MiCOM P14x Series

Feeder Management
Relays

MiCOM P14x Series

Feeder Management Relays

T&D
Protection & Control
MiCOM P14x Series
Feeder Management Relays

Introduction • Current transformer supervision

The MiCOM Feeder Management • Neutral admittance
Relays provide flexible and reliable
integration of protection, control, Control
monitoring and measurement
functions. Extensive functionality is • Multi-shot autoreclose with check
able to provide complete protection synchronising and external
and control for a wide range of initiation
overhead lines and underground • Circuit breaker control
cables from distribution to
• Programmable scheme logic
transmission voltage levels.
• Programmable allocation of
Protection optically isolated inputs and relay Figure 1: MiCOM P141
outputs
• Directional/non-directional phase
• Multiple settings groups
overcurrent Diagnostics
• Control inputs
• Directional/non-directional earth
• Power-up diagnostics
fault
Measurements • Continuous self monitoring
• Sensitive directional/non-
directional earth fault • Comprehensive measurement • Test facilities
values
• Wattmetric earth fault
• Instantaneous User friendly interface
• I cos φ and I sin φ earth fault
• Integrated • Liquid crystal display with
• Restricted earth fault backlight
• Blocked overcurrent logic Post fault analysis • Programmable LED indications
• Selective overcurrent logic • Fault location • Password protection
• Cold load pick-up logic • Event and fault records • Optional secondary protective
• Voltage controlled overcurrent • Disturbance records cover
• Directional/non-directional • Fully programmable menu text
negative sequence overcurrent Monitoring
• RMS thermal overload
Software support
• Trip circuit supervision
• Under/overvoltage • Breaker state monitoring Available in conjunction with
MiCOM S1 support software:
• Residual overvoltage • Breaker condition monitoring
• Settings editor
• Negative sequence overvoltage
Communications • Programmable scheme logic
• Under/overfrequency
editor
• A choice of protocols,
• Broken conductor
IEC 60870, Courier, Modbus • Viewing of fault diagnostics and
• Circuit breaker failure and DNP3.0 measurements
• Voltage transformer supervision • Front and rear communication • Menu text editor
ports
• Silicon rectifier overload • Disturbance recorder viewer
protection

2
Models available
• P141 Feeder Management Relay
• P142 with autoreclose
• P143 with autoreclose and check
synchronising
P141
Application 51P 64N
M
51N 27
The MiCOM P14x series is suitable 67P 47
for all applications where 67N 50BF
overcurrent protection is required.
The integration of many functions Figure 2a: Typical parallel transformer application

provides complete protection for a

wide range of overhead lines and
underground cables, from
distribution to transmission voltage
levels. It is suitable for solid
P143
earthed, impedance earthed,
51P 50BF
Petersen coil earthed and isolated 51N BC
systems. 49 79
46 25
A comprehensive suite of
Figure 2b: Typical plain feeder application
overcurrent protection provides an
economic solution to complex ANSI Numbers 67 Directional
67/50P Instantaneous phase overcurrent 59 Overvoltage
protection applications. Figure 2a 67/51P Time delayed phase overcurrent 59N Residual overvoltage
shows a parallel transformer 67/37P Phase undercurrent 27 Undervoltage
67/50N Instantaneous neutral overcurrent 47 Negative sequence overvoltage
application where the MiCOM 67/51N Time delayed neutral overcurrent 50BF Breaker failure and backtrip
P141 replaces many of the discrete 37N Neutral undercurrent 25 Check synchronising
64N Restricted earth fault 67/46 Negative sequence overcurrent
protection elements normally 49 Thermal overload BC Broken conductor detection
associated with the LV side of the 79 Autoreclose VTS Voltage transformer supervision
67W Wattmetric CTS Current transformer supervision
transformer. The protection includes
non-directional and directional
phase overcurrent and earth fault
Figures 2a and 2b
independently configurable to be
either inverse definite minimum time
(IDMT) or definite time. Restricted
earth fault and circuit breaker
failure protection are also included. Protection functions relays, to reduce autoreclose dead
times and to reduce clearance times
Figure 2b shows a MiCOM P143 Three phase tripping with faulted
where intermittent faults occur.
protecting a plain feeder using phase indication is provided for all
phase overcurrent, sensitive earth protection functions. The phase fault directional elements
fault, negative sequence are internally polarised by
overcurrent, thermal protection and Phase overcurrent quadrature phase-phase voltages,
breaker failure protection. Four independent stages are and will make a correct directional
The integral autorecloser with check available for each phase decision down to:
synchronising may be configured to overcurrent element. Each stage
grade with downstream reclosers. 0.5V (Vn = 100 – 120V) or
may be selected as non-directional
A range of communication 2.0V (Vn = 380 – 480V).
or directional (forward/reverse).
protocols allows connection with All stages have definite time A synchronous polarising signal is
many external devices thus delayed characteristics, two of the maintained for 3.2s after voltage
providing remote programming, stages may also be independently collapse to ensure that the
control and extraction of set to one of ten IDMT curves instantaneous and time delayed
information. (IEC and IEEE). The IDMT stages overcurrent elements operate
have a programmable reset timer correctly for close-up three phase
for grading with electromechanical faults.

