Table of Contents
Advertisement
6) Determine if battery is inadvertently grounded. If inadvertently grounded, remove source from ground. Contact with any part of a
grounded battery can result in electrical shock. The likelihood of such shock can be reduced if such grounds are removed during
installation and maintenance (applicable to equipment and remote battery supplies not having a grounded supply circuit).
1.2 Battery Care
If the UPS is unused for an extended period of time it must be stored in a moderate climate. The batteries should be charged for twelve
hours every three months by plugging the UPS power cord into a wall receptacle and turning on the input breaker on the front panel.
Repeat this procedure every two months under a high-temperature environment.
2. UPS System Block Diagram
2.1 Single input System Block
a
UPS Utility Input: to provide the AC source to the UPS rectifier circuit and charger.
b
UPS Bypass Input: to provide the AC source to the UPS Bypass Input and Maintenance Bypass loop.
c
UPS Utility Input Breaker: to protect the UPS Rectifier circuit from over-current.
d
UPS Bypass Input Breaker: to protect the UPS Bypass circuit from over-current.
e
EMI Filter on UPS Utility Input : to eliminate the magnetic interference from AC Source or UPS Utility Input.
f
EMI Filter on UPS Bypass Input: to eliminate the magnetic interference from AC Source or UPS Bypass Input.
g
Fuse for UPS Utility Input: to provide over-current protection for UPS Rectifier Circuit.
h
Rectifier and Booster: When Utility is normal, they will converts the AC to DC and correct input power factor.
abnormal, the batteries will be boosted to provide the DC voltage to the Inverter.
i
Input fuse for Battery: to protect batteries when DC-Booster is out of order.
j
Charger: the battery charging device.
k
Internal Battery: When AC abnormal, it provide the backup power from the batteries.
l
External Battery Bank: To provide longer backup time by adding additional Battery bank.
m
Inverter Generator: To convert the DC voltage to AC voltage
n
Inverter Output Switch: Only when the UPS is overloaded or abnormal, or the UPS is working on ECO mode or if EPO(Emergency
Power Off) is activated, the Switch will be opened.
o
Auto Bypass Loop: When the UPS is overloaded or abnormal, the UPS will Switch the UPS from inverter output to bypass output
automatically.
p
UPS Output Fuse: When the UPS is overloaded, the fuse will open.
q
UPS Output EMI Filter: To eliminate the magnetic interference from the UPS Output and avoid the interference caused by the output
load and the UPS.
Note: Informational purposes only ,the actual configuration depend on each model.
2.2 Dual input System Block
3
When Utility is
Advertisement
Table of Contents
