Generator Control
Basic Generator Protection
T5000 SERIES
Paralleling Relay
Description
The T5000 Paralleling Relay is a check synchronizer, inhibiting
closure of circuit breaker if synchronizing parameters such as
voltage, frequency and phase angle are outside limits, thus
preventing generator damage and disturbance to the busbar.
The T5000 can also be used as synchronizing aid for manual
or automatic synchronization where voltage and frequency
are adjusted by the operator to roughly the values required,
and the unit will provide a closing signal to the circuit breaker
at phase accordance.
Automatic closure
In order to use the T5000 with automatic closure, terminals
19 and 20 should be interconnected, and the T5000 will now
operate as illustrated in graph at left.
Line I shows the closing signal directly from the T5000.
Simplified Circuit Diagram
L1
L2
L3
Line II shows the main contact closure with an additional
circuit breaker operation time of 50 msec.
1
2
3
Features & Benefits
6
T5000
(Paralleling Relay)
FEATURES
Visual indication of
voltage and closing signal
0. 5 Hz
1
BENEFITS
Provides quick and concise status information
Facilitates adjustment during installation and
commissioning
Enables use with fast reacting circuit breakers
Protects the unit against high AC voltage and
currents from the installation including spikes
Easy installation
Monitors neutral-to-ground integrity and alarms
if ground path becomes open circuit
Eliminates nuisance tripping
5
6
7
9
19 20
CLOSING
SIGNAL
AUTOMATIC CLOSURE
4
2
0
2
4
6
+ 50 msec.
Adjustable combined
setting, %U, of
synchronizing window
(delta frequency, delta voltage,
delta phase)
Automatic
closure function
Galvanic isolated inputs
DIN rail or screw-mount
10
Ordering Information
ORDERING
NUMBER
TERMINALS
1-1
1-3
5-7
6-7
FUNCTION
N-G continuity alarm
Passive filtering
T5000.0010
T5000.0020
T5000.0030
T5000.0040
T5000.0050
T5000.0060
T5000.0070
T5000.0080
T5000.0090
T5000.0100
450 V
230 V
480 V
110 V
127 V
480 V
450 V
110 V
450 V
660 V
400 V
415 V
100 V
120 V
415 V
400 V
100 V
400 V
Specifications
Max. Voltage
Voltage Range
Consumption
Frequency Range
Voltage Difference
Frequency Difference
Phase Difference
Contact rating
Operating Temperature
Dielectric Test
EMC
Approvals
Burn-in
Enclosure Material
Weight
Dimensions
Installation
660 V
70-110%
2 x 5 VA max.
45-65 Hz
10-15%
0.15 - 0.225 Hz
Combined setting
6-9°
AC: 400 V, 5 A, 1250 VA; DC: 150 V, 5 A, 120 W
–20°C to +70°C
2500 V, 50 Hz
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
0.7 kg
H
70 mm (2.7“);
W
100 mm (3.9“);
D
115 mm (4.5“)
35 mm DIN rail or 4 mm (
3
/
16
”) screws
D f
=9-13.5°,
D
F=0.2-0.3 Hz
D
U=15-20%,
D f
=9-13.5°,
D
F=0.2-0.3 Hz
D
U=15-20%,
D f
=9-13.5°,
D
F=0.2-0.3n Hz
D f
=9-13.5°,
D
F=0.2-0.3 Hz
}
Other supply voltages, nominal currents and combinations are available on request.
© 2014 Littelfuse Protection Relays & Controls
www.littelfuse.com/t5000
Rev: 4-B-111014
