T3200 Insulation Monitoring Relay
Double Insulation Monitoring Relay
• Price competitive due to the
combined functions
• Visual indication of power, pick-up
and relay tripping on both relays
• High precision digital countdown
timer for delayed output
• Cost effective and highly reliable
compact design
• 50 hours burn-in before final test
• Operating temperature range:
-20°C to +70°C
• Certified by major marine
classification societies
• Flame retardant enclosure
• DIN rail or screw mounting
Application
The T3200 Insulation Monitoring Relay
is intended for continuous insulation
monitoring on three-phased insulated
networks on board ships.
The T3200 continuously monitors two
systems, galvanically separated from
each other, e.g. the busbar and the
lighting system, or two busbar systems.
The unit features two output relays for
alarm purposes and two analog outputs
for instrument reading. Instruments are
available from SELCO as standard sized
switchboard instruments.
front of the unit. In this way only
continuous earth faults will cause alarm
signals.
The instrument output has been
adapted for connection of a
megaohmmeter which indicates the
actual insulation level, either by means
of two instruments simultaneously
indicating for both insulation systems (I
and II), or by means of one instrument
which can be connected to the two
instrument outputs via a change-over
switch. See connection diagram.
NOTE: The T3200 operates only on AC
installations. Insulation faults in
connection with thyristor controls and
other semiconductor devices can cause
errors in measurements.
Installation
The measuring circuits for the two
insulation systems I and II are
connected to the network as shown on
the connection diagram.
The supply voltage is connected to
terminals 1-3 or 2-3 according to the
supply source.
Function
For each insulation system (I and II) the
electronic measuring circuit will
compare the measured insulation value
to the preset value of the relay. An
insulation drop to a value lower than the
preset value will cause activation of the
corresponding output relay
resulting in alarm signals to be obtained
between terminals 6 and 7 or 9 and 10
(system I or system II respectively).
Consequently, the output relays will be
deactivated when the insulation values
are satisfactory, while insulation values
lower than the preset value will cause
activation of the output relays. This
means that power supply interruptions
will not result in alarm signals as the
output relays normally are deactivated.
The alarm signal can be delayed by
means of a presetting function on the
L1
L2
L3
T3200
1
2
3
SYS.
1
SYS.
2
5
6
7
8
9
10
E2323
+
-
13
15
11
SYS. 1
SYS. 2
COM.
18
INS. 1
19
INS. 2
20
Connection Diagram.
Specifications
T3200 Insulation Monitoring Relay
100
Insulation level
Delay
Max. voltage
Voltage range
0 - 5MW
1 - 10 sec.
660V
80 - 110%
Max. 2VA
45 - 65Hz
15V DC
200kW
0 - 1mA
Max. 100W
Normally de-energized
AC: 400V, 2A, 250VA
DC: 110V, 2A, 100W
±5% of preset value
-20°C to +70°C
2500V, 50Hz
CE according to EN50081-1, EN50082-1, EN50081-2,
EN50082-2
Certified by major marine classification societies
50 hours before final test
Polycarbonate. Flame retardant
0.5kg
70 x 100 x 115mm (H x W x D)
35mm DIN rail or 4mm (3/16”) screws
Fixing holes
2 x ø 4.5 mm
Consumption
Frequency range
Measuring voltage
Internal resistance
Instrument output
Instrument resistance
Output relays
Contact ratings
10
7.5
50
85
115
70
Dimensions in mm
Overall accuracy
Operating temperature
Dielectric test
EMC
Dimensions.
Approvals
Burn-in
Enclosure material
Weight
Dimensions
Installation
Type Approvals and Certificates
The T3200 has been designed and tested
for use in harsh environments. The unit
is based on standard components,
providing long term durability.
The T3200 carries the CE label and has
been approved by the following marine
classification societies:
The specifications are subject to change without notice.
Type Selection Table
Terminals
Type
T3200.0010
T3200.0020
T3200.0030
T3200.0040
T3200.0050
T3200.0060
1-3
230V
450V
480V
24V DC
110V
127V
100V
120V
400V
415V
With 24V DC/DC converter
2-3
Function
Bureau Veritas
Polish Register of Shipping
Romanian Register of Shipping
Russian Maritime Register of Shipping
Other voltages are available on request.
Accessories
E2323.0010 Megaohmmeter
E2324.0010 Kiloohmmeter
E2333.0010 Megaohmmeter
Dimensions
96x96mm
96x96mm
144x144mm
Weight
0.5kg
0.5kg
0.8kg
T3295-62E
Main office:
SELCO A/S
Betonvej 10
DK-4000 Roskilde
Denmark
Phone: + 45 7026 1122
Fax:
+ 45 7026 2522
e-mail: selco.dk@selco.com
www.selco.com
