User manual
Maintenance 61
Emerson Energy Systems
MFA150 Power System
NT6C28C User Manual
WARNING
This procedure implies that all or part of the batteries will
be momentarily taken out of service
This work should be completed during reduced traffic
hours or with a diesel generator backup IS available to
ensure no loss of service during a possible AC outage. If
more than one string is to be replaced, replace only one
string at a time and do not disconnect the next string
before the previous one has been reconnected.
WARNING
Generator requirements for Astec APS Power Systems
For information on selecting AC generators that will
effectively maintain peak performance and operating
characteristics, for all Astec APS power systems to to
the partners’ section of the Emerson Energy Systems
web site at www.EmersonEnergy-NA.com
. To obtain
access to the partners’ section follow the instructions
found on the partners’ page, or dial your local 1−800
technical support line.
Procedure 7 – Adding or replacing a battery string
Step Action
1
Notify the Alarm Center of the possibility of incoming alarms during
the execution of this procedure.
2
Disconnect the inter-cell connectors or wiring harness from the
individual battery cells, and insulate each exposed terminal with
electrical tape.
3
The removed batteries must be disposed of in accordance with local,
provincial, state, national or federal environmental legislation.
4
Install the new batteries and use the new connecting material
(typically furnished with the new batteries) to interconnect them.
Note:
If specified, install the new batteries in the space vacated by the
removed batteries.
5
Complete the initial charge of the new battery string according to the
battery manufacturer's specifications using an external power supply.
6
If required, install two new battery leads. Connect the new batteries to
the charge + and charge – busbars inside the NT6C28C control and
distribution panel. Refer to Figure 22. If a battery disconnect panel is
provided, refer to the appropriate battery disconnect panel drawing for
the connection details.
7
Notify the Alarm Center at the completion of the procedure.
–end–