P74x/EN SC/Na7
SCADA Communications
(SC) 13-18
MiCOM P741, P742, P743
SC
3.
IEC 61850 ETHERNET INTERFACE
3.1
Introduction
IEC 61850 is the international standard for Ethernet-based communication in substations. It
enables integration of all protection, control, measurement and monitoring functions within a
substation, and additionally provides the means for interlocking and inter-tripping. It
combines the convenience of Ethernet with the security which is essential in substations
today.
The protection relays can integrate with the PACiS substation control systems, to complete
GE's offer of a full IEC 61850 solution for the substation. The majority of Px3x and Px4x
relay types can be supplied with Ethernet, in addition to traditional serial protocols. Relays
which have already been delivered with UCA2.0 on Ethernet can be easily upgraded to IEC
61850.
3.2
What is IEC 61850?
IEC 61850 is an international standard, comprising 14 parts, which defines a communication
architecture for substations.
The standard defines and offers much more than just a protocol. It provides:
•
Standardized models for IEDs and other equipment within the substation
•
Standardized communication services (the methods used to access and exchange data)
•
Standardized formats for configuration files
•
Peer-to-peer (e.g. relay to relay) communication
The standard includes mapping of data onto Ethernet. Using Ethernet in the substation
offers many advantages, most significantly including:
•
High-speed data rates (currently 100 Mbits/s, rather than 10’s of kbits/s or less used by
most serial protocols)
•
Multiple masters (called “clients”)
•
Ethernet is an open standard in every-day use
GE has been involved in the Working Groups which formed the standard, building on
experience gained with UCA2.0, the predecessor of IEC 61850.
3.2.1
Interoperability
A major benefit of IEC 61850 is interoperability. IEC 61850 standardizes the data model of
substation IEDs. This responds to the utilities’ desire of having easier integration for different
vendors’ products, i.e. interoperability. It means that data is accessed in the same manner in
different IEDs from either the same or different IED vendors, even though, for example, the
protection algorithms of different vendors’ relay types remain different.
When a device is described as IEC 61850-compliant, this does not mean that it is
interchangeable, but does mean that it is interoperable. You cannot simply replace one
product with another, however the terminology is pre-defined and anyone with prior
knowledge of IEC 61850 should be able very quickly integrate a new device without the need
for mapping of all of the new data. IEC 61850 will inevitably bring improved substation
communications and interoperability, at a lower cost to the end user.
3.2.2
The data model
To ease understanding, the data model of any IEC 61850 IED can be viewed as a hierarchy
of information. The categories and naming of this information is standardized in the IEC
61850 specification.
Summary of Contents for P741
Page 2: ......
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Page 6: ...P74x EN IT Na7 Introduction MiCOM P741 P742 P743 ...
Page 8: ...P74x EN IT Na7 Introduction IT 1 2 MiCOM P741 P742 P743 IT ...
Page 18: ...P74x EN TD Na7 Technical Data MiCOM P741 P742 P743 ...
Page 30: ...P74x EN TD Na7 Technical Data TD 2 14 MiCOM P741 P742 P743 TD ...
Page 32: ...P74x EN GS Na7 Getting Started MiCOM P741 P742 P743 ...
Page 70: ...P74x EN ST Na7 Getting Started MiCOM P741 P742 P743 ...
Page 72: ...P74x EN ST Na7 Settings ST 4 2 MiCOM P741 P742 P743 ST ...
Page 116: ...P74x EN OP Na7 Operation MiCOM P741 P742 P743 ...
Page 120: ...P74x EN OP Na7 Operation OP 5 4 MiCOM P741 P742 P743 OP ...
Page 136: ...P74x EN OP Na7 Operation OP 5 20 MiCOM P741 P742 P743 OP FIGURE 8 CB FAIL LOGIC ...
Page 166: ...P74x EN AP Na7 Application Notes MiCOM P741 P742 P743 ...
Page 234: ...P74x EN PL Na7 Programmable Logic MiCOM P741 P742 P743 ...
Page 290: ...P74x EN PL Na7 Programmable Logic PL 7 56 MiCOM P741 P742 P743 PL ...
Page 291: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 57 PL ...
Page 292: ...P74x EN PL Na7 Programmable Logic PL 7 58 MiCOM P741 P742 P743 PL ...
Page 294: ...P74x EN PL Na7 Programmable Logic PL 7 60 MiCOM P741 P742 P743 PL ...
Page 295: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 61 PL ...
Page 296: ...P74x EN PL Na7 Programmable Logic PL 7 62 MiCOM P741 P742 P743 PL ...
Page 298: ...P74x EN PL Na7 Programmable Logic PL 7 64 MiCOM P741 P742 P743 PL ...
Page 299: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 65 PL ...
Page 300: ...P74x EN PL Na7 Programmable Logic PL 7 66 MiCOM P741 P742 P743 PL ...
Page 302: ...P74x EN MR Na7 Measurements and Recording MiCOM P741 P742 P743 ...
Page 324: ...P74x EN FD Na7 Firmware Design MiCOM P741 P742 P743 ...
Page 344: ...P74x EN FD Na7 Firmware Design FD 9 20 MiCOM P741 P742 P743 FD FIGURE 10 P74x SYSTEM OVERVIEW ...
Page 351: ...Firmware Design P74x EN FD Na7 MiCOM P741 P742 P743 FD 9 27 FD ...
Page 353: ...P74x EN CM Na7 Commissioning MiCOM P741 P742 P743 ...
Page 429: ...P74x EN MT Na7 Maintenance MiCOM P741 P742 P743 ...
Page 431: ...P74x EN MT Ma7 Maintenance MT 11 2 MiCOM P741 P742 P743 MT ...
Page 451: ...P74x EN TS Na7 Troubleshooting MiCOM P741 P742 P743 ...
Page 453: ...P74x EN TS Na7 Troubleshooting TS 12 2 MiCOM P741 P742 P743 TS ...
Page 475: ...P74x EN SC Na7 SCADA Communications MiCOM P741 P742 P743 ...
Page 499: ...P74x EN SC Na7 SCADA Communications SC 13 24 MiCOM P741 P742 P743 SC ...
Page 501: ...P74x EN SG Na7 Symbols and Glossary MiCOM P741 P742 P743 ...
Page 511: ...P74x EN SG Na7 Symbols and Glossary SG 14 10 MiCOM P741 P742 P743 SG Logic Gates ...
Page 513: ...P74x EN IN Na7 Installation MiCOM P741 P742 P743 ...
Page 515: ...P74x EN IN Na7 Installation IN 15 2 MiCOM P741 P742 P743 IN ...
Page 528: ...Installation P74x EN IN Na7 MiCOM P741 P742 P743 IN 15 15 IN FIGURE 6 P742 40TE REAR VIEW ...
Page 533: ...P74x EN VH Na7 Firmware and Service Manual Version History MiCOM P741 P742 P743 ...
Page 542: ...APPENDIX A WIRING DIAGRAMS ...
Page 543: ...Appendix A Wiring Diagrams P74x P74x EN M Na7 ...
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