GE Industrial Solutions GE Zenith Series DPB - Manual (Page 43)

35 Installation & Operation Manual, GE Series DPB Busway
March 25, 2013, Rev 0 GE Confidential
Series DPB Busway Installation & Operation Manual
SAFETY WARNING
CAUTION
ALL VOLTAGE CONNECTIONS MUST BE FUSED!
TAP OFF BOX MONITORING COMPONENTS
Each Tap Off Box is BCMS-equipped (Figure 27)
and interconnected with the Accumulator Board
via the Communications Cable Connection
scheme (Figure 23).
Branch Monitor Sensor Board (intelliBUS): This
board monitors 3- phase current (phases A, B,
C) for each branch circuit. Depending on the
configuration of the system, not all current
sensors may be employed.
Fusing: The Branch Circuit Monitoring system uses
three fuses (one per phase) to protect the voltage
sensing circuits. Fuses are located on the side of
the Tap Off Box (Figure 27) in screw-type safety
fuses holders. Fuses are Type KTK-R rated at 0.5A.
Note that the state of a fuse on the sensing circuit
will not affect the electrical performance of the
Series DPB Bus System™.
COMMUNICATIONS CABLE CONNECTION
The intelliBUS PCB is located inside the Tap Off
Box. Once the Tap Off Box has been secured to the
bus rail, (refer to section Tap Off Box Installation)
insert the communications cable from the Branch
Monitor Connector on the Tap Off Box into the
nearest open connector on the busrail (Figure 28).
Ensure that the barbed connector lock is in place
to maintain connection integrity.
In the event all communication connectors are
utilized where a Tap Off Box is located, longer
cables or connector splitters are available from
the factory. Once energized, the Status LED will
NOT be lighted as it is used for Alarm purposes
only. Note that the source power for the branch
monitor is via the communications cable link.
Fuses
IntelliBUS PCB
Fuses
Communications Cable
Busrail Connector
Tap Off Box
Connector Status LED
Figure 27 - Tap Off Box with Branch Circuit Monitoring Installed
Figure 28 - Tap Off Box Communication Interface Into Series DPB Busrail
Option 1 - TAP OFF BOX MONITORING ONLY