| DUTY: |
400 KVA for 15 minutes
Power Factor: 0.80
Efficiency: 0.90 |
Maximum Voltage: 435
volts
Minimum Voltage: 306 volts
Temperature: 25° Centigrade |
|
| Power Requirement: |
KVA x Power Factor
/ Efficiency
400 x 0.80 / 0.90
= 355.6 kW |
| Maximum number
of cells: |
Maximum Voltage
/ 2.25 volts (nominal cell float voltage)
435 / 2.25 = 193 cells |
| Minimum Cell
Voltage: |
Minimum Battery
Voltage / Number of Cells
306 / 193 = 1.58
volts |
| Watts per Cell
Required: |
Power Requirement
(Watts) / Number of Cells
355.6 x 1000 / 193
= 1843 Watts |
|
| From
the data sheets for Constant Power discharges to 1.60 volts
for 15 minutes |
YHP19
FHP21
11RCT1100 |
gives
1973 watts for 15 minutes to 1.60 volts
gives 1925 watts for 15 minutes to 1.60 volts
gives 1901 watts for 15 minutes to 1.60 volts |
|
|
