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Functions
2.2 Voltage Protection 27, 59
Dropout Threshold of the Undervoltage Protection
The dropout thresholds of the 59-1 element and the 59-2 element can be parameterized via the dropout ratio
r = V
/V
dropout
pickup
applies to r:
r · (configured pickup threshold) ≤ 130 V with connection of phase-to-phase voltages and phase-to-ground
voltages) or
r· (configured pickup threshold) ≤ 225 V with calculation of the measured values from the connected voltages
(e.g. calculated phase-to-phase voltages from the connected phase-to-ground voltages).
The minimum hysteresis is 0.6 V.
NOTE
i
i
If a setting is selected such that the dropout threshold (= pickup threshold · dropout ratio) results in a
greater value than 130 V/225 V, it will be limited automatically. No error message occurs.
Settings
2.2.5
Addresses which have an appended "A" can only be changed with DIGSI, under "Additional Settings".
Addr.
Parameter
5001
FCT 59
5002
59-1 PICKUP
5003
59-1 PICKUP
5004
59-1 DELAY
5005
59-2 PICKUP
5006
59-2 PICKUP
5007
59-2 DELAY
5009
59 Phases
5015
59-1 PICKUP V2
5016
59-2 PICKUP V2
5017A
59-1 DOUT RATIO
5018A
59-2 DOUT RATIO
5019
59-1 PICKUP V1
5020
59-2 PICKUP V1
5030
59 Vp>
5031
59 Vp>
5032
59 Vp> V1
5033
59 Vp> V2
5034
59 T Vp>
5035
Pickup - Time
5101
FCT 27
5102
27-1 PICKUP
5103
27-1 PICKUP
5106
27-1 DELAY
44
(5113 27-1 DOUT RATIO or 5114 27-2 DOUT RATIO). The following marginal condition
Setting Options
OFF
ON
Alarm Only
20 .. 260 V
20 .. 150 V
0.00 .. 100.00 sec
20 .. 260 V
20 .. 150 V
0.00 .. 100.00 sec
All phases
Largest phase
2 .. 150 V
2 .. 150 V
0.90 .. 0.99
0.90 .. 0.99
20 .. 150 V
20 .. 150 V
20 .. 260 V
20 .. 150 V
20 .. 150 V
2 .. 150 V
0.1 .. 5.0 sec
1.00 .. 20.00
0.01 .. 999.00
OFF
ON
Alarm Only
10 .. 210 V
10 .. 120 V
0.00 .. 100.00 sec
Default Setting
Comments
OFF
59 Overvoltage Protection
110 V
59-1 Pickup
110 V
59-1 Pickup
0.50 sec
59-1 Time Delay
120 V
59-2 Pickup
120 V
59-2 Pickup
0.50 sec
59-2 Time Delay
Largest phase
Phases for 59
30 V
59-1 Pickup V2
50 V
59-2 Pickup V2
0.95
59-1 Dropout Ratio
0.95
59-2 Dropout Ratio
110 V
59-1 Pickup V1
120 V
59-2 Pickup V1
110 V
59 Pickup Vp>
110 V
59 Pickup Vp>
110 V
59 Pickup Vp> V1
30 V
59 Pickup Vp> V2
5.0 sec
59 T Vp> Time Delay
Pickup - Time
OFF
27 Undervoltage Protection
75 V
27-1 Pickup
45 V
27-1 Pickup
1.50 sec
27-1 Time Delay
C53000-G1140-C233-4, Edition 07.2018
SIPROTEC 4, 7RW80, Manual
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