MiCOM P125 P126 & P127
Lakshmikanthan Balaji
Application Engineer
27th, Aug 2007
MiCOM P125 P126 & P127
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> MiCOM P125 P126 & P127 – May,2005
3
MiCOM P125 P126 & P127
The Range
P125: Directional / Non Directional Single Phase
And Earth Fault Protection
4
> MiCOM P125 P126 & P127 – May,2005
4
MiCOM P125 P126 & P127
The Range
 P126: Three phase Overcurrent &
directional/non directional earth fault
protection
 P127: Directional / non directional threephase Overcurrent & directional /non
directional earth fault protection
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Applicability
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Applications
 Transmission/sub-transmission
 Distribution
 Generation and co-generation
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Applications
 Industry
 Transport
underground and railway
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> MiCOM P125 P126 & P127 – May,2005
8
MiCOM P125
LEDs
Configurable
Inputs and Outputs
Configurable
Nominal Values
of CT and VT Inputs
Settable
All Main Functions
Configurable
9
> MiCOM P125 P126 & P127 – May,2005
Local and remote
setting change
Wide Range
Power Supply
2 Independent
Setting Groups
9
MiCOM P126 & P127
LEDs
Configurable
Local and remote
setting change
Inputs and Outputs
Configurable
Nominal Values
of CT and VT Inputs
Settable
Wide Range
Power Supply
All Main Functions
Configurable
Programmable
AND Logic
2 Independent
Setting Groups
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection & Control Features
11
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protections
FUNCTIONS
Three phase Overcurrent
67/50/51
Directional/non Directional Earth
Fault Overcurrent
67N/50N/
51N
Earth Wattmetric / IeCos
32N
Under current
37
> MiCOM P125 P126 & P127 – May,2005
MiCOM
P125
MiCOM
P126
MiCOM
P127
50/51
Directional/non Directional three
Phase Overcurrent
Broken Conductor Detector
12
ANSI
codes
46 BC
12
MiCOM P125 P126 & P127
Protections
FUNCTIONS
13
ANSI
codes
Negative Sequence
Overcurrent
46
Thermal Overload
49
Under Voltage
27
Over Voltage
59
Residual Over Voltage
59N
Circuit Breaker Failure
50BF
> MiCOM P125 P126 & P127 – May,2005
MiCOM
P125
MiCOM
P126
MiCOM
P127
13
MiCOM P125 P126 & P127
Automation Functions
FUNCTIONS
Autoreclose (4 shots)
Setting groups
ANSI
codes
MiCOM
P125
MiCOM
P126
MiCOM
P127
79
2
2
2
Start contacts
Blocking Logic
Selective scheme Logic
Cold load Pick Up
Circuit Breaker Control
Circuit Breaker Mainten.
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Ancillary Functions
FUNCTIONS
MiCOM
P125
MiCOM
P126
MiCOM
P127
Measurements
Fault Records
Events Records
Disturbance Records
Switch on to fault (SOTF)
51V and VTS Supervision
Local/Remote functionality and CB control
