100
4400 Series Installation and Operation Manual – 64527-008
13.4 Battery Low Voltage Tolerances
The battery charging period varies depending on the amount of discharge during backup. Figure 13.2 shows the typical
recharge curve for a fully discharged battery.
Charging Period
Explanation
Period 1
Initial charging at maximum current (limited by charger). V
min
is
minimum voltage at which the UPS will shut down power to the
load.
Period 2
Charging rate drops as battery voltage increases.
Period 3
Battery cells are at maximum voltage, UPS continues to provide a
“trickle charge” to keep the batteries a maximum charge capacity.
BATTERY
CHARGE
VOLTAGE
CURRENT VOLTAGE
CHARGING
CURRENT
I
CHARGE
(11.5A)
V
MAX
= 324 V
V
MIN
= 230 V
DISCHARGE
SHUT-OFF
POINT
PERIOD 1
PERIOD 2
PERIOD 3
TIME
FULLY
CHARGED
0
0
FIGURE 13.2: TYPICAL BATTERY CHARGING CURVE
Содержание 4400 Series
Страница 2: ......
Страница 6: ...This page left intentionally blank ...
Страница 10: ...This page left intentionally blank ...
Страница 114: ...104 4400 Series Installation and Operation Manual 64527 008 This Page Intentionally Left Blank ...
Страница 117: ...107 4400 Series Installation and Operation Manual 64527 008 FIGURE A 3 4400 50 KVA PHYSICAL DIMENSIONS 1 2 ...
Страница 118: ...108 4400 Series Installation and Operation Manual 64527 008 FIGURE A 4 4400 50 KVA PHYSICAL DIMENSIONS 2 2 ...
Страница 119: ...109 4400 Series Installation and Operation Manual 64527 008 FIGURE A 5 4400 80 KVA PHYSICAL DIMENSIONS ...
Страница 120: ...110 4400 Series Installation and Operation Manual 64527 008 FIGURE A 6 4400 100 KVA PHYSICAL DIMENSIONS ...
Страница 136: ...This page left intentionally blank ...
Страница 137: ......