Areva MiCOM P341 Quick start guide

MiCOM P341
Interconnection Protection Relay
Software Version 0050B
Technical Guide

Technical Guide
MiCOM P341
Interconnection Protection Relay
Volume 1

Issue Control P341/EN T/C22
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
-- -
Front Cover
Software version details removed from back of front cover
-- -
Contents
Reference to P14x brochure, removed from Application
Notes heading
-Throughout
Handling of electronic equipment
Company name changed
IT Throughout
Introduction
Company name changed
IT 1. 3
Introduction to MiCOM
Last line of section : website address changed
4
Introduction to MiCOM guides
Reference to P14x brochure, removed from Application
Notes summary
IT 2. 5
Reference to P14x brochure, removed from Installation
summary
-2. -
Safety Section : Installing, commissioning and
servicing
Before energising the equipment, the following should be
checked: 2 new points added at the end of the list
-6. -
Safety Section : Technical specifications
Insulation category : in 1st sentence installation amended
to insulation
Product safety : law voltage directive amended to low
voltage directive
IT Throughout
Section brought into line with corporate standard.
All references to chapters have been replaced with new
subdocument references
Company name amended
AP Throughout
Application Notes
Company name changed
AP Throughout
All references to chapters replaced with new subdocument
references
AP - -
Publication
Latest version (P341/EN BR Cd)
AP 1.2.1 10
Protection features
11th bullet point added
AP 1.2.2 10
Non-protection features
4th bullet point : 2nd sentence amended
AP 2.1 12
Configuration column
In the menu text column between Power and Overcurrent :
Thermal overload has been added

P341/EN T/C22 Issue Control
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
AP 2.2 13
CT and VT ratios
Data in table amended
AP 2.4 16
Rate of change of frequency protection
DDB information in sentences 1 and 2 : amended
17
Voltage vector shift protection
3rd equation : amended
AP 2.5
18
18
Figure 2c : title amended
Paragraph 3 : DDB information in 1st sentence amended
AP 2.6 20
Reconnection timer
Paragraph 3 : DDB information in 1st sentence amended
20
Power protection
Paragraph 4 : DDB information in 1st sentence amended
AP 2.7 21 Data in table amended
21
Sensitive power protection function
1st sentence amended
Paragraph 2 : %Pn changed from 2 to 7
22
Paragraph before table : DDB information in 1st sentence
amended
AP 2.7.1 22 - 23 Data in table amended
AP 2.7.4 25
Reverse power protection function
Table number changed from 2 to 1
1st paragraph after Table 1 : sentences 3 and 4 amended
26
Overcurrent protection
Paragraph 6 : DDB information in sentences 1 and 3
amended
AP 2.8 28 After table : paragraphs 2 and 3 added
34
Standard earth fault protection element
Paragraph 3 : DDB information in sentences 1 and 3
amended
AP 2.10.1 35 Data in table amended
36
Sensitive earth fault protection element (SEF)
Paragraph 2 : DDB information in sentences 1 and 3
amended
AP 2.10.2 37 Data in table amended
AP 2.11.2 39
Negative sequence polarisation
Paragraph 3 : added
AP 2.11.3 40
General setting guidelines for DEF
Paragraph 2 : amended
Last 2 angle settings added
AP 2.12 49
Operation of sensitive earth fault element
Ιtem 3 of list : added
Paragraph 2 : 1st sentence amended

Issue Control P341/EN T/C22
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
AP 2.13.1 51
Calculation of required relay settings
Paragraph 3 : last sentence amended
AP 2.14 52
Restricted earth fault protection
Paragraph 5 : DDB information in 1st sentence amended
AP 2.14.1 53
High impedance restricted earth fault protection
Figure 13 : where k = 0.5 changed to where k = 1
AP 2.14.2
55
57
Setting guidelines for high impedance REF
1st equation on page amended
Sections last list changed from numbers 4 and 5 to
numbers 1 and 2
AP 2.15 60
Residual over voltage/neutral voltage
displacement protection
DDB information in paragraph before table amended
Data in table amended
61
Under voltage protection
Paragraph 4 : DDB information amended
Note added after 4th paragraph
AP 2.16 62 Data in table amended
63
Over voltage protection
Paragraph 4 : DDB information amended
AP 2.17
64
64
Note added after 4th paragraph
Data in table amended
AP 2.18 66
Under frequency protection
DDB information in 1st two sentences of paragraph before
table amended
AP 2.19 68
Over frequency protection function
DDB information in 1st two sentences of paragraph before
table amended
AP 2.20 69 - 73
Thermal overload protection
New section added
AP 2.21.2 75
Reset mechanisms for breaker fail timers
Data in 2nd table amended
Paragraph after 2nd table : 1st sentence amended and 3rd
sentence added
AP 2.22.1 76
Breaker fail timer settings
Data in table amended
Paragraph 2 : 1st sentence amended
AP 2.22.2 77
Breaker fail undercurrent settings
Figure 17 : CB fail logic diagram added
AP 4.1 79
Voltage transformer supervision (VTS)
Minor amendment in last paragraph

