GUID-DAECF9F5-1D0B-43FC-AD29-8F96E05DD0DA v4
Table 89. Voltage based delta supervision DELVSPVC
Function
Range or value
Accuracy
Minimum Voltage
(5.0 - 50.0)% of UBase
±0.5% of Ur at U ≤ Ur
DelU>
(2.0 - 500.0)% of UBase
Instantaneous 1 cycle & Instantaneous 2 cycle mode:±20%
of Ur at U ≤ Ur±20% of U at U > Ur
RMS & DFT Mag mode:±10% of Ur at U ≤ Ur±10% of U at U
> Ur
DelUAng>
(2.0 - 40.0) degrees
±2.0 degrees
Operate time for changeat Ur to (Ur + 2 x DelU>)at
Ur to (Ur + 5 x DelU>)
Instantaneous 1 cycle & Instantaneous 2 cycle mode -
<20msRMS & DFT Mag mode - <30ms
Operate time for jump from Zero degrees to
'AngStVal' + 2 degrees
Vector shift mode - <60ms
GUID-ED3FE722-1F29-4340-94E9-6C907C4474F2 v3
Table 90. 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 differential protection RED670
1MRK 505 379-BEN R
Version 2.2
Hitachi Energy
125
© 2017 - 2022 Hitachi Energy. All rights reserved
Содержание Relion 670 Series
Страница 1: ...Relion 670 SERIES Line differential protection RED670 Version 2 2 Product guide ...
Страница 191: ...191 ...