Micom ALSTOM P341 Operator's manual

MiCOM P341
P341/EN AD/F43 © 2011. ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and service marks of ALSTOM. The other names
mentioned, registered or not, are the property of their respective companies. The technical and other data contained in this document is provided for information only.
Neither ALSTOM, its officers or employees accept responsibility for, or should be taken as making any representation or warranty (whether express or implied), as to
the accuracy or completeness of such data or the achievement of any projected performance criteria where these are indicated. ALSTOM reserves the right to revise or
change this data at any time without further notice.
GRID
Update Documentation
Interconnection Protection Relay
Platform Hardware Version: J
Platform Software Version: 32
Publication Reference: P341/EN AD/F43

Update Documentation P341/EN AD/F43
MiCOM P341
UPDATE DOCUMENTATION
Date: 27th February 2008
Hardware Suffix: J
Software Version: 32
Connection Diagrams: 10P341xx (xx = 01 to 04)

P341/EN AD/F43 Update Documentation
MiCOM P341

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -1
P341 UPDATE DOCUMENTATION
Since versions 0300 & 0310J, several changes on existing features have been added.
These are described with reference to the documentation listed below:
Release Version Documentation
04.08.2006 P341/EN M/F33 Technical Manual
Document Ref. Section Page No. Description
P341/EN TD/F33
- 1-30
Technical data
New format
- -
Mechanical specifications
Optional Rear IRIG-B Interface : modulated
or de-modulated added
Optional Rear Ethernet Connection for
IEC 61850 : data added
10BaseT/100BaseTX Communications : data
added
100 Base FX Interface : data added
High break contacts : data added
IRIG-B Interface : (Modulated) added
IRIG-B 00X Interface (De-modulated) : data
added
EMC Compliance : 89/336/EEC updated to
2004/108/EC
Product Safety : 73/23/EEC updated to
2006/95/EC
CE : 73/23/EEC updated to 2004/108/EC
R&TTE Compliance : 73/23/EEC updated to
2006/95/EC
Amended by 93/68/EEC : line deleted

P341/EN AD/F43 Update Documentation
(AD) -2 MiCOM P341
Document Ref. Section Page No. Description
P341/EN TD/F33
Continued
- -
Protection functions
Overvoltage IDMT Pick-up: 1.05 x deleted
Drop-off : 0.95 changed to 0.98
Measurements and recording facilities
frequency : 5 changed to 40
Disturbance records : IEC 61850 added
IEC 61850 ethernet data : data and tables
added
- -
Settings, measurements and records list
Date and time : data added
Oscillography (disturbance recorder) : 15
amended to 8
Optional ethernet port : data added
IED configurator : data added
IEC 61850 GOOSE : data added
- -
Protection functions
System Config : CT1 Reversal changed to
CT Reversal
Reverse/low forward/over power : Title
amended & 0.5% changed to 2%
Sensitive/reverse/low forward/over power :
title amended
- -
Supervisory functions
Current transformer supervision : last line
deleted
- -
Measurements list
Measurements 1: data added
Measurements 2 : data added
Measurements 3 : data added
Circuit Breaker Monitoring Statistics : new
section
P341/EN AP/F33
- -
DDB numbers
DDB numbers have changed : refer to
P34x/EN GC/H54
2.1 10-11
Configuration column
Select via Optos : amended to PSL
System Config : data added
2.3 13-14
Phase rotation
New section
2.3.1 14
Description
New section

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -3
Document Ref. Section Page No. Description
P341/EN AP/F33
Continued
2.3.1.1 14
Phase reversal switches affecting all CTs
and VTs
New section
Figure 1 : new
Figure 2 : new
2.3.2 14
System config settings
New section
4.9 109 - 110
Disturbance recorder
Paragraph 1 : 3rd sentence amended
Paragraph 3 : amended
Analog channel : table amended and data
added
Note : amended
4.11 114
Changing setting groups
Amended to reflect new functionality
provided with PSL
4.18 118
Any trip
New section
4.19 118
Date and time
New section
6 124
Auxiliary supply fuse rating
New section
P341/EN SC/F33
9 55
IEC 61850 ethernet interface
New sections
9.1 -
Introduction
New section
9.2 -
What is IEC 61850?
New section
9.21 -
Interoperability
New section
9.2.2 -
The data model
New section
Figure 8 : new
9.3 -
IEC 61850 in MiCOM relays
New section
9.3.1 -
Capability
New section
9.3.2 -
IEC 61850 configuration
New section
9.3.2.1 -
Configuration banks
New section

P341/EN AD/F43 Update Documentation
(AD) -4 MiCOM P341
Document Ref. Section Page No. Description
P341/EN SC/F33
continued 9.3.2.2 -
Network connectivity
New section
9.4 -
The data model of MiCOM relays
New section
9.5 -
The communication services of MiCOM
relays
New section
9.6 -
Peer-to-peer (GSE) communications
New section
9.6.1 -
Scope
New section
9.6.2 -
IEC 61850 GOOSE configuration
New section
9.7 -
Ethernet functionality
New section
9.7.1 -
Ethernet disconnection
New section
9.7.2 -
Loss of power
New section
P341/EN IN/F33
6.9 13
Ethernet port for IEC 61850
New section
P341/EN HW/F33
1.1.6 4
Ethernet board
New section
Figure 1 : updated
2.4.3 9
High break relay board
New section
Figure 3 : new
2.4.3.1 9
High break contact applications
New section
2.9 12
Ethernet board
New section
Figure 5 : new
P341/EN VH/F33
- -
Firmware and service manual version
history
Updated to reflect latest relay software
- 29
Ordering information
Hardware options : data amended
Protocol options : data amended
Design suffix & note design suffix : data
amended