P341/EN T/C22 Issue Control
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
AP 4.1.1 79
Loss of all three phase voltages under load
conditions
Minor amendments in paragraph 2
AP 4.1.2 80 - 81
Absence of three phase voltages upon line
energisation
Sentence and bullet points added after figure 19
AP 4.1.2.1 81
Inputs
New section added
AP 4.1.2.2 82
Outputs
New section added
AP 4.1.3 82
Menu settings
Bullet points after table amended
1st two paragraphs after bullet points added
AP 4.2.1 83
The CT supervision feature
Paragraph 1 : amended
Paragraph 2 : added
Paragraph 3 : sentence 1 amended and sentence 3 added
Paragraph 4 : amended
Figure 20 : amended
AP 4.3.1
84
85
86
Circuit breaker state monitoring features
1st sentence added to paragraph after 2nd group of bullet
points
Last sentence added to paragraph before table
Figure 21 : added
AP 4.4 86
Circuit breaker control
Section deleted
AP 4.5 86 - 87
Pole dead logic
New section added
AP 4.6 87 - 90
Circuit breaker condition monitoring
New section added
AP 4.8 92 - 96
Trip circuit supervision (TCS)
New section added
AP 4.9.1.3 98
Relay alarm conditions
Table : replaced
AP 4.9.1.6 99
Fault records
Paragraph 4 : added
AP 4.9.4 101
Event filtering
Minor amendments made to 2nd paragraph after table
AP 4.10 102
Disturbance recorder
Paragraph 1 : re-written
Paragraph 3 : last sentence added

Issue Control P341/EN T/C22
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
AP 4.13 106
Control inputs
New section added
AP 4.14 107
CT connections
New section added
AP 4.15 107 - 108
Auto reset of trip LED indication
New section added
AP 5.5.4 109
Directional instantaneous SEF protection
(residually connected)
Only 1st equation remains, rest of section deleted
AP 5.6 110
High impedance restricted earth fault protection
1st equation : amended
AP 5.7.2 111
Metering class current transformers
Table : replaced
AP 5.9 112
Converting IEC185 current transformer standard
protection classification to an ANSI/IEEE standard
voltage rating
New section added
AP 6. 112 - 115
Commissioning test menu
New section added
HW Throughout All references to chapters replaced with new subdocument
references
HW 1.1.3 3
Power supply module
RS485 reference changed to EIA(RS)485
HW 2.3.2 7
Input board
Figure 2 : amended
Last 2 paragraphs deleted
HW 2.3.3 7 - 8
Universal opto isolated logic inputs
New section added
HW 2.4.1
8
9
Power supply board (including EIA(RS)485
communication interface
Heading : amended
2nd paragraph after table : all RS485 reference changed to
EIA(RS)485
HW 2.4.2 9
Output relay board
Section re-written
HW 2.5 9
IRIG-B board
Paragraph 2 : RS485 reference changed to EIA(RS)485
HW 3.4.3.1 13
PSL data
New section added
HW 4.2 16
Continuous self-testing
4th bullet point amended

P341/EN T/C22 Issue Control
MiCOM P341
Manual Issue D Amendments completed 09.12.2004
Doc
Ref. Section Page Description
TD Throughout All references to chapters replaced with new subdocument
references
TD 1.5 8
‘Universal’ logic inputs (P340 range)
Section re-written
TD 1.6 8 - 9
Output relay contacts
Section re-written
TD 2.3 10
Auxiliary supply
2nd table : replaced
TD 2.4 10
Optically-isolated inputs
Paragraph 1 : deleted
TD 10.9 32
Reverse power/low forward power/over power
(32R / 32L / 32O)
Data in table amended
TD 10.14 35
Thermal overload (49)
New section added
TD 10.2.2 22
Accuracy
DT operation setting amended to ±2% or 50ms whichever
is greater
TD 13.2.2 37
Performance
Data in table amended
TD 15.2.4 39
Undercurrent accuracy
Data in table amended
TD 19. 41
Local and remote communications
New section added
CT Throughout
SCADA Communications
Company name changed
CT Throughout
Section brought into line with corporate standard.
All references to chapters replaced with new subdocument
references
GC - -
Relay menu database
Amended to reflect latest relay software
CO - -
External connection diagrams
New diagrams
VC - -
Hardware/software version history and
compatibility
Amended to reflect latest relay software

