7SR21 & 7SR22 - Installation Guide
Unrestricted Page 6 of 36
©2018 Siemens Protection Devices Limited
Section 2: Equipment Operating
Conditions
2.1
Current Transformer Circuits
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.
2.2
External Resistors
Where external resistors are fitted to relays, these may present a danger of electric shock or burns, if touched.
2.3
Fibre Optic Communication
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.
2.4
Front Cover
The front cover provides additional securing of the relay element within the case. The relay cover should be in
place during normal operating conditions.
2.5
Disposal
The Relay should be disposed of in a manner which does not provide a threat to health or the environment. All
laws and regulations specific to the country of disposal should be adhered to.
2.5.1
Environmental Protection Hints
Disposal of Old Equipment and Batteries (Applicable only for European Union and Countries with a
Recycling System)
The disposal of our products and possible recycling of their components after decommissioning has to be carried
out by an accredited recycling company, or the products/components must be taken to applicable collection
points. Such disposal activities must comply with all local laws, guidelines and environmental specifications of the
country in which the disposal is done. For the European Union the sustainable disposal of electronic scrap is
defined in the respective regulation for "waste electrical and electronic equipment" (WEEE).
The crossed-out wheelie bin on the products, packaging and/or accompanying
documents means that used electrical and electronic products and batteries must not be
mixed with normal household waste.
According to national legislation, penalties may be charged for incorrect disposal
of such waste
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Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
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Page 470: ...7SR220 Technical Manual Chapter 4 Page 90 of 96 2017 Siemens Protection Devices Limited ...
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