ABB SPAJ 141 C User Manual And Technical Description

ABB Network Partner

User´s manual and

Technical description

SPAJ 141 C

Combined overcurrent

and earth-fault relay

U

RS 611 Ser.No.

f

n

= 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

>

o

START

>

o

START

>

o

TRIP

>

o

TRIP

2

5

9

%

)(

>

%

)(

>>

()

>

o

%

(

o

)

%

>>

CBFP

9

t

[]

I

0084A

I

(

)

I

(

)

o

I

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

II

I

>

n

I

/

k

s

>

t

[]

n

>

I

/

s

>

[]

t

s

o

>

[]

t

n

o

>

I

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-phase low-set overcurrent unit with defi-

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-set non-directional earth-fault protection

with instantaneous or definite time function.

Built-in breaker failure protection scheme.

Fully field-selectable output relay configuration.

Extensive data communication capabilities over

built-in serial port.

Outstanding design flexibility for easy selection

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

SPAJ 141 C is intended to be used for the selec-

tive short-circuit and earth-fault protection of

radial feeders in resistance earthed or impedance

earthed power systems. The integrated protec-

tive relay comprises both an overcurrent unit and

an earth-fault unit with highly flexible tripping

and signalling facilities. The feeder protection can

be used in applications requiring a single-, two-

or three-phase overcurrent protection and a non-

directional earth-fault protection. The overcur-

rent and earth-fault relay also 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. The three-phase overcurrent unit and

the non-directional earth-fault unit continu-

ously measure the phase currents and the neu-

tral current of the protected feeder. In fault situ-

ations these units initiate external auto-reclose

functions or trip the circuit-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.

The low-set stage of the overcurrent unit may be

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

comply with BS 142 and IEC 255 and are named

normal inverse, very inverse, extremely inverse

and long-time inverse. The two additional curves

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-

rent and non-directional earth-fault modules are

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 auxiliary voltage level. The influence on the

relay by the control input is determined by pro-

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

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

U

aux

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

The three phase-currents of the overcurrent pro-

tection are connected to terminals 1-2, 4-5 and

7-8, when the rated current of the secondary

circuits is I

n

= 5 A. When using current trans-

formers with a rated current of 1 A, terminals

1-3, 4-6 and 7-9 are used. The overcurrent pro-

tection may also be used in single-phase or two-

phase applications, in which case inputs not to

be used are left unconnected. In single-phase

applications, however, wiring the phase current

through two current inputs in series may in-

crease the operating speed 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

rated current is 1 A and to terminals 25-28 when

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-

nal blocking signal for the measuring modules,

as the control input for unlatching the 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.

The auxiliary supply voltage of the relay is con-

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-

plied to the terminals is determined by the type

of power supply and output relay module in-

serted in the protection. For further details see

the description of the power supply module. The

auxiliary voltage range of the relay has been

marked on the front panel.

Output relay A provides the CB tripping com-

mands so that the CB operates once the operat-

ing time of the low-set or high-set stage of the

overcurrent or non-directional earth-fault mod-

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.

The trip alarm signals from the measuring mod-

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-set overcurrent trip alarm signal is obtained

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

relay D are selected by means of switches 1, 3, 5

and 7 of switchgroup SGR1 which is found in

the main menu of the measuring module. The

starting signals of the low-set and high-set stage

of the overcurrent unit are selected with switches

1 and 3, whereas switches 5 and 7 convey the

corresponding signals of the non-directional

earth-fault unit.

Output relay E, terminals 74-75, is a heavy duty

output relay capable of controlling a circuit

breaker, like the main trip relay A. Relay E is

used mainly for bringing out any starting or time

delayed signal for starting of auto-reclosures, for

signalling or counting purposes or for auxiliary

trip. Output relay E is also used as a tripping

output for the circuit breaker failure protection,

CBFP when the CBFP function is used. In this

case the trip signal can be used either to control

a circuit breaker upstreams or to control a sec-

ond trip coil on the main circuit breaker to give

a higher redundancy to the breaker operation.

Output relay F, terminals 70-71-72, operates as

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-

ditions the contact gap 70-72 is closed. If a fault

is detected by the self-supervision system, or if

there is a failure in the auxiliary supply, the out-

put relay drops off providing an alarm signal by

closing the NO contact 71-72.

The relay is interfaced with a data transmission

bus through a 9-pole, D-type subminiature con-

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

terminals of the fibre-optic cables are connected

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

the starting, tripping, control and 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

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

the switchgroups, are found in the setting menu

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

I

L1

, I

L2

, I

L3

Phase currents to be measured

I

0

Neutral 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>>, I

0

> or I

0

>> 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

I

L1

and I

L2

at the same time are illuminated,

overcurrent has occurred on phase L1 and L2.