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Ancillary Functions
FUNCTIONS / PROTOCOLS
MiCOM
P125
MiCOM
P126
MiCOM
P127
N.A.
N.A.
N.A.
Relays Maintenance mode
4 AND Logic Function
Diagnostic/self monitoring
Rear Communication RS485
Front Communication RS232
ModBus RTU
IEC 60870 – 5 – 103(VDEW)
Courier and DNP3
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Line Diagrams
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125
Busbar
Residual
VT
Trip
52
P125
59N
Earth CT
67N
32N
86
Uaux
18
> MiCOM P125 P126 & P127 – May,2005
L1
L2
L3
L4
Watch Dog
RL 1
RL 2
RL 3
RL 4
RL 5
RL 6
RS 485
RS 232
Logic inputs
Logic outputs
Supervision
System
Setting/Con
trol
Software
18
MiCOM P126
Busbar
Residual
VT
Trip
52
Phase
CTs
Earth
CT
P126
59N
46
49
37
50
51
50N
51N
TCS
67N
50
BF
46
BC
32N
Uaux
19
> MiCOM P125 P126 & P127 – May,2005
SOTF
86
79
L1
L2
L3
L4
L5
L6
L7
Watch Dog
RL 1
RL 2
RL 3
RL 4
RL 5
RL 6
RL 7
RL 8
RS 485
RS 232
Logic inputs
Logic outputs
Supervision
System
Setting/
Control
Software
19
MiCOM P127
Busbar
3 Phase to neutral VTs
52
P127
Trip
49
37
59N
67
50N
51N
46
67N
50
BF
SOTF
32N
86
TCS
Phase
CTs
Earth
CT
L1
L2
L3
L4
L5
L6
L7
Watch Dog
RL 1
RL 2
RL 3
RL 4
RL 5
RL 6
RL 7
RL 8
RS 485
Uaux
20
> MiCOM P125 P126 & P127 – May,2005
50
51
79
46
BC
RS 232
Logic inputs
Logic outputs
Supervision
System
Setting/
Control
Software
20
MiCOM P127
Busbar
Residual
VT
52
2 Phase to neutral VTs
P127
Trip
Phase
CTs
Earth
CT
49
37
59N
67
50N
51N
46
67N
50
BF
SOTF
32N
86
TCS
L1
L2
L3
L4
L5
L6
L7
Watch Dog
RL 1
RL 2
RL 3
RL 4
RL 5
RL 6
RL 7
RL 8
RS 485
Uaux
21
> MiCOM P125 P126 & P127 – May,2005
50
51
79
46
BC
RS 232
Logic inputs
Logic outputs
Supervision
System
Setting/
Control
Software
21
MiCOM P127
Busbar
Residual
VT
2 Phase to Phase VTs
P127
52
Trip
Phase CTs
49
37
59N
67
50N
51N
46
67N
50
BF
SOTF
32N
86
TCS
Earth CT
L1
L2
L3
L4
L5
L6
L7
Watch Dog
RL 1
RL 2
RL 3
RL 4
RL 5
RL 6
RL 7
RL 8
RS 485
Uaux
22
50
51
> MiCOM P125 P126 & P127 – May,2005
79
46
BC
RS 232
Logic inputs
Logic outputs
Supervision
System
Setting/
Control
Software
22
MiCOM P125 P126 & P127
Physical Features
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Current and Voltage Inputs
 P125: two analogue inputs
 One current input (phase/earth fault current)
 One voltage input (residual/phase voltage)
 P126: five analogue inputs
 Three phase current inputs
 Earth fault current input
 Residual voltage input
 P127: seven analogue inputs
 Three phase current inputs
 Earth fault current input
 Three voltage inputs
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Current and Voltage Inputs
 Current - separate terminals for the 1A and 5A windings
 One phase current range from 0.1 in to 40 in
 Three earth fault current inputs range defined by
ordering code