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -1
TECHNICAL DATA (P341/EN TD/F33)

P341/EN AD/F43 Update Documentation
(AD) -6 MiCOM P341
Mechanical Specifications
Design
Modular MiCOM Px40 platform relay, P341 in
40TE case. Mounting is front of panel flush
mounting, or 19“ rack mounted with rack frame
(ordering options).
Enclosure Protection
Per IEC 60529: 1989:
IP 52 Protection (front panel) against dust and
dripping water,
IP 50 Protection for sides of the case,
IP 10 Protection for the rear.
Weight
P341 (40TE) :7kg
Terminals
AC Current and Voltage Measuring Inputs
Located on heavy duty (black) terminal block:
Threaded M4 terminals, for ring lug
connection.
CT inputs have integral safety shorting, upon
removal of the terminal block.
General Input/Output Terminals
For power supply, opto inputs, output contacts
and RP1 rear communications.
Located on general purpose (grey) blocks:
Threaded M4 terminals, for ring lug
connection.
Case Protective Earth Connection
Two rear stud connections, threaded M4.
Must be earthed (grounded) for safety,
minimum earth wire size 2.5mm2.
Front Port Serial PC Interface
EIA(RS)232 DCE, 9 pin D-type female
connector Socket SK1.
Courier protocol for interface to MiCOM S1
software.
Isolation to ELV (extra low voltage) level.
Maximum cable length 15m.
Front Download/Monitor Port
EIA(RS)232, 25 pin D-type female connector
Socket SK2.
For firmware and menu text downloads.
Isolation to ELV level.
Rear Communications Port (RP1)
EIA(RS)485 signal levels, two wire
connections located on general purpose block,
M4 screw.
For screened twisted pair cable, multidrop,
1000m max.
For K-Bus, IEC-60870-5-103, MODBUS or
DNP3.0 protocol (ordering options).
Isolation to SELV (safety extra low low voltage)
level.
Optional Rear Fiber Connection for
SCADA/DCS
BFOC 2.5 -(ST®)-interface for glass fiber, as
per IEC 874-10.
850nm short-haul fibers, one Tx and one Rx.
For Courier, IEC-60870-5-103, MODBUS or
DNP3.0 (Ordering options).
Optional Second Rear Communications
Port (RP2)
EIA(RS)232, 9 pin D-type female connector,
socket SK4.
Courier protocol: K-Bus, EIA(RS)232, or
EIA(RS)485 connection.
Isolation to SELV level.
Optional Rear IRIG-B Interface modulated
or de-modulated
BNC plug
Isolation to SELV level.
50 ohm coaxial cable.
Optional Rear Ethernet Connection for
IEC 61850
10BaseT/100BaseTX Communications
Interface in accordance with IEEE802.3 and
IEC 61850
Isolation: 1.5kV
Connector type: RJ45
Cable type: Screened Twisted Pair (STP)
Max. cable length: 100m
100 Base FX Interface
Interface in accordance with IEEE802.3 and
IEC 61850
Wavelength: 1300nm
Fiber: multi-mode 50/125µm or 62.5/125µm
Connector type: BFOC 2.5 - (ST®)
Ratings
AC Measuring Inputs
Nominal frequency: 50 and 60 Hz (settable)
Operating range: 40 to 70 Hz

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -7
AC Current
Nominal current (In): 1 and 5 A dual rated.
(1A and 5A inputs use different transformer tap
connections, check correct terminals are
wired).
Nominal burden:
<0.04 VA at In, <40m(0-30In)In = 1A
<0.01 VA at In, <8m(0-30In) In = 5A
Thermal withstand:
continuous 4 In
for 10 s: 30 In
for 1 s; 100 In
Standard: linear to 64 In (non-offset AC
current).
Sensitive: linear to 2 In (non-offset AC
current).
AC Voltage
Nominal voltage (Vn): 100 to 120 V or 380 to
480 V phase-phase.
Nominal burden per phase: < 0.02 VA at
110/3 V or 440/3 V
Thermal withstand:
continuous 2 Vn
for 10s: 2.6 Vn
Linear to 200V (100V/120V), 800V (380/480V).
Power Supply
Auxiliary Voltage (Vx)
Three ordering options:
(i) Vx: 24 to 48 Vdc
(ii) Vx: 48 to 110 Vdc, and 30 to 100Vac (rms)
(iii) Vx: 110 to 250 Vdc, and 100 to
240Vac (rms)
Operating Range
(i) 19 to 65V (dc only for this variant)
(ii) 37 to 150V (dc), 24 to 110V (ac)
(iii) 87 to 300V (dc), 80 to 265V (ac).
With a tolerable ac ripple of up to 12% for a dc
supply, per IEC 60255-11: 1979.
Nominal Burden
Quiescent burden: 11W or 24 VA. (Extra
1.25W when fitted with second rear
communications board).
Additions for energized binary inputs/outputs:
Per opto input:
0.09W (24 to 54V),
0.12W (110/125V),
0.19W (220/250V).
Per energized output relay: 0.13W
Power-up Time
Time to power up < 11s.
Power Supply Interruption
Per IEC 60255-11: 1979:
The relay will withstand a 20ms interruption
in the DC auxiliary supply, without
de-energizing.
Per IEC 61000-4-11: 1994:
The relay will withstand a 20ms interruption
in an AC auxiliary supply, without
de-energizing.
Battery Backup
Front panel mounted
Type ½ AA, 3.6V Lithium Thionyl Chloride
Battery (SAFT advanced battery reference
LS14250)
Battery life (assuming relay energized
for 90% time) >10 years
Field Voltage Output
Regulated 48Vdc
Current limited at 112mA maximum output
Operating range 40 to 60V
Digital (“Opto”) Inputs
Universal opto inputs with programmable
voltage thresholds (24/27, 30/34, 48/54,
110/125, 220/220V). May be energized from
the 48V field voltage, or the external battery
supply.
Rated nominal voltage: 24 to 250Vdc
Operating range: 19 to 265Vdc
Withstand: 300Vdc, 300Vrms.
Nominal pick-up and reset thresholds:
Nominal battery 24/27: 60 - 80% DO/PU
(logic 0) <16.2 (logic 1) >19.2
Nominal battery 24/27: 50 - 70% DO/PU
(logic 0) <12.0 (logic 1) >16.8
Nominal battery 30/34: 60 - 80% DO/PU
(logic 0) <20.4 (logic 1) >24.0
Nominal battery 30/34: 50 - 70% DO/PU
(logic 0) <15.0 (logic 1) >21.0
Nominal battery 48/54: 60 - 80% DO/PU
(logic 0) <32.4 (logic 1) >38.4
Nominal battery 48/54: 50 - 70% DO/PU
(logic 0) <24.0 (logic 1) >33.6
Nominal battery 110/125:60 - 80% DO/PU
(logic 0) <75.0 (logic 1) >88.0
Nominal battery 110/125:50 - 70% DO/PU
(logic 0) <55.0 (logic 1) >77.0
Nominal battery 220/250:60 - 80% DO/PU
(logic 0) <150.0 (logic 1) >176.0
Nominal battery 220/250:50 - 70% DO/PU
(logic 0) <110 (logic 1) >154
Recognition time:
<2ms with long filter removed,
<12ms with half cycle ac immunity filter on

