ABB SPAJ 141 C Parts list manual

ABB Network Partner
User´s manual and
Technical description SPAJ 141 C
Combined overcurrent
and earth-fault relay
U
RS 611 Ser.No.
fn= 50 / 60 Hz
n=
n=
SPAJ 141 C
aux
SPCJ 4D24
REGISTERS OPER.IND.
0000 0
1
2
3
4
5
6
7
8
n
/
L3
n
/
L1
n
/
L2
max (15min)
on
1
2
3
4
5
6
7
8
>START
>TRIP
>
>TRIP
>
>START
>
oSTART
>
>
oSTART
>
oTRIP
>
>
oTRIP
2
5
9
%
)(
>%
)(
>>
()
>
o%
(
o
)
%
>> CBFP
9 t
t
t
t
[]
[]
[]
[]
I
0084A
I
()
I
()
o
I
I
I
I
I
I
III
III
I
IIIIIIII
n
I
/
I
80...265V ~
–
18...80V –
5A1A 1A0.2A
%
[]
SGR
SGB
SGF
SPCJ 4D24
TRIP
PROGRAM
RESET
STEP
L1 L2 L3 oIRF
3>
I
I
I
II
I
>n
II
/
ks
>
t
[]
n
>>
II
/
s
>>[]
t
s
o>[]
t
n
o>
II
s
>>
o
t
[]
n
>>
o
II
0085A
%
[]
%
[]

2
1MRS 750872-MUM EN
Issued 97-10-13
Version A (replaces 34 SPAJ 17 EN1)
Checked
Approved
Data subject to change without notice
Station
Automation
SPAJ 141 C
Combined overcurrent
and earth-fault relay
Contents Characteristics ................................................................................................................ 2
Application.....................................................................................................................2
Description of operation................................................................................................. 3
Connection diagram....................................................................................................... 4
Connections ................................................................................................................... 6
Control signals between the modules.............................................................................. 7
Signal abbreviations used................................................................................................ 7
Operation indicators....................................................................................................... 8
Power supply and output relay module........................................................................... 9
Technical data............................................................................................................... 10
Maintenance and repairs............................................................................................... 13
Spare parts .................................................................................................................... 13
Dimensions and instructions for mounting .................................................................. 14
Ordering information ................................................................................................... 15
The complete manual for the relay SPAJ 141 C contains the following partial manuals:
General relay description 1MRS 750872-MUM EN
General characteristics of D-type relay modules 1MRS 750066-MUM EN
Combined overcurrent and earth-fault module SPCJ 4D24 1MRS 750121-MUM EN
Characteristics Three-phaselow-setovercurrentunitwithdefi-
nite time or inverse definite minimum time
(IDMT) characteristic.
Three-phase high-set overcurrent unit with in-
stantaneous or definite time function.
Low-set sensitive, non-directional earth-fault
protection with definite time characteristic.
High-setnon-directionalearth-faultprotection
with instantaneous or definite time function.
Built-in breaker failure protection scheme.
Fullyfield-selectableoutputrelayconfiguration.
Extensivedatacommunicationcapabilitiesover
built-in serial port.
Outstandingdesignflexibility foreasyselection
of appropriate operation schemes for various
applications.
Numerical display of setting values, current
measured values, memorized fault values etc.
Continuous self-supervision with auto-diagno-
sis of internal faults.
Application The combined overcurrent and earth-fault relay
SPAJ141 C is intendedto be usedfor the selec-
tive short-circuit and earth-fault protection of
radialfeeders in resistanceearthedorimpedance
earthed power systems. The integrated protec-
tiverelaycomprisesbothanovercurrentunitand
an earth-fault unit with highly flexible tripping
andsignallingfacilities.Thefeederprotectioncan
be used in applications requiring a single-, two-
orthree-phaseovercurrentprotectionandanon-
directional earth-fault protection. The overcur-
rentandearth-faultrelayalso comprises a circuit
breaker failure protection.

