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Connection Diagrams
P225/EN CO/B11
MiCOM P225
Page 9/12
2.10 RTDs
The P225 relay can, as an option, be connected to 10 RTD's, which enables it to monitor
temperature (PROTECTION G1 or PROTECTION G2 menu). The choice of these types of
RTD sensors is effected in the CONFIG. SELECT submenu.
It is recommended that connections between the relay and the RTD's are made using a 3-
core screened cable with a total resistance less than 25
Ω
in case of PT100, Ni100 or Ni120
RTD. For Cu10 RTD, the cable total resistance shall be less than 2.5
Ω
. The wire also
should have a minimum voltage rating of 300 Vrms. Impedance of cores connected to both
terminals 2d and 2b (see figure 5) shall be of identical value. The cable shielding shall be
bonded to the MiCOM relay case earth connector.
Typical specification:
•
Each core:
7/0.2 mm copper conductors heat
resistant
PVC
•
Nominal conductor area:
0.22 mm
2
per core
•
Screen:
Nickel-plated copper wire braid heat
resistant
PVC
sheathed.
•
Conductor impedance:
Strictly identical for 2 of the 3 cores.
Accuracy difference less than 1%
2z
Earthing
Shielding
Screened cable
RTD1
2b
2d
MiCOM P225
green connector
P0429ENa
Case earth
connector
FIGURE 5 - RTD CONNECTION
Содержание MiCOM P225
Страница 1: ...MiCOM P225 Motor Protection Relay Technical Guide P225 EN T B11...
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Страница 4: ...P225 EN T B11 Technical Guide Page 2 2 MiCOM P225 BLANK PAGE...
Страница 5: ...Connection Diagrams P225 EN CO B11 MiCOM P225 CONNECTION DIAGRAMS...
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Страница 8: ...P225 EN CO B11 Connection Diagrams Page 2 12 MiCOM P225 BLANK PAGE...
Страница 18: ...P225 EN CO B11 Connection Diagrams Page 12 12 MiCOM P225 BLANK PAGE...
Страница 19: ...Technical Specifications P225 EN TD B11 MiCOM P225 TECHNICAL SPECIFICATIONS...
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Страница 55: ...User Guide P225 EN FT B11 MiCOM P225 USER GUIDE...
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Страница 109: ...Menu of the HMI P225 EN HI B11 MiCOM P225 MENU OF THE HMI...
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Страница 158: ...P225 EN HI B11 Menu of the HMI Page 48 48 MiCOM P225 BLANK PAGE...
Страница 159: ...Maintenance P225 EN CM B11 MiCOM P225 MAINTENANCE...
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Страница 162: ...P225 EN CM B11 Maintenance Page 2 18 MiCOM P225 BLANK PAGE...
Страница 178: ...P225 EN CM B11 Maintenance Page 18 18 MiCOM P225 PAGE BLANCHE...
Страница 179: ...Communication P225 EN CT B11 MiCOM P225 COMMUNICATION...
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Страница 232: ...P225 EN CT B11 Communication Page 52 52 MiCOM P225 BLANK PAGE...
Страница 233: ...Setting P225 EN SV B11 MiCOM P225 SETTING...
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Страница 250: ...P225 EN SV B11 Setting Page 16 16 MiCOM P225 BLANK PAGE...
Страница 251: ...Installation Guide P225 EN IN B11 MiCOM P225 INSTALLATION GUIDE...
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Страница 254: ...P225 EN IN B11 Installation Guide Page 2 12 MiCOM P225 BLANK PAGE...
Страница 265: ...Test Report P225 EN RS B11 MiCOM P225 TEST REPORT...
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Страница 268: ...P225 EN RS B11 Test Report Page 2 20 MiCOM P225 BLANK PAGE...
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