P341/EN AD/F43 Update Documentation
(AD) -8 MiCOM P341
Output Contacts
Standard Contacts
General purpose relay outputs for signaling,
tripping and alarming:
Rated voltage: 300 V
Continuous current: 10 A
Short-duration current: 30 A for 3 s
Making capacity: 250A for 30 ms
Breaking capacity:
DC: 50W resistive
DC: 62.5W inductive (L/R = 50ms)
AC: 2500VA resistive (cos = unity)
AC: 2500VA inductive (cos = 0.7)
AC: 1250VA inductive (cos = 0.5)
Subject to maxima of 10A and 300V
Response to command: < 5ms
Durability:
Loaded contact: 10 000 operations
minimum,
Unloaded contact: 100 000 operations
minimum.
High Break Contacts
Relay outputs for tripping:
Rated voltage: 300 V
Continuous current: 10 A dc
Short-duration current: 30 A dc for 3 s
Making capacity: 250A dc for 30 ms
Breaking capacity:
DC: 7500W resistive
DC: 2500W inductive (L/R = 50ms)
Subject to maxima of 10A and 300V
Response to command: < 0.2ms
Durability:
Loaded contact: 10 000 operations
minimum,
Unloaded contact: 100 000 operations
minimum.
Watchdog Contacts
Non-programmable contacts for relay
healthy/relay fail indication:
Breaking capacity:
DC: 30W resistive
DC: 15W inductive (L/R = 40ms)
AC: 375VA inductive (cos = 0.7)
IRIG-B Interface (Modulated)
External clock synchronization per IRIG
standard 200-98, format B12x
Input impedance 6kat 1000Hz
Modulation ratio: 3:1 to 6:1
Input signal, peak-peak: 200mV to 20V
IRIG-B 00X Interface (De-modulated)
External clock synchronization per IRIG
standard 200-98, format B00X.
Input signal TTL level
Input impedance at dc 10k
Environmental Conditions
Ambient Temperature Range
Per IEC 60255-6: 1988:
Operating temperature range:
-25°C to +55°C (or -13°F to +131°F)
Storage and transit:
-25°C to +70°C (or -13°F to +158°F)
Ambient Humidity Range
Per IEC 60068-2-3: 1969:
56 days at 93% relative humidity and +40 °C
Per IEC 60068-2-30: 1980
Damp heat cyclic, six (12 + 12) hour cycles,
93% RH, +25 to +55 °C
Type Tests
Insulation
Per IEC 60255-5: 2000:
Insulation resistance > 100Mat 500Vdc
(Using only electronic/brushless insulation
tester).
Creepage Distances and Clearances
IEC 60255-27: 2005
Pollution degree 3,
Overvoltage category III,
Impulse test voltage 5 kV.
High Voltage (Dielectric) Withstand
(i) Per IEC 60255-5: 2000, 2 kV rms
AC, 1 minute:
Between all independent circuits.
Between independent circuits and protective
(earth) conductor terminal.
1kV rms AC for 1 minute, across open
watchdog contacts.
1kV rms AC for 1 minute, across open
contacts of changeover output relays.
1kV rms AC for 1 minute for all D-type
EIA(RS)232/EIA(RS)485 ports between
the communications port terminals and
protective (earth) conductor terminal.
(ii) Per ANSI/IEEE C37.90-1989 (reaffirmed
1994):
1.5 kV rms AC for 1 minute, across open
contacts of normally open output relays.
1kV rms AC for 1 minute, across open
watchdog contacts.
1kV rms AC for 1 minute, across open
contacts of changeover output relays.
Impulse Voltage Withstand Test
Per IEC 60255-5: 2000:
Front time: 1.2 µs, Time to half-value: 50 µs,
Peak value: 5 kV, 0.5J

