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Pickup (optional)
Overcurrent Pickup
Overcurrent Iph>>
Dropout to pickup ratio
Measuring tolerances for sinusoidal measured values
Voltage and angle-dependent current pickup (U/I/ϕ) (selectable)
Characteristic
Minimum current Iph>
Current in fault angle range Iϕ
Undervoltage phase-earth Uphe
(segregated for Iph>, Iϕ> and Iph>>)
Undervoltage phase-phase Uphph
(segregated for Iph>, Iϕ> and Iph>>)
Lower threshold angle ϕ>
Upper threshold angle ϕ<
Dropout to pickup ratio
Iph>, If>
Uphe, Uphph
Measuring tolerances for sinusoidal measured values
Values of U, I
Angle ϕ
Impedance starting (selectable)
Minimum current Iph>
The thresholds of the zone set to the highest level are relevant taking into consideration the corresponding direction
Dropout/pickup ratio
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
for I
= 1 A
0.25 A to 10.00 A
N
for I
= 5 A
1.25 A to 50.00 A
N
Approx. 0.95
± 5 %
Different stages with settable inclinations
for I
= 1 A
0.10 A to 4.00 A
N
for I
= 5 A
0.50 A to 20.00 A
N
for I
= 1 A
0.10 A to 8.00 A
N
for I
= 5 A
0.50 A to 40.00 A
N
20 V to 70 V
40 V to 130 V
30° to 60°
90° to 120°
Approx. 0.95
Approx. 1.05
± 5 %
± 3°
for I
= 1 A
0.05 A to 4.00 A
N
for I
= 5 A
0.25 A to 20.00 A
N
Approx. 1.05
Technical Data
4.6 Distance Protection (optional)
Increments 0.01 A
Increments 0.01 A
Increments 0.01 A
Increments 1 V
Increments 1 V
In increments of 1°
In increments of 1°
Increments 0.01 A
593
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