3
Description
of operation The combined overcurrent and earth-fault relay
is a secondary relay device to be connected to
the current transformers of the feeder to be
protected.Thethree-phaseovercurrentunitand
the non-directional earth-fault unit continu-
ously measure the phase currents and the neu-
tralcurrentoftheprotectedfeeder. Infaultsitu-
ations these units initiate external auto-reclose
functionsortripthecircuit-breaker,depending
on the selected protective scheme.
When a phase current exceeds the starting value
of the low-set overcurrent unit, the unit starts, si-
multaneously starting the corresponding timing
circuit. When the set operating time has elapsed,
a circuit-breaker tripping command is delivered.
Correspondingly, the high-set stage of the over-
current unit starts when its starting value is ex-
ceeded, starting its timing circuit and performing
a tripping when the set time has elapsed.
The low-set stage of the non-directional earth-
fault unit operates in the same way. Depending
on the protective scheme it either signals, per-
forms a tripping or initiates a function of an
external auto-reclose relay. The input circuit
comprises a low-pass filter, which reduces the
amount of harmonics in the neutral current
before the signal is measured.
Thelow-setstageoftheovercurrentunitmaybe
given definite time or inverse definite minimum
time (IDMT) characteristics. When the IDMT
characteristic is to be chosen six curve types are
available in the relay. Four of the curves types
complywithBS142andIEC255andarenamed
normal inverse, very inverse, extremely inverse
andlong-timeinverse.Thetwoadditionalcurves
are named the RI curve and the RXIDG curve.
The low-set stage of the earth-fault unit is oper-
ating on a definite time basis.
By appropriate programming of the tripping
relay matrix, the starting signals of the overcur-
rentandnon-directionalearth-faultmodulesare
received as contact functions. This contact in-
formation is used e.g. for the blocking of co-
operating protective relays located upstreams.
The relay comprises one external logic control
input, which is actuated by a control signal of
the auxiliaryvoltagelevel.Theinfluenceonthe
relaybythecontrolinputisdeterminedbypro-
gramming switches in the measuring module.
The control input can be used either for block-
ing one or more of the protective stages, for re-
setting a latched output relay in the manual re-
set mode or for selecting a new group of relay
settings by remote control.
Fig. 1. Protective functions of the overcurrent and earth-fault relay SPAJ 141 C.
Three phase definite time or
dependent time low-set
overcurrent protection
Serial communication port
Trip
Signal 1
Serial I/O
IL1
IL2
IL3
Io
Blocking or
reset
Three phase instantaneous or
dependent time high-set
overcurrent protection
Instantaneous or definite time
high-set earth-fault protection
Remote reset, remote setting control or
blocking input for the different current stages
Signal 2
Start 1
IRF
Start 2
Circuit breaker failure protection
Definite time low-set
earth-fault protection
51
50
51 N
51BF
50 N

4
Connection
diagram
61
62
SPAJ 141 C
63
25
27
28
1
2
3
4
5
6
7
8
9
0.2 A
1 A
L1
L2
L3
70
71
72
0
65
66
U
+ (~)
- (~)
3I>
3I>>
Io>
Io>>
IRF
I/O
68
69
77
78
IRF
SIGNAL 2
-
+
TRIP
74
75
START 1
80
81
10
11
SGB/1
SGB/2
SGB/3
SGB/4
SGB/6
SGB/7
SGB/5
LATCHING
SIGNAL 1
START 2
RESET
I
-
I
0
+
+
+
B
+
C
+
F
+
E
+
D
+
A
U1
1
1
T2
T4
T6
T8
T1
T3
T5
T7
RC SETTINGS
SGB/8
SGF/4
0.1...1s
SGR2/8
SGR1/6
SGR1/8
SGR1/2
SGR1/4
U3
TRIP
R
U2
U1
T9
TS2
SS3
SS2
SS1
TS1
SPA-ZC_
Rx
Tx
SERIAL
PORT
+
-
1 A
5 A
1 A
5 A
1 A
5 A
SGR2/6
SGR2/4
SGR2/2
1
SGR2/7
SGR2/5
SGR2/3
SGR2/1
1
SGR1/7
SGR1/5
SGR1/3
SGR1/1
1
SGR3/8
SGR3/7
SGR3/6
SGR3/5
SGR3/4
SGR3/3
SGR3/2
SGR3/1
aux
~
EXTERNAL CONTROL
Fig. 2. Connection diagram for the combined overcurrent and earth-fault relay SPAJ 141 C with
all the relay matrix switchgroups shown.

5
Uaux Auxiliary voltage
A, B, C, D, E, F Output relays
IRF Self-supervision
SGR Switchgroups for the configuration of trippings and signallings
SGB Switchgroup for the configuration of the blocking or control signal
TRIP Trip output relay
SIGNAL 1 Signal on overcurrent trip
SIGNAL 2 Signal on earth-fault trip
START 1 Starting or auxiliary trip signal as selected with switchgroup SGR3
START 2 Starting of overcurrent low-set stage I>
U1 Three-phase overcurrent and non-directional earth-fault module SPCJ 4D24
U3 Input module SPTE 4E2
U2 Power supply and output relay module
SPTU 240 R1 or SPTU 48 R1
T1…T8 Starting and tripping indications
SERIAL PORT Serial communication interface
SPA-ZC_ Bus connection module
Rx/Tx Receiver bus terminal (Rx) and transmitter bus terminal (Tx) of the bus
connection module
Fig. 3. Rear view of relay SPAJ 141 C.
Made in Finland
= 63
68
69
77
78
80
81
1
2
3
4
5
6
7
8
9
25
27
28
61
62
63
65
66
74
75
70
71
72
10
11
Serial Port
SPA