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -9
Between all independent circuits.
Between all independent circuits and
protective (earth) conductor terminal.
Between the terminals of independent circuits.
EIA(RS)232 & EIA(RS)485 ports and normally
open contacts of output relays excepted.
Electromagnetic Compatibility
(EMC)
1 MHz Burst High Frequency Disturbance
Test
Per IEC 60255-22-1: 1988, Class III,
Common-mode test voltage: 2.5 kV,
Differential test voltage: 1.0 kV,
Test duration: 2 s, Source impedance: 200 
(EIA(RS)232 ports excepted).
Immunity to Electrostatic Discharge
Per IEC 60255-22-2: 1996, Class 4,
15kV discharge in air to user interface,
display, communication port and exposed
metalwork.
6kV point contact discharge to any part of the
front of the product.
Electrical Fast Transient or Burst
Requirements
Per IEC 60255-22-4: 2002 and
EN61000-4-4:2004. Test severity Class III and
IV:
Amplitude: 2 kV, burst frequency 5kHz
(Class III),
Amplitude: 4 kV, burst frequency 2.5kHz
(Class IV).
Applied directly to auxiliary supply, and applied
to all other inputs. (EIA(RS)232 ports
excepted).
Amplitude: 4 kV, burst frequency 5 kHz
(Class IV) applied directly to auxiliary.
Surge Withstand Capability
Per IEEE/ANSI C37.90.1: 2002:
4kV fast transient and 2.5kV oscillatory applied
directly across each output contact, optically
isolated input, and power supply circuit.
Surge Immunity Test
(EIA(RS)232 ports excepted).
Per IEC 61000-4-5: 1995 Level 4,
Time to half-value: 1.2 / 50 µs,
Amplitude: 4kV between all groups and
protective (earth) conductor terminal.
Amplitude: 2kV between terminals of each
group.
Immunity to Radiated Electromagnetic
Energy
Per IEC 60255-22-3: 2000, Class III:
Test field strength, frequency band 80 to 1000
MHz:
10 V/m,
Test using AM: 1 kHz / 80%,
Spot tests at 80, 160, 450, 900 MHz
Per IEEE/ANSI C37.90.2: 2004:
80MHz to 1000MHz, 1kHz 80% AM and AM
pulsed modulated.
Field strength of 35V/m.
Radiated Immunity from Digital
Communications
Per EN61000-4-3: 2002, Level 4:
Test field strength, frequency band 800 to 960
MHz, and 1.4 to 2.0 GHz:
30 V/m,
Test using AM: 1 kHz/80%.
Radiated Immunity from Digital Radio
Telephones
Per IEC61000-4-3: 2002:
10 V/m, 900MHz and 1.89GHz.
Immunity to Conducted Disturbances
Induced by Radio Frequency Fields
Per IEC 61000-4-6: 1996, Level 3,
Disturbing test voltage: 10 V.
Power Frequency Magnetic Field Immunity
Per IEC 61000-4-8: 1994, Level 5,
100A/m applied continuously,
1000A/m applied for 3s.
Per IEC 61000-4-9: 1993, Level 5,
1000A/m applied in all planes.
Per IEC 61000-4-10: 1993, Level 5,
100A/m applied in all planes at
100kHz/1MHz with a burst duration of 2s.
Conducted Emissions
Per EN 55022: 1998 Class A:
0.15 - 0.5MHz, 79dBV (quasi peak) 66dBV
(average)
0.5 - 30MHz, 73dBV (quasi peak) 60dBV
(average).
Radiated Emissions
Per EN 55022: 1998 Class A:
30 - 230MHz, 40dBV/m at 10m
measurement distance
230 - 1GHz, 47dBV/m at 10m measurement
distance.

P341/EN AD/F43 Update Documentation
(AD) -10 MiCOM P341
EU Directives
EMC Compliance
Per 2004/108/EC:
Compliance to the European Commission
Directive on EMC is claimed via the Technical
Construction File route. Product Specific
Standards were used to establish conformity:
EN50263: 2000
Product Safety
Per 2006/95/EC:
Compliance with European Commission Low
Voltage Directive. Compliance is
demonstrated by reference to generic safety
standards:
EN60255-27: 2005
EN60255-5: 2001
2004/108/EC:
R&TTE Compliance
Radio and Telecommunications Terminal
Equipment (R & TTE) directive 95/5/EC.
Compliance demonstrated by compliance to
the Low Voltage Directive, 2006/95/EC:
down to zero volts by reference to safety
standards.
Applicable to rear communications ports.
ATEX Compliance
ATEX Potentially Explosive Atmospheres
directive 94/9/EC, for equipment.
The equipment is compliant with Article 1(2) of
European directive 94/9/EC.
It is approved for operation outside an ATEX
hazardous area. It is however approved for
connection to Increased Safety, “Ex e”, motors
with rated ATEX protection, Equipment
Category 2, to ensure their safe operation in
gas Zones 1 and 2 hazardous areas.
CAUTION - Equipment with this marking is not
itself suitable for operation within a potentially
explosive atmosphere.
Compliance demonstrated by Notified Body
certificates of compliance.
II (2) G
Mechanical Robustness
Vibration Test
Per IEC 60255-21-1: 1996:
Response Class 2
Endurance Class 2
Shock and Bump
Per IEC 60255-21-2: 1996:
Shock response Class 2
Shock withstand Class 1
Bump Class 1
Seismic Test
Per IEC 60255-21-3: 1995:
Class 2
P34x THIRD PARTY COMPLIANCES
(UL/CUL, ENA)
File Number: E202519
Original Issue Date: 05-10-2002
(Complies with Canadian and US
requirements).
Certificate Number: 104 Issue 2
Assessment Date: 16-04-2004
Protection Functions
Reverse/Low Forward/Over Power
Accuracy
Pick-up: Setting 10%
Reverse/Over Power Drop-off:
0.95 of setting 10%
Low forward power Drop-off:
1.05 of setting 10%
Angle variation Pick-up:
Expected pick-up angle 2 degree
Angle variation Drop-off:
Expected drop-off angle 2.5 degree
Operating time: 2% or 50ms whichever is
greater
Repeatability: <5%
Disengagement time: <50ms
tRESET: 5%
Instantaneous operating time: <50ms

