INTRODUCTION
2.1 General
LEONICS NB-series/NPB-series UPS is a True On-Line Double conversion
uninterruptible power supply which is the highest quality power protection system to
protect against all utility power problems. It is designed for power sensitive equipments
or critical applications such as computers, communication equipments, medical
instruments, electronic measurement equipments, scientific equipments, and etc.
2.2 LEONICS NB-series and NBP-series UPS operation
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Battery can be recycled and needs proper elimination. It consists of
lead which harms to our environment and health. Please return the
battery to us or our service center.
1.3.3 Do not disassemble batteries. They contains poisonous electrolyte which is
harmful to your skin and eyes.
1.3.4 When replacing a battery, use tools with insulated handles and remove any
watch, rings or other metal objects that you wear in order to avoid electric
shock.
1.3.5 Replace batteries with the same type and rating and follow the proper
battery replacement procedure.
Vocabulary
Load :
Any equipment which is plugged into the UPS and gets power from
the UPS such as a computer, printer, fax machine or modem.
UPS : NB-Series and NBP-series UPS
VA
: The unit of UPS power rating showing its capacity.
2.2.1 When utility power and loads are normal
Above diagram shows how UPS works when utility power (AC line) is
normal and UPS has less than 100% load. UPS converts utility power from
alternative current (AC) to direct current (DC) at RECTIFIER. Some of the DC
power flow to charge battery to be backup power and the rest flow directly to
INVERTER to invert power to high quality and stable AC power. Then, supply
to load.
Note:
The input circuit breaker is available in NB 2K25, NBP Series only.
2.2.2 When utility power is normal but overload
Above diagram shows how UPS works when utility power is normal
and UPS has more than 100% load. UPS converts utility power at RECTIFIER to
charge battery only. The power supplied to load is from utility line.
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