0.002 to
1 Ien

0.01 to
8 Ien

0.1
to 40 Ien
 Voltage
 Two voltages input range defined by ordering code
25

57V to 130V

220V to 480V
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P127
Current and Voltage Inputs
 The P127 relay voltage inputs can be configured by SW for
connection to:
 3 Phase-to-Neutral external VTs
 2 Phase-to-Neutral + Residual external VTs
 2 Phase-to-Phase + Residual external VTs
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Communication
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Communication
 RS232 front communication port
 PC Setting Software: MiCOM S1
 Software Upgrade by downloading on flash memory
using the front port
 RS485 rear communication port
 Protocols available by ordering code
28

Modbus RTU standard

IEC 60870-5-103
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Communication
RS 232
communication port
RS232 terminal pin connection
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Communication
RS 485 rear communication port
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Communication
 RS232 front communication port
 To download the firmware
 For Setting and parameters using S1
 Measurements (voltage, frequency, Power, Metering, peak and
rolling demand) using S1
 Extracting of Records (event, fault, disturbance) by S1 and
analisys by Wave Win Software
 Remote interface by SCADA system or also using S1 soft.:
 RS485 rear communication port
 Protocols available by ordering code
31

Modbus RTU standard

IEC 60870-5-103
> MiCOM P125 P126 & P127 – May,2005
31
MiCOM P125 P126 & P127
Protection and Control Functions
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P127 - Directional / non
directional 3 Phase Overcurrent
Protection (67/50/51)
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P127
Protection and Control Functions
Directional / non directional three phase Overcurrent
34

Three directional / non directional
three phase overcurrent thresholds

Directional phase elements
internally polarised by quadrature
with the relevant phase to phase voltage

Synchronous polarisation
for the collapse of the
phase to phase
voltage
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P127
Protection and Control Functions
Directional / non directional three phase Overcurrent
 First and second threshold with:
 Definite trip delay time
 or Inverse trip delay time

IEC, ANSI/IEEE, RI and RECT curves available

Definite reset time available on IEC and RI curves

Definite or Inverse time on IEEE/ANSI curves
 2nd and 3rd threshold pickup can suspend 1st threshold
output control to save selectivity
 Definite trip delay time for third thresholds with the
possibility choosing the trip on peak detect to save the
functionality in case of saturation of the current
transformers.
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P126 P127
Protection and Control Functions
1st threshold suspended by 2nd and 3rd threshold pickup
t
t
t_I>
t_I>>
t_I>>>
I>
I>>
I
I> >> >>> Interlock NO
36
I>
I>>
I>>>
I> >> >>> Interlock YES
I>
t
I>
t
I>>
t
I>>
t
I>>>
t
I>>>
t
> MiCOM P125 P126 & P127 – May,2005
I
36
MiCOM P127
Protection and Control Functions
Directional three phase Overcurrent
 Each threshold independently settable as
directional / non directional.
 Each directional threshold with independent setting of
characteristic angle and trip zone.
 Reverse zone signal available for each directional
thresholds.
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P127
Protection and Control Functions
Directional three phase Overcurrent Forward and reverse zone
 Trip conditions:
 Iphase thresholds
exceeded in module
 Iphase current vector
in the tripping zone
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127 Directional / non directional Earth
Fault Protection (67N/50N/51N)
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection and Control Functions
Directional / non directional Earth Fault Overcurrent
 Three current threshold ranges selected by ordering code:

From 0.100 to 40 Ien [ A version]

From 0.010 to
8 Ien [ B version]

From 0.002 to
1 Ien [ C version]

Three thresholds
 Each threshold independently settable as directional / non
directional
 Each directional threshold with independent setting of
characteristic angle and trip zone.
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> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection and Control Functions
 Directional / non directional Earth Fault Overcurrent:
 Reverse zone signal available for each directional thresholds.
 Residual voltage setting in all directional thresholds.
 Ie + Ue threshold to prevent unwanted trips due to CT and VT
errors.
 Trip Conditions:
 Ie and Ue thresholds exceeded in module
 Ie current vector in the tripping zone
41
 Ien=1A:
Ie [mA] + Ue [V]
 Ien=5A:
Ie [mA] + 5 x Ue [V] > 90
> MiCOM P125 P126 & P127 – May,2005
> 18
41
MiCOM P127
Protection and Control Functions
Directional / non directional three phase Overcurrent
 First and second threshold with:
 Definite trip delay time
 or Inverse trip delay time

IEC, ANSI/IEEE, RI and RECT curves available

Definite reset time available on IEC and RI curves

Definite or Inverse time on IEEE/ANSI curves
 2nd and 3rd threshold pickup can suspend 1st threshold output
saving the selectivity
 Definite trip delay time for third thresholds with the
possibility choosing the trip on peak detect to save the
functionality against of the current transformers saturation.
42
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection and Control Functions
Directional Earth Fault Overcurrent Forward and reverse zone
 Trip conditions:
 Ie and Ue thresholds
exceeded in module
 Ie current vector in
the tripping area
 Ien=1A:
 Ie [mA] + Ue [V] > 18
 Ien=5A:
 Ie [mA] + 5 x Ue [V] > 90
43
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P 125 P126 & P127 Wattmetric & IeCos
Earth Fault Protection
(32N/IeCos)
44
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection and Control functions
Wattmetric & IeCos Earth Fault Protection
 Operation mode selectable:
 Pe: residual active power
 IeCosφ: active earth fault current component
 Two thresholds (Pe>; Pe>>) or (IeCos>; IeCos>>
 First threshold with:
 Definite trip delay time
 or Inverse trip delay time
45