Technical Guide P341/EN T/D22
MiCOM P341
INTERCONNECTION PROTECTION RELAY
MiCOM P341
CONTENT
Issue Control
Handling of Electronic Equipment
Safety Instructions
Introduction P341/EN IT/D22
Application Notes P341/EN AP/D22
Relay Description P341/EN HW/D22
Technical Data P341/EN TD/D22
SCADA Communications P341/EN CT/D22
Relay Menu Database P341/EN GC/D22
External Connection Diagrams P341/EN CO/D22
Hardware / Software Version History and
Compatibility P341/EN VC/C22

P341/EN T/D22 Technical Guide
MiCOM P341

HANDLING OF ELECTRONIC EQUIPMENT
A person’s normal movements can easily generate electrostatic potentials of several
thousand volts. Discharge of these voltages into semiconductor devices when
handling circuits can cause serious damage, which often may not be immediately
apparent but the reliability of the circuit will have been reduced.
The electronic circuits of AREVA T&D products are immune to the relevant levels of
electrostatic discharge when housed in their cases. Do not expose them to the risk of
damage by withdrawing modules unnecessarily.
Each module incorporates the highest practicable protection for its semiconductor
devices. However, if it becomes necessary to withdraw a module, the following
precautions should be taken to preserve the high reliability and long life for which the
equipment has been designed and manufactured.
1. Before removing a module, ensure that you are a same electrostatic potential
as the equipment by touching the case.
2. Handle the module by its front-plate, frame, or edges of the printed circuit
board. Avoid touching the electronic components, printed circuit track or
connectors.
3. Do not pass the module to any person without first ensuring that you are both
at the same electrostatic potential. Shaking hands achieves equipotential.
4. Place the module on an antistatic surface, or on a conducting surface which is
at the same potential as yourself.
5. Store or transport the module in a conductive bag.
More information on safe working procedures for all electronic equipment can be
found in BS5783 and IEC 60147-0F.
If you are making measurements on the internal electronic circuitry of an equipment
in service, it is preferable that you are earthed to the case with a conductive wrist
strap.
Wrist straps should have a resistance to ground between 500k – 10M ohms. If a
wrist strap is not available you should maintain regular contact with the case to
prevent the build up of static. Instrumentation which may be used for making
measurements should be earthed to the case whenever possible.
AREVA T&D strongly recommends that detailed investigations on the electronic
circuitry, or modification work, should be carried out in a Special Handling Area such
as described in BS5783 or IEC 60147-0F.

CONTENT
1. SAFETY SECTION 3
1.1 Health and Safety 3
1.2 Explanation of symbols and labels 3
2. INSTALLING, COMMISSIONING AND SERVICING 3
3. EQUIPMENT OPERATING CONDITIONS 4
3.1 Current transformer circuits 4
3.2 External resistors 4
3.3 Battery Replacement 4
3.4 Insulation and dielectric strength testing 4
3.5 Insertion of modules and pcb cards 4
3.6 Fibre optic communication 4
4. OLDER PRODUCTS 5
5. DECOMMISSIONING AND DISPOSAL 5
6. TECHNICAL SPECIFICATIONS 6

1. SAFETY SECTION
This Safety Section should be read before commencing any work on the
equipment.
1.1 Health and Safety
The information in the Safety Section of the product documentation is intended to
ensure that products are properly installed and handled in order to maintain them in
a safe condition. It is assumed that everyone who will be associated with the
equipment will be familiar with the contents of the Safety Section.
1.2 Explanation of symbols and labels
The meaning of symbols and labels may be used on the equipment or in the product
documentation, is given below.
Caution : refer to product documentation Caution : risk of electric shock
Protective/safety *earth terminal Functional *earth terminal
Note: This symbol may also be
used for a protective/safety earth
terminal if that terminal is part of a
terminal block or sub-assembly
e.g. power supply.
*NOTE: THE TERM EARTH USED THROUGHOUT THE PRODUCT DOCUMENTATION IS THE
DIRECT EQUIVALENT OF THE NORTH AMERICAN TERM GROUND.
2. INSTALLING, COMMISSIONING AND SERVICING
Equipment connections
Personnel undertaking installation, commissioning or servicing work on this
equipment should be aware of the correct working procedures to ensure safety. The
product documentation should be consulted before installing, commissioning or
servicing the equipment.
Terminals exposed during installation, commissioning and maintenance may present
a hazardous voltage unless the equipment is electrically isolated.
If there is unlocked access to the rear of the equipment, care should be taken by all
personnel to avoid electrical shock or energy hazards.