3
Standard earth fault Neutral admittance protection Negative sequence
There are two standard earth fault Neutral admittance protection is overcurrent
elements, each with four provided for the Polish market for Negative sequence overcurrent
independent stages. earth fault protection. Three single protection can be set as either non-
stage elements are provided for directional or directional
• The first element operates from non-directional overadmittance, (forward/reverse), and can operate
measured quantities: non-directional/directional for remote phase-phase and phase-
• earth fault current which is overconductance and earth faults even with delta-star
directly measured using a non-directional/directional transformers present.
separate CT oversusceptance.
RMS thermal overload
• residual connection of the Restricted earth fault Thermal characteristics suitable for
three line CTs
The restricted earth fault protection cables and transformers are
• The second standard earth fault may be configured as either high available providing both alarm and
element operates from a residual impedance or low impedance trip stages. The thermal element may
current that is derived internally biased differential. be set with either a single time
from the summation of the three constant characteristic for the
phase currents. Blocked overcurrent logic protection of cables or dry
All earth fault elements have the Each stage of overcurrent and earth transformers, or a dual time constant
same directionality and IDMT fault protection can be blocked by characteristic to protect oil filled
characteristics as the phase an optically isolated input. transformers. In the event of loss of
overcurrent element. This enables overcurrent and earth auxiliary supply, the thermal state is
fault protection to integrate into a stored in non-volatile memory.
Both earth fault elements may be
blocked overcurrent busbar
enabled at the same time providing Under/overvoltage
protection scheme.
discriminative directional earth fault
Under/overvoltage protection may
protection and back-up standby
Selective overcurrent logic be configured to operate from
earth fault protection in the same
Selective overcurrent logic assists either phase-phase or phase-neutral
device. The directionality of the
with relay co-ordination by allowing quantities. Two independent stages
earth fault elements is provided by
the time delay settings of the with definite time elements are
either residual voltage or negative
overcurrent elements to be available, one of the stages can
sequence voltage.
temporarily modified by also be configured to an inverse
Sensitive earth fault energisation of an optically isolated characteristic.
input. This is available using
A core balance CT should be used Neutral
programmable scheme logic.
to drive the sensitive earth fault displacement/residual
function. The directionality of the overvoltage
Cold load pick-up logic
sensitive earth fault elements is
Cold load pick-up temporarily raises Residual overvoltage protection is
provided by the residual voltage.
the overcurrent settings following available for detecting earth faults
Wattmetric closure of the circuit breaker, in high impedance earthed or
allowing the protection settings to isolated systems. The neutral voltage
As an alternative to the directional
be set closer to the load profile. is derived from the three phase
wattmetric characteristic a
voltage inputs. Two independent
directional I cos (φ) characteristic
Voltage controlled measuring elements with definite
can be used for Petersen coil earth
overcurrent time characteristics are available,
fault protection using the sensitive
Voltage controlled overcurrent one of the elements can also be
earth fault input. This protection
provides back-up protection for configured to have an inverse
provides discrimination as faulted
remote phase faults whilst characteristic.
feeders will have a large
component of residual current whilst remaining insensitive to load
conditions. Negative sequence
healthy feeders will have a small overvoltage
value.
Negative sequence overvoltage
A directional I sin (φ) characteristic
protection provides either a tripping
is also available for protection of
or an interlocking function, upon
insulated feeders.
detection of unbalanced supply
voltages

4
Under/overfrequency Autoreclose with check the scheme logic signals and thus
synchronising avoid unnecessary signal
Two independent stages of
The P142 provides three pole multi- processing.
overfrequency and four of
underfrequency are provided. shot autoreclose. The user may The programmable scheme logic is
Each stage functions as a definite select a single, two, three or four configured using the graphical
time element. shot autoreclose cycle, with MiCOM S1 PC based support
independently settable dead times software, as illustrated in Figure 3.
Broken conductor and reclaim time. Autoreclose can
be initiated from the internal The required logic is drawn as
The broken conductor protection shown and is then downloaded
detects unbalanced conditions protection elements or from external
protection via an opto input. directly into the relay. The logic
caused by broken conductors, mal- may also be uploaded from the
operation of single phase switchgear More advanced features of the relay and then modified using
or by single phasing conditions. P143 include check synchronising, MiCOM S1 support software.
live line working and sequence
Supervisory functions co-ordination (co-ordination with Independent protection
downstream reclosing equipment). settings groups
Circuit breaker failure
The settings are divided into two
protection Programmable scheme logic
categories; protection settings, and
Two stage circuit breaker failure Programmable scheme logic allows control and support settings. Four
protection may be used for tripping the user to customise the protection setting groups are provided for the
upstream circuit breakers and and control functions. It is also used protection settings to allow for
retripping of the local circuit to programme the functionality of different operating conditions and
breaker if required. The circuit the optically isolated inputs, relay adaptive relaying. All settings are
breaker failure logic may also be outputs and LED indications. stored in E2PROM.
initiated externally from other
The programmable scheme logic
protection devices if required. Control inputs
comprises gate logic and general
purpose timers. The gate logic The control inputs allow the user to
Voltage transformer supervision
includes OR, AND and majority manualy change the status of DDB
Voltage transformer supervision is gate functions, with the ability to signals 800 to 831. These signals
provided to detect loss of one, two invert the inputs and outputs, and can be assigned to provide user
or three VT signals, providing provide feedback. The system is defined control functions.
indication and inhibition of voltage optimised to evaluate changes to
dependent protection elements.
An optically isolated input may also
be configured to initiate the voltage
transformer supervision alarm and
blocking when used with MCBs or
other external forms of voltage
transformer supervision.

Current transformer
supervision
Current transformer supervision is
provided to detect loss of phase CT
signals and inhibit the operation of
current dependent protection
elements.

Control
Circuit breaker control
Circuit breaker control is available
from the front panel user interface,
optically isolated inputs and
remotely via the substation
communications. Figure 3: Programmable scheme logic editor (MiCOM S1)