IEC, ANSI/IEEE, RI and RECT curves available

Definite reset time available on IEC and RI curves

Definite or Inverse time on IEEE/ANSI curves
> MiCOM P125 P126 & P127 – May,2005
45
MiCOM P125 P126 & P127
Protection and Control Functions
Wattmetric & IeCos Earth Fault Protection
 Definite trip delay time for second and third thresholds
 Setting characteristic angle c for the thresholds
 Pe= Ue x Ie x Cos ( – c)
 Internal Automatic setting adaptation for 1/5A Ien
 IeCos( – c )
  = Ue^Ie
 Accuracy range of Pe and IeCos measurement: 85°<  <+ 85°
 IeSin available by adding 90° to the characteristic angle c
46
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P125 P126 & P127
Protection and Control Functions
Earth Wattmetric/IeCos Protection
Ue
Ue
Ue’
Trip zone
RCA
Ie
Iesin’
Ie
Iecos’
RCA
Ue’
E/F Icos
Ue = Residual voltage
Ue’ = Polarisation voltage after
RCA setting
Iecos’ = Active component
referred to Ue’
Iesin’ = Reactive component
referred to Ue’
47
> MiCOM P125 P126 & P127 – May,2005
Trip zone
47
MiCOM P125 P126 & P127
Protection and Control Functions
Wattmetric (32N) / IeCos Earth Fault Protection Tripping Zone (c=0°)
P/Iecos
Tripping Zone
5°
5°
Pe> Pe>>
Iecos> Iecos>>
Q/Iesin
48
> MiCOM P125 P126 & P127 – May,2005
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MiCOM P126 P127
Protection and Control Functions
 Additional Protection Functions
 Negative Sequence Overcurrent (46)
 Thermal Overload (Thermal Replica) (49)
 Broken Conductor (46 BC)
 Undercurrent (37)
 Residual Overvoltage (59N)
 Three Phase Overvoltage (59)
 Three Phase Undervoltage (27)
 Breaker Failure
 SOTF
 Local/ Remote control
49
> MiCOM P125 P126 & P127 – May,2005
49
MiCOM P126 P127
Protection and Control Functions
Negative Sequence Overcurrent Protection [46]
 Three thresholds
 First threshold with:

