Section 2: Hardware Description; General; Table 2.1-1 Summary Of 7Sr18 Relay Configuration - Siemens 7SR18 Solkor Manual

7SR18 Description Of Operation

Section 2: Hardware Description

2.1

General

The structure of the relays is based upon the Reyrolle Compact (RC) hardware platform. They are supplied in a
size E6 case (where 1 x E = width of approx. 26 mm). The hardware design provides commonality between
products and components across the Reyrolle Compact range of relays.
Table 2.1-1 Summary of 7SR18 Relay Configuration
Relay Current
Inputs
7SR1811-1 4
7SR1812-1 4
7SR1813-1 4
7SR1814-1 4
7SR1811-2 4
7SR1812-2 4
7SR1813-2 4
7SR1814-2 4
Relays are assembled from the following PCBs:
1) Front Fascia (order option)
CPU
9 configurable LEDs + 1 Relay Healthy LED plus 8 configurable LEDs (Option)
9 configurable LEDs + 1 Relay Healthy LED plus 6 Function Keys each with LED (Option)
2) Current Analogue / Output module
4 x Current + 5 x Binary Output (BO)
3) Voltage Analogue / Input / output module
3 x Voltage Transformer (VT) (Option)
3 x Binary Input (BI) + 3 x Binary Output (BO) (Option)
3 x Voltage Transformer (VT) + 3 x Binary Input (BI) + 3 x Binary Output (BO) (Option)
4) Power Supply
3 x Binary Input (BI) + RS485
5) Protection Signalling module
6) Communications Module (2x Electrical Ethernet for IEC 61850) or (2x Optical Ethernet for IEC 61850) (Option)
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Voltage Binary
Inputs Inputs
- 3
- 3
- 6
- 6
3 3
3 3
3 6
3 6
Binary LEDs
(Individual)
Outputs
5 18
5 10
8 18
8 10
5 18
5 10
8 18
8 10
©2018 Siemens Protection Devices Limited
Function
Keys (each
with LED)
0
6
0
6
0
6
0
6