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SME2-IS - Manual - 06- 2021
TECHNICAL CHARACTERISTICS
Certifications
Reference standards EN 50263
CE conformity
• EMC Directive 2014/30/EC
• Low Voltage Directive 2014/35/EC
Type testing IEC 60255-1
3.2 INPUT CIRCUITS
Auxiliary circuit power
U
aux
Voltage
• Nominal value (range) 24 V-
• Operating range 19...29 V-
Max. time to full operation 15 s
Max power draw 14 W
Combined active sensor input circuits
Nominal frequency f
n
50 or 60 Hz
15.5 mV
Secondary nominal voltage (I direct - I
np
= 500 A)
{
50 mV
150 mV
Secondary nominal voltage (with U
np
= 10 kV) 1.0 V
Connections RJ45 socket
Combined passive sensor input circuits
Reference standards ENEL GSCT005
Nominal frequency f
n
50 or 60 Hz
15.5 mV
Secondary nominal voltage (I derivative - I
np
= 500 A)
{
50 mV
150 mV
Secondary nominal voltage (with U
np
= 10 kV) 1.0 V
Connections RJ45 socket
Capacitive voltage divider input circuits
Reference standards ENEL DY1811
MV line nominal secondary voltage 6 ... 24 kV
MV side capacitive reactance 100...700 MΩ
Digital inputs
Number of inputs: 6
Circuit type: photocoupler
Range nominal range U
aux
Maximum current draw with excited input 3 mA
3.3 OUTPUT CIRCUITS
Final relays
Number 5
Signalling (K1...K3)
Contact type: Closing (SPST-NO, type A)
Nominal current 2 A
Nominal voltage 250 V
Interrupting capacity, DC (24 V, L/R = 40 ms) 0.2 A
Minimum switchable load 300 mW (5 V/ 5 mA)
Breaker command (K4, K5)
Contact type closing (SPST-NO, type A)
Nominal current 8 A
Nominal voltage / maximum switchable voltage 250 VAC/400 VAC
Interrupting capacity:
• DC (L/R = 40 ms) 50 W
• AC (λ = 0.4) 1250 VA
• Closing power (Make) 1000 W/VA
Maximum instantaneous current (0.5 s) 30 A
Current transformer
Measurements:
• Current 4-20 mA
• Voltage (xx...xx kV primary) 4-20 mA
• Positive active power (xx...xx kW primary) 12-20 mA
• Negative active power (xx...xx kW primary) 4-12 mA
• Positive reactive power (xx...xx kVAR primari) 12-20 mA
• Negative reactive power (xx...xx kVAR primari) 4-12 mA
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