot and

signed firmware.

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