Narada NPFC Series, Operation Manual

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2 2 Part Part 2 2
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Product Introduction Product Introduction
LiFePO LiFePO
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Battery Battery Module Module for for Telecom Telecom Operation Operation Manual Manual
Part 2 Part 2
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Product Introduction Product Introduction
2.1 2.1
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Overview Overview
NPFC NPFC series series battery battery system system is is 48V 48V system system for for communications communications back-up back-up type type LiFePO LiFePO
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(lithium iron phosphate) battery products, the system uses the advanced LiFePO (lithium iron phosphate) battery products, the system uses the advanced LiFePO
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battery battery
technology with the benefit of long cycle life, small size, light weight, safety and environmental technology with the benefit of long cycle life, small size, light weight, safety and environmental
protection, and has a str protection, and has a strong environmental ong environmental adaptability, it is idea for har adaptability, it is idea for harsh outdoor environment sh outdoor environments. s.
The system also integrates a smart battery management and monitoring module, support for The system also integrates a smart battery management and monitoring module, support for
remote centralized monitoring and remote battery management and maintenance, to meet the remote centralized monitoring and remote battery management and maintenance, to meet the
requirements of unattended. Therefore, the NPFC system can fully meet the backup power supply requirements of unattended. Therefore, the NPFC system can fully meet the backup power supply
requirements of the access network equipment, mobile communications equipment, transmission requirements of the access network equipment, mobile communications equipment, transmission
equipment, micro base stations and equipment, micro base stations and microwave communication equipment. microwave communication equipment.
2.2 2.2
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Working Principle Working Principle
The NPFC battery system mainly includes Fe lithium battery pack, battery protection, cell The NPFC battery system mainly includes Fe lithium battery pack, battery protection, cell
balancing balancing unit, unit, monitoring monitoring module module and and charge-discharge charge-discharge management management module module for for optional. optional. Its Its
schematic diagram shown in Figure 2.1 schematic diagram shown in Figure 2.1
Fig. 2.1 Fig. 2.1
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S S
chematic Diagram chematic Diagram
LFP cells LFP cells Chemical p Chemical power, energ ower, energy storage y storage and powe and power supply com r supply components. ponents.
Battery protec Battery protection tion Protect Protect LFP LFP cells cells against against overcha overcharge, rge, over over discharge discharge, , over over current, current, over over
temperature, short circuit temperature, short circuit
Cell Cell balancing balancing Equalization Equalization LFP LFP cells cells for for cells cells unbalanced unbalanced
Charge-discharge Charge-discharge
management management
Discharge circuit Discharge circuit manage management, and ment, and chargin charging g current limit current limit (optiona (optional l accordin according g
to customer requirements) to customer requirements)
Charge-discharge Charge-discharge
management
management
LFP cells LFP cells Cell balancing Cell balancing
Cell Cell protection protection
Monitoring Monitoring
DC DC
Input Input
Load Load