PD IEC/TR 62711:2011
Current
The latest, up-to-date edition.
Mnemonics and designations of symbols for measuring relays, instruments and related device
Hardcopy , PDF
English
12-10-2011
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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Measuring relay symbols
5 Measuring instruments
6 Mnemonics and designations for measuring
relays and instruments
Bibliography
Gives recommendations for consistent use of mnemonics and qualifying symbols to be applied to symbols representing devices used in systems for monitoring, protection, switching, and controlling of apparatus in electrical substations, generating stations, power utilization and conversion facilities, and equipment designed for automatic protection of power systems.
| Committee |
GEL/3
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Technical Report provides recommendations for consistent use of mnemonics and qualifying symbols to be applied to symbols representing devices used in systems for monitoring, protection, switching, and controlling of apparatus in electrical substations, generating stations, power utilization and conversion facilities, and equipment designed for automatic protection of power systems. The recommendations are intended for designers, manufacturers and engineers of such systems.
For symbols of measuring relay and measuring instrument, it is intended to serve two purposes, namely:
Give a review of standardized designations (as defined in this report);
Limit the range of possible variants (after final standardization and introduction in IEC 60617).
Symbols for measuring relays are symbols in which the functional behaviour of an element, mostly because of its complexity, is described by qualifying symbols e.g. IEC 60617-S00328 (2001-07), IEC 60617-S00337 (2001-07), particularly by referring to supporting documentation; the relevant rules and explanations are to be found in IEC 60617 in the application notes associated with the symbols, e.g. IEC 60617-S00327 (2001-07) (A00091 through A00094).
Symbols for indicating, recording or integrating instruments are symbols in which the functional behaviour of an element is fully described by standardized means. The relevant rules and explanations are to be found in IEC 60617 in the application notes associated with the symbols IEC 60617-S00910 (2001-07), IEC 60617-S00911 (2001-07) and IEC 60617-S00912 (A00144 through A00147).
| Standards | Relationship |
| IEC TR 62711:2011 | Identical |
| IEC 60909-3:2009 | Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth |
| IEC 60909-0:2016 | Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents |
| IEC 61082-1:2014 RLV | Preparation of documents used in electrotechnology - Part 1: Rules |
| IEC 60027-1:1992 | Letters symbols to be used in electrical technology - Part 1: General |
| ISO 81714-1:2010 | Design of graphical symbols for use in the technical documentation of products Part 1: Basic rules |
| IEEE 315 : 1975 | GRAPHIC SYMBOLS FOR ELECTRICAL AND ELECTRONICS DIAGRAMS (INCLUDING REFERENCE DESIGNATION LETTERS) |
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