Operation & MaintenanceOperation & Maintenance
Length of cable between battery module and power plant shall be less Length of cable between battery module and power plant shall be less
Color for cable between ‘+’ and positive female bar is suggested as red, and cableColor for cable between ‘+’ and positive female bar is suggested as red, and cable
’ and negative breaker or fuse as black.’ and negative breaker or fuse as black.
4) Power on for battery module4) Power on for battery module
When installation is accomplished, battery module is in dormant state. Once power onWhen installation is accomplished, battery module is in dormant state. Once power on
for power plant, battery module will for power plant, battery module will
go into normal running go into normal running
status, and discharge/chargestatus, and discharge/charge
can be available.can be available.
Parameter settings for lithium battery modules Parameter settings for lithium battery modules
in power plant in power plant
are shown in Table 4.2.are shown in Table 4.2.
5) RS232/RS485 connection5) RS232/RS485 connection
If there is only one If there is only one
battery module in operation, communication between battery modulebattery module in operation, communication between battery module
and upper computer can available through both RS232 and RS485.and upper computer can available through both RS232 and RS485.
If there are more than one battery modules in operation, parallel communication can beIf there are more than one battery modules in operation, parallel communication can be
available using RS485.available using RS485.
Communication protocols for RS232 and RS485 are shown inCommunication protocols for RS232 and RS485 are shown in
6) Discharge with dummy load6) Discharge with dummy load
Dummy load cannot be larger maximum discharge current of each battery model inDummy load cannot be larger maximum discharge current of each battery model in
Table 2.1, and LVBD is larger than 40.5V.Table 2.1, and LVBD is larger than 40.5V.
Voltage drop on cable between battery module and power plant shall be less than 0.5V.Voltage drop on cable between battery module and power plant shall be less than 0.5V.
Method of calculation for cross Method of calculation for cross
sectional area of cable is sectional area of cable is
shown as below.shown as below.
In the above formula, A is across sectional area of wire (mm2), ΣI is the total currentIn the above formula, A is across sectional area of wire (mm2), ΣI is the total current
(A), L is length of cable,(A), L is length of cable,
U is the permit voltage drop on cable (V), and K is electricalU is the permit voltage drop on cable (V), and K is electrical
conductivity of wire. For example, for copper, K = 57conductivity of wire. For example, for copper, K = 57
The battery shall be recharged every three months if in long time storageThe battery shall be recharged every three months if in long time storage
Please clean the dust by the dust collector when dust is accumulated on ventPlease clean the dust by the dust collector when dust is accumulated on vent
Please use clean and dry cloth/fabric to clean up the cabinet, if need furtherPlease use clean and dry cloth/fabric to clean up the cabinet, if need further
cleaning, please use neutral cleanser. Alcohol or ammonia synthesis iscleaning, please use neutral cleanser. Alcohol or ammonia synthesis is
Carrying shall be handled gently, prevent from severe compactCarrying shall be handled gently, prevent from severe compact
Prevent battery from splashing liquidPrevent battery from splashing liquid
Suggest inspect the tighten of output screw every two yearsSuggest inspect the tighten of output screw every two years
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