6
Connections Thethreephase-currentsoftheovercurrentpro-
tection are connected to terminals 1-2, 4-5 and
7-8, when the rated current of the secondary
circuits is In= 5 A. When using current trans-
formers with a rated current of 1 A, terminals
1-3,4-6and7-9areused.Theovercurrent pro-
tectionmay alsobeusedinsingle-phaseortwo-
phase applications, in which case inputs not to
be used are left unconnected. In single-phase
applications,however,wiring the phasecurrent
through two current inputs in series may in-
creasetheoperatingspeed of the relay, particu-
larly for instantaneous operations.
The neutral current of the earth-fault protec-
tion is connected to terminals 25-27 when the
ratedcurrentis1Aandtoterminals25-28when
the rated current is 0.2 A.
The control input 10-11 can be used in three
different ways, as the control input of an exter-
nalblockingsignalfor themeasuringmodules,
asthecontrolinputforunlatchingthe trip relay,
or as the control input for the remote control
of settings. The function is selected by means
of switches 1...8 of switchgroup SGB in the
main menu of the measuring relay module.
Theauxiliarysupplyvoltageoftherelay iscon-
nected to the terminals 61-62. At d.c. auxiliary
supply voltage the positive lead is connected to
terminal 61. The level of the voltage to be ap-
pliedtothe terminals is determinedbythetype
of power supply and output relay module in-
serted in the protection. For further details see
thedescriptionofthepowersupplymodule.The
auxiliary voltage range of the relay has been
marked on the front panel.
Output relay A provides the CB tripping com-
mandssothattheCBoperatesoncetheoperat-
ing time of the low-set or high-set stage of the
overcurrentornon-directionalearth-faultmod-
ule has elapsed. The stages to perform a trip-
ping are selected with switches 2,4,6 and 8 of
switchgroup SGR1. On delivery from factory
all stages are selected to perform tripping. A
latching function of the output relay A can be
selected by means of switches SGB 6 and 7 for
overcurrent and earth-fault trippings.
Thetripalarmsignalsfromthemeasuringmod-
ules are obtained through output relays B and
C. The signals to be forwarded to the output
relays B and C are selected with switches1...8
of switchgroup SGR2 of the measuring mod-
ule. The switch matrixes for configuration of
the control signals of the output relays B and C
identical. Normally the output relays B and C
are given such a configuration that low-set and
high-setovercurrenttripalarmsignalisobtained
over relay C and the corresponding alarm sig-
nal for the earth-fault trips via output relay B.
This is also the default setting on delivery.
The starting signals from the protective stages
of the relay are received through output relay
D. The signals to be forwarded to the output
relayDareselectedbymeansofswitches1,3,5
and 7 of switchgroup SGR1 which is found in
the main menu of the measuring module. The
startingsignalsofthelow-setand high-set stage
oftheovercurrentunitareselectedwithswitches
1 and 3, whereas switches 5 and 7 convey the
corresponding signals of the non-directional
earth-fault unit.
OutputrelayE,terminals74-75,isaheavyduty
output relay capable of controlling a circuit
breaker, like the main trip relay A. Relay E is
usedmainlyforbringingoutanystartingortime
delayedsignalforstartingofauto-reclosures,for
signalling or counting purposes or for auxiliary
trip. Output relay E is also used as a tripping
outputforthecircuitbreakerfailureprotection,
CBFPwhentheCBFPfunctionisused. Inthis
casethetrip signal canbeused either to control
a circuit breaker upstreams or to control a sec-
ondtripcoilonthemaincircuitbreakertogive
a higher redundancy to the breaker operation.
OutputrelayF,terminals70-71-72,operatesas
the output relay of the self-supervision system
of the relay. The relay operates on the closed-
circuit principle so that in normal service con-
ditionsthecontactgap70-72isclosed.Ifafault
is detected by the self-supervision system, or if
thereisafailureintheauxiliarysupply,theout-
putrelaydropsoffprovidinganalarmsignalby
closing the NO contact 71-72.
The relay is interfaced with a data transmission
busthrougha9-pole,D-typesubminiaturecon-
nector located at the rear panel of the relay. By
means of bus connection modules SPA-ZC 17
or SPA-ZC 21, the overcurrent and earth-fault
relay can be linked to the fibre-optic bus. The
terminalsofthefibre-opticcablesareconnected
to the counter terminals Rx and Tx of the bus
connection module. The fibre-optic cables are
linked from one protection to another and to
the substation level communication unit, for
instance type SRIO 1000M.

7
Control signals
between the
modules
The figure below schematically illustrates how
thestarting, tripping, controland blocking sig- nals can be programmed to obtain the required function of the protection.
SGR3 / 6
SGR1 / 8
IL1
IL2
IL3
SGR3 / 1
SGR1 / 1
SGR3 / 2
SGR2 / 1
SGR2 / 2
SGR1 / 2
SGR3 / 3
SGR1 / 3
SGR3 / 4
SGR2 / 3
SGR2 / 4
SGR1 / 4
SGR3 / 5
SGR1 / 5
SGR2 / 5
SGR2 / 6
SGR1 / 6
SGR3 / 7
SGR1 / 7
SGR3 / 8
SGR2 / 7
SGR2 / 8
I>
I>> t>>
t>, k
to>
Io>
to>>
Io>>
Io
BS
SGB / 1
SGB / 2
SGB / 3
SGB / 4
SGB / 5
SGB / 8 REMOTE SETTINGS
RELAY RESET
1
SGB / 6 RESET+
PROGRAM
1
SGB / 7 RESET+
PROGRAM 1
1
1
SGF1 / 4
SS1
SS2
SPCJ 4D24
TS1
TS2
SS3
RESET TRIP
0.1...1s
A
B
C
D
F
IRF
E
START 1
START 2
SIGNAL 1
SIGNAL 2
TRIP
IRF
(AR2)
(AR1)
(AR3)
SGF2 / 8
SGF2 / 7
SPTU ___R1
Fig. 4. Control signals between the modules of the overcurrent and earth-fault relay SPAJ 141 C.
The functions of the blocking and starting sig-
nals are selected with the switches of switch-
groups SGF, SGB and SGR.The checksums of
theswitchgroups, arefoundinthesettingmenu
of the measuring relay module. The functions
of the different switches are explained in the
user´s manual of the measuring module SPCJ
4D24.
Signal
abbreviations
used
IL1, IL2, IL3 Phase currents to be measured
I0Neutral current
BS Blocking or control Signal
SS1 Starting Signal 1
SS2 Starting Signal 2
SS3 Starting Signal 3
TS1 Tripping Signal 1
TS2 Tripping Signal 2
BS Blocking Signal
AR1...3 Auto-Reclose starting signals (not in use in SPAJ 141 C)
IRF Internal Relay Fault signal
SGF Switch Group for Functions
SGB Switch Group for Blockings
SGR Switch Group for Relay configuration
IRF Internal Relay Fault
Rx/Tx Receiver/Transmitter channel