5
Measurement and Integrated values Disturbance records
recording facilities Wh VArh The internal disturbance recorder
has 8 analogue channels, 32
The P14x series is capable of Peak, average and rolling demand:
digital and 1 time channel. Data is
measuring and storing the values of sampled 12 times a cycle and
• Ia Ib Ic
a wide range of quantities. typically 20 disturbance records,
All events, fault and disturbance • W VAr
each of up to 10.5 seconds
records are time tagged to a The P143 provides an additional duration are stored in battery
resolution of 1ms using an internal voltage input for synchronisation backed memory. All channels and
real time clock. An optional IRIG-B and additional measurements: the trigger source are user
port is also provided for accurate configurable. Disturbance records
time synchronisation. • Check synchronising voltage
can be extracted from the relay via
A lithium battery provides a back- • Slip frequency the remote communications and
up for the real time clock and all saved in the COMTRADE format.
records in the event of supply Post fault analysis These records may be examined
failure. This battery is supervised using MiCOM S1 or any suitable
and easily replaced from the front Fault location software program.
of the relay. A fault location algorithm provides
distance to fault in miles, kilometres, Plant supervision
Measurements ohms or percentage of line length.
The measurements provided, which Trip circuit supervision
may be viewed in primary or Event records Supervision of the trip circuit in both
secondary values, can be accessed Up to 250 time-tagged event circuit breaker open and closed
by the back-lit liquid crystal display, records are stored in battery states can be realised using the
or the communications ports. Phase backed memory, and can be optically isolated inputs and
notation is user definable using the extracted using the communication programmable scheme logic.
MiCOM S1 text editor. ports or viewed on the front panel
display. Circuit breaker state
Instantaneous measurements monitoring
Phase voltages Van Vbn Vcn Fault records An alarm will be generated if there
Line voltages Vab Vbc Vca Records of the last 5 faults are is a discrepancy between the open
stored in battery backed memory. and closed auxiliary contacts of the
Neutral voltage Vn The information provided in the circuit breaker.
Phase current Ia Ib Ic fault record includes:
Circuit breaker condition
Neutral currents In ISEF • Indication of faulted phase monitoring
Sequence currents and voltages • Protection operation The circuit breaker condition
Ratio of I2/I1 • Active setting group monitoring features include:

Frequency • Date and time • monitoring the number of breaker

trip operations
Thermal state • Fault location
• recording the sum of the broken
Single and three phase power • Relay and CB operating time
current quantity ΣIx, 1.0≤ x ≤2.0
factor
• Currents, voltages and frequency
• monitoring the breaker operating
Active power Wa Wb Wc
time
Wtotal
• fault frequency counter
Reactive power VAra VArb VArc
VArtotal
Apparent power VAa VAb VAc
VAtotal
Phase currents and phase to neutral
voltages are available in true rms
and fundamental quantities.

6
Local and remote Local communications Hardware description
communications The front serial communications port
All models within the MiCOM P14x
has been designed for use with
Two communication ports are series include:
MiCOM S1, which fully supports
available; a rear port providing
functions within the relay by • A back-lit liquid crystal display
remote communications and a front
providing the ability to programme
port providing local • 12 LEDs
the settings off-line, configure the
communications. • An optional IRIG-B port
programmable scheme logic,
extract and view event, disturbance • An RS232 port
Remote communications
and fault records, view the
The remote communications are • An RS485 port
measurement information
based on RS485 voltage levels. dynamically and perform control • A download/monitor port
Any of the protocols listed below functions. PAS&T support software
can be chosen at the time of • A battery (supervised)
can also be used with the local
ordering. communications port. • N/O and N/C watchdog
contacts
Courier/K-Bus
Diagnostics • Supervised +48V field voltage
The Courier language is a protocol
which has been developed Automatic tests performed including • 1A/5A dual rated CTs
specifically for the purpose of power-on diagnostics and The hardware variations between
developing generic PC programmes continuous self-monitoring ensure a the MiCOM P14x series models
that will, without modification, high degree of reliability. The results are:
communicate with any device using of the self-test functions are stored in
the Courier language. battery backed memory. P141 P142 P143
Test features available on the user 100 - 120V or
Modbus 3 3 4
interface provide examination of 380 - 480V VTs
Modbus is a master/slave protocol, input quantities, states of the digital Optically
8 8 16
whereby the master must have inputs and relay outputs. A local isolated inputs
knowledge of the slave’s databases monitor port providing digital Relay outputs 3N/O 3N/O 6N/O
and addresses. The Modbus outputs, selected from a prescribed 4C/O 4C/O 8C/O
implementation supported by the list of signals, including the status of
MiCOM P14x series is RTU mode. protection elements, may be used in Expansion cards are available to
conjunction with test equipment. allow further inputs and outputs for
IEC 60870-5-103 These test signals can also be the P142 and P143 (see page 16).
The relay is compliant with the viewed using the Courier and N/O – normally open
transmission protocol defined by the Modbus communications ports and C/O – change over
specification IEC 60870-5-103. the front panel user interface.
The allocation of the optically
The standarised messages based on
isolated inputs, relay outputs and 8
the VDEW communication protocol
of the LEDs are preconfigured as a
are supported.
default, but may be programmed by
DNP 3.0 the user.
The optically isolated inputs are
The DNP 3.0 protocol is defined
independent and may be powered
and administered by the DNP User
from the +48V field voltage.
Group. The relay operates as a
The relay outputs may be
DNP 3.0 slave and supports subset
configured as latching or self reset.
level 2 of the protocol plus some of
All CT connections have integral
the features from level 3.
shorting.
A system overview of the MiCOM
P143 is shown in Figure 4.

7
 C23 J11
Relay failed

N
C

c
V synch J12
Watchdog
P143

b
check J13
C24 Relay healthy

a
J14
+ J7
C1 5A 48V field voltage
J9
IA C2
kA, kV, Hz
C3 50P 50N 51P 1 4 0 0 kW, kVA, kVArs + J8
1A 48V field voltage
kWh, kVArh J10
C4 5A
Sequence components + J2
IB C5 51N 64 37P Measurements Thermal state Auxiliary voltage
C6
1A J1
See note 2 C7 5A 37N 46 49 IN > 1 Start ON
IC C8 250 See note 4
00:12:00 01/01/99
C9
Event
Trip A B C ON IRIG-B
1A 79 50BF records
C10 5A 00:12:01 01/01/99
IN C11 RS232 MiCOM S1
C12
BC CTS
J17
1A
20 RS485 Courier
C13 5A J18
IN Disturbance Modbus
Sensitive C14 IEC60870-5-103
C15
records LEDs
1A

59 67 67W
See note 1 User programmable
See note 3 5 Fault A-B-C 15ms
C19 47 27 VTS Fault Ia = 1000 A
reports Ib = 1000 A
VA 81U 81O Ic = 1000 A
51V
C20 H1
RL1
H2
In>/ISEF> start
VB 1 RL2
H3
I> start
C21 & 1 & H4
H5
RL3 Protection trip
Programmable scheme logic H6
N
C

