Technical Data
P12x/EN TD/A96
MiCOM P120/P121/P122/P123
Page 7/40
5.
DEVIATION OF PROTECTION ELEMENTS
Glossary
I :
Phase
current
Is
:
I>, I>>, I>>> & I<
I2s
:
I2>, I2>> & I2>>>
Ies
:
Ie>, Ie>> & Ie>>>
DT : Definite
time
IDMT :
Inverse definite minimum time
Element
Range
Deviation
Trigger
Reset
Time deviation
Phase overcurrent
elements
I> & I>> & I>>>
0.1 to 40 In
±
2%
DT: Is
±
2%
IDMT: 1.1Is
±
2%
0.95 Is
±
2%
1.05 Is
±
2%
±
2% +30…50ms
±
5% +30…50ms
Earth fault overcurrent
elements
Ie> & Ie>> & Ie>>>
0.002 to 1Ien
0.01 to 8 Ien
0.1 to 40 Ien
±
2%
DT: Ies
±
2%
IDMT: 1.1Ies
±
2%
0.95 Ies
±
2%
1.05 Ies
±
2%
±
2% +30…50ms
±
5% +30…50ms
Negative sequence
phase overcurrent
elements
I2>, I2>> & I2>>>
0.1 to 40 In
±
2%
DT: I2s
±
2%
IDMT: 1.1I2s
±
2%
0.95 I2s
±
2%
1.05 I2s
±
2%
±
2% +30…50ms
±
5% +30…50ms
Phase undercurrent
element I<
0.02 to 1 In
±
2%
DT: I<
±
2%
0.95 I<
±
2%
±
2% +30…50ms
Broken conductor [I2/I1]. 20 to 100%
±
3%
DT: I2/I1
±
3%
0.95 I2/I1
±
3%
±
2% +30…50ms
Thermal overload
I
θ
>,
θ
Alarm,
θ
Trip
0.10 to 3.2 In
±
3%
IDMT: I
θ
>
±
3%
0.97 I
θ
>
±
3%
–5% +30…50ms
(ref. IEC 60255-8)
6.
DEVIATION OF AUTOMATION FUNCTIONS TIMERS
Autoreclose timers tDs, tR, tI
±
2% +10…30ms
CB fail & CB monitoring timers
±
2% +10…30ms
Auxiliary timers tAUX1, tAUX2, tAUX3, tAUX4
±
2% +10…30ms
Cold load pickup
±
2% +20…40ms
SOTF/TOR
±
2% +20…40ms
7.
DEVIATION OF MEASUREMENTS
Measurement Range
Deviation
Phase current
0.1 to 40 In
Typical
±
0.5% at In
0.002 to 1Ien
Typical
±
0.5% at Ien
0.01 to 8 Ien
Typical
±
0.5% at Ien
Earth current
0.1 to 40 Ien
Typical
±
0.5% at Ien
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...
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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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