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -11
Sensitive/Low Forward/Over Power
Accuracy
Pick-up: Setting 10%
Reverse/Over power Drop-off:
0.9 of setting 10%
Low forward power Drop-off:
1.1 of Setting 10%
Angle variation Pick-up:
Expected pick-up angle 2 degree
Angle variation Drop-off:
Expected drop-off angle 2.5% degree
Operating time: 2% or 50ms whichever is
greater
Repeatability: <5%
Disengagement time: <50ms
tRESET: 5%
Instantaneous operating time: <50ms
Directional/Non-Directional
Overcurrent
Accuracy
Pick-up: Setting 5%
Drop-off: 0.95 x Setting 5%
Minimum trip level (IDMT): 1.05 x Setting 5%
IDMT characteristic shape: 5% or 40ms
whichever is greater*
IEEE reset: 5% or 50ms whichever is greater
DT operation: 2% or 50ms whichever is
greater
DT Reset: 5%
Directional accuracy (RCA 90):
2hysteresis 2
Characteristic UK: IEC 6025-3…1998
Characteristic US: IEEE
C37.112…1996
* Under reference conditions
Negative Phase Sequence
Overcurrent
Accuracy
I2>Pick-up: Setting 5%
I2> Drop-off: 0.95 x Setting 5%
Vpol Pick-up: Setting 5%
Vpol Drop-off: 0.95 x Setting 5%
DT operation: 2% or 60ms whichever is
greater
Disengagement time: <35ms
Directional accuracy (RCA 90):
2hysteresis <1%
Repeatability (operating times): <10ms
Thermal Overload
Accuracy
Setting accuracy: 5%
Reset: 95% of thermal setting 5%
Thermal alarm Pick-up:
Calculated trip time 5%
Thermal overload Pick-up:
Calculated trip time 5%
Cooling time accuracy: 5% of theoretical
Repeatability: <2.5%
Directional/Non-Directional Earth
Fault
Earth Fault Accuracy
Pick-up: Setting 5%
Drop-off: >0.85 x Setting 5%
IDMT trip level elements: 1.05 x Setting 5%
IDMT characteristic shape: 5% or 40ms
whichever is greater*
IEEE reset: 5% or 40ms whichever is greater
DT operation: 2% or 50ms whichever is
greater
DT reset: 5%
Repeatability: 5%
SEF Accuracy
Pick-up: Setting 5%
Drop-off: 0.95 x Setting 5%
IDMT trip level elements: 1.05 x Setting 5%
IDMT characteristic shape: 5% or 40ms
whichever is greater*
IEEE reset: 7.5% or 60ms whichever is
greater
DT operation: 2% or 50ms whichever is
greater
DT reset: 5%
Repeatability: 5%
Wattmetric SEF Accuracy
P = 0W Pick-up: ISEF> 5%
P > 0W Pick-up: P> 5%
P = 0W Drop-off: (0.95 x ISEF>) 5%
P > 0W Drop-off: 0.9 x P> 5%
Boundary accuracy: 5% with 1hysteresis
Repeatability: 5%
Zero Sequence Polarizing Quantities
Accuracy
Operating boundary Pick-up: 2of RCA 90
Hysteresis: <3
Vnpol Pick-up: Setting 10%
Vnpol Drop-off: 0.9 x Setting or 0.7V
(whichever is greater) 10%

