ABB Relion 670 Series Applications Manual page 214

Section 13
Secondary system supervision
13.5 Delta supervision of real input DELSPVC
13.5.1 Identification
Function description
Delta supervision of real input
13.5.2 Application
Delta supervision of real input DELSPVC is a general processed input delta supervision. It is used
to configure any processed inputs such as:
• Power (S)
• Active power (P)
• Reactive power (P)
• Thermal heat content (ɸ)
• Energy
The change over time of these quantities with respect to the old value can be supervised with this
function.
13.5.3 Setting guidelines
Operation : This setting is used to enable/disable the delta supervision function.
MinStVal : The minimum start level of the function. If the input is below this level, the function will
be blocked. It should be set depending on the input connected.
DelSt> : This setting is used to set the start value for delta detection.
DeltaT : This setting defines the number of execution cycles of old data to be used for delta
calculation. That is, if
to compare the change against.
tHold : This setting defines the pulse length for the start signal. A typical value of this setting is 100
ms.
208
IEC 61850
identification
DELSPVC
DeltaT setting is set as 6 for a 3 ms function, an 18 ms old value will be used
© Copyright 2017 Hitachi Power Grids. All rights reserved
IEC 60617 ANSI/IEEE C37.2
identification device number
– –
Phasor measurement unit RES670
1MRK 511 407-UUS Rev. J
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GUID-66CFBA71-B3A4-489F-B7F4-F1909B75E1DD v1
GUID-C7F56ACE-D1F2-4F33-96CA-108D7F11FDD5 v1
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Application manual