8
Operation
indicators A) The indicator TRIP is lit when one of the
protective stages operate. When the protective
stage resets, the red indicator remains lit.
B) If the display is dark when one of the pro-
tective stages I>, I>>, I0> or I0>> call for a trip-
ping, the faulty phase or the neutral path is in-
dicated with a yellow LED. If, for instance, the
TRIP indicator glows red, and the indicators
IL1 and IL2 at the same time are illuminated,
overcurrent has occurred on phase L1 and L2.
C) Besides being a code number at data presen-
tation,theleftmostreddigitorthedisplayserves
as a visual opetarion indicator. An operation in-
dicatorisrecognizedbythefactthatthereddigit
aloneisswitchedon.The followingtablenamed
OPERATION IND. on the relay front panel is
a key to the function code numbers used.
U
RS 611 Ser.No.
fn= 50 / 60 Hz
n=
n=
SPAJ 141 C
aux
SPCJ 4D24
REGISTERS OPER.IND.
0000 0
1
2
3
4
5
6
7
8
n
/
L3
n
/
L1
n
/
L2
max (15min)
on
1
2
3
4
5
6
7
8
>START
>TRIP
>
>TRIP
>
>START
>
oSTART
>
>
oSTART
>
oTRIP
>
>
oTRIP
2
5
9
%
)(
>%
)(
>>
()
>
o%
(
o
)
%
>> CBFP
9 t
t
t
t
[]
[]
[]
[]
I
0084A
I
()
I
()
o
I
I
I
I
I
I
III
III
I
IIIIIIII
n
I
/
I
80...265V ~
–
18...80V –
5A1A 1A0.2A
%
[]
SGR
SGB
SGF
SPCJ 4D24
TRIP
PROGRAM
RESET
STEP
L1 L2 L3 o
IRF
3>
I
I
I
II
I
>n
II
/
ks
>
t
[]
n
>>
II
/
s
>>
[]
t
s
o>
[]
t
n
o>
II
s
>>
o
t
[]
n
>>
o
II
0085A
%
[]
%
[]
Indication Explanation
1 I> START =The low-set stage I> of the overcurrent unit has started
2 I> TRIP =The low-set stage I> of the overcurrent unit has tripped
3 I>> START =The high-set stage I>> of the overcurrent unit has started
4 I>> TRIP =The high-set stage I>> of the overcurrent unit has tripped
5I
0> START = The low-set stage I0> of the earth-fault unit has started
6I
0>TRIP =The low-set stage I0> of the earth-fault unit has tripped
7I
0>> START = The high-set stage I0>> of the earth-fault unit has started
8I
0>>TRIP = The high-set stage I0>> of the earth-fault unit has tripped
9 CBFP = Circuit Breaker Failure Protection has operated
D)The TRIPindicationspersistwhen thepro-
tectivestagereturnstonormal.The indicator is
reset by pushing the RESET/STEP push-but-
ton.
Further, the indicators may be reset via the ex-
ternal control input 10-11 by applying a con-
trol voltage to the input, provided that the
switch SGB/8 is in position 1.
The basic protective relay functions are not de-
pending on the state of the operation indica-
tors,resetornon-reset.Therelayispermanently
operative.
If a protective stage starts, but no tripping oc-
curs because the energizing quantity goes be-
low the starting level before the delay circuit
times out, the starting indicators are normally
automaticallyswitched off.However,bymeans
of the switches SGF2/1…4 the starting indica-
tionsmaybemade persistant which meansthat
they are to be reset by pushing the RESET/
STEP push-button.
Thepersistentindicationsareobtainedthrough
the following programming.
Switch SGF2/1 = 1
Starting indication on I> persistent
Switch SGF2/2 = 1
Starting indication on I>> persistent
Switch SGF2/3 = 1
Starting indication on I0> persistent
Switch SGF2/4 = 1
Starting indication on I0>> persistent
OndeliveryfromthefactorytheswitchesSGF2/
1…4 have the preset configuration 0.
E)Shortlyaftertheinternalself-supervisionsys-
tem has detected a permanent relay fault the
red IRF indicator is switched on and the output
relayoftheself-supervisionsystemoperates.Fur-
ther, in most fault situations a autodiagnostic
faultcodeisshowninthedisplay.Thefaultcode
is composed of a red figure 1 and a green code
number which indicates what may be the fault
type. The fault code persists until the STEP/
RESET button is pressed. When a fault code
appearsonthedisplay,thecodenumbershould
be recorded and stated when service is ordered.

