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Table 59. Current based delta supervision DELISPVC
Function
Range or value
Accuracy
Minimum current
(5.0 - 50.0)% of IBase
±1.0% of Ir at I ≤ Ir±1.0% of I at I > Ir
DelI>
(10.0 - 500.0)% of IBase
Instantaneous 1 cycle & Instantaneous 2 cycle mode:
±20% of Ir at I ≤ Ir±20% of I at I > Ir
RMS & DFT Mag mode:
±10% of Ir at I ≤ Ir±10% of I at I > Ir
Second harmonic blocking
(5.0 - 100.0)% of
fundamental
±2.0% of Ir
Third harmonic restraining
(5.0 - 100.0)% of
fundamental
±2.0% of Ir
Operate time for changeat Ir to (Ir + 2 x DelI>)at Ir to
(Ir + 5 x DelI>)
Instantaneous 1 cycle & Instantaneous 2 cycle mode -
<20ms
RMS & DFT Mag mode - <30ms
Line distance protection REL650
1MRK 506 384-BEN H
Version 2.2
78
Hitachi Power Grids
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Содержание REL650 series
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