VC H7
B

C22
RL4
H8 General alarm
H9 User
A

No. trips = 100 H10 programmable

Breaker SUM I2 = 1000 kA H11 CB fail timer 1
RL5
monitoring CB opt time = 100 ms H12

52
H13
RL6
H14 Control CB close
H15

D2 H16
Setting group RL7 H17 Control CB trip
D1 H18
D4
Setting group
D3
D6
Block In1>3&4 D5
D8
Block I>3&4
D7
D10
Reset LEDs
D9
D12
G1
External trip RL8 Any start
D11 G2
D14 G3
52A RL9 A/R successful
D13 G4
D16 G5
52B RL10
G6
Non auto mode
D15
G7
F2 RL11 G8 A/R in progress User
Select auto mode G9
programmable
F1
G10
F4
G11 A/R prot. lockout See note 2
Select telecontrol mode RL12
F3 G12
F6 G13
Select live line mode G14 A/R in service
F5 RL13
G15
F8
CB healthy G16
F7 G17 Live line mode
F10 RL14 G18
Block A/R
F9
F12
Reset lockout F11
F14
User F13
programmable F16
See note 2 F15

ANSI Numbers

67/50P Instantaneous phase overcurrent 79 Autoreclose 81O Overfrequency

67/51P Time delayed phase overcurrent 67W Wattmetric 47 Negative sequence overvoltage
37P Phase undercurrent 51V Voltage controlled overcurrent 50BF Breaker failure and backtrip
67/50N Instantaneous neutral overcurrent 67 Directional 25 Check synchronising
67/51N Time delayed neutral overcurrent 59 Overvoltage 67/46 Negative sequence overcurrent
37N Neutral undercurrent 59N Residual overvoltage BC Broken conductor detection
64 Restricted earth fault 27 Undervoltage VTS Voltage transformer supervision
49 Thermal overload 81U Underfrequency CTS Current transformer supervision

Note 1: All CT connectors have integral shorting. These contacts are made before the internal CT circuits are disconnected.
Note 2: Additional hardware for P143 only.
Note 3: 5A CT connections shown, 1A CT connections available on the terminal blocks.
Note 4: The bridge rectifier is not present on the 24 – 48V dc version.

Figure 4: MiCOM P143 system overview

(Not intended for wiring purposes, refer to external connection diagram 10 P143 01 for connection details)

8
 1

4
2

8
7

Figure 5: User interface

User interface
The front panel user interface (6) An upper cover identifying the The user interface and menu text
comprises: product name. The cover may are available in English, French,
be raised to provide access to German and Spanish as standard.
(1) A 2 x 16 character back-lit the product model number, Labels supplied with the device
liquid crystal display. serial number and ratings. allow customised descriptions of the
(2) Four fixed function LEDs. LEDs. A user selectable default
(7) A lower cover concealing the
display provides measurement
(3) Eight user programmable front RS232 port,
information, time/date, protection
LEDs. download/monitor port and
functions and plant reference
battery compartment. The
(4) Menu navigation and data information. The ability to customise
front of the cover can display
entry keys. the menu text and alarm
the name of the product, or
descriptions is also supported.
(5) “READ” and “CLEAR” any user defined name.
keys for viewing and (8) Facility for fitting a security
acknowledging alarms. lead seal.
Password protection
Password protection may be
independently applied to the
front user interface, front
communications port and rear
communications port. Two levels
of password protection are
available providing access to
the controls and settings
respectively.

9
Protection setting ranges
IEC/UK curves IEEE/US curves

Phase fault TMS = 1 TD = 7

IDMT/definite time 1000 100

stages 0.08 to 4.0In

Definite time stages 0.08 to 32In
100
Definite time 0 to 100s

Operating
10

time (s)
Standard earth fault

Operating
time (s)
IDMT/definite time 10

stages 0.08 to 4.0In UK LTI

Definite time stages 0.08 to 32In IEC SI 1
IEEE MI
Definite time 0 to 200s 1
IEEE VI
RECT
IEC VI US CO2
Sensitive earth fault
(SEF/I cos φ/I sin φ) IEC EI US CO8
IEEE EI
0.1 0.1
IDMT/definite time 1 10 100 1 10 100
Current (Multiples of Is) Current (Multiples of Is)
stages 0.005 to 0.1In
Definite time stages 0.005 to 2.0In TMS 0.025 to 1.2 TD 0.5 to 15

Definite time 0 to 200s 0.14

IEC Standard inverse t = TMS x IEEE Moderately inverse
0.02

Residual polarising voltage ( ) -1

I
Is t=
TD
x
0.0515
0.02
+ 0.114

setting Vop> for directional

7
( ) -1
I
Is

earth fault protection IEC Very inverse t = TMS x

13.5
IEEE Very inverse

0.5 to 80V (100 – 120V) ( ) -1

I
Is t=
TD
x
19.61
2
+ 0.491
7
( ) -1
I
Is
2 to 320V (380 – 440V)
80
IEC Extremely inverse t = TMS x IEEE Extremely inverse
2
Wattmetric characteristic ( )-1I
Is t=
TD
x
28.2
2 + 0.1217

Power threshold (1A)

7
( ) -1
I
Is

120
0 to 20W (100 – 120V) UK Long time inverse t = TMS x US CO8 Inverse

0 to 80W (380 – 480V)

( )-1I
Is
t=
TD
x
5.95
2 + 0.18
7
( ) -1
I
Is

Power threshold (5A) Rectifier Curve t = TMS x

45900
US CO2 Short time
5.6
inverse
0 to 100W (100 – 120V) ( ) -1
I
Is t=
TD
x
0.02394
0.02 + 0.01694
7
( ) -1
I
Is
0 to 400W (380 – 480V)
The IEC and IEEE/ANSI IDMT
curves for the above protection
Figure 6: IEC and IEEE/ANSI IDMT curves
settings are shown in Figure 6.