9
Power supply
and output
relay module
To be able to operate the relay needs a secured
auxiliaryvoltagesupply.Thepowersupplymod-
ule forms the voltages required by the measur-
ing relay module and the auxiliary relays. The
withdrawable power supply and output relay
moduleislocatedbehindthesystemfrontpanel,
which is fixed by means of form cross-slotted
screws. The power supply and output relay
modulecontainsthepowersupplyunit,allout-
put relays, the control circuits of the output re-
lays and the electronic circuitry of the external
control inputs.
Thepowersupplyandoutputrelaymodulecan
be withdrawn after removing the system front
panel. The primary side of the power supply
module is protected with a fuse, F1, located on
the PCB of the module. The fuse size is 1 A
(slow).
The power supply unit is a transformer con-
nected, i.e. galvanically isolated primary and
secondaryside,flyback-typedc/dcconverter. It
formsthedcsecondaryvoltagesrequiredbythe
measuring relay module; that is +24 V, ±12 V
and+8V.The outputvoltages±12Vand+24V
are stabilizedinthepowersupplymodule,while
the +5 V logic voltage required by the measur-
ing relay module is formed by the stabilizer of
the relay module.
1 A slow +8V
+12V
-12V
+24V
Uaux
80...265 V ac & dc
18...80 V dc
Unstabilized logics
voltage
Operation amplifier
voltage
Output relay coil
voltage
Fig. 5.Voltage levels of the power supply module.
AgreenLEDindicatorUauxonthesystemfront
panel is illuminated when the power supply
module is in operation.The supervision of the
voltages supplying the electronics is placed in
the measuring module. If a secondary voltage
deviatesfromitsratedvaluebymorethan25%,
a selfsupervision alarm will be established. An
alarm is also received when the power supply
module is withdrawn from the relay case, or
when the auxiliary power supply to the relay is
interrupted.
There are two versions of power supply and
output relay modules available. For both types,
the secondary sides and the relay configura-
tions are identical, but the input voltage ranges
differ.
Insulationtestvoltagebetweentheprimary and
secondary side and the protective earth
2 kV, 50 Hz, 1 min
Rated power Pn5 W
Voltage ranges of the power supply modules:
- SPTU 240 R1 Uaux = 80...265 V dc/ac
- SPTU 48 R1 Uaux = 18...80 V dc
(on request )
TheSPTU240R1modulecanbeusedwithboth
acand dc voltages.SPTU48 R1 is designedfor
dc supply only. The system front panel of the
relayindicatestheauxiliaryvoltagerangeofthe
power supply module of the relay assembly.

10
Technical data Energizing inputs
Rated current In
Overcurrent unit 1 A 5 A
Earth-fault unit 0.2 A 1 A
Thermal withstand capability
- continuously 2 A 4 A 20 A
- for 1 s 50 A 100 A 500 A
Dynamic current withstand, half-wave value 100 A 250 A 1250 A
Input impedance <750 mΩ<100 mΩ<20 mΩ
Rated frequency fn50 Hz
Rated frequency on request 60 Hz
Output contact ratings
Tripping contacts
Terminals 65-66, 74-75
- Rated voltage 250 V dc/ac
- Carry continuously 5 A
- Make and carry for 0.5 s 30 A
- Make and carry for 3.0 s 15 A
- Breaking capacity for dc, when the control circuit
time-constant L/R < 40 ms, at 48 / 110 / 220 V dc 5 A / 3 A / 1 A
Contact material AgCdO2
Signalling contacts
Terminals 70-71-72, 68-69, 77-78, 80-81
- Rated voltage 250 V dc/ac
- Rated current 5 A
- Make and carry for 0.5 s 10 A
- Make and carry for 3.0 s 8 A
- Breaking capacity for dc, when the control circuit
time-constant L/R < 40 ms, at 48 / 110 / 220 V dc
control circuit voltage 1 A / 0.25 A / 0.15 A
Contact material AgCdO2
External control inputs
Blocking, remote reset or remote setting input 10-11
External control voltage level 18...265 V dc or 80...265 V ac
Typical control current of input circuit 2…20 mA
Power supply and output relay module
Supply and relay module, type SPTU 240 R1 80...265 V dc/ac
Supply and relay module, type SPTU 48 R1 18...80 V dc (on request)
Power consumption under quiescent/
operating conditions 4 W/ 6 W

11
Overcurrent unit of SPCJ 4D24
Low-set overcurrent stage I>
Setting range 0.5...5.0 x In
Selectable modes of operation
- definite time operation
- operating time t> 0.05...300 s
- inverse definite minimum time (IDMT) mode
of operation as per IEC 255-4 and BS 142 Extremely inverse
Very inverse
Normal inverse
Long-time inverse
- special type inverse characteristics RI-type inverse
RXIDG-type inverse
- time multiplier k 0.05...1.0
High-set overcurrent stage I>>
Setting range 0.5...40 x Inand ∞
Operating time t>> 0.04...300 s
Note!
If the setting is higher than 2.5 x In, the maximum continuous carry (4 x In) and the levelling out
of the IDMT-curves at high current levels must be noted.
Note!
The high-current end of any inverse time characteristic is determined by the high-set stage which,
whenstarted,inhibitsthelow-setstageoperation.The triptimeisthusequaltothe set t>>forany
current higher than I>>. In order to get a trip signal, the stage I>> must also of course be linked to
a trip output relay.
Earth-fault unit of SPCJ 4D24
Low-set neutral overcurrent stage I0>
Setting range 1.0...25.0 % In
Selectable modes of operation
- definite time operation
- operating time t0> 0.05...300 s
High-set neutral overcurrent stage I0>>
Setting range 2...200 % Inand ∞
Operating time t0>> 0.05... 300 s
Data transmission
Transmission mode Fibre optic serial bus
Data code ASCII
Selectable data transfer rates 4800 or 9600 Bd
Fibre optic bus connection modules
with integral power unit
- for plastic core cables SPA-ZC 17 BB
- for glass fibre cables SPA-ZC 17 MM
Fibre optic bus connection modules
which are powered from the host relay
- for plastic core cables SPA-ZC 21 BB
- for glass fibre cables SPA-ZC 21 MM

