11.5
Energizing Inputs (SIM0005)
Table 294: Table 9: Energizing Inputs (SIM0005)
Description
Value
Current sensor input
Rated current voltage (in sec-
ondary side)
75 mV ... 9000 mV
4
Continuous voltage with-
stand
125 V
Input impedance at 50/60Hz 2 MΩ
Voltage sensor input
Rated voltage
6 kV … 40,5 kV
5
Continuous voltage with-
stand
50 V
Input impedance at 50/60Hz 2 MΩ
11.6
Binary inputs
Table 295: Binary inputs
Description
Value
Operating range
±20% of the rated voltage
Rated voltage
24...250 V DC
Current drain
1.6...1.9 mA
Power consumption
31.0...570.0 mW
Threshold voltage
16...176 V DC
Reaction time
<3 ms
Adjust the binary input threshold voltage correctly. The threshold voltage
should be set to 70% of the nominal auxiliary voltage. The factory
default is 16 V to ensure the binary inputs’ operation regardless of the
auxiliary voltage used (24, 48, 60, 110, 125, 220 or 250 V DC). However, the
default value is not optimal for the higher auxiliary voltages. The binary
input threshold voltage should be set as high as possible to prevent
any inadvertent activation of the binary inputs due to possible external
disturbances. At the same time, the threshold should be set so that
the correct operation is not jeopardized in case of undervoltage of the
auxiliary voltage.
4
Equals the current range of 40….40000 A with 80A, 3mV/Hz Rogowski
5
Covers 6 kV…40.5 kV sensors with division ratio of 10 000:1. Secondary voltages 600mV/√3 …
4,05V / √3. Range up to 2 x Rated
Technical data
1MRS758407 C
258
SMU615
Technical Manual
Summary of Contents for Relion SMU615
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