Addr. Parameter Function C Setting Options Default Setting Comments
3721 3U0>(>) (or Ux) Voltage Prot. OFF
Alarm Only
ON
U>Alarm U>>Trip
OFF Operating mode 3U0 (or
Ux) overvoltage
3722 3U0> Voltage Prot. 1.0 .. 220.0 V 30.0 V 3U0>: Pickup value (or
Ux>)
3723 T 3U0> Voltage Prot. 0.00 .. 100.00 sec 2.00 sec 3U0>: Time delay (or
Ux>)
3724 3U0>> Voltage Prot. 1.0 .. 220.0 V 50.0 V 3U0>>: Pickup value (or
Ux>>)
3725 T 3U0>> Voltage Prot. 0.00 .. 100.00 sec 1.00 sec 3U0>>: Time delay (or
Ux>>)
3728A 3U0>(>) Stabil. Voltage Prot. ON
OFF
ON 3U0>(>): Stabilization
3U0-Measurement
3729A 3U0>(>) RESET Voltage Prot. 0.30 .. 0.99 0.95 3U0>(>): Resetting ratio
(or Ux)
3731 U1>(>) Voltage Prot. OFF
Alarm Only
ON
U>Alarm U>>Trip
OFF Operating mode U1 over-
voltage prot.
3732 U1> Voltage Prot. 2.0 .. 220.0 V 150.0 V V1>: 5A
3733 T U1> Voltage Prot. 0.00 .. 100.00 sec 2.00 sec V1>: Time delay
3734 U1>> Voltage Prot. 2.0 .. 220.0 V 175.0 V V1>>: 5A
3735 T U1>> Voltage Prot. 0.00 .. 100.00 sec 1.00 sec V1>>: Time delay
3739A U1>(>) RESET Voltage Prot. 0.30 .. 0.99 0.98 V1>(>): Dropout to
pickup ratio
3741 U2>(>) Voltage Prot. OFF
Alarm Only
ON
U>Alarm U>>Trip
OFF Operating mode U2 over-
voltage prot.
3742 U2> Voltage Prot. 2.0 .. 220.0 V 30.0 V V2> 5A
3743 T U2> Voltage Prot. 0.00 .. 100.00 sec 2.00 sec V2> Time delay
3744 U2>> Voltage Prot. 2.0 .. 220.0 V 50.0 V V2>>: 5A
3745 T U2>> Voltage Prot. 0.00 .. 100.00 sec 1.00 sec V2>>: Time delay
3749A U2>(>) RESET Voltage Prot. 0.30 .. 0.99 0.98 V2>(>): Dropout to
pickup ratio
3751 Uph-e<(<) Voltage Prot. OFF
Alarm Only
ON
U<Alarm U<<Trip
OFF Operating mode Ph-E
undervoltage prot.
3752 Uph-e< Voltage Prot. 1.0 .. 100.0 V 30.0 V Uph<: 5A
3753 T Uph-e< Voltage Prot. 0.00 .. 100.00 sec 2.00 sec Uph<: Time delay
3754 Uph-e<< Voltage Prot. 1.0 .. 100.0 V 10.0 V Uph<<: 5A
3755 T Uph-e<< Voltage Prot. 0.00 .. 100.00 sec 1.00 sec Uph<<: Time delay
3758 CURR.SUP. Uphe< Voltage Prot. ON
OFF
ON Uph<(<): Current criterion
3759A Uph-e<(<) RESET Voltage Prot. 1.01 .. 1.20 1.05 Uph<(<): Dropout to
pickup ratio
Functions, Settings, Information
E.2 Settings
SIPROTEC 4, 7VK61, Manual 305
C53000-G1176-C159-5, Edition 05.2018