CAUTION
Current Transformer Circuits
²
The secondary circuit of a live CT must not be open circuited. Non-observance of this precaution can
result in injury to personnel or damage to equipment.
CAUTION
External Resistors
²
Where external resistors are fitted to relays, these may present a danger of electric shock or burns, if
touched.
CAUTION
Fibre Optic Communication
²
Where fibre optic communication devices are fitted, these should not be viewed directly. Optical
power meters should be used to determine the operation or signal level of the device.
CAUTION
Front Fascia
²
For safety reasons the following symbols are displayed on the device.
²
Dielectric Test Voltage 2 kV
²
Impulse Test Above 5 kV
²
Caution: Refer to Equipment Documentation
²
Caution: Risk of Electric Shock
Modular Concept
The 7SR5 platform is common to a number of devices and so ensures the consistency and integrity of all func-
tionalities across the device series:
•
Modular system design in hardware, software, and communication
•
Functional integration of various applications, such as protection, control, and fault recorder
•
Consistent functionality across the entire family of devices
•
Upgrade path using software libraries and updates
Introduction
22 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019
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