1.2 Application Scope
21
7UM61 Manual
C53000-G1176-C127-3
1.2 Application Scope
The SIPROTEC
®
7UM61 device is a digital multi-function machine protection unit from
the 7UM6 Numerical Protection series. It provides all functions necessary for protec-
tion of generators and motors. As the scope of functions of the 7UM61 can be custom-
ized, it is suited for small, medium-sized and large generators.
The device fulfills the protection requirements for the two typical basic connections:
• Busbar connection
• Unit connection
Figure 1-2 Typical Connections
The scalable software allows a wide range of applications. Corresponding function
packages can be selected for each particular application. For instance, alone with the
7UM61 device, it is possible to provide comprehensive and reliable protection of gen-
erators from small to medium capacity (approx. 0.5 - 5 MW).
Additionally, the device forms the basis for the protection of medium to large size gen-
erators (backup protection). In combination with the 7UM62 device (a further device
of the 7UM6 series), all protection requirements encountered in practice for the small-
est to the largest machines can be met. This makes possible a consistent concept for
reserve protection capacity.
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