IS 18488 : 2024 Substation Automation System Based on IS/IEC 61850 - Guidelines
1 SCOPE
1.1 The substation automation system (SAS) shall be installed to control and monitor all the substation equipment from remote control centres (RCC) and remote control and supervision centre (RSCC), as well as from local control centre.
1.2 The SAS shall contain the following main functional parts:
a) Bay control unit (BCU) Intelligence electronic devices (IEDs) for control, interlocking, measurement and monitoring;
b) Merging units and switchgear controller IEDs (as applicable for process bus-based SAS only);
c) Redundant station human-machine interface (HMI) with industrial grade servers;
d) Redundant managed switched Ethernet local area network communication infrastructure with hot standby;
e) Redundant gateway for remote monitoring and control via industrial grade hardware (to RCC) through secured IEC 60870-5- 104 protocol. Number of ports shall be as per requirement of RCC;
f) Redundant gateway for remote monitoring and control via industrial grade hardware (to RSCC), the gateway should be able to communicate with RSCC on IEC 60870-5- 104 protocol;
g) DR/Engineering PCs, as specified;
h) Remote HMI and work station along with necessary printers, only if specified as requirement by the owner; and
j) Peripheral equipment like printers, display units, key boards, etc.
1.3 It shall enable local station control via a PC by means of human-machine interface (HMI) and control software package, which shall contain an extensive range of supervisory control and data acquisition (SCADA) functions.
1.4 It shall include communication gateway, intelligent electronic devices (IED) for bay control, protection and monitoring and inter IED communication infrastructure. An architecture drawing for SAS is enclosed at Annex B.
1.5 The communication gateway shall facilitate the information flow with remote control centres. The bay level intelligent electronic devices (IED) for protection and control shall provide the direct connection to the switchgear without the need of interposing components and perform control, protection, and monitoring functions. However, in case of process bus-based SAS, switchgear controllers (SGCs) shall be used as digital interfaces between switchgear and bay level IEDs. Suitable digital interface to be provided for other main equipment like transformers/reactors etc.
1.6 The substation automation system being offered shall generally conform to provisions of IEC 62351, IEEE 1686, IEC 62443 and/or other guidelines/ requirements as specified by the Government of India for cyber security.
1.7 Process bus-based SAS shall be applicable only if specifically required by the owner/purchaser.
2 REFERENCES
The standards listed below contain provisions, which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards.
| IS No./Other Publication | Title |
| IS 14176 : 1994/ISO 9660 : 1988 | Information processing - Volume and file structure of CD-ROM for information interchange |
| IS 16335 : 2015 | Power control systems - Security requirements |
| IEC 60870-5-101 | Telecontrol equipment and systems - Part 5-101: Transmission protocols - Companion standard for basic telecontrol tasks |
| IEC 60870-5-104 | Telecontrol equipment and systems - Part 5-104: Transmission protocols - Network access for IEC 60870-5-101 using standard transport profiles |
| IS/IEC/TR 61850-1 : 2013 | Communication networks and systems for power utility automation: Part 1 Introduction and overview |
| IS/IEC/TS 61850-2 : 2019 | Communication networks and systems for power utility automation: Part 2 Glossary |
| IS/IEC 61850-3 : 2013 | Communication networks and systems for power utility automation: Part 3 General requirements |
| IS/IEC 61850-4 : 2020 | Communication networks and systems for power utility automation: Part 4 System and project management |
| IS/IEC 61850-5 : 2013 | Communication networks and systems for power utility automation: Part 5 Communication requirements for functions and device models |
| IEC 61850-6 : 2009 +AMD 1 : 2018 CSV | Configuration Communication networks and systems for power utility automation - Part 6: description language for communication in power utility automation systems related to IEDs |
| IEC 61850-9-2 : 2011 | Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3 |
| IEC 61850-10 : 2012 | Communication networks and systems for power utility automation - Part 10: Conformance testing |
| IS/IEC 62351 (all parts) | Power systems management and associated information exchange - Data and communications security |
| IS/IEC 62443 (all parts) | Security for industrial automation and control system |
| IEC 62439-3 : 2021 | Industrial communication networks - High availability automation networks - Part 3: Parallel redundancy protocol (PRP) and highavailability seamless redundancy (HSR) |
| IEEE 1588 Version 2 | Precision clock synchronization protocol for networked measurement and control systems |