General Electric 1253-0002-C2 Multilin Upper Control Board 369-C100

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.

Test Modes

IEC 61850 edition 2.1 provides standard mechanisms for testing

purposes, reducing commissioning complexity and allowing new bay

installations without affecting substation operation.

With the test modes in MU360 users can independently configure

mode and behavior of each logical devices allowing then to operate

as: On, Test, Blocked, Test/Blocked and Off.

A Safer and Cybersecure Substation

Transmitting the instrument transformers´ measurements digitally

through optical fibers eliminates the risk of inadvertent mishandling

of the current and voltage circuits and makes the relay room a safer

work environment, eliminating hazards and reducing the risk of

personnel injury.

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.

The MU360 unlocks the full value of a completely digital substation, capable to be a single

I/O interface for Protection, Automation and Control applications to bay IEDs. Limiting the

field wiring just up to the MU360 reduces project complexity by reducing cabling, terminals,

and physical connections, which combined with a complete set of logical nodes allows

design standardization on the yard. Bay level IEDs can use data from redundant MU360

units, increasing system availability. Bay level IEDs can also be quickly replaced or added

using IEC 61850 test modes as no field wiring is involved. The MU360 has the additional

benefit of improving CT performance and cost through a lower connected burden and a

reduction in the number of CT cores required for an application.

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