12
Test voltages *)
Dielectric test voltage (IEC 255-5) 2 kV, 50 Hz, 1 min
Impulse test voltage (IEC 255-5) 5 kV, 1.2/50 µs, 0.5 J
Insulation resistance (IEC 255-5) >100 MΩ, 500 V dc
Disturbance tests *)
High-frequency (1 MHz) disturbance test
(IEC 255-22-1)
- common mode 2.5 kV
- differential mode 1.0 kV
Electrostatic discharge test (IEC 255-22-2
and IEC 801-2), class III
- air discharge 8 kV
- contact discharge 6 kV
Fast (5/50 ns) transients
- IEC 255-22-4, class III
- IEC 801-4, level IV:
power supply inputs 4 kV
other inputs 2 kV
Environmental conditions
Specified ambient service temperature range -10...+55°C
Long term damp heat withstand according
to IEC 68-2-3 < 95 % at 40°C for 56 d
Transport and storage temperature range -40...+70°C
Degree of protection by enclosure of the relay case
as per IEC 529 when panel mounted IP 54
Mass of the relay, when flush mounted 3.5 kg
*)The tests do not apply to the serial port, which is used for the bus connection module only.

13
Maintenance
and repair When the protective relay is operating under
theconditions specified inthesection "Techni-
cal data", the relay is practically maintenance-
free.Therelaymodulesincludenopartsorcom-
ponentssubjecttoanabnormalphysicalorelec-
trical wear under normal operating conditions.
If the environmental conditions at the relay
operating site differ from those specified, as to
temperature, humidity, or if the atmosphere
aroundtherelaycontainschemicallyactivegases
or dust, the relay ought to be visually inspected
in association with the relay secondary test or
whenevertherelaymodulesarewithdrawnfrom
the case. At the visual inspection the following
things should be noted:
- Signsofmechanicaldamageonrelaymodules,
contacts and relay case
- Accumulation of dust inside the relay cover
or case; remove by blowing air carefully
- Rustspotsorsigns oferugoonterminals,case
or inside the relay
Onrequest,therelaycanbegivenaspecialtreat-
ment for the protection of the printed circuit
boards against stress on materials, caused by
abnormal environmental conditions.
If the relay fails in operation or if the operating
values remarkably differ from those of the relay
specifications,therelayshouldbegivenaproper
overhaul. Minormeasurescanbetakenbyper-
sonnel from the instrument work-shop of the
customer's company, e.g. replacement of auxil-
iary relay modules. All major measures involv-
ing overhaul of the electronics are to be taken
by the manufacturer. Please contact the manu-
facturer or his nearest representative for further
information about checking, overhaul and
recalibration of the relay.
Note!
Static protective relays are measuring instru-
mentsandshouldbehandledwithcareandpro-
tected against moisture and mechanical stress,
especially during transport.
Spare parts Three-phase overcurrent and earth-fault module SPCJ 4D24
Power supply and output relay module
Uaux = 80...265 V ac/dc SPTU 240 R1
Uaux = 18...80 V dc SPTU 48 R1
Input module SPTE 4E2
Bus connection module SPA-ZC 17__ or SPA-ZC 21__

14
Dimensions for
mounting Therelayishousedinanormallyflush-mounted
case. The relay can also be arranged for semi-
flushmountingwiththeuseofa40mm,80mm
or 120 mm raising frame, which reduces the
depthbehindthepanelbythesamedimension.
The type designations of the raising frames are
SPA-ZX111forthe40mmframe,SPA-ZX112
for the 80 mm frame and SPA-ZX 113 for the
120 mm frame. A surface mounting case SPA-
ZX 110 is also available.
Therelaycaseismadeofprofilealuminiumand
finished in beige.
A cast aluminium alloy mounting frame with a
rubber gasket provides a degree of protection
by enclosure to IP 54 between the relay case
and the panel surface when the relay is panel
mounted.
The relay case is complete with a hinged
gasketed, clear, UV-stabilized polycarbonate
cover with a sealable fastening screw. The de-
gree of protection by enclosure of the cover is
also IP 54.
A terminal strip and two multipole connectors
are mounted on the back of the relay case to
facilitate all input and output connections. To
eachheavy duty terminal, i.e. measuringinput,
power supply or trip output, one 6 mm2, one
4 mm2or one or two 2.5 mm2 wires can be
connected. No terminal lugs are needed. The
signallingoutputsareavailableonasixpolede-
tachable connector and the serial bus connec-
tion is using a 9-pin D-type connector.
Raising frame
SPA-ZX 111
SPA-ZX 112
SPA-ZX 113
176
136
96
74
114
154
ab
ab
Panel cut-out
129 ±1
139 ±1
142
162
136
30 34
250
186
216

