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1MRS756475 D
1MRS756475 D
Engineering Guide
Engineering Guide
The international IEC 61850 standard defines a
The international IEC 61850 standard defines a
communications networks and systems. The standard consists of several parts
communications networks and systems. The standard consists of several parts
ranging from the requirements on substation automation systems to
ranging from the requirements on substation automation systems to
communication protocol.
communication protocol.
One major difference between the other communication protocols applied in
One major difference between the other communication protocols applied in
substation automation and IEC 61850 is that the latter is not only a communication
substation automation and IEC 61850 is that the latter is not only a communication
 protocol, but a whole framework for
 protocol, but a whole framework for s
substation automation systems. The communication part covers the
substation automation systems. The communication part covers the
 between the IEDs and the substation level, fas
 between the IEDs and the substation level,
 between the IEDs and communication to sens
 between the IEDs and communication to
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communication in electrical substations related to
communication in electrical substations related to
IEDs
IEDs
7-1...
7-1...
Basic communication structure for substation and
Basic communication structure for substation and
7-4
7-4
feeder equipment (data model and services)
feeder equipment (data model and services)
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The IEC 61850 standard specifies an expandable data
The IEC 61850 standard specifies an expandable data
substation automation (standard parts 7-x). The standard does not
substation automation (standard parts 7-x). The standard does not
 protection or control functions, but s
 protection or control functions, but
information to a communication network.
information to a communication network.
The standard supports free allocation of functions t
The standard supports free allocation of functions t
communication facilities, the functions can be located anywhere in the system, that
communication facilities, the functions can be located anywhere in the system, that
is, an interlocking function can reside in the IED or on the station level.
is, an interlocking function can reside in the IED or on the station level.
Additionally, the standard is open
Additionally, the standard is open
different integration levels and allocation of functions to different devices is
different integration levels and allocation of functions to different devices is
supported.
supported.
specifying, engineering and operating
pecifying, engineering and operating
fast peer-to-peer communication
t peer-to-peer communication
sensors and actuators
ors and actuators
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specifies how the functions expose
pecifies how the functions expose
for different system philosophies, that is,
for different system philosophies, that is,
Section 2
Section 2
IEC 61850 overview
IEC 61850 overview
framework for substation
framework for substation
the details of a
the details of a
connection
connection
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management
management
Requirements
Requirements
Impact on engineering
Impact on engineering
Modelling and services
Modelling and services
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model and services for 
model and services for 
specify any
specify any
their 
their 
o devices. With efficient
o devices. With efficient
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