P341/EN AD/F43 Update Documentation
(AD) -12 MiCOM P341
Negative Sequence Polarizing Quantities
Accuracy
Operating boundary Pick-up: 2of RCA 90
Hysteresis: <3
V2pol Pick-up: Setting 10%
V2pol Drop-off: 0.9 x Setting or 0.7V
(whichever is greater) 10%
I2pol Pick-up: Setting 10%
I2pol Drop-off: 0.9 x Setting 10%
Restricted Earth Fault
Accuracy
Pick-up: Setting formula 5%
Drop-off: 0.80 (or better) of calculated
differential current
High impedance Pick-up: Setting 5%
High impedance operating time: <30ms
Transient Overreach and Overshoot
Accuracy
Additional tolerance X/R ratios:
5% over the X/R ratio of 1…90
Overshoot of overcurrent elements: <40ms
Disengagement time: <60ms (65ms SEF)
Neutral Displacement/Residual
Overvoltage
Accuracy
DT/IDMT Pick-up: Setting 5%
Drop-off: 0.95 x Setting 5%
IDMT characteristic shape: 5% or 55ms
whichever is greater
DT operation: 2% or 55ms whichever is
greater Instantaneous operation <55ms
Reset: <35ms
Repeatability: <1%
df/dt
Accuracy
Pick-up: Setting 0.5Hz/s
Operating time: 2% or 160ms whichever is
greater
Lower/Upper dead band operating time: 2%
or 160ms whichever is greater
Operation over dead band: 2% or 170ms
whichever is greater
Repeatability: <5%
Voltage Vector Shift
Accuracy
Pick-up: Setting 0.5
Trip pulse time: 500ms 2%
Reconnect Delay
Accuracy
Operating time: 2% or 50ms whichever is
greater
Undervoltage
Accuracy
DT Pick-up: Setting 5%
IDMT Pick-up: 0.95 x Setting 5%
Drop-off: 1.05 x Setting 5%
IDMT characteristic shape: 2% or 50ms
whichever is greater
DT operation: 2% or 50ms whichever is
greater
Reset: <75ms
Repeatability: <1%
Overvoltage
Accuracy
DT Pick-up: Setting 5%
IDMT Pick-up: Setting 5%
Drop-off: 0.98 x Setting 5%
IDMT characteristic shape: 2% or 50ms
whichever is greater
DT operation: 2% or 50ms whichever is
greater
Reset: <75ms
NPS Overvoltage
Accuracy
Pick-up: Setting 5%
Drop-off: 0.95 x Setting 5%
Repeatability (operating threshold): <1%
DT operation: 2% or 65ms whichever is
greater
Instantaneous operation: <60 ms
Instantaneous operation:
(accelerated): <45 ms
Disengagement time: <35ms
Repeatability (operating times): <10ms
Underfrequency
Accuracy
Pick-up: Setting 0.01Hz
Drop-off: (Setting +0.025HZ) 0.01Hz
DT operation: 2% or 50ms whichever is
greater*
* The operating will also include a time for
the relay to frequency track 20Hz/ second).

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -13
Overfrequency
Accuracy
Pick-up: Setting 0.01Hz
Drop-off: (Setting -0.025Hz) 0.01Hz
DT operation: 2% or 50ms whichever is
greater *
* The operating will also include a time for
the relay to frequency track 20Hz/ second).
CB Fail
Timer Accuracy
Timers: 2% or 40ms whichever is greater
Reset time: <30ms
Undercurrent Accuracy
Pick-up: 10% or 25mA whichever is greater
Operating time: < 12ms (Typical <10ms)
Reset: < 15ms (Typical < 10ms)
Supervisory Functions
Voltage Transformer Supervision
Accuracy
Fast block operation: <25ms
Fast block reset: <30ms
Time delay: Setting 2% or 20ms whichever is
greater
Current Transformer Supervision
Accuracy
IN > Pick-up: Setting 5%
VN < Pick-up: Setting 5%
IN > Drop-off: 0.9 x Setting 5%
VN < Drop-off: (1.05 x Setting) 5% or 1V
whichever is greater
CTS block operation: < 1 cycle
CTS reset: < 35ms
Plant Supervision
CB State Monitoring Control and
Condition Monitoring
Accuracy
Timers: 2% or 20ms whichever is greater
Broken current accuracy: 5%
Programmable Scheme Logic
Accuracy
Output conditioner timer: Setting 2% or 50ms
whichever is greater
Dwell conditioner timer: Setting 2% or 50ms
whichever is greater
Pulse conditioner timer: Setting 2% or 50ms
whichever is greater
Measurements and Recording
Facilities
Measurements
Accuracy
Current: 0.05…3 In: 1% of reading
Voltage: 0.05…2 Vn: 5% of reading
Power (W): 0.2…2 Vn, 0.05…3 In: 5% of
reading at unity power factor
Reactive Power (VArs): 0.2…2 Vn, 0.05…3 In:
5% of reading at zero power factor
Apparent Power (VA): 0.2…2 Vn, 0.05…3 In:
5% of reading
Energy (Wh): 0.2…2 Vn, 0.2…3 In: 5% of
reading at zero power factor
Energy (Varh): 0.2…2 Vn, 0.2…3 In: 5% of
reading at zero power factor
Phase accuracy: 0…360: 5%
Frequency: 40…70Hz: 0.025Hz
IRIG-B and Real Time Clock
Performance
Year 2000: Compliant
Real time accuracy: < 1 second / day
Features
Real time 24 hour clock settable in hours,
minutes and seconds
Calendar settable from January 1994 to
December 2092
Clock and calendar maintained via battery
after loss of auxiliary supply
Internal clock synchronization using IRIG-B
Interface for IRIG-B signal is BNC
Current Loop Input and Outputs
Accuracy
Current loop input accuracy: 1% of full scale
CLI drop-off threshold Under: setting 1% of
full scale
CLI drop-off threshold Over: setting 1% of full
scale

