Startco Engineering Ltd. Page 28
FPU-16 Feeder Protection Unit Rev. 1
Pub. FPU-16-M, November, 1997 Downloaded from the Internet, see Disclaimer.
4.4.1 ICT-2 INTERCONNECTION CABLE
Connect the FPU-16 to the ICT-2 with the interconnection cable supplied. See
Figures 11 and 12. Prepare the shielded-conductor groups as outlined in
Section 4.3. The following colour code is recommended:
A
B
C
COM
Black
White
Red
Green
Shielded-Group 1
EF(1,2) Blue
Brown
Shielded-Group 2
Ground the cable shields at the FPU-16 only.
4.4.2 POWER SUPPLY
The FPU-16 power supply is protected by a time-delay fuse, F3, which is
externally accessible only on units with SW, D1, D2, and D4 power supplies.
SW units are supplied with fuses for 120-Vac operation. D1, D2, and D4 units
are fused for 12, 24, and 48 Vdc operation respectively. All other units are
internally fused for the supply indicated on the FPU-16 nameplate. See Section
6 for recommended F3 fuses.
Derive supply voltage from the line side of the breaker or from an independent
source. Connect supply voltage to terminals 1 and 3 (L1 and L2) as shown in
Figure 9. In 120-Vac systems, L2 is usually designated as the neutral
conductor. Direct-current power supplies use L1 for the positive terminal and L2
for the negative terminal. Ground terminal 8.
4.4.3 TRIP-RELAY CONTACTS
A set of Form C relay contacts are provided for use in a control circuit. These
contacts are designated TRIP and are available at terminals 5, 6, and 7. The trip
contacts are rated 8 A resistive at 250 Vac and are protected by an 8-A fuse, F1.
The trip relay is shown de-energized.
4.4.4 ALARM-RELAY CONTACTS
A set of Form C relay contacts are provided for use in an indication or
supervisory-control circuit. These contacts are designated ALARM and are
available at terminals 10, 11, and 12. The alarm contacts are rated 8 A resistive
at 250 Vac and are protected by an 8-A fuse, F2. The alarm relay is shown
de-energized.
NOTE: USE No. 14 AWG CONDUCTORS FOR SUPPLY VOLTAGE AND
OUTPUT RELAY CONNECTIONS.
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