Definite trip delay time

Inverse trip delay time:
-
IEC, ANSI/IEEE, RI and RECT curves available
Definite reset time available on IEC and RI curves
Definite or Inverse time on IEEE/ANSI curves
 Second and third thresholds with definite trip delay time
50
> MiCOM P125 P126 & P127 – May,2005
50
MiCOM P126 P127
Protection Functions
Thermal Replica Overload Protection [49]
 Applications
 HV, MV and LV Cables
 HV, MV and LV Transformers
 Generators and Motors
 In accordance with IEC 60255-8
 Constant Time setting
 Two thresholds:
 Alarm threshold
 Trip threshold
51
> MiCOM P125 P126 & P127 – May,2005
51
MiCOM P126 P127
Thermal Replica Overload Protection [49]
52
> MiCOM P125 P126 & P127 – May,2005
52
MiCOM P126 P127
Protection Functions
 Broken Conductor Protection [46 BC]
 I2/I1 threshold to detect open circuit faults
 t I2/I1 Definite trip delay time
 Undercurrent Protection [37]
 Three phase undercurrent threshold (I<)
 Definite trip delay time
 Residual Overvoltage [59N]
 One independent residual Overvoltage threshold
(Ue>>>>) in addition to the thresholds available in
directional earth fault.
 Definite trip delay time t_Ue>>>>
53
> MiCOM P125 P126 & P127 – May,2005
53
MiCOM P127
Three Phase Overvoltage [59]
Protection Functions
 Two overvoltage thresholds
 Each threshold independently configurable for AND/OR operating mode
 Definite trip time
UU
»
AB
A»A/ /AB
»>=1
>=1
»>..>>
>..>>
U
»B/BC
U
»B/BC
»>..>>
>..>>
»TRIPDELAY
DELAY
TRIP
UU
»
»C/CA
C/CA
»>..>>
>..>>
AND/OR
54
> MiCOM P125 P126 & P127 – May,2005
»& &
Trip
command
Alarm
54
MiCOM P127
Three Phase Undervoltage [27]
Protection Functions
 Two undervoltage thresholds
 Each threshold independently configurable for AND/OR operating mode
 Definite trip time
UU
AA//AB
AB
<..<<
³1
1
UU
B/BC
<..<<
<..<<
TRIP DELAY
UU
C/CA
<..<<
<..<<
AND/OR
55
> MiCOM P125 P126 & P127 – May,2005
&
&
Trip
command
Alarm
55
MiCOM P126 P127
Circuit Breaker Failure [50BF]
Protection Functions
 Three independent high speed undercurrent threshold I<
 Definite time tBF
 Possibility to suspend blocking outputs (logic selectivity)
I <
A
I <
B
&
&
I <
C
RESET tBF
TIMER
tBF
tBF
&&
CB Fail
(50BF)
Trip order
order
56
> MiCOM P125 P126 & P127 – May,2005
56
MiCOM P125 P126 P127
Blocking / Selectivity Logic
 Possibility to configure digital input to receive blocking
 Two blocking logic group selectable by digital input
 Possibility to configure output relays to send blocking
 Short fault clearance time maintaining selectivity
 Setting from local, RS232 PC port and remote (Network)
AUTOMAT. CTRL
57
> MiCOM P125 P126 & P127 – May,2005
BLOCKING LOGIC
57
MiCOM P126 P127
Control Functions
58
> MiCOM P125 P126 & P127 – May,2005
58
MiCOM P126 P127
Control Functions
Sotf - Tor (Switch on to fault ) - (Trip on Reclose)
 An occured fault on the Control closing of the CB must be
cleared in a shortest time.
 SOTF/TOR function satisfies to this condition
 A t_SOTF timer is the new trip delay time for I>> and / or I>>>
pick up on a CB control closing on a fault.
 In case of a CB closing by ARC on a fault the 79 function will
move in lock status.
59
> MiCOM P125 P126 & P127 – May,2005
59
MiCOM P126 P127
Control Functions
Sotf - Tor Logic Diagram
SOTF/TOR
tI >
tI >>
>
tI >>>
Enable SOTF/TOR
for
AR close
MAN close
>
TC close
TC close
60
> MiCOM P125 P126 & P127 – May,2005
Trip
&
t
0
>
500 ms
t
0
Settable delay time
from 0 to 500ms
in steps of
0.001ms
I>>>
I>>>
Enable SOTF/TOR
for
AR close
MAN close
>
I>>
I>>
&
>
t
0
500 ms
60
MiCOM P126 P127
Control Functions
Eight “And, OR, NOT” Equation Logic User Configurable
On pick up
and reset
61
> MiCOM P125 P126 & P127 – May,2005
61
MiCOM P126 P127
Automation Function
Cold Load Pick-up
Current
Energisation period
characteristic
Normal load
characteristic
Energisation
current profile
Benefits:
 No requirement to use
alternate setting groups
 May eliminate need for earth fault
stabilising resistor
 Security /dependability on energisation
Potential applications:
 Motor feeders
 HV transformer earth fault protection
 Air conditioning
 Resistive heating Cold
Time
62
> MiCOM P125 P126 & P127 – May,2005
62
MiCOM P127
51V and VTS Supervision
(U<ORV2>)&I>> ?
NO
1
V<
YES
1
V2>
1
BlocksI>>
threshol
d
1
BlocksI>>>
threshol
d
&
(U<<ORV2>>)&I>>> ?
NO
1
V<<
YES
1
V2>>
&
VTS Blocks 51V .
YES
VTS
0
VTS
NO
VTSAlarm ?
YES
VTSAlarm
NO
 VTS condition is : VTS = (V2>0.3Vn AND I2<0.5In) OR (V1<0.1Vn
AND I>0.1In)
63
> MiCOM P125 P126 & P127 – May,2005
63
MiCOM P126 P127
Features
 Fully configurable matrix of:
 Functions / trip commands
 Functions / output relays
 Relay latching
 Blocking logic and logic selectivity
 Digital inputs / function
64
> MiCOM P125 P126 & P127 – May,2005
64
MiCOM P126 P127
Monitoring Functions
65
> MiCOM P125 P126 & P127 – May,2005
65
MiCOM P126 P127
Circuit Breaker Monitoring
 Cumulated I or I2 per phase
 Adjustable alarm threshold
 Display of  I or  I2
 Total of CB open number
 Adjustable alarm threshold
 Operating time
 Adjustable alarm thresholds for opening and closing times
66
> MiCOM P125 P126 & P127 – May,2005
66
MiCOM P126 P127
Trip Circuit Supervision
 Permanent supervision of wiring and polarity for whole trip
circuit including coil
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
Programmable logic input

