Siemens 6MD85 - Page 122

Currents, Protection-Class Current Transformer
I
A
, I
B
, I
C
, 3I
0
Current range
A secondary
< 100 I
rated
Rated currents
Measuring range
Frequency range
1 A, 5 A
0.1 to 25 A
49 Hz to 51 Hz at f
rated
= 50 Hz
59 Hz to 61 Hz at f
rated
= 60 Hz
Tolerance 0.1 % of the measured value in the above mentioned
measuring range
Frequency range (expanded) 40 Hz to 60 Hz at f
rated
= 50 Hz
50 Hz to 70 Hz at f
rated
= 60 Hz
Tolerance 0.3 % of the measured value in the above mentioned
measuring range
Currents, Sensitive Ground-Current Transformer
3I
0
Current range
A secondary
< 1.6 I
rated
Rated currents
Measuring range
Frequency range
1 A, 5 A
(0.1 to 1.6) · I
rated
49 Hz to 51 Hz at f
rated
= 50 Hz
59 Hz to 61 Hz at f
rated
= 60 Hz
Tolerance 0.1 % of the measured value in the above mentioned
measuring range
Frequency range (expanded) 40 Hz to 60 Hz at f
rated
= 50 Hz
50 Hz to 70 Hz at f
rated
= 60 Hz
Tolerance 0.3 % of the measured value in the above mentioned
measuring range
Phase Angle
ΦU
°
Frequency range 47.5 Hz to 52,5 Hz at f
rated
= 50 Hz
57.5 Hz to 62,5 Hz at f
rated
= 60 Hz
Tolerance ΦU 0.2 ° at rated voltage
ΦI °
Frequency range 47.5 Hz to 52.5 Hz at f
rated
= 50 Hz
57.5 Hz to 62.5 Hz at f
rated
= 60 Hz
Tolerance ΦI 0.2 ° at rated current
Power Values
Active power P
W secondary
Measuring range
Voltage range
Current range
Frequency range
|cosφ| ≥ 0.01
(0.8 to 1.2) · V
rated
(0.1 to 2) · I
rated
49 Hz to 51 Hz at f
rated
= 50 Hz
59 Hz to 61 Hz at f
rated
= 60 Hz
Technical Data
11.47 Operational Measured Values and Statistical Values
SIPROTEC 5, High-Voltage Bay Controller, Manual 1217
C53000-G5040-C015-A, Edition 05.2018