Voltage and current connections should be made using insulated crimp terminations
to ensure that terminal block insulation requirements are maintained for safety. To
ensure that wires are correctly terminated, the correct crimp terminal and tool for the
wire size should be used.
Before energising the equipment it must be earthed using the protective earth
terminal, or the appropriate termination of the supply plug in the case of plug
connected equipment. Omitting or disconnecting the equipment earth may cause a
safety hazard.
The recommended minimum earth wire size is 2.5mm2, unless otherwise stated in the
technical data section of the product documentation.
Before energising the equipment, the following should be checked:
−Voltage rating and polarity;
−CT circuit rating and integrity of connections;
−Protective fuse rating;
−Integrity of earth connection (where applicable)
3. EQUIPMENT OPERATING CONDITIONS
The equipment should be operated within the specified electrical and environmental
limits.
3.1 Current transformer circuits
Do not open the secondary circuit of a live CT since the high level voltage produced
may be lethal to personnel and could damage insulation.
3.2 External resistors
Where external resistors are fitted to relays, these may present a risk of electric shock
or burns, if touched.
3.3 Battery Replacement
Where internal batteries are fitted they should be replaced with the recommended
type and be installed with the correct polarity, to avoid possible damage to the
equipment.
3.4 Insulation and dielectric strength testing
Insulation testing may leave capacitors charged up to a hazardous voltage. At the
end of each part of the test, the voltage should be gradually reduced to zero, to
discharge capacitors, before the test leads are disconnected.
3.5 Insertion of modules and pcb cards
These must not be inserted into or withdrawn from equipment whist it is energised
since this may result in damage.
3.6 Fibre optic communication
Where fibre optic communication devices are fitted, these should not be viewed
directly. Optical power meters should be used to determine the operation or signal
level of the device.

4. OLDER PRODUCTS
Electrical adjustments
Equipments which require direct physical adjustments to their operating mechanism
to change current or voltage settings, should have the electrical power removed
before making the change, to avoid any risk of electrical shock.
Mechanical adjustments
The electrical power to the relay contacts should be removed before checking any
mechanical settings, to avoid any risk of electric shock.
Draw out case relays
Removal of the cover on equipment incorporating electromechanical operating
elements, may expose hazardous live parts such as relay contacts.
Insertion and withdrawal of extender cards
When using an extender card, this should not be inserted or withdrawn from the
equipment whilst it is energised. This is to avoid possible shock or damage hazards.
Hazardous live voltages may be accessible on the extender card.
Insertion and withdrawal of heavy current test plugs
When using a heavy current test plug, CT shorting links must be in place before
insertion or removal, to avoid potentially lethal voltages.
5. DECOMMISSIONING AND DISPOSAL
Decommissioning: The auxiliary supply circuit in the relay may include capacitors
across the supply or to earth. To avoid electric shock or energy
hazards, after completely isolating the supplies to the relay (both
poles of any dc supply), the capacitors should be safely
discharged via the external terminals prior to decommissioning.
Disposal: It is recommended that incineration and disposal to water
courses is avoided. The product should be disposed of in a safe
manner. Any products containing batteries should have them
removed before disposal, taking precautions to avoid short
circuits. Particular regulations within the country of operation,
may apply to the disposal of lithium batteries.

6. TECHNICAL SPECIFICATIONS
Protective fuse rating
The recommended maximum rating of the external protective fuse for this equipment
is 16A, Red Spot type of equipment, unless otherwise stated in the technical data
section of the product documentation.
Insulation class: IEC 601010-1 : 1990/A2 : 1995
Class I
EN 61010-1 : 1993/A2 : 1995
Class I
This equipment requires a
protective (safety) earth
connection to ensure user
safety.
Insulation
Category
(Overvoltage):
IEC 601010-1 : 1990/A2 : 1995
Category III
EN 61010-1 : 1993/A2 : 1995
Category III
Distribution level, fixed
installation. Equipment in this
category is qualification tested
at 5kV peak, 1.2/50µs,
500Ω, 0.5J, between all supply
circuits and earth and also
between independent circuits.
Environment: IEC 601010-1 : 1990/A2 : 1995
Pollution degree 2
EN 61010-1 : 1993/A2 : 1995
Pollution degree 2
Compliance is demonstrated
by reference to generic safety
standards.
Product Safety: 72/23/EEC
EN 61010-1 : 1993/A2 : 1995
EN 60950 : 1992/A11 : 1997
Compliance with the European
Commission Law Voltage
Directive.
Compliance is demonstrated
by reference to generic safety
standards.