Identification - ABB RES670 Technical Manual

1MRK 511 408-UUS A
13.2.1
13.2.2
Phasor measurement unit RES670 2.2 ANSI
Technical manual

Identification

Function description
Fuse failure supervision
Functionality
The aim of the fuse failure supervision function (FUFSPVC) is to block voltage
measuring functions at failures in the secondary circuits between the voltage
transformer and the IED in order to avoid inadvertent operations that otherwise might
occur.
The fuse failure supervision function basically has three different detection methods,
negative sequence and zero sequence based detection and an additional delta voltage
and delta current detection.
The negative sequence detection algorithm is recommended for IEDs used in isolated
or high-impedance grounded networks. It is based on the negative-sequence quantities.
The zero sequence detection is recommended for IEDs used in directly or low
impedance grounded networks. It is based on the zero sequence measuring quantities.
The selection of different operation modes is possible by a setting parameter in order to
take into account the particular grounding of the network.
A criterion based on delta current and delta voltage measurements can be added to the
fuse failure supervision function in order to detect a three phase fuse failure, which in
practice is more associated with voltage transformer switching during station
operations.
Secondary system supervision
IEC 61850 IEC 60617
identification identification
FUFSPVC -
Section 13
M14869-1 v4
ANSI/IEEE C37.2
device number
-
SEMOD113820-4 v12
367