C) Besides being a code number at data presen-

tation, the leftmost red digit or the display serves

as a visual opetarion indicator. An operation in-

dicator is recognized by the fact that the red digit

alone is switched on. The following table named

OPERATION IND. on the relay front panel is

a key to the function code numbers used.

U

RS 611 Ser.No.

f

n

= 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

>

o

START

>

o

START

>

o

TRIP

>

o

TRIP

2

5

9

%

)(

>

%

)(

>>

()

>

o

%

(

o

)

%

>>

CBFP

9

t

[]

I

0084A

I

(

)

I

(

)

o

I

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

II

I

>

n

I

/

k

s

>

t

[]

n

>

I

/

s

>

[]

t

s

o

>

[]

t

n

o

>

I

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 I

0

> of the earth-fault unit has started

6I

0

> TRIP = The low-set stage I

0

> of the earth-fault unit has tripped

7I

0

>> START = The high-set stage I

0

>> of the earth-fault unit has started

8I

0

>> TRIP = The high-set stage I

0

>> of the earth-fault unit has tripped

9 CBFP = Circuit Breaker Failure Protection has operated

D) The TRIP indications persist when the pro-

tective stage returns to normal. 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, reset or non-reset. The relay is permanently

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

automatically switched off. However, by means

of the switches SGF2/1…4 the starting indica-

tions may be made persistant which means that

they are to be reset by pushing the RESET/

STEP push-button.

The persistent indications are obtained through

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 I

0

> persistent

Switch SGF2/4 = 1

Starting indication on I

0

>> persistent

On delivery from the factory the switches SGF2/

1…4 have the preset configuration 0.

E) Shortly after the internal self-supervision sys-

tem has detected a permanent relay fault the

red IRF indicator is switched on and the output

relay of the self-supervision system operates. Fur-

ther, in most fault situations a autodiagnostic

fault code is shown in the display. The fault code

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

appears on the display, the code number should

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

auxiliary voltage supply. The power supply mod-

ule forms the voltages required by the measur-

ing relay module and the auxiliary relays. The

withdrawable power supply and output relay

module is located behind the system front panel,

which is fixed by means of form cross-slotted

screws. The power supply and output relay

module contains the power supply unit, all out-

put relays, the control circuits of the output re-

lays and the electronic circuitry of the external

control inputs.

The power supply and output relay module can

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

secondary side, flyback-type dc/dc converter. It

forms the dc secondary voltages required by the

measuring relay module; that is +24 V, ±12 V

and +8 V. The output voltages ±12 V and +24 V

are stabilized in the power supply module, 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.

A green LED indicator U

aux

on the system front

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

deviates from its rated value by more than 25 %,

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.

Insulation test voltage between the primary and

secondary side and the protective earth

2 kV, 50 Hz, 1 min

Rated power P

n

5 W

Voltage ranges of the power supply modules:

- SPTU 240 R1 U

aux

= 80...265 V dc/ac

- SPTU 48 R1 U

aux

= 18...80 V dc

(on request )

The SPTU 240 R1 module can be used with both

ac and dc voltages. SPTU 48 R1 is designed for

dc supply only. The system front panel of the

relay indicates the auxiliary voltage range of the

power supply module of the relay assembly.

10

Technical data Energizing inputs

Rated current I

n

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 f

n

50 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 AgCdO

2

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 AgCdO

2

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 I

n

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 I

n

and ∞

Operating time t>> 0.04...300 s

Note!

If the setting is higher than 2.5 x I

n

, the maximum continuous carry (4 x I

n

) 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,

when started, inhibits the low-set stage operation. The trip time is thus equal to the set t>> for any

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 I

0

>

Setting range 1.0...25.0 % I

n

Selectable modes of operation

- definite time operation

- operating time t

0

> 0.05...300 s

High-set neutral overcurrent stage I

0

>>

Setting range 2...200 % I

n

and ∞

Operating time t

0

>> 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

the conditions specified in the section "Techni-

cal data", the relay is practically maintenance-

free. The relay modules include no parts or com-

ponents subject to an abnormal physical or elec-

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

around the relay contains chemically active gases

or dust, the relay ought to be visually inspected

in association with the relay secondary test or

whenever the relay modules are withdrawn from

the case. At the visual inspection the following

things should be noted:

- Signs of mechanical damage on relay modules,

contacts and relay case

- Accumulation of dust inside the relay cover

or case; remove by blowing air carefully

- Rust spots or signs of erugo on terminals, case

or inside the relay

On request, the relay can be given a special treat-

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, the relay should be given a proper

overhaul. Minor measures can be taken by per-

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-

ments and should be handled with care and pro-

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

U

aux

= 80...265 V ac/dc SPTU 240 R1

U

aux

= 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

The relay is housed in a normally flush-mounted

case. The relay can also be arranged for semi-

flush mounting with the use of a 40 mm, 80 mm

or 120 mm raising frame, which reduces the

depth behind the panel by the same dimension.

