ABB relion REF615 Applications Manual page 310
Feeder protection and control relion 615 series
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Also See for relion REF615:
- Applications manual (240 pages) ,
- Operation manual (126 pages) ,
- Product manual (57 pages)
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Section 3
REF615 standard configurations
304
ROVPTOV1_OPERATE
ROVPTOV2_OPERATE
GUID-02DC3919-900F-41A1-82DA-28B3FE236F56 V1 EN
Figure 462:
Residual voltage protection function
The selectable underfrequency or overfrequency protection FRPFRQ prevents
damage to network components under unwanted frequency conditions. The function
also contains a selectable rate of change of the frequency (gradient) protection to
detect an increase or decrease in the fast power system frequency at an early stage.
This can be used as an early indication of a disturbance in the system.
ROVPTOV1
BLOCK
OPERATE
START
ROVPTOV2
BLOCK
OPERATE
START
OR6
B1
O
B2
B3
B4
B5
B6
1MRS756378 S
ROVPTOV1_OPERATE
ROVPTOV1_START
ROVPTOV2_OPERATE
ROVPTOV2_START
ROVPTOV_OPERATE
REF615
Application Manual
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