Commissioning and Maintenance
P12x/EN CM/A96
MiCOM P120/P121/P122/P123
Page 11/18
AUTOMAT. CTRL/Trip commands Menu
TRIP tI
e
> YES
TRIP tI
e
>> YES
4.3.2.1.1 MiCOM P121, P122 and P123 settings
Protection Menu
I> YES
I> 1
In
tI>
DMT or IDMT or RI
tI> (if DMT)
20 s
Type of curve (if IDMT)
IEC VI or IEEE VI
TMS value (if IDMT)
1
K value (if RI)
1
I>> YES
I>> 12
In
AUTOMAT. CTRL/Trip commands Menu
TRIP tI>
YES
TRIP tI>>
YES
4.3.2.2
I> threshold with DMT tI>
Values to be recorded:
I> threshold for each phase
Time delay tI> for each phase.
I> threshold check:
If the time delay tI> is short, gradually increase the injection current up to the value of the I>
threshold.
If the time delay tI> is long, inject 0.95 x I threshold and check that there is no tripping. Then
inject 1,1 x I threshold and check the trip.
Gradually decreases the injected current and record the value of the drop out I> threshold.
Checks:
Alarm message on the LCD display.
Alarm LED flashes.
Trip LED on
I> threshold LED on (if programmed).
Trip output closes.
I> threshold output closes (if programmed).
tI> time delay check:
Apply a current onto one of the phases and measure the time delay tI> by pre-setting the
current above the I> threshold (I injected > 2 x I threshold).
Apply a current onto one of the phases and measure the time delay tI> by pre-setting the
current above the I> threshold (I injected > 10 x I threshold).
Summary of Contents for MiCom P120
Page 1: ...MiCOM P120 P121 P122 P123 Overcurrent Relays Version 11 Technical Guide P12X EN T A96...
Page 2: ......
Page 4: ...P12x EN T A96 Technical Guide Contents Page 2 2 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 13: ...Introduction P12x EN IT A96 MiCOM P120 P121 P122 P123 INTRODUCTION...
Page 14: ......
Page 16: ...P12x EN IT A96 Introduction Page 2 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 22: ...P12x EN IT A96 Introduction Page 8 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 24: ......
Page 35: ...User Guide P12x EN FT A96 MiCOM P120 P121 P122 P123 USER GUIDE...
Page 36: ......
Page 40: ...P12x EN FT A96 User Guide Page 4 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 108: ...P12x EN FT A96 User Guide Page 72 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 109: ...Menu Content Tables P12x EN HI A96 MiCOM P120 P121 P122 P123 MENU CONTENT TABLES...
Page 110: ......
Page 112: ...P12x EN HI A96 Menu Content Tables Page 2 68 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 221: ...Application Guide P12x EN AP A96 MiCOM P120 P121 P122 P123 APPLICATION GUIDE...
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Page 226: ...P12x EN AP A96 Application Guide Page 4 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 302: ...P12x EN AP A96 Application Guide Page 80 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 370: ...P12x EN CT A96 Communications COURIER DATABASE Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 514: ...P12x EN CT A96 Communications COURIER DATABASE Page 146 248 MiCOM P120 P121 P122 P123...
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Page 518: ...P12x EN CT A96 Communications IIEC 60870 5 103 Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 536: ...P12x EN CT A96 Communications IEC 60870 5 103 Page 20 248 MiCOM P120 P121 P122 P123...
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Page 540: ...P12x EN CT A96 Communications DNP 3 0 Database Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 573: ...Connection Diagrams P12x EN CO A96 MiCOM P120 P121 P122 P123 CONNECTION DIAGRAMS...
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Page 582: ...P12x EN RS A96 Commissioning Test Record Sheets Page 2 60 MiCOM P120 P121 P122 P123 BLANK PAGE...
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