•
User friendly operation from the front fascia or from the Reydisp software tool via the data comms ports.
•
Display of measured and metered values at the front.
•
Storage of system demand data measured values.
•
Storage of data relating to system faults with real-time tagging.
•
Storage of instantaneous analogue values for fault records and analysis.
•
Continuous monitoring of the measurands as well as the device hardware and software.
•
Communication with central control and storage devices possible via the device interface.
•
Synchronizable clock
The ordering structure for the devices is very straightforward as the devices have flexible interfaces and
ordering options are minimized
Product Description
Order No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
7SR54 Transformer Relay
7
S
R
5
4
n
n
-
n
A
A
n
6
-
0
A
A
0
|
|
-
|
|
2 Wdg. Transformer: I/O Configurations
6
7
-
8
|
8 I, 16 BI, 8 BO
2
0
-
2
|
8 I, 4 V, 12 BI, 8 BO
2
1
-
1
|
8 I, 4 V, 37 BI, 18 BO
2
1
-
6
|
|
|
-
|
|
3 Wdg. Transformer: I/O Configurations
6
7
-
8
|
12 I, 24 BI, 10 BO
3
0
-
3
|
12 I, 4 V, 35 BI, 16 BO
3
1
-
5
|
|
CPU/Data Comms
11
Standard: 1 x USB (front), RS485 (rear) ports, plus:-
|
2 x RJ45 ports
1
2 x Optical LC ports
2
Case & Fascia
Housing width 2/3 x 19" (size 12), Housing height 4U
The multifunctional 7SR5 protection devices digitally process all tasks from acquisition of the measurands to
controlling the circuit‑breaker.
Front Fascia
The fascia Light Emitting Diodes (LEDs) and Liquid Crystal Display (LCD) provide information on the device
function and report events, states, and measured values.
The fascia keypad enables on-site operation of the device without the need for the Reydisp software tool.
Device information such as setting parameters, operating and fault indications or measured values can be
displayed, and setting parameters changed.
System equipment can be controlled from the front fascia when the 7SR5 is suitably configured.
Microcomputer System
All device functions are processed in the device CPU, these include, for example:
•
Filtering and processing of the measurands
•
Continuous monitoring of the measurands
•
Monitoring of the pickup conditions for the individual protection functions
Introduction
Reyrolle 7SR5, Transformer Protection Device, Device Manual
21
C53000-G7040-C015-1, Edition 11.2019