P341/EN AD/F43 Update Documentation
(AD) -14 MiCOM P341
CLI sampling interval: 50ms
CLI instantaneous operating time: < 250ms
CLI DT operating time: 2% setting or 200ms
whichever is the greater
CLO conversion interval: 50ms
CLO latency: < 1.07s or <70ms depending on
CLO output parameter’s internal refresh rate
- (1s or 0.5 cycle)
Current loop output accuracy: 0.5% of full
scale
Repeatability: <5%
CLI - Current Loop Input
CLO - Current Loop Output
Other Specifications
CLI load resistance 0-1 mA: < 4k
CLI load resistance 0-1mA/0-20mA/4 20mA:
<300
Isolation between common input channels:
zero
Isolation between input channels and case
earth/other circuits: 2kV rms for 1 minute
CLO compliance voltage 0-1mA/0 10mA: 10V
CLO compliance voltage 0-20mA/4 20mA:
8.8V
Isolation between common output channels:
zero
Isolation between output channels and case
earth/other circuits: 2kV rms for 1 minute
Disturbance Records
Accuracy
Magnitude and relative phases: 5% of applied
quantities
Duration: 2%
Trigger Position: 2% (minimum 100ms)
Record length: 50 records each 1.5s duration
(75s total memory) with 8 analogue channels
and 32 digital channels (Courier, MODBUS,
DNP 3.0, IEC61850), 8 records each 3s
(50Hz) or 2.5s (60Hz) duration
(IEC60870-5-103).
Event, Fault & Maintenance Records
Maximum 512 events in a cyclic memory
Maximum 5 fault records
Maximum 10 maintenance records
Accuracy
Event time stamp resolution 1ms
IEC 61850 Ethernet Data
100 Base FX Interface
Transmitter Optical Characteristics
(TA = 0°C to 70°C, VCC = 4.75 V to 5.25 V)
Parameter Sym Min. Typ. Max. Unit
Output Optical
Power BOL
62.5/125 µm,
NA = 0.275
Fiber EOL
PO -19
-20 -16.8 -14 dBm
avg.
Output Optical
Power BOL
50/125 µm,
NA = 0.20 Fiber
EOL
PO -22.5
-23.5 -20.3 -14 dBm
avg.
Optical
Extinction Ratio 10
-10
%
dB
Output Optical
Power at Logic
“0” State
PO
(“0”) -45
dBm
avg.
BOL - Beginning of life
EOL - End of life
Receiver Optical Characteristics
(TA = 0°C to 70°C, VCC = 4.75 V to 5.25 V)
Parameter Sym Min. Typ. Max. Unit
Input Optical
Power
Minimum at
Window Edge
PIN
Min.
(W) -33.5 –31
dBm
avg.
Input Optical
Power
Minimum at
Eye Center
PIN
Min.
(C) -34.5 -31.8
Bm
avg.
Input Optical
Power
Maximum
PIN
Max. -14 -11.8 dBm avg.
Note: The 10BaseFL connection will no
longer be supported as IEC 61850
does not specify this interface
Settings, Measurements and
Records List
Settings List
Global Settings (System Data)
Language: English/French/German/Spanish
Frequency: 50/60Hz
Circuit Breaker Control
(CB Control):
CB Control by:
Disabled
Local
Remote
Local+Remote
Opto
Opto+local
Opto+Remote

Update Documentation P341/EN AD/F43
MiCOM P341 (AD) -15
Opto+Rem+local
Close Pulse Time: 0.10...10.00s
Trip Pulse Time: 0.10…5.00s
Man Close t max: 0.01…9999.00s
Man Close Delay: 0.01…600.00s
CB Healthy Time: 0.01…9999.00s
Check Sync. Time: 0.01...9999.00s
Reset Lockout by: User Interface/CB Close
Man Close RstDly: 0.10...600.00s
CB Status Input:
None
52A
52B
52A & 52B
Date and Time
IRIG-B Sync: Disabled/Enabled
Battery Alarm: Disabled/Enabled
LocalTime Enable: Disabled/Fixed/Flexible
LocalTime Offset: -720 min…720min
DST Enable: Disabled/Enabled
DST Offset: 30min…60min
DST Start: First/Second/Third/Fourth/
Last
DST Start Day: Sun/Mon/Tues/Wed/
Thurs/Fri/Sat
DST Start Month: Jan/Feb/Mar/Apr/May/Jun/
Jul/Aug/Sept/Oct/Nov/Dec
DST Start Mins: 0min…1425min
DST End: First/Second/Third/Fourth/
Last
DST End Day: Sun/Mon/Tues/Wed/
Thurs/Fri/Sat
DST End Month: Jan/Feb/Mar/Apr/May/Jun/
Jul/Aug/Sept/Oct/Nov/Dec
DST End Mins: 0min…1425min
RP1 Time Zone: UTC/Local
RP2 Time Zone: UTC/Local
Tunnel Time Zone: UTC/Local
Configuration
Setting Group:
Select via Menu
Select via PSL
Active Settings: Group 1/2/3/4
Setting Group 1: Disabled/Enabled
Setting Group 2: Disabled/Enabled
Setting Group 3: Disabled/Enabled
Setting Group 4: Disabled/Enabled
System Config: Invisible/Visible
Power: Disabled/Enabled
Overcurrent: Disabled/Enabled
Thermal Overload: Disabled/Enabled
Earth Fault: Disabled/Enabled
SEF/REF/Spower: Disabled or SEF/REF or
Sensitive Power
Residual O/V NVD: Disabled/Enabled
df/dt: Disabled/Enabled
V Vector Shift: Disabled/Enabled
Reconnect Delay: Disabled/Enabled
Volt Protection: Disabled/Enabled
Freq Protection: Disabled/Enabled
CB Fail: Disabled/Enabled
Supervision: Disabled/Enabled
Input Labels: Invisible/Visible
Output Labels: Invisible/Visible
CT & VT Ratios: Invisible/Visible
Event Recorder: Invisible/Visible
Disturb Recorder: Invisible/Visible
Measure’t Setup: Invisible/Visible
Comms Settings: Invisible/Visible
Commission Tests: Invisible/Visible
Setting Values: Primary/Secondary
Control Inputs: Invisible/Visible
CLIO Inputs: Disabled/Enabled
CLIO Outputs: Disabled/Enabled
Ctrl I/P Config: Invisible/Visible
Ctrl I/P Labels: Invisible/Visible
Direct Access: Disabled/Enabled
LCD Contrast: 0…31
CT and VT Ratios
Main VT Primary: 100...1000000V
Main VT Sec'y: 80...140
(100/120V) 320…560V (380/480V)
VN VT Primary (P342/3): 100…1000000V
VN VT Secondary (P342/3):80…140V
(100/120V) 320…560V (380/480V)
Phase CT Primary: 1A…30kA
Phase CT Sec'y: 1A/5A
SEF CT Primary: 1A…30KA
SEF CT Sec’y: 1A/5A
Sequence of Event Recorder
(Record Control)
Alarm Event: Disabled/Enabled
Relay O/P Event: Disabled/Enabled
Opto Input Event: Disabled/Enabled
General Event: Disabled/Enabled
Fault Rec Event: Disabled/Enabled
Maint Rec Event: Disabled/Enabled
Protection Event: Disabled/Enabled
DDB 31 - 0: (up to):
DDB 1022 - 992:
Binary function link strings, selecting which
DDB signals will be stored as events, and
which will be filtered out.
Oscillography
(Disturbance Recorder)
Duration: 0.10…10.50s
Trigger Position: 0.0…100.0%
Trigger Mode: Single/Extended
Analog Channel 1: (up to):
Analog Channel 8:
Disturbance channels selected from:
IA/IB/IC/VA/VB/VC/VN/ISensitive/Frequency
Digital Input 1: (up to):
Digital Input 32:
Selected binary channel assignment from any
DDB status point within the relay (opto input,
output contact, alarms, starts, trips, controls,
logic…).

