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Protection
and control
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Sepam range
Sepam 100 RT
n
Merlin Gerin
n
Square D
n
Telemecanique
presentation
contents
page
presentation
2
connection
4
characteristics
6
installation
7
ordering information
8
description
Sepam 100
is a group of modules that may
be used:
n
individually to perform a function,
n
in combination with
Sepam 1000
or 2000.
Each module has been designed to perform
a complete function. It includes all the
elements required, such as:
n
The front of
Sepam 100 RT
includes:
n
7 indicator lamps:
n
device "on" indicator,
n
"In3" to "In5" indicators: electrically
latched indicators which store the activated
status of each of the 3 'tripping" inputs,
n
"In1" and "In2" indicators: electrically
latched indicators which store the activated
status of the 2 "alarm" inputs and indicate
the status of the "alarm 1" and "alarm 2"
output relays,
n
"out" indicators: latching indicator which
shows switching of the "tripping" output
relay.
n
a "reset" pushbutton: for acknowledgment
of the relay outputs and associated display
when the inputs return to their normal
position.
While activated, this pushbutton may be
used for a lamp test of the indicators on the
front of the device .
The back of
Sepam 100 RT
includes:
n
input/output connectors:
n
a 21-pin connector for the "alarm" inputs
and outputs,
n
an 8-pin connector for the "tripping"
output and for the power supply,
n
a 4-pin connector for the "power ON"
output.
Sepam 100 RT
has:
n
5 common-point logic inputs, named "In1"
to "In5" ,
n
an isolated remote "reset" input,
n
a 3-contact "tripping" output relay (2
normally open contacts and 1 normally
closed contact),
n
2 "alarm" relays (changeover contacts),
n
a "power ON" relay (1 normally open
contact and 1 normally closed contact).
Sepam 100 RT
operates in 3 ranges of
supply voltage (please specify when
ordering):
n
tripping output relays,
n
annunciation,
n
connections.
applications
Sepam 100 RT
Specially designed for transformer
protection applications, offering a
combination of DGPT2 or Buchholz plus
thermostat information.
advantages
Simple to use:
n
three "tripping" inputs,
n
two "alarm" inputs with the possibility of
individual "tripping" input parameter setting,
n
electrically latched inputs,
n
a "tripping" output with high breaking
capacity linked with two other outputs:
"inhibit closing" and "annunciation",
n
two "alarm signal" outputs linked with the
two "alarm" inputs,
n
local or remote acknowledgment,
n
integrated "lamp test".
Sepam 100 RT.
on
Clear information
n
display of "tripping" input and output
status on the front of the device.
in1
in2
Dependable operation
n
high level of immunity to electromagnetic
disturbances:
Sepam 100 RT
is designed
to operate safely in the highly disturbed
electromagnetic environments of HT
substations.
in3
in4
in5
out
24-30 V DC
20%,
±
48-125 V DC
20%,
±
n
220-250 V DC -20% +10%.
n
reset
sepam 100
S01 RT
Front of device with display and control
of acknowledgement/lamp test.
.
2
parameter setting
The parameters of the 2 "alarm" inputs
made be set so as to make them "tripping"
inputs.
"Alarm" inputs In1 and In2 may be set
individually as "tripping" inputs.
The choice is made via two microswitches
that are accessible on the left-hand side of
Sepam 100 RT
.
Access to the microswitches is closed off
by a removable plastic cover.
The plastic cover should be replaced after
the setting has been made.
Access to and identification of
microswitches SA-1 and SA-2.
SA-2
SA-1
Parameter setting
"Alarm" position.
Move the microswitch tab to the left.
"Tripping" position
Move the microswitch tab to the right.
functional and connection
diagram
0
A
3
4
2
1
7
8
6
5
alarm 1
output
O4
0 A
10
com
11
alarm 2
output
In1
O5
S
R
1
SA - 1
In1
12
"alarm"
inputs
In2
S
R
1
SA - 2
In2
13
In3
S
R
1
In3
14
In4
"tripping"
inputs
S
R
1
In4
15
In5
S
R
1
In5
21
1
reset
out
20
1
1A
8
7
6
5
O1
reset PB
tripping
outputs
O2
4
3
O3
1
A
1
+
aux.
sup.
on
1
B
2
-
4
3
2
1
power
on
output
O6
3
connection
Sepam 100 RT
1 A 8-pin CCA 608 connector (power
supply and "tripping" outputs), screw
terminal wiring with wires 0.6 to 2.5 mm
2
max. Each terminal capable of receiving
two 1.5 mm
2
wires.
1 B CCA 604 connector (power ON),
screw terminal wiring for wires 0.6 to 2.5
mm
2
max. Each terminal capable of
receiving two 1.5 mm
2
wires.
0
A
0 A 21-pin CCA 621 connector ("alarm"
inputs and outputs), screw terminal wiring
with wires 0.6 to 2.5 mm
2
max., each
terminal capable of receiving two 1.5 mm
2
wires.
AS
RT
1
A
A
8
21
7
20
6
19
5
18
4
17
3
16
–
1
A
2
15
0
A
O1
8
7
6
5
21
tripping
+
reset
1
14
20
A
O2
19
13
annunciation
18
12
O3
4
3
17
16
inhibit
closing
aux
supply
11
inputs
10
2
1
15
–
In5
14
9
+
In4
In3
In2
In1
common
13
12
11
10
8
P
7
1
B
6
9
B
5
8
4
4
05
7
alarm 2
output
3
3
6
O6
2
2
5
4
3
2
1
1
B
4
3
2
1
1
1
04
alarm 1
output
B
A
power on
output
Terminal identification
Each terminal is identified by 3 characters.
earthing terminal
1A4
board slot number (0 to 1)
connector identification letter
(A or B)
connector terminal number
4
-C
+C
SEPAM 100 RT
Example of input wiring
(transformer protection)
remote reset
0
21
A
reset
0
20
A
0
15
A
A
A
A
A
A
In 5
thermostat (tripping)
buchholz (tripping)
thermostat (alarm)
buchholz (alarm)
0
14
In 4
0
0
0
0
13
12
11
10
In 3
In 2
In 1
Com
1
1
1
2
A
A
+
-
power
Example of circuit breaker control
output contact wiring
+C
on
off
1
A 3
1 A 7
1 A 5
03
01
02
Sepam 100 RT
1 A 4
1 A 8
1 A 6
M
TRIP
CLOSE
–C
5
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