15
Ordering
information When ordering, please, state:
Example
1. Type designation SPAJ 141 C
2. Rated frequency fn= 50 Hz
3. Auxiliary supply Uaux = 110 V dc
4. Ordering number RS 611 007 - AA
5. Accessories
- Bus connection module SPA-ZC 21 BB
- Fibre-optic cable SPA-ZF AA5, 2 pces
- Fibre-optic cable SPA-ZF AA20, 5 pces
Ordering numbers for SPAJ 141 C
Type designation Name Order number
SPAJ 141 C Combined overcurrent and RS 611 007 - AA, -CA, -DA, -FA
earth-fault relay
SPAJ 141 C Combined overcurrent and RS 611 207 - AA, -CA, -DA, -FA
+ RTXP 18 earth-fault relay including a test
socket RTXP 18 mounted on
bars and prewired to the relay
The two last letters of the ordering number designate the rated frequency fnand
the range of the auxiliary voltage Uaux of the relay as follows:
AA equals fn= 50 Hz and Uaux = 80…265 V ac/dc
CA equals fn= 50 Hz and Uaux = 18…80 V dc
DA equals fn= 60 Hz and Uaux = 80…265 V ac/dc
FA equals fn= 60 Hz and Uaux = 18…80 V dc

ABB Transmit Oy
Relays and Network Control
P.O.Box 699
FIN-65101 VAASA
Finland
Tel. [phone]
Fax. [phone]
1MRS 750872-MUM EN
Communications
Services
Meter & Load
Management
Information
Management
Network
Management
Station
Automation
Panorama is the standard for a comprehensive range
of integrated solutions for efficient and reliable
management of power networks. Using innovative
information technology, Panorama delivers total control
of the power process, from generation to consumption.
The Panorama standard covers six application areas,
each offering specific solutions.

User´s manual and
Technical description General characteristics
of D type relay modules
SGR
SGB
SGF
SPCJ 4D29
TRIP
PROGRAM
RESET
STEP
L1 L2 L3 o
IRF
3>
I
I
II
I
>n
II
/
ks
>
t
[]
n
>>
II
/
s
>>
[]
t
s
o>
ko
[]
t
n
o>
II
/
s
>>
o
t
[]
n
>>
o
I
/
I
879B
I
Relay symbol
Self-supervision alarm indicator
(Internal Relay Fault)
Display, 1 + 3 digits
Reset / Step push-button
Programming push-button
Trip indicator
Module type designation
Fastening screw
Indicators for measured quantities
Indicators for setting parameters
Indicators for switchgroups SGF, SGB
and SGR
Fastening screw
ABB Substation Automation Products and Systems

2
General characteristics
of D type relay modules
Contents Front panel lay-out ......................................................................................................... 1
Control push buttons ..................................................................................................... 3
Display ........................................................................................................................... 3
Display main menu ................................................................................................... 3
Display submenus ..................................................................................................... 3
Selector switchgroups SGF, SGB, SGR .......................................................................... 4
Settings........................................................................................................................... 4
Setting mode ............................................................................................................. 4
Example 1: Setting of relay operation values.............................................................. 7
Example 2: Setting of relay switchgroups................................................................... 9
Recorded information................................................................................................... 11
Trip test function ......................................................................................................... 12
Example 3: Forced activation of outputs ................................................................. 13
Operation indicators..................................................................................................... 15
Fault codes.................................................................................................................... 15
1MRS 750066-MUM EN
Issued 95-04-12
Version A (replaces 34 SPC 3 EN1)
Checked JH
Approved TK
Data subject to change without notice