Adjustable time supervision

t SUP : from 0.1 s to 10 s

User information (locally or remotely)
> MiCOM P125 P126 & P127 – May,2005
67
MiCOM P125 P126 & P127
Measurements and Recording
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> MiCOM P125 P126 & P127 – May,2005
68
MiCOM P126 & P127
Measurements and Recording
Istantaneous & Fault Recording (P126 & P127 only)
 Last 25 faults (last alarm)
 Date and time
 Flag information (Active setting group,
affected phase, operated element, magnitude, time)
 Displayed in front of the relay
 One or all records can be transferred using
RS232 front or RS485 rear communication port
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> MiCOM P125 P126 & P127 – May,2005
69
MiCOM P126 & P127
Event Recording (P126 & P127 only)
 All logic inputs and outputs change
 1 ms time stamped
 250 events stored in memory
 One or all records can be read and exported using RS232 front
or RS485 rear communication port
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> MiCOM P125 P126 & P127 – May,2005
70
MiCOM P126 & P127
Disturbance Recording (P126 & P127 only)
 5 disturbance records
 32 samples per cycle (1600 Hz sampling at 50 Hz)
 Pre and post trigger time adjustable up to 3 s
 One or all records can be transferred using
the RS232 front port or the RS485 rear communication port
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> MiCOM P125 P126 & P127 – May,2005
71
MiCOM P125 P126 & P127
Measurements
 P125: Earth fault current, Residual Voltage, Frequency, Peak
demand, max and medium values.
 P126: Phase currents, Positive sequence current, Negative
sequence current, Earth fault current, Residual voltage,
Frequency, Thermal status, Ratio I2/I1, max and medium
values
 P127: Phase currents, Positive sequence current, Negative
sequence current, Earth fault current, Residual voltage,
Thermal status, Ratio I2/I1, Input and calculated voltages ,
Frequency, Active Reactive three phase power, three
phase power factor, Active and Reactive Energy, max and
medium values.
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> MiCOM P125 P126 & P127 – May,2005
72
How select your MiCOM
P125 P126 & P127?
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> MiCOM P125 P126 & P127 – May,2005
73
Ordering Information P125 P126 P127
MiCOM P125 P126 & P127
Ordering Code
0
MiCOM
MiCOM
MiCOM
P
P
P
Earth current input
0.1 - 40 Ien
0.01 - 8 Ien
0.002 - 1 Ien
1 2 5
1 2 6
1 2 7
A
B
C
Voltage input
57 -130 V
220 - 480V
Auxiliary supply voltage
24 - 60V
48 - 150 Vdc
130 - 250 Vdc/100 - 250 Vac
48 - 150 Vdc
130 - 250 Vdc
A
B
Digital Input Voltage
24 - 60V
48 - 150 Vdc
130 - 250 Vdc/100 - 250 Vac
48 - 150 Vdc (UK Standard)
130 - 250 Vdc (UK Standard)
Communication protocol
MODBUS
KBUS / COURIER (not yet available)
IEC 60870 - 103
DNP3 (not yet available)
HMI Language
French
English / American
Spanish
German
Italian
Russian
Polish
Portuguese
Dutch
Czech
Hungarian
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> MiCOM P125 P126 & P127 – May,2005
1
A
F
M
T
U
1
2
3
4
0
1
2
3
4
5
6
7
8
A
B
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