IDG characteristics Restricted earth fault

I DIFF
Operate
K1 0% to 20%
K2 K2 0% to 150%
I s1 0.08 to 1.0I n
Restrain I s2 0.10 to 1.5I n
K1
I s1
I s2 I BIAS

10
Undercurrent Thermal trip current setting Autoreclose and check
0.08 to 3.2In synchronising (where
Phase and neutral
appropriate
0.02 to 3.2In Undervoltage
Main shots 1 to 4
ISEF 0.001 to 0.8In Voltage settings, Vs
Dead times (1, 2) 0.01 to 300s
Voltage controlled 10 to 120V (100 – 120V)
Dead times (3, 4) 0.01 to 9999s
overcurrent 40 to 480V (380 – 480V)
Check
Voltage control threshold Time settings
synchronising 5° to 90°
20 to 120V (100 – 120V) Definite time 0 to 100s Slip frequency 0.02 to 1.00Hz
80 to 480V (380 – 480V)
IDMT t = TMS/(1 – V/Vs)
Overcurrent sensitivity factor Neutral admittance
TMS 0.5 to 100
0.25 to 1.0 Voltage threshold Vn
Overvoltage
Negative sequence 1 to 40V (100 – 120V)
Voltage settings, Vs
overcurrent 4 to 160V (380 – 480V)
Threshold 0.08 to 4.0In 60 to 185V (100 – 120V) Correction angle
Definite time 0 to 100s 240 to 680V (380 – 480V)
–30° to +30°
Time settings
Thermal overload Overadmittance settings
Thermal alarm 50% to 100% Definite time 0 to 100s YN>/Overconductance settings
GN>/Oversusceptance settings
IDMT t = TMS/(V/Vs – 1)
Single time constant BN>
characteristic TMS 0.5 to 100
25µs to 2.5ms (SEF input)
2 2 Residual overvoltage
(I – kI FLC) 250µs to 25ms (EF input)
t = -τ loge I2 – I 2 Voltage settings, Vs
P Time settings (definite time)
1 to 80V (100 – 120V)
Where: Operating time 0.05 to 100s
4 to 320V (380 – 480V)
t= time to trip, following Reset time 0 to 100s
Time settings
application of the
Accuracy/operating times
overload current, I Definite time 0 to 100s (typically)
τ= plant heating and cooling IDMT t = TMS/(V/Vs – 1) Phase and earth fault ±5% or 50ms
time constant (1 to 200
minutes) TMS 0.5 to 100 Wattmetric ±5% or 40ms
I= largest phase current Negative sequence Restricted earth fault ±5% or 45ms
overvoltage
IFLC = thermal trip setting Negative sequence
Voltage settings, Vs overcurrent ±2% or 60ms
k= 1.05 constant
1 to 110V (100 – 120V) Undervoltage ±2% or 50ms
IP = Steady state pre-load
current 4 to 440V (380 – 480V) Overvoltage ±2% or 50ms
Time settings
Dual time constant Measurements
characteristic Definite time 0 to 100s Voltage and amperes <1%
–t –t
0.4 e τ1 + 0.6 eτ2 Under/overfrequency 0.2 – 3.0In ±0.5%
I2 – (k.IFLC)2 Frequency settings 45 to 65Hz 0.2 – 2.0In ±0.5%
=
I2 – IP2 Definite time 0 to 100s Derived value <2%
Where:
Broken conductor
τ1, τ2 = plant heating and
I2/I1 0.2 to 1.0
cooling time constants
(1 to 200 minutes) Definite time 0 to 100s

11
Technical data Thermal withstand • Watchdog contact ratings

Ratings • AC current inputs dc 30W resistive

4.0In continuous
dc 15W inductive
Inputs: 30In for 10s
(L/R = 40ms)
100In for 1s
• AC current (In)
ac 375VA inductive
1A/5A dual rated ac rms • AC voltage inputs
(P.F. = 0.7)
• AC voltage (Vn) 2 Vn continuous
2.6 Vn for10s • Durability:
100 – 120V or 380 – 480V rms
nominal phase-phase Loaded contact
Current transformer
Rated frequency 50/60Hz requirements 10,000 operations minimum
Operative range 45Hz to 65Hz The following CT requirements are Unloaded contact
Auxiliary voltage (Vx) based on a maximum prospective 100,000 operations minimum
fault current of 50In and the relay
Rear communications port
having a maximum high set setting
Nominal Operative range • Connection
(V) (V) of 25In. The CT requirements are
designed to provide operation of: Multidrop (32 units)
dc dc ac
• Phase and standard earth fault • Cable type
24 - 48 19 - 65 -
elements
48 - 110 37 - 150 24 - 110 Screened twisted pair
1A rated currrent circuits
110 - 250 87 - 300 80 - 265 2.5VA 10P 20 • Cable length 1000m max
5A rated current circuits • Connector Screw terminals
Additional input/output cards are 7.5VA 10P 20
available for the P142 and P143 • Signal levels RS485
(see page 16). Digital inputs • Isolation SELV
Optically isolated inputs may be • Remote access
Outputs:
energised from the supervised 48V
Protocols supported
• Field voltage supply field voltage provided or an
48V dc (current limit: 112mA) external battery. The operating • Courier
Burdens voltage is menu selectable • Modbus
(24/27V, 30/34V, 48/54V,
• Auxiliairy voltage • IEC 60870-5-103
110/125V and 220/225V)
Size 8 (40 TE), min 11W or 24VA • DNP 3.0
Size 16 (60 TE), same Operating voltage >19.2V dc Note: An interface to an optical
Minimum is with no optos and no Max. input voltage 300V dc fibre, type 850nm, BFOC 2.5
relays energized. connector is available for
AC immunity 300V rms IEC 60870-5-103.
Each additional opto input
0.09W (24/27V, 30/34V, 48/54V) Contacts Front communications port
0.12W (110/125V) • Contact ratings: • Connection Point to point
0.19W (220/250V)
Make: 30A and carry for 3s • Cable type Multi-core
Each additional output relay
0,13W Carry: 10A continuous • Cable length 15m max

• Nominal voltage circuit Break: dc 50W resistive • Connector RS232 DTE

Vn 100 – 120V < 0.02VA at 62.5W inductive 9 pin D-type female
110V (L/R = 50ms) • Protocol Courier
Vn 380 – 480V < 0.02VA at ac 2500VA resistive
• Isolation ELV
440V ac 2500VA inductive
(P.F. = 0.7) • Local access
• Nominal current circuit
Phase and neutral Subject to maxima of 10A and 300V
<0.1Ω at 1A
<0.02Ω at 5A