3
Control
push-buttons The front panel of the relay module contains
two push buttons. The RESET / STEP push
buttonisusedforresettingoperationindicators
and for stepping forward or backward in the
display main menu or submenus. The PRO-
GRAM push button is used for moving from a
certain position in the main menu to the corre-
sponding submenu, for entering the setting
mode of a certain parameter and together with
theSTEPpushbuttonforstoringthesetvalues.
The different operations are described in the
subsequent paragraphs in this manual.
Display The measured and set values and the recorded
data are shown on the display of the protection
relaymodule.Thedisplayconsistsoffourdigits.
The three green digits to the right show the
measured,setorrecordedvalueandtheleftmost
reddigitshowsthecodenumberoftheregister.
Themeasuredorsetvaluedisplayedisindicated
by the adjacent yellow LED indicator on the
frontpanel.Whenarecordedfaultvalueisbeing
displayedthereddigitshowsthenumberofthe
correspondingregister.Whenthe display func-
tions as an operation indicator the red digit
alone is shown.
Whentheauxiliaryvoltageofaprotectionrelay
moduleisswitchedonthemoduleinitiallytests
thedisplaybysteppingthroughallthesegments
of the display for about 15 seconds. At first the
corresponding segments of all digits are lit one
byoneclockwise,includingthedecimalpoints.
Thenthecentersegmentof each digit is lit one
by one. The complete sequence is carried out
twice.Whenthetestisfinishedthedisplayturns
dark.Thetestingcanbeinterruptedbypressing
the STEP push button. The protection func-
tionsoftherelay modulearealertedthroughout
the testing.
Display main menu Any data required during normal operation are
accessible in the main menu i.e. present meas-
uredvalues,presentsettingvaluesandrecorded
parameter values.
The data to be shown in the main menu are
sequentially called up for display by means of
the STEP push button. When the STEP push
button is pressed for about one second, the
display moves forward in the display sequence.
When the push button is pressed for about 0.5
seconds, the display moves backward in the
display sequence.
From a dark display only forward movement is
possible.WhentheSTEPpushbuttonispushed
constantly,thedisplaycontinuouslymovesfor-
ward stopping for a while in the dark position.
Unlessthedisplayisswitchedoffbysteppingto
thedarkpoint,itremainslitforabout5minutes
from the moment the STEP push button was
last pushed. After the 5 minutes' time-out the
dispaly is switched off.
Display submenus Lessimportantvalues and valuesnotvery often
setaredisplayed in thesubmenus.The number
of submenus varies with different relay module
types. The submenus are presented in the de-
scription of the concerned protection relay
module.
A submenu is entered from the main menu by
pressingthePROGRAMpushbuttonforabout
one second. When the push button is released,
the red digit of the display starts flashing, indi-
catingthat a submenu has beenentered. Going
from one submenu to another or back to the
main menu follows the same principle as when
movingfromthemainmenudisplaytoanother;
thedisplaymovesforwardwhentheSTEPpush
button is pushed for one second and backward
when it is pushed for 0.5 seconds. The main
menu has been re-entered when the red display
turns dark.
Whena submenu isenteredfrom a mainmenu
of a measured or set value indicated by a LED
indicator, the indicator remains lit and the ad-
dress window of the display starts flashing. A
submenu position is indicated by a flashing red
address number alone on the dispaly without
any lit set value LED indicator on the front
panel.

4
Selector switch-
groups SGF, SGB
and SGR
Part of the settings and the selections of the
operation characteristic of the relay modules in
various applications are made with the selector
switchgroups SG_ . The switchgroups are soft-
ware based and thus not physically to be found
in the hardware of the relay module. The indi-
catoroftheswitchgroupislitwhenthechecksum
of the switchgroup is shown on the display.
Starting from the displayed checksum and by
entering the setting mode, the switches can be
set one by one as if they were real physical
switches. At the end of the setting procedure, a
checksum for the whole switchgroup is shown.
Thechecksumcanbeusedforverifyingthatthe
switcheshavebeenproperlyset. Fig.2showsan
example of a manual checksum calculation.
Whenthechecksumcalculatedaccordingtothe
exampleequals the checksumindicatedonthe
display of the relay module, the switches in the
concerned switchgroup are properly set.
Switch No Pos. Weigth Value
11x1=1
20x2=0
31x4=4
41x8=8
51x16=16
60x32=0
71x64=64
8 0 x 128 = 0
Checksum ∑=93
Fig. 2. Example of calculating the checksum of
a selector switchgroup SG_.
The functions of the selector switches of the
differentprotectionrelaymodulesaredescribed
in detail in the manuals of the different relay
modules.
Settings Mostofthestartvaluesandoperatetimesareset
bymeansof thedisplayandthepushbuttonson
the front panel of the relay modules. Each
settinghasitsrelatedindicatorwhichislitwhen
the concerned setting value is shown on the
display.
In addition to the main stack of setting values
mostDtyperelaymodulesallowa secondstack
ofsettings.Switchingbetweenthemainsettings
and the second settings can be done in three
different ways:
1)BycommandV150overtheserialcommuni-
cation bus
2) By an external control signal BS1, BS2 or
RRES (BS3)
3)Viathepush-buttonsoftherelaymodule,see
submenu 4 of register A.
Setting mode Generally,whenalargenumberofsettingsisto
be altered, e.g. during commissioning of relay
systems, it is recommended that the relay set-
tings are entered with the keyboard of a
personal computer provided with the necessary
software. When no computer nor software is
availableorwhenonlyafewsettingvaluesneed
to be altered the procedure described below is
used.
Theregistersofthemainmenuandthesubmenus
contain all parameters that can be set. The
settings are made in the so called setting mode,
which is accessible from the main menu or a
submenu by pressing the PROGRAM push
button, until the whole display starts flashing.
This position indicates the value of the param-
eter before it has been altered. By pressing the
PROGRAMpushbuttontheprogramming se-
quence moves forward one step. First the
rightmost digit starts flashing while the rest of
the display is steady. The flashing digit is set by
means of the STEP push button. The flashing
cursor is moved on from digit to digit by press-
ing the PROGRAM push button and in each
stop the setting is performed with the STEP
push button. After the parameter values have
beenset,thedecimalpointisputinplace. Atthe
endthepositionwiththewholedisplayflashing
is reached again and the data is ready to be
stored.
A set value is recorded in the memory by press-
ing the push buttons STEP and PROGRAM
simultaneously. Until the new value has been
recorded a return from the setting mode will
have no effect on the setting and the former
valuewillstillbevalid.Furthermore anyattempt
tomakeasettingoutsidethepermittedlimitsfor a
particularparameterwillcausethenewvaluetobe
disqualified and the former value will be main-
tained. Return from the setting mode to the
mainmenuorasubmenuispossiblebypressing
the PROGRAM push button until the green
digits on the display stop flashing.