ABB Relion 670 Series Applications Manual page 312

Section 14
Secondary system supervision
can be configured to block voltage dependent protection functions such as high-speed
distance protection, undervoltage relays, underimpedance relays and so on.
IEC12000143 V1 EN-US
Figure 136: Application of VDSPVC
14.3.3 Setting guidelines
The parameters for Fuse failure supervision VDSPVC are set via the local HMI or PCM600.
The voltage input type (phase-to-phase or phase-to-neutral) is selected using
ConTypePilot parameters, for main and pilot fuse groups respectively.
and
The settings
UBase . Set UBase to the primary rated phase-to-phase voltage of the potential voltage
transformer.
Value group, that is used by VDSPVC, is set by the setting parameter
The settings
UBase ) so that they are sensitive to the fault on the voltage measurement circuit, since the
306
The connection type for the main and the pilot fuse groups must be consistent.
Ud>MainBlock , Ud>PilotAlarm and USealIn are in percentage of the base voltage,
UBase is available in the Global Base Value groups; the particular Global Base
Ud>MainBlock and Ud>PilotAlarm should be set low (approximately 30% of
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L1 L2 L3
Main Vt circuit
IED
FuseFailSupvn
IEC12000143-1-en.vsd
1MRK 511 401-UEN Rev. K
GUID-0D5A517C-1F92-46B9-AC2D-F41ED4E7C39E v1
GUID-52BF4E8E-0B0C-4F75-99C4-0BCB22CDD166 v2
GUID-0B298162-C939-47E4-A89B-7E6BD7BEBB2C v2
ConTypeMain
GlobalBaseSel .
Bay control REC670
Application manual