Functions
2.20 Out-of-Step Protection (ANSI 78)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
174
2.20.4 Settings
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding second-
ary nominal current of the current transformer.
2.20.5 Information List
Addr. Parameter C Setting Options Default Setting Comments
3501 OUT-OF-STEP OFF
ON
Block relay
OFF Out-of-Step Protection
3502 I1> RELEASE 20.0 .. 400.0 % 120.0 % Pickup Current for Mea-
suring Release I1>
3503 I2< RELEASE 5.0 .. 100.0 % 20.0 % Pickup Current for Mea-
suring Release I2<
3504 Za 5A 0.04 .. 26.00 Ω 0.90 Ω Resistance Za of the
Polygon (width)
1A 0.20 .. 130.00 Ω 4.50 Ω
3505 Zb 5A 0.02 .. 26.00 Ω 2.40 Ω Reactance Zb of the
Polygon (reverse)
1A 0.10 .. 130.00 Ω 12.00 Ω
3506 Zc 5A 0.02 .. 26.00 Ω 0.72 Ω Reactance Zc of Polygon
(forward char.1)
1A 0.10 .. 130.00 Ω 3.60 Ω
3507 Zd - Zc 5A 0.00 .. 26.00 Ω 1.28 Ω Reactance Dif. Char.1 -
Char.2 (forward)
1A 0.00 .. 130.00 Ω 6.40 Ω
3508 PHI POLYGON 60.0 .. 90.0 ° 90.0 ° Angle of Inclination of the
Polygon
3509 REP. CHAR. 1 1 .. 10 1 Number of Power Swing:
Characteristic 1
3510 REP. CHAR. 2 1 .. 20 4 Number of Power Swing:
Characteristic 2
3511 T-HOLDING 0.20 .. 60.00 sec 20.00 sec Holding Time of Fault De-
tection
3512 T-SIGNAL 0.02 .. 0.15 sec 0.05 sec Min. Signal Time for
Annun. Char. 1/2
No. Information Type of In-
formation
Comments
5053 >BLOCK O/S SP >BLOCK out-of-step protection
5061 O/S OFF OUT Out-of-step protection is switched OFF
5062 O/S BLOCKED OUT Out-of-step protection is BLOCKED
5063 O/S ACTIVE OUT Out-of-step protection is ACTIVE
5067 O/S char. 1 OUT Out-of-step pulse of characteristic 1
5068 O/S char. 2 OUT Out-of-step pulse of characteristic 2
5069 O/S det. char.1 OUT Out-of-step characteristic 1 picked up
5070 O/S det. char.2 OUT Out-of-step characteristic 2 picked up
5071 O/S TRIP char.1 OUT Out-of-step TRIP characteristic 1
5072 O/S TRIP char.2 OUT Out-of-step TRIP characteristic 2
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