User Manual

System overview
3.5 Overview of the functions
3UG4 / 3RR2 monitoring relays
34 Manual, 02/2013, NEB927043002000/RS-AA/002
3.5.2 3UG45 / 3UG46 monitoring relays
Table 3- 16 Functions of the 3UG45/3UG46 monitoring relays for analog and digital setting
Monitoring relays
3UG45 3UG46
Function
01 11 12 13 8 14 15 16 17 18 31 32 33 21 22 41 24 25 51
Line monitoring and voltage monitoring
Monitoring for phase sequence — ✓ ✓ ✓ — ✓ ✓ ✓ ✓ ✓ — — — — — — — — —
Monitoring for phase failure — ○
1
)
✓ ✓ —✓ ✓ ✓ ✓ ✓ — — — — — — — — —
Monitoring for asymmetry — — 10
%
20
%
—✓ ○
2)
○
2)
✓ ✓ — — — — — — — — —
Monitoring for undervoltage — — — 3p — 3p 3p 3p 3p 3p 1p 1p 1p — — — — — —
Monitoring for overvoltage — — — — — — 3p 3p 3p 3p 1p 1p 1p — — — — — —
Monitoring for neutral failure — — — — — — — ✓ — ✓ — — — — — — — — —
Automatic direction of rotation
correction in the case of
incorrect phase sequence
— — — — —— — — ✓ ✓ — — — — — — — — —
Power factor monitoring and current monitoring
Monitoring for undercurrent — — — — — — — — — — — — — 1p 1p 1p — — —
Monitoring for overcurrent — — — — — — — — — — — — — 1p 1p 1p — — —
Active current monitoring — — — — —— — — — — — — — — — ✓ — — —
Apparent current monitoring — — — — — — — — — — — — — ✓ ✓ — — — —
Power factor monitoring — — — — —— — — — — — — — — — ✓ — — —
Fault current monitoring/insulation monitoring
Monitoring for fault
current/ground fault
— — — — —— — — — — — — — — — — ✓ ✓ —
Insulation monitoring — — — — ✓ — — — — — — — — — — — — — —
Filling level monitoring
Monitoring for filling level
overshoot/resistance overshoot
✓ — — — —— — — — — — — — — — — — — —
Monitoring for filling level
undershoot/resistance
undershoot
✓ — — — —— — — — — — — — — — — — — —
Speed monitoring
Monitoring for speed overshoot — — — — —— — — — — — — — — — — — — ✓
Monitoring for speed
undershoot
— — — — —— — — — — — — — — — — — — ✓