Siemens SIPROTEC 4 7UT6 Series - Frequency Measurement Via the Positive Phase-Sequence Voltage U1

For rated direct voltages DC 220 V/250 V U
high
≥ DC 176 V
U
low
≤ DC 88 V
Maximum permissible direct voltage DC 300 V
Input interference suppression 220 nF coupling capacitance at 220 V with
recovery time > 60 ms
Output Relay
Signalling/Trip Relays
1
)
Device
7UT612
7UT613
7UT633
7UT635
Number
4 (allocatable)
8 (allocatable)
24 (allocatable)
24 (allocatable)
Switching capability MAKE 1000 W/VA
Switching capability BREAK 30 VA
40 W resistive
25 W at L/R ≤ 50 ms
Alarm relay 1 with 1 NO contact or 1 NC contact (select-
able)
Switching capability MAKE 1000 W/VA
Switching capability BREAK 30 VA
40 W resistive
25 W at L/R ≤ 50 ms
Switching voltage 250 V
Permissible current per contact 5 A continuous
30 A for 0.5 s (NO contact)
Permissible total current
on common paths
5 A continuous
30 A for 0.5 s (NO contact)
Pick-up times
Make contact high-speed 5 ms
Changeover contact 8 ms
High speed (only make contact)
2
)
<1 ms
2
) for order option 7UT633, 7UT635
1
) UL-listed with the following rated data:
AC 120 V Pilot duty, B300
AC 240 V Pilot duty, B300
AC 240 V 5 A General Purpose
24 VDC 5 A General Purpose
DC 48 V 0.8 A General Purpose
DC240 V 0.1 A General Purpose
AC 120 V 1/6 hp (4.4 FLA)
AC 240 V 1/2 hp (4.9 FLA)
Frequency Measurement via the Positive Phase-sequence Voltage U1
Frequency Range for Rated Frequency 50/60 Hz
Lower frequency limit
9.25 Hz
4.1.4
Technical Data
4.1 General
398 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016