The type designations of the raising frames are

SPA-ZX 111 for the 40 mm frame, SPA-ZX 112

for the 80 mm frame and SPA-ZX 113 for the

120 mm frame. A surface mounting case SPA-

ZX 110 is also available.

The relay case is made of profile aluminium and

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

each heavy duty terminal, i.e. measuring input,

power supply or trip output, one 6 mm

2

, one

4 mm

2

or one or two 2.5 mm

2

wires can be

connected. No terminal lugs are needed. The

signalling outputs are available on a six pole de-

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

a

b

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 f

n

= 50 Hz

3. Auxiliary supply U

aux

= 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 f

n

and

the range of the auxiliary voltage U

aux

of the relay as follows:

AA equals f

n

= 50 Hz and U

aux

= 80…265 V ac/dc

CA equals f

n

= 50 Hz and U

aux

= 18…80 V dc

DA equals f

n

= 60 Hz and U

aux

= 80…265 V ac/dc

FA equals f

n

= 60 Hz and U

aux

= 18…80 V dc

ABB Transmit Oy

Relays and Network Control

P.O.Box 699

FIN-65101 VAASA

Finland

Tel. +358 (0)10 22 4000

Fax. +358 (0)10 22 41094

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

II

I

>

n

I

/

k

s

>

t

[]

n

>

I

/

s

>

[]

t

s

o

>

k

o

[]

t

n

o

>

I

/

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

button is used for resetting operation indicators

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

the STEP push button for storing the set values.

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

relay module. The display consists of four digits.

The three green digits to the right show the

measured, set or recorded value and the leftmost

red digit shows the code number of the register.

The measured or set value displayed is indicated

by the adjacent yellow LED indicator on the

front panel. When a recorded fault value is being

displayed the red digit shows the number of the

corresponding register. When the display func-

tions as an operation indicator the red digit

alone is shown.

When the auxiliary voltage of a protection relay

module is switched on the module initially tests

the display by stepping through all the segments

of the display for about 15 seconds. At first the

corresponding segments of all digits are lit one

by one clockwise, including the decimal points.

Then the center segment of each digit is lit one

by one. The complete sequence is carried out

twice. When the test is finished the display turns

dark. The testing can be interrupted by pressing

the STEP push button. The protection func-

tions of the relay module are alerted throughout

the testing.

Display main menu Any data required during normal operation are

accessible in the main menu i.e. present meas-

ured values, present setting values and recorded

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. When the STEP push button is pushed

constantly, the display continuously moves for-

ward stopping for a while in the dark position.

Unless the display is switched off by stepping to

the dark point, it remains lit for about 5 minutes

from the moment the STEP push button was

last pushed. After the 5 minutes' time-out the

dispaly is switched off.

Display submenus Less important values and values not very often

set are displayed in the submenus. 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

pressing the PROGRAM push button for about

one second. When the push button is released,

the red digit of the display starts flashing, indi-

cating that a submenu has been entered. Going

from one submenu to another or back to the

main menu follows the same principle as when

moving from the main menu display to another;

the display moves forward when the STEP push

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.

When a submenu is entered from a main menu

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-

cator of the switchgroup is lit when the checksum

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.

The checksum can be used for verifying that the

switches have been properly set. Fig. 2 shows an

example of a manual checksum calculation.

When the checksum calculated according to the

example equals the checksum indicated on the

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

different protection relay modules are described

in detail in the manuals of the different relay

modules.

Settings

Most of the start values and operate times are set

by means of the display and the push buttons on

the front panel of the relay modules. Each

setting has its related indicator which is lit when

the concerned setting value is shown on the

display.

In addition to the main stack of setting values

most D type relay modules allow a second stack

of settings. Switching between the main settings

and the second settings can be done in three

different ways:

1) By command V150 over the serial communi-

cation bus

2) By an external control signal BS1, BS2 or

RRES (BS3)

3) Via the push-buttons of the relay module, see

submenu 4 of register A.

Setting mode Generally, when a large number of settings is to

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

available or when only a few setting values need

to be altered the procedure described below is

used.

The registers of the main menu and the submenus

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

PROGRAM push button the programming 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

been set, the decimal point is put in place. At the

end the position with the whole display flashing

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

value will still be valid. Furthermore any attempt

to make a setting outside the permitted limits for a

particular parameter will cause the new value to be

disqualified and the former value will be main-

tained. Return from the setting mode to the

main menu or a submenu is possible by pressing

the PROGRAM push button until the green

digits on the display stop flashing.

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ABB SPAJ 141 C User Manual And Technical Description

ABB SPAJ 141 C User Manual And Technical Description

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