Siemens 7SR18 Solkor - Table 1.4-1 7 SR18 Ordering Options

7SR18 Description Of Operation
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Table 1.4-1 7SR18 Ordering Options
7 S R 1 8 1 - -0 A0
Protection Product Family
Differential Protection
8
Case size
E6
2)
1
I/O and Fascia
3 Binary Inputs, 5 Binary Outputs, 18 LEDs
1 C
2 C
6 Binary Inputs, 8 Binary Outputs, 18 LEDs
3
6 Binary Inputs, 8 Binary Outputs, 10 LEDs + (6 keys each with LED)
4
Measuring input
4 CTs (1 A or 5 A)
1
4 CTs (1 A or 5 A), 3 VTs (40 V to 160 V)
2 C
Auxiliary voltage
24 V DC to 250 V DC, 100 V AC to 230 V AC, binary input threshold 19 V DC
M
24 V DC to 250 V DC, 100 V AC to 230 V AC, binary input threshold 88 V DC
N
Protection Signalling Channel
Optical fibre link (820 nm) (ST connection) 2 km
1)
B
1
Optical fibre link (1300 nm) (LC connection) 40 km
1)
C
Data Communication Interface
USB front port, RS485 (Terminal block) rear port
1 2
USB front port, RS485 (Terminal block) rear port, Electrical Ethernet RJ45 (x2) rear port
7 7
USB front port, RS485 (Terminal block) rear port, Optical Ethernet Duplex (x2) rear port
8 7
Protocol
IEC 60870-5-103 and Modbus RTU and DNP 3.0 (user selectable)
2
IEC 60870-5-103 and Modbus RTU and DNP 3.0 (user selectable) and IEC61850
7
Spare
0
Protection Function Packages
Standard version
C
87L 3-Phase differential (with variable settings)
87HS 3-Phase Differential High Set
85 Inter-Trip
50 Instantaneous phase fault overcurrent
50G/50N Instantaneous earth fault
51 Time delayed phase fault overcurrent
51G/51N Time delayed earth fault
50LC Line Check
37 Undercurrent
46NPS Negative phase sequence overcurrent
49 Thermal overload
50BF Circuit breaker fail
46BC Broken conductor/load unbalance
60CTS-I CT Supervision
74T&C Trip & Close circuit supervision
51c Cold load pickup
81HBL2 Inrush Detector
Programmable Logic
For variants with 3 x VT inputs as above plus
51V Voltage Controlled Overcurrent
60CTS CT Supervision
60 VTS VT supervision
67/50, 67/51 Directional Overcurrent
67 G/N Directional Earth Fault
Version C - plus
D
79 Autoreclose
Additional Functionality
No additional functionality
A
Spare
0
3 Binary Inputs, 5 Binary Outputs, 10 LEDs + (6 keys each with LED)
1)
Refer to Technical Manual
2)
Standard Version Cover - No Push Buttons