12
IRIG-B Port Three positive and three negative • Radiated immunity
impulses of 5kV peak, 1.2/50µs, C37.90.2: 1995
• Carrier signal
0.5J between all terminals and
Amplitude modulated 25MHz to 1000MHz, zero and
all terminals and case earth.
100% square wave modulated.
• Cable type Electrical environment Field strength of 35V/m.
50 ohm coaxial cable • DC supply interruption • Electrostatic discharge
• Connection BNC IEC 60255-11: 1979 IEC 60255-22-2: 1996 Class 4
• Isolation SELV The unit will withstand a 20ms 15kV discharge in air to user
interruption in the auxiliary interface, display and exposed
Internal battery
supply, in its quiescent state, metal work.
1/
Battery type: 2AA, 3.6V without de-energising. IEC 60255-22-2: 1996 Class 3
Download/monitor port • AC ripple on dc supply 8kV discharge in air to all
This is a 25 pin D-type female IEC 60255-11: 1979 communication ports. 6kV point
connector located on the front user contact discharge to any part of
The unit will withstand a 12% ac the front of the product.
interface and is specifically
ripple on the dc supply.
designed for test purposes and • Surge immunity
software download. • AC voltage dips and short
interruptions IEC 61000-4-5: 1995 Level 4
• Isolation ELV 4kV peak, 1.2/50µs between all
IEC 61000-4-11: 1994
• Local access groups and case earth.
20ms interruptions/dips.
High voltage withstand 2kV peak, 1.2/50µs between
• High frequency disturbance terminals of each group.
This is not applicable to the RS232
IEC 60255-22-1: 1988 Class III This is not applicable to the
and download/monitor ports.
At 1MHz, for 2s with 200 RS232 and download/monitor
• Dielectric withstand source impedance: ports.
IEC 60255-5: 1977 2.5kV peak between • EMC compliance
2kV rms for 1 minute between all independent circuits and 89/336/EEC
case terminals connected independent circuits and case
together and the case earth. earth. Compliance to the European
Commission Directive on EMC is
2kV rms for 1 minute between all 1.0kV peak across terminals of claimed via the Technical
terminals of independent circuits the same circuit. Construction File route.
with terminals on each This is not applicable to the RS232 and
independent circuit connected download/monitor ports.
Generic Standards were used to
together. establish conformity:
• Fast transient disturbance EN50081-2: 1994
ANSI/IEEE C37.90-1989
(r1994) IEC 60255-22-4 : 1992 Class IV EN50082-2: 1995
1kV rms for 1 minute across the 4kV, 2.5kHz applied directly to • Product safety
open contacts of the watchdog auxiliary supply
73/23/EEC
relays. 4kV, 2.5kHz applied to all
inputs. Compliance with European
1kV rms for 1 minute across
Commission Low Voltage
open contacts of changeover This is not applicable to the
RS232 and download/monitor Directive.
output relays.
ports. Compliance is demonstrated by
1.5kV rms for 1 minute across
• Surge withstand capability reference to generic safety
open contacts of normally open
IEEE/ANSI C37.90.1 (1989) standards:
output relays.
4kV fast transient and 2.5kV EN61010-1: 1993/A2: 1995
• High voltage impulse
oscillatory applied directly across
EN60950: 1992/A11: 1997
IEC 60255-5: 1977 each output contact, optically
isolated input and power supply
circuit.

13
Atmospheric environment Additional information
• Temperature MiCOM P14x Series
IEC 60255-6:1988 Technical Guide TG8612
Operating –25°C to +55°C Operation Guide OG8612
Storage and transit –25°C to Courier Communications R4113
+70°C
MiCOM S1 User Manual R8610
IEC 60068-2-1: 1990/A2:1994
Midos Parts Catalogue
Cold
and Assembly Instructions R7012
IEC 60068-2-2: 1974/A2:1994
PAS&T R8514
Dry heat
• Humidity
Case
IEC 60068-2-3: 1969
The MiCOM P14x series relays are housed in a specially designed case
56 days at 93% RH and +40°C
providing a high density of functionality within the product, a customisable
• Enclosure protection user interface, additional functions and information concealed by upper and
IEC 60529: 1989 lower covers. Physical protection of the front panel user interface and
prevention of casual access is provided by an optional transparent front
IP52 Protection (front panel) cover, which can be fitted or omitted according to choice, since the front
against dust and dripping water panel has been designed to IP52 protection against dust and water. The
at 15° to the vertical.
case is suitable for either rack or panel mounting as shown in
Mechanical environment Figures 7 and 8.

• Vibration
IEC 60255-21-1: 1996
8 off holes Dia. 3.4
Response Class 2 23.30 155.40
A B BA
Endurance Class 2 Sealing strip
177.0
159.00 168.00 (4U)
• Shock and bump
AB BA
IEC 60255-21-2: 1995
10.35 181.30 483 (19” rack)
Shock response Class 2 202.00
Flush mounting panel
Shock withstand Class 1 A = Clearance holes
Panel cut-out detail
B = Mounting holes
Bump Class 1
200.00 Note: If mounting plate
• Seismic is required use flush
mounting cut out dimensions
IEC 60255-21-3: 1995 Class 2

Cases All dimensions in mm

• P141 & P142 MiCOM 40TE

• P143 MiCOM 60TE Secondary cover (when fitted)
Front view 240.00
• Weight Incl. wiring
P141/P142 c.7.3 kg
P143 c.9.2 kg 177.00 157.5 max

Side view
206.00 30.00

Figure 7: Case sizes P141 and P142 (40TE)

14
 116.55 142.45 Sealing
23.25 12 off holes Dia. 3.4 strip
AB A B BA

168.00
177.0
159.00 (4U)

AB B A BA

10.30 155.40 129.50

483 (19” rack)
305.50
A = Clearance holes
B = Mounting holes
303.50

All dimensions in mm

Secondary cover (when fitted)

