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Section 4
1MAC050144-MB C
Protection functions
136
615 series ANSI
Technical Manual
Table 118: Measurement modes supported by 67/51P and 67/50P stages
4.1.3.6
Directional overcurrent characteristics
The forward and reverse sectors are defined separately. The forward operation area is
limited with the
Min forward angle
and
Max forward angle
settings. The reverse operation
area is limited with the
Min reverse angle
and
Max reverse angle
settings.
In the forward operation area, the
Max forward angle
setting gives the counterclockwise
sector and the
Min forward angle
setting gives the corresponding clockwise sector,
measured from the
Characteristic angle
setting.
In the backward operation area, the
Max reverse angle
setting gives the counterclockwise
sector and the
Min reverse angle
setting gives the corresponding clockwise sector, a
measurement from the
Characteristic angle
setting that has been rotated 180 degrees.
Relay characteristic angle (RCA) is set positive if the operating current lags the polarizing
quantity and negative if the operating current leads the polarizing quantity.
Measurement mode
Supported measurement modes
67/51P and 67/50P-1
67/50P-2
RMS
x
x
DFT
x
x
Peak-to-Peak
x
x
The sector limits are always given as positive degree values.
Summary of Contents for 615 Series ANSI
Page 1: ...Relion Protection and Control 615 series ANSI Technical Manual ...
Page 2: ......
Page 29: ...1MAC050144 MB C Section 615 series ANSI 22 Technical Manual ...
Page 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Page 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Page 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Page 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
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