Settings; Information List - Siemens Siprotec 7UM611 Manual

Use as Earth Short- For low-voltage machines with incorporated neutral conductor or machines with low-
Circuit Protection impedance earthed starpoint, the time-overcurrent protection of the phase branches
already is an earth short-circuit protection, since the short-circuit current also flows
through the faulty phase. If the sensitive earth current detection nevertheless is be
used as earth short-circuit protection, an external intermediate transformer must be
employed to ensure that the thermal limit values (15 A continuous, 100 A for <10 s,
300 A for <1 s) of this measuring input are not exceeded by the short-circuit current.

2.22.3 Settings

Addr. Parameter
5101 O/C PROT. Iee>
5102 IEE>
5103 T IEE>
5104 IEE>>
5105 T IEE>>
5106 IEE<

2.22.4 Information List

No. Information
1202 >BLOCK IEE>>
1203 >BLOCK IEE>
1221 IEE>> picked up
1223 IEE>> TRIP
1224 IEE> picked up
1226 IEE> TRIP
1231 >BLOCK Sens. E
1232 IEE OFF
1233 IEE BLOCKED
1234 IEE ACTIVE
5396 Fail. REF Iee<
7UM61 Manual
C53000-G1176-C127-3
2.22 Sensitive Earth Fault Protection (ANSI 51GN, 64R)
Setting Options
OFF
ON
Block relay
2 .. 1000 mA
0.00 .. 60.00 sec; ∞
2 .. 1000 mA
0.00 .. 60.00 sec; ∞
1.5 .. 50.0 mA; 0
Type of In-
formation
EM >BLOCK IEE>>
EM >BLOCK IEE>
AM IEE>> picked up
AM IEE>> TRIP
AM IEE> picked up
AM IEE> TRIP
EM >BLOCK sensitiv earth current prot.
AM Earth current prot. is swiched OFF
AM Earth current prot. is BLOCKED
AM Earth current prot. is ACTIVE
AM Failure R/E/F protection Iee<
Default Setting
OFF Sensitive Earth Current Protec-
tion
10 mA Iee> Pickup
5.00 sec T Iee> Time delay
23 mA Iee>> Pickup
1.00 sec T Iee>> Time Delay
0.0 mA Iee< Pickup (Interrupted Circuit)
Comments
Comments
139