EDS SCADA NUMBERING SYSTEM

Transcription

1 Document Number: EDS Network(s): Summary: EPN, LPN, SPN ENGINEERING DESIGN STANDARD EDS SCADA NUMBERING SYSTEM This standard describes the system for numbering SCADA wiring within switchgear and protection panels to uniquely identify controls, indications, alarms and analogues. Author: James Ford Approver: Paul Williams Date: 01/12/2016 This document forms part of the Company s Integrated Business System and its requirements are mandatory throughout UK Power Networks. Departure from these requirements may only be taken with the written approval of the Director of Asset Management. If you have any queries about this document please contact the author or owner of the current issue. Applicable To UK Power Networks External Asset Management G81 Website Capital Programme UK Power Networks Services Connections Contractors Health & Safety ICPs/IDNOs Legal Meter Operators Network Operations Procurement Strategy & Regulation Technical Training THIS IS AN UNCONTROLLED DOCUMENT, THE READER MUST CONFIRM ITS VALIDITY BEFORE USE

2 Revision Record Version 3.2 Review Date 01/12/2021 Date 31/08/2018 Author Brian Rodgers Reason for Update: Minor version update What has changed: EDS A updated to Issue 23 Version 3.1 Review Date 01/12/2021 Date 17/10/2017 Author Brian Rodgers Reason for Update: Minor version update What has changed: EDS A updated to Issue 21 Version 3.0 Review Date 01/12/2021 Date 28/11/2016 Author James Ford Reason for Update: Periodic review What has changed: No content changes, document transferred onto a new template and rules applied EDS A reviewed with no changes Version 2.1 Review Date 07/09/2016 Date 24/07/2012 Author Lee Strachan Document reviewed for publishing on G81 website Version 2.0 Review Date 07/09/2016 Date 07/09/2011 Author Don Fossett Reclassification of document from EI Document reviewed no major changes Version 1.0 Review Date Date 17/11/2006 Author Stephen Tucker Original UK Power Networks 2016 All rights reserved 2 of 7

3 Contents 1 Introduction Scope Development of a New Numbering System System Maintenance Future Development References Dependent Documents... 6 Appendix A SCADA Numbering System... 7 Tables Table 1 Example References... 5 UK Power Networks 2016 All rights reserved 3 of 7

4 1 Introduction This standard describes the system for numbering SCADA (Supervisory Control and Data Acquisition) wiring within switchgear and protection panels to uniquely identify controls, indications, alarms and analogues. The SCADA numbering has been developed alongside the harmonised protection and control schemes (refer to EDS ). 2 Scope This SCADA numbering system detailed in this standard applies to all new plant and equipment installed at grid and primary substations in EPN, LPN and SPN. The one exception is modifications and extensions to existing plant and equipment which shall use an extension of the numbering scheme already in use. 3 Development of a New Numbering System The three existing numbering systems were all different in presentation and included references to identify the following: Switchgear/relay panel; Voltage of the associated circuit; Type of reference (control, alarm etc). However, this presented a number of problems, e.g. poor maintenance and ever increasing length of the references and numbers leading to difficulty in reading the numbers when applied to the wiring. A new numbering system was developed utilising the best parts of the existing numbering systems and is based on the following: There is no need to identify the panel as the wiring only exists within that panel; There is no need to identify the voltage of the circuit; There is no need to differentiate between alarm and indications; Analogues are the only continuously variable indications; Wiring will only be ferruled on the plant side (all other wiring is colour coded). This enables a simple short numbering system to be designed using a limited number of characters and range of numerals. The new SCADA numbering system consists of the following: A new range of references that are the same for all voltages and similar functions; Alarms and indications that are a single character followed by up to three digits; Controls that are a single character followed by up to three digits; Analogues that are two characters followed by up to two digits. Two characters are required in this instance to differentiate from normal protection wiring. An example set of references is outlined in Table 1. A full list of references is given in Appendix A. UK Power Networks 2016 All rights reserved 4 of 7

5 Table 1 Example References Type Reference Description Alarms and indications X123 Alarms and indications (various) Controls W123 Controls (various) Measurements XC12 Current analogue XV12 Voltage analogue (circuit) XE12 Voltage analogue (busbar) XP12 Mega Watt analogue (import/export) XQ12 MVAR analogue (import/export) XT12 Transformer analogues Tap position HV winding temperature LV winding temperature Oil temperature Hydran gas level Hydran water content XG12 Synchronising analogue Running voltage Incoming voltage Phase angle XF12 Frequency analogue XM12 Miscellaneous Cable pressure Switch-room temperature Switch-room humidity External temperature Wind speed UK Power Networks 2016 All rights reserved 5 of 7

6 4 System Maintenance The full list of references given in Appendix A will be maintained by UK Power Networks Operational Telecoms using the following guidelines: This UK Power Networks standard is the only source of references for SCADA numbering purposes; This UK Power Networks standard acts as the reference point and that all newly allocated numbers are recorded promptly to avoid duplication; Generally it should be unnecessary to add to this list other than for additional standard protection and control schemes. Every effort should be made, when the need arises for an additional reference, to check whether an existing one would be adequate for the purpose, in which case a note to this effect will be added to the reference selected, instead of a new reference being created. 5 Future Development The numbering schemes will be developed to provide a full schedule of connections for each of the UK Power Networks standard protection and control schemes. This will show the order of termination and size of each interconnecting cable which will be terminated in colour order without ferruling on the Remote Terminal Unit (RTU) side of the plant connections. 6 References EDS kV Grid and Primary System Protection and Control Schemes 7 Dependent Documents This document is referenced in the following documents, any of which may be affected by updates. EDS EDS EDS kV Grid and Primary Systems Protection and Control Schemes Protection and Control Cubicles Customer Supplies at 132kV and 66kV Notes of Guidance for New Demand and Generation Connections UK Power Networks 2016 All rights reserved 6 of 7

7 Appendix A SCADA Numbering System Appendix A is a spreadsheet attachment to this document. Note: The issue number and date will be included in the title, to allow easy identification of the latest version. UK Power Networks 2016 All rights reserved 7 of 7