Toshiba GR200 Series Instruction Manual page 1211

Line differential protection ied
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Outline
The monitoring function is provided to measure the number of power quantities and statistics
data obtained within the VCT and BI circuits†. When the measuring instruments start
measures power quantities, mathematical means is applied to the data from the VCT so that
the data are shown accurately on the IED screen.
†Note: The VCT/BIO structures and their features are discussed in Chapter
description
Metering data (Metering group)
Several abbreviations are screened for metering data, which is tabulated below Table
Note: Terms 'I 0 (i.e., 3I 0 )' and 'V 0 (i.e., 3V 0 )' are calculated using three-phase quantities.
1
Note: The 'I e ' and 'I em ' are obtained usually with corresponding 'I e ' and 'I em ' circuits in
2
the VCT.
Note: 'CH2' is available when two signaling modules exist in the IED, which is
3
dependent on the model. Check the ordering number at the C position referring to
the ordering (See
Note: Those metering items are provided for the special models, which are designated at
4
ordering made.
Note: Positive-sequence V1, which represents power system, is used to measure the
5
frequency.
Note: Check the ordering number at the G&T position referring to the ordering (See
6
Appendix: Ordering)
.
Appendix: Ordering
- 1188 -
)
6F2S1914 (0.49)
Technical
.
1–6
GRL200 (Soft 033 & 037)

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