P341/EN AD/F43 Update Documentation
(AD) -16 MiCOM P341
Input 1 Trigger: No Trigger/Trigger/LH (Low to
High)/Trigger H/L (High to Low)
(up to):
Input 32 Trigger: No Trigger/Trigger
L/H/Trigger H/L
Measured Operating Data
(Measure’t Setup)
Default Display:
Access Level
3Ph + N Current
3Ph Voltage
Power
Date and Time
Description
Plant Reference
Frequency
Local Values: Primary/Secondary
Remote Values: Primary/Secondary
Measurement Ref: VA/VB/VC/IA/IB/IC
Measurement Mode: 0/1/2/3
Fix Dem Period: 1…99mins
Roll Sub Period: 1…99mins
Num Sub Periods: 1…15
Remote2 Values: Primary/Secondary
Communications
RP1 Address: (Courier or IEC870-5-103):
0…255
RP1 Address: (DNP3.0):
0…65534
RP1 Address: (MODBUS):
1…247
RP1 InactivTimer: 1…30mins
RP1 Baud Rate: (IEC870-5-103):
9600/19200 bits/s
RP1 Baud Rate: (MODBUS, Courier):
9600/19200/38400 bits/s
RP1 Baud Rate: (DNP3.0):
1200/2400/4800/9600/19200/38400 bits/s
RP1 Parity: Odd/Even/None
(MODBUS, DNP3.0)
RP1 Meas Period: 1…60s
(IEC870-5-103)
RP1 PhysicalLink:
Copper (EIA(RS)485/K bus) or Fiber Optic
RP1 Time Sync: Disabled/Enabled
MODBUS IEC Timer: Standard/Reverse
RP1 CS103Blocking:
Disabled
Monitor Blocking
Command Blocking
RP1 Port Config: (Courier):
K Bus
EIA485 (RS485)
RP1 Comms Mode: (Courier):
IEC60870 FT1.2
IEC60870 10-Bit No parity
Note: If RP1 Port Config is K Bus the baud
rate is fixed at 64 kbits/s
Optional Ethernet Port
NIC Tunl Timeout: 1...30mins
NIC Link Report: Alarm, Event, None
NIC Link Timeout: 0.1...60s
Optional Additional Second Rear
Communication
(Rear Port2 (RP2))
RP2 Port Config:
EIA(RS)232
EIA(RS)485
K-Bus
RP2 Comms Mode:
IEC60870 FT1.2
IEC60870 10-Bit No parity
RP2 Address: 0…255
RP2 InactivTimer:1…30mins
RP2 Baud Rate:
9600/19200/38400 bits/s
Note: If RP2 Port Config is K Bus the baud
rate is fixed at 64 kbits/s
Commission Tests
Monitor Bit 1:
(up to):
Monitor Bit 8:
Binary function link strings, selecting which
DDB signals have their status visible in the
Commissioning menu, for test purposes
Test Mode:
Disabled
Test Mode
Blocked Contacts
Test Pattern:
Configuration of which output contacts are to
be energized when the contact test is
applied
Circuit Breaker Condition
Monitoring
(CB Monitor Setup)
Broken I^: 1.0…2.0
I^ Maintenance: Alarm Disabled/Enabled
I^ Maintenance: 1…25000
I^ Lockout: Alarm Disabled/Enabled
I^ Lockout: 1…25000
No. CB Ops Maint:Alarm Disabled/Enabled
No. CB Ops Maint:1…10000
No. CB Ops Lock: Alarm Disabled/Enabled
No. CB Ops Lock: 1…10000
CB Time Maint: Alarm Disabled/Enabled
CB Time Maint: 0.005…0.500s
CB Time Lockout: Alarm Disabled/Enabled
CB Time Lockout: 0.005…0.500s
Fault Freq Lock: Alarm Disabled/Enabled
Fault Freq Count: 1…9999
Fault Freq Time: 0…9999s