240.00
Front view Incl. wiring

177.00 157.5 max

Side view
309.60 30.00

Figure 8: Case size P143 (60TE) viewing and acknowledgement of

alarms. Fixed and programmable
scheme logic shall be provided.
MiCOM P14x Series specification
Programmable scheme logic for
An integrated feeder protection and overfrequency protection shall be configuring custom logic schemes shall
autoreclose scheme shall provide provided. be uploadable from relay to PC or PC
3 phase overcurrent and earth fault to relay. The relay shall store factory
The device shall be responsive to
protection with faulted phase default protection and scheme logic
unbalanced conditions providing
indication. An integral three pole settings for restoration or upload to a
alarm and tripping signals. Back-up
multi-shot autorecloser shall support PC.
protection for remote phase-phase and
check synchronising, live line working
phase-ground faults shall also be Time-tagged event, fault and
and sequence co-ordination.
available. disturbance records shall be stored in
Five dual rated 1/5A CT inputs battery backed memory.
Thermal protection with single and
shall be available for connection to 3
dual time constant characteristics The internal disturbance recorder shall
phase and 2 earth CTs.
suitable for cables and transformers have a capacity to store 20 records,
Four stages of directional phase shall be provided. The thermal state each record shall store sampled data
overcurrent and earth fault protection shall be stored in non-volatile memory. from 8 analogue and 32 digital
shall be provided, with a selection of channels over a period of 10
Programming of the device shall be
nine IDMT characteristics for two of seconds.
possible using a front panel user
the stages. Cold load pick-up logic
interface, local and remote The vendor shall be able to provide
shall provide co-ordination with
communications ports. software support for local and remote
upstream devices and allow protection
A configuration feature shall be programming, and extraction of
settings to be set closer to the load
provided to enable selection of records from the device.
profile during short term overload
required functions. This shall allow
conditions. An additional CT shall be A comprehensive range of
menu customisation removing
provided for sensitive and restricted instantaneous and integrated
unwanted functions and setting groups
earth fault protection. measurement values shall be available
from the settings display.
Four independent stages of The front panel user interface shall for viewing on the user interface and
underfrequency protection and two of provide independent keys for the the communications ports.

15
Information required with order

Relay type MiCOM P 1 4 xxxx

Feeder Management Relay

Version

Standard version 1
With integral autoreclose 2
With integral autoreclose and check synchronising 3

Vx aux rating

24 – 48V dc 1
48 – 110V dc (30 – 100V ac) 2
110 – 250V dc (100 – 240V ac) 3

Vn rating

100 – 120V ac 1
380 – 480V ac 2

Hardware options

Standard version 1
IRIG-B input 2
Fibre optic converter (IEC 60870-5-103) 3
IRIG-B input & fibre optic converter (IEC 60870-5-103) 4

Expansion modules fitted

P141 P142 P143

No additional hardware A
4 + 4 card B
Additional 8 optos C
Additional 8 relays D
Additional 8 optos and 8 relays E
Additional 16 optos F
Additional 16 relays G

Protocol options

K-Bus 1
Modbus 2
IEC 60870-5-103 (VDEW) 3
DNP 3.0 4

Original hardware/software A
48V opto inputs only
Lower contact rating
No I/O expansion available
Technical guide reference TG8612C

Latest harware/software as described in this publication B

Technical guide reference P140x/EN T/A22

16
Accessories Please quote on order

Rack frame, (in accordance with IEC 60297) FX0021 001

Case to rack sealing gaskets are available to improve the overall IP GN2044 001
rating of the panel, (10 per order)
M4 90° pre-insulated ring terminals:
Blue - Wire size 1.04 - 2.63mm2 (100 per order) ZB9124 900
Red - Wire size 0.25 - 1.65mm2 (100 per order) ZB9124 901

Secondary cover: P141, P142 Size 40TE GN0037 001

P143 Size 60TE GN0038 001

Blanking plates: Size 10TE GJ2028 002

Size 20TE GJ2028 004
Size 30TE GJ2028 006
Size 40TE GJ2028 008

Stabilising resistors (for high impedance restricted earth fault) ZB9016

METROSILS (for high impedance restricted earth fault) ZB9411

Resistor box 8 digital inputs - 110V GJ0229 006

Resistor box 8 digital inputs - 220V GJ0229 007

Push-on tab: 4.8 x 0.8mm converter for 18 way medium duty terminal block (20 per order) ZA0005 104

Px40 - Monitor/Download port test box ZA1094 001

2 metre long, 3-wire serial communications cable kit for use with:
PC to KITZ or ZA0012 001
PC to MiCOM relay via front port

