ABB Relion 670 series - Summation block 3 phase 3 PHSUM; Introduction; Principle of operation

Table 50: SMAI2 Non group settings (basic)
Name Values (Range) Unit Step Default Description
DFTReference InternalDFTRef
AdDFTRefCh1
AdDFTRefCh2
AdDFTRefCh3
AdDFTRefCh4
AdDFTRefCh5
AdDFTRefCh6
AdDFTRefCh7
AdDFTRefCh8
AdDFTRefCh9
AdDFTRefCh10
AdDFTRefCh11
AdDFTRefCh12
External DFT ref
- - InternalDFTRef DFT reference
ConnectionType Ph-N
Ph-Ph
- - Ph-N Input connection type
TYPE 1 - 2 Ch 1 1 1=Voltage, 2=Current
Table 51: SMAI2 Non group settings (advanced)
Name Values (Range) Unit Step Default Description
Negation Disabled
NegateN
Negate3Ph
Negate3Ph+N
- - Disabled Negation
MinValFreqMeas 5 - 200 % 1 10 Limit for frequency calculation in % of VBase
VBase 0.05 - 2000.00 kV 0.05 400.00 Base voltage
4.13 Summation block 3 phase 3PHSUM
4.13.1 Introduction
Summation block 3 phase function 3PHSUM is used to get the sum of two sets of three-
phase analog signals (of the same type) for those IED functions that might need it.
4.13.2 Principle of operation
Summation block 3 phase 3PHSUM receives the three-phase signals from Signal
matrix for analog inputs function (SMAI). In the same way, the BLOCK input will
reset all the outputs of the function to 0.
Section 4 1MRK505222-UUS C
Basic IED functions
114
Technical reference manual