S3 Smart Backup Lithium-ion Battery System Solution

Product Introduction

“Carbon Peaking • Carbon Neutrality” has become a global priority for
all countries and industries, and the concept of green energy saving
has also been widely recognized by the people. Thanks to the new
infrastructure and ‘dual carbon’ goals, the lithium-ion battery industry
has developed geometrically at an astonishing pace. Lithium-ion iron
phosphate walks in the forefront for its safety and stability, and has
constantly carried out security upgrades.
By following the nuclear-grade safety design concept and leveraging
its over 30 years of professional experience in the power field

Kehua deeply applied power electronics to the lithium-ion battery
technology and released lithium-ion battery solution with high safety
and reliability – Kehua S3
Smart Backup Lithium-ion Battery System
Solution (Safety-Li, Smart-Li, Simple-Li)

Application

Government, education, transportation, communication, finance, data center, medical treasure, enterprise, industry, etc.

Product Features

The S3
smart backup lithium-ion battery system solution adopts the modular parallel design, Safe, Smart and
Simple, which can compatible with the full range of Kehua UPS, with power ranging from 6kW to 1200kW.

Safe

Electrical and physical double isolation

• DC/DC isolated design combines with the physical isolated design. The fault battery module exits automatically without expanding the fault range
• Terminal zero voltage when shut down the system, no risk of short circuit shock

Fire protection

• Module fire protection
• Can quickly, accurately and effectively detect and extinguish the fire source will extinguish the fire in the initial stage

Three-layer BMS structure

• PBMU-SBMU-MBMU, ensure the system safety and improve the system reliability

Insulation testing

• On-line array insulation detection, prevention of battery insulation failure in advance

Simple

Module design, plug and play

• Minute-level maintenance, reduce the OPEX cost

Flexible for expansion

• Module design, support on-line expansion, can expand the capacity of modules or cabinets.
• Reduce the CAPEX cost

Smart battery test

• Parallel design, the battery can test the capacity Separately. No need to cut off the power supply, improve the reliability

Smart

Intelligent current equalization

• Can be mix used with new and old batteries
• Support pack-level and cabinet-level mixing of old and new batteries

Fault recording, early warning

• Fault recording, early warning, accurate and quick fault location, reduce the OPEX cost

Adaptive SOC management

• Intelligent charge and discharge management, avoid over charge and over discharge
• Detects the battery internal temperature. Improve the safety and reduce the OPEX cost

Featured Three-layer BMS Architecture

The adopted three-layer BMS architecture (PBMU/SBMU/MBMU) ensures the reliability of lithium-ion battery
system from cell, module and system layers.

Battery Configuration Table

1. 40Ah battery module for short time power backup

Meeting the required backup time according to the initial capacity

2. 5OAh battery module for short time power backup

Meeting the required backup time according to the initial capacity

3. 100Ah battery module for long time power backup

Meeting the required backup time according to the initial capacity