13. Merging unit case and plug-in unit
The merging unit cases are assigned to a certain type of plug-in
unit. For safety reasons, the merging unit cases for current
measuring units are provided with automatically operating
contacts for short circuiting the CT secondary circuits when a
merging unit is withdrawn from its case. The merging unit case
is further provided with a mechanical coding system preventing
the current measuring units from being inserted into the
merging unit cases intended for the voltage measuring units.
14. Selection and ordering data
Contact ABB for ordering information.
15. Accessories and ordering data
Table 41. Cables
Item
Order number
Optical sensor for arc protection, cable length 1.5 m
1MRS120534-1.5
Optical sensor for arc protection, cable length 3.0 m
1MRS120534-3
Optical sensor for arc protection, cable length 5.0 m
1MRS120534-5
Optical sensor for arc protection, cable length 7.0 m
1MRS120534-7
Optical sensor for arc protection, cable length 10.0 m
1MRS120534-10
Optical sensor for arc protection, cable length 15.0 m
1MRS120534-15
Optical sensor for arc protection, cable length 20.0 m
1MRS120534-20
Optical sensor for arc protection, cable length 25.0 m
1MRS120534-25
Optical sensor for arc protection, cable length 30.0 m
1MRS120534-30
Table 42. Mounting accessories
Item
Order number
Semi-flush mounting kit
1MRS050696
Wall mounting kit
1MRS050697
Inclined semi-flush mounting kit
1MRS050831
19” rack mounting kit with cut-out for one merging unit
1MRS050694
19” rack mounting kit with cut-out for two merging units
1MRS050695
Mounting bracket for one merging unit with test switch RTXP in 4U Combiflex (RHGT 19” variant C)
2RCA022642P0001
Mounting bracket for one merging unit in 4U Combiflex (RHGT 19” variant C)
2RCA022643P0001
19” rack mounting kit for one merging unit and one RTXP18 test switch (the test switch is not included in the
delivery)
2RCA021952A0003
19” rack mounting kit for one merging unit and one RTXP24 test switch (the test switch is not included in the
delivery)
2RCA022561A0003
16. Tools
The default parameter setting values can be changed from the
Web browser-based user interface (Web HMI) or Protection and
Control IED Manager PCM600 in combination with the merging
unit specific connectivity package.
PCM600 offers extensive merging unit configuration functions.
For example, signals, application and IEC 61850
communication, including horizontal GOOSE communication,
can be modified with PCM600.
When the Web HMI is used, the merging unit can be accessed
either locally or remotely using a Web browser (Internet
Explorer). The Web HMI functionality can be limited to read-only
access.
The merging unit's connectivity package is a collection of
software and specific merging unit information, which enables
system products and tools to connect and interact with the
merging unit. The connectivity packages reduce the risk of
Substation Merging Unit
1MRS758420 B
SMU615
Product version: 1.0
22
ABB