ABB Relion 670 Series Applications Manual page 270

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Table of Contents

Secondary system supervision

Fuse failure supervision VDSPVC (60)

Identification

Function description

Fuse failure supervision

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.

identification

GUID-9C5BA1A7-DF2F-49D4-A13A-C6B483DDFCDC v2

ANSI/IEEE C37.2

identification

device number

GUID-AD63BF6C-0351-4E48-9FB2-9AB5CF0C521E v2

1MRK 511 401-UUS F

GUID-109434B0-23E5-4053-9E6E-418530A07F9C v2

Bay control REC670

Application manual