Identification; Application - ABB REB670 Applications Manual

Section 11
Secondary system supervision
11.2.1
11.2.2
278

Identification

Function description
Fuse failure supervision

Application

Some protection functions operate on the basis of measured voltage at the relay point.
Examples of such protection functions are distance protection function, undervoltage
function and energisation-check function. These functions might mal-operate if there is an
incorrect measured voltage due to fuse failure or other kind of faults in voltage
measurement circuit.
VDSPVC is designed to detect fuse failures or faults in voltage measurement circuit based
on comparison of the voltages of the main and pilot fused circuits phase wise. VDSPVC
output can be configured to block voltage dependent protection functions such as high-
speed distance protection, undervoltage relays, underimpedance relays and so on.
IEC 61850 IEC 60617
identification identification
VDSPVC VTS
1MRK 505 337-UUS -
ANSI/IEEE C37.2
device number
60
Application manual