17
ALSTOM T&D Protection & Control Business contact addresses

PCB Head Office Australia and Pacific Islands

ALSTOM T&D P&C International Contact Centre ALSTOM AUSTRALIA Ltd
Le Sextant On line 24 hours a day Protection & Control Division
3, avenue André Malraux Tel: +44 (0)1785 25 00 70 PO Box 22, 25 Princes Road
92300 Levallois-Perret - FRANCE Fax: +44 (0)1785 27 24 51 Regents Park, NSW 2143 Sydney
Tel: +33 (0)1 41 49 20 00 www.tde.alstom.com/p-c/en/contcent.htm AUSTRALIA
Fax: +33 (0)1 41 49 24 85 Tel: +61 29 645 0777
protection.control@tde.alstom.com South East Europe Fax: +61 29 743 8488
ALSTOM AUSTRIA AG pcb-map.australia@tde.alstom.com
Western Europe and Africa Hietzinger Kai 169
North and South America
A1130 - Vienna - AUSTRIA
United Kingdom and Northern Europe Tel: +43 1 87893 726 Sales & Services North & South America
ALSTOM T&D P&C Ltd Fax: +43 1 87893 750
St Leonards Works - Stafford ALSTOM T&D PCB
pcb-wea.austria@tde.alstom.com
ST17 4LX - UNITED KINGDOM 330 Biscayne Blvd # 806
Tel: +44 (0)1785 223251 Central Europe Miami, FL 33132 - USA
Fax: +44 (0)1785 212232 ALSTOM T&D SA Tel: +1 (305) 371 5060
pcb-wea.uk@tde.alstom.com uI. Strzegomska 23/27 Fax: +1 (305) 373 0061
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France, Belgium and Luxembourg Tel: +48 74 854 84 10
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ALSTOM T&D P&C SA Fax: +48 74 854 85 48
261 Brodhead Road - Bethlehem
Avenue de Figuières pcb-gee.poland@tde.alstom.com
PA 18017-8698 - USA
34975 Lattes Cedex - FRANCE
Tel: +1 610 997 51 00
Tel: +33 (0)4 67 20 54 54
Middle East Asia and Pacific Fax: +1 610 997 51 54
Fax: +33 (0)4 67 20 54 99
pcb-nsa.usa@tde.alstom.com
pcb-wea.france@tde.alstom.com Middle East Asia
Mediterranean and Africa ALSTOM T&D P&C Ltd Canada
12th Floor, Cresent Tower ALSTOM CANADA Inc.
ALSTOM T&D P&C SA
Buhaira Corniche - PO Box 25448 T&D Protection & Control
Avenue de Figuières
Sharjah - UNITED ARAB EMIRATES 7 B Place du Commerce
34975 Lattes Cedex - FRANCE Tel: +971 6 556 3971 Brossard - Quebec J4W 3K3
Tel: +33 (0)4 67 20 54 54 Fax: +971 6 556 1082 CANADA
Fax: +33 (0)4 67 20 54 99 pcb-map.uae@tde.alstom.com Tel: +1 450 923 7070
pcb-wea.mediterranea-africa@tde.alstom.com
Fax: +1 450 923 9571
India and South Asia pcb-nsa.canada@tde.alstom.com
Italy ALSTOM INDIA Ltd
ALSTOM FIR S.p.A Protection & Control Division Mexico and Central America
Viale Giulio Cesare, 29 19/1 GST Road Pallavaram Works
24124 - Bergamo - ITALY ALSTOM T&D SA DE CV
Chennai (Madras) 600 043 - INDIA
Tel: +39 035 5791611 Paseo de la Reforma 35, piso 6
Tel: +91 44 236 8621
Fax: +39 035 5791662 Col Tabalera - CP 060030 - MEXICO
Fax: +9144 236 7276
pcb-wea.italy@tde.alstom.com Tel: +52 55 57 05 19 37
pcb-map.india@tde.alstom.com
Fax: +52 55 55 46 46 96
Spain and Portugal South East Asia pcb-nsa.mexico@tde.alstom.com
ALSTOM T&D, S.A. ALSTOM T&D P&C Ltd
Paseo de la Castellana, 257 31 Kaki Bukit Road 3 South America (North)
28046 Madrid - SPAIN #02-05, Techlink ALSTOM ARGENTINA SA P&C
Tel: +34 91 334 59 43 Singapore 417818 - SINGAPORE Venezuela 3853 - B1667HLC Tortuguitas
Fax: +34 91 334 59 42 Tel: +65 843 3130 Malvinas Argentinas
pcb-wea.spain@tde.alstom.com Fax: +65 846 1796 Prov. de Buenos Aires - ARGENTINA
pcb-map.singapore@tde.alstom.com Tel: +54 3327 457 900 (x112)
South Africa
Fax: +54 3327 453 777
ALSTOM MEASUREMENTS
China and North East Asia pcb-nsa.argentina@tde.alstom.com
PO Box 24 - Primrose 1416
Gauteng, SOUTH AFRICA ALSTOM T&D P&C
Brazil
Tel: +27 11 820 5111 Room 910-912, 9th floor
New Kowloon plaza ALSTOM T&D Ltd Protecção e Control
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CEP-04661-300 Sao Paulo
Kowloon, Hong Kong - CHINA
Sao Paulo - BRAZIL
Tel: +852 2833 6265
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Fax: +852 2834 5279
Fax: +55 (0)11 3491 73 00
Germany and Switzerland pcb-map.china@tde.alstom.com
pcb-nsa.brazil@tde.alstom.com
Russian Speaking Countries
ALSTOM T&D Shanghai
ALSTOM ENERGIETECHNIK GmbH South America (South)
Power Automation Co. Ltd
Bereich Schutz- und ALSTOM ARGENTINA SA P&C
1/B Building - No. 499 Kangyi Road
Schaltanlagenleittechnik
Pudong Kangqiao Venezuela 3853 - B1667HLC Tortuguitas
Lyoner Straße 44-48
Industrial Development Zone Malvinas Argentinas
D 60528 Frankfurt/Main - GERMANY Shanghai 201315 - CHINA Prov. de Buenos Aires - ARGENTINA
Tel: +49 69 66 32 33 33 Tel : + 86 (21) 5812 8822 Tel: +54 3327 457 900 (x115)
Fax: +49 69 66 32 25 48 Fax : + 86 (21) 5812 8833 Fax: +54 3327 453 777
pcb-gee.germany@tde.alstom.com pcb-map.china@tde.alstom.com pcb-nsa.argentina@tde.alstom.com

18
Notes:

Your contact:

19
 © 2002 ALSTOM - 040201 Clément imprimeurs
Publication: P14x/EN BR/Fa

T R A N S M I S S I O N & D I S T R I B U T I O N Protection & Control, Le Sextant, 3 avenue André Malraux, 92300 Levallois-Perret. France
Tel: +33 (0) 141 49 20 00 Fax: +33 (0) 1 41 49 24 85 Email: protection.control@tde.alstom.com Internet: www.tde.alstom.com
Contact Centre on line 24 hours a day : +44 (0) 1785 25 00 70

ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and service marks of ALSTOM.
MiCOM is a registered trademark of ALSTOM. Other names mentioned, registered or not, are the property of their respective companies.
Our policy is one of continuous development. Accordingly the design of our products may change at any time. Whilst every effort is made to produce up to date literature, this
brochure should only be regarded as a guide and is intended for information purposes only. Its contents do not constitute an offer for sale or advice on the application of any product
referred to in it. We cannot be held responsible for any reliance on any decisions taken on its contents without specific advice.