Siemens SIPROTEC 4 7UT6 Series Manual page 479

Differential Protection
Differential protection + Basic elements
Differential protection transformer, generator, motor, busbar
Overload protection in accordance with IEC 60354 for a winding
Lock out
Time overcurrent protection, phases: Ι>, Ι>>, Ιp (inrush restraint)
Time overcurrent protection 3Ι0: 3Ι0>, 3Ι0>>, 3Ι0p (inrush restraint)
Time overcurrent protection Earth: ΙE>, ΙE>>, ΙEp (inrush restraint)
Differential Protection + Basic Functions + Additional Functions
Restricted earth fault protection
Additional Functions1) Restricted earth fault protection Definite-time, single-phase, e.g. high-impedance
earth fault protection (87G without resistor or varistor)
Unbalanced load protection
Breaker failure protection
Trip circuit supervision
16.7 Hz, Railway Protection Transformer + Generator
16,7 Hz, Railway Protection Transformer + Generator + Busbar
1) Varistor and series resistor are accessories
external RTD box required
2)
3) external resistor and varistor required
4) Only in connection with position 16 = 1 or 3
Additional Voltage Function
Without voltage function
With overexcitation (Volt/Hertz) protection and voltage/power measurement (only available for 7UT633)
Over- and undervoltage protection, frequency protection, load direction protection, fuse-failure monitor (only
available for 7UT633)
Additional function general
Without
Multiple protection function
Unassigned configurable protection blocks
Multiple protection function + unassigned configurable protection blocks
1) Only if already available at position 14
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
A.3 1.1.3 Differential Protection 7UT633 and 7UT635 for 3 to 5 measuring locations
3)
4)
1)
2)
1)
or tank leakage protection,
4)
1)
Ordering Information and Accessories
Pos. 14
A
B
C
D
Pos. 15
A
B
C
Pos. 16
0
1
2
3
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