Operation Indicators - ABB SPAJ 141 C User Manual And Technical Description

Combined overcurrent and earth-fault relay
Table of Contents

Advertisement

Operation
indicators
8
( )
I
n =
1A
5A
I
( )
f
n = 50 / 60 Hz
I
n =
0.2A
1A
I
o
SPAJ 141 C
80...265V ~ –
U
18...80V –
SPCJ 4D24
REGISTERS
OPER.IND.
0 0 0 0
0
1
1
/
>
I
I
I
START
n
L1
2
2
/
>
I
I
I
TRIP
n
L2
3
3
> >
I
/
I
I
START
n
L3
4
4
> >
I
max
/
I
I
TRIP
(15min)
n
5
t
(
>
)
[
]
5
>
I
%
I
o START
6
t
(
> >
)
[
]
6
>
I
%
I
o TRIP
7
[
]
7
> >
I
%
I
I
START
o
n
o
8
t
(
>
)
[
]
8
> >
I
%
I
TRIP
o
o
9
t
(
> >
)
[
]
9
I
%
CBFP
o
RS 611
Ser.No.
Indication
Explanation
1
I> START
2
I> TRIP
3
I>> START = The high-set stage I>> of the overcurrent unit has started
4
I>> TRIP
5
I
> START = The low-set stage I
0
6
I
> TRIP
0
7
I
>> START = The high-set stage I
0
8
I
>> TRIP
0
9
CBFP
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.
3 >
I
I
2
I
I
I
I
IRF
o
L1
L2
L3
5
RESET
I
/
I
>
n
STEP
aux
t [ ]
>
s
k
I
/
I
>>
n
t
[ ]
>>
s
I
[
%
I
]
o >
n
t
[ ]
o >
s
I
[
I
]
>>
%
o
n
t
[ ]
>>
s
o
PROGRAM
SGF
SGB
SGR
TRIP
SPCJ 4D24
= The low-set stage I> of the overcurrent unit has started
= The low-set stage I> of the overcurrent unit has tripped
= The high-set stage I>> of the overcurrent unit has tripped
0
= The low-set stage I
0
= The high-set stage I
= Circuit Breaker Failure Protection has operated
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
> or I
0
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
and I
at the same time are illuminated,
L1
L2
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.
> of the earth-fault unit has started
> of the earth-fault unit has tripped
>> of the earth-fault unit has started
0
>> of the earth-fault unit has tripped
0
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
Switch SGF2/4 = 1
Starting indication on I
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.
>> call for a trip-
0
> persistent
0
>> persistent
0

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents