Siemens SIPROTEC

Appendix
A.7 Settings
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
702
3755 T Uph-e<< Voltage Prot. 0.00 .. 100.00 sec; ∞ 1.00 sec T Uph-e<< Time Delay
3758 CURR.SUP. Uphe< Voltage Prot. ON
OFF
ON Current supervision (Uph-e)
3759A Uph-e<(<) RESET Voltage Prot. 1.01 .. 1.20 1.05 Uph-e<(<) Reset ratio
3761 Uph-ph<(<) Voltage Prot. OFF
Alarm Only
ON
U<Alarm U<<Trip
OFF Operating mode Uph-ph under-
voltage prot.
3762 Uph-ph< Voltage Prot. 1.0 .. 175.0 V; 0 50.0 V Uph-ph< Pickup
3763 T Uph-ph< Voltage Prot. 0.00 .. 100.00 sec; ∞ 2.00 sec T Uph-ph< Time Delay
3764 Uph-ph<< Voltage Prot. 1.0 .. 175.0 V; 0 17.0 V Uph-ph<< Pickup
3765 T Uphph<< Voltage Prot. 0.00 .. 100.00 sec; ∞ 1.00 sec T Uph-ph<< Time Delay
3768 CURR.SUP.Uphph< Voltage Prot. ON
OFF
ON Current supervision (Uph-ph)
3769A Uphph<(<) RESET Voltage Prot. 1.01 .. 1.20 1.05 Uph-ph<(<) Reset ratio
3771 U1<(<) Voltage Prot. OFF
Alarm Only
ON
U<Alarm U<<Trip
OFF Operating mode U1 undervolt-
age prot.
3772 U1< Voltage Prot. 1.0 .. 100.0 V; 0 30.0 V U1< Pickup
3773 T U1< Voltage Prot. 0.00 .. 100.00 sec; ∞ 2.00 sec T U1< Time Delay
3774 U1<< Voltage Prot. 1.0 .. 100.0 V; 0 10.0 V U1<< Pickup
3775 T U1<< Voltage Prot. 0.00 .. 100.00 sec; ∞ 1.00 sec T U1<< Time Delay
3778 CURR.SUP.U1< Voltage Prot. ON
OFF
ON Current supervision (U1)
3779A U1<(<) RESET Voltage Prot. 1.01 .. 1.20 1.05 U1<(<) Reset ratio
3802 START Fault Locator Pickup
TRIP
Pickup Start fault locator with
3805 Paral.Line Comp Fault Locator NO
YES
YES Mutual coupling parall.line com-
pensation
3806 Load Compensat. Fault Locator NO
YES
NO Load Compensation
3807 two ended Fault Locator ON
OFF
ON two ended fault location
3811 Tmax OUTPUT BCD Fault Locator 0.10 .. 180.00 sec 0.30 sec Maximum output time via BCD
3901 FCT BreakerFail Breaker Failure ON
OFF
ON Breaker Failure Protection
3902 I> BF Breaker Failure 1A 0.05 .. 20.00 A 0.10 A Pick-up threshold I>
5A 0.25 .. 100.00 A 0.50 A
3903 1p-RETRIP (T1) Breaker Failure NO
YES
YES 1pole retrip with stage T1 (local
trip)
3904 T1-1pole Breaker Failure 0.00 .. 30.00 sec; ∞ 0.00 sec T1, Delay after 1pole start (local
trip)
3905 T1-3pole Breaker Failure 0.00 .. 30.00 sec; ∞ 0.00 sec T1, Delay after 3pole start (local
trip)
3906 T2 Breaker Failure 0.00 .. 30.00 sec; ∞ 0.15 sec T2, Delay of 2nd stage (busbar
trip)
3907 T3-BkrDefective Breaker Failure 0.00 .. 30.00 sec; ∞ 0.00 sec T3, Delay for start with defective
bkr.
3908 Trip BkrDefect. Breaker Failure NO
with T1-trip
with T2-trip
w/ T1/T2-trip
NO Trip output selection with defec-
tive bkr
3909 Chk BRK CONTACT Breaker Failure NO
YES
YES Check Breaker contacts
3912 3I0> BF Breaker Failure 1A 0.05 .. 20.00 A 0.10 A Pick-up threshold 3I0>
5A 0.25 .. 100.00 A 0.50 A
3913 T2StartCriteria Breaker Failure With exp. of T1
Parallel withT1
Parallel withT1 T2 Start Criteria
3921 End Flt. stage Breaker Failure ON
OFF
OFF End fault protection
3922 T-EndFault Breaker Failure 0.00 .. 30.00 sec; ∞ 2.00 sec Trip delay of end fault protection
Addr. Parameter Function C Setting Options Default Setting Comments