ET3KRS + 3 Sets LD48V50AH Lithium Battery 8-Hour Backup Power App

I. Project Overview

This project serves a construction engineering company in Qingyuan, Guangdong. Engineering construction sites, outdoor engineering equipment and on-site monitoring systems are often faced with unstable municipal power supply, frequent power cuts and intermittent power supply problems. Long-term power outages will lead to shutdown of on-site construction equipment, suspension of engineering detection, interruption of on-site monitoring and loss of construction data, seriously affecting the construction progress and safety management of engineering projects. To solve the problem of short standby time of traditional power supply equipment, the customer adopts ET3KRS UPS host, matched with 3 sets of LD48V50AH lithium iron phosphate battery packs. The customized extended backup power solution realizes 8-hour long-term emergency power supply, which provides stable and lasting uninterrupted power guarantee for on-site engineering equipment, monitoring systems and engineering control terminals, ensuring the continuous and safe progress of on-site construction work.

II. Core Equipment Configuration

Aiming at the characteristics of complex power environment at engineering construction sites and the demand for long-hour standby power failure, the project adopts a high-stability extended standby lithium battery UPS power supply system:

Power Supply Host: The ET3KRS high-frequency online UPS host has strong load capacity and wide voltage adaptation range, which can adapt to the complex and unstable power environment of outdoor engineering sites. It outputs pure sine wave stable power, realizes zero-delay seamless switching during power failure, and effectively avoids equipment shutdown and data abnormality caused by grid fluctuation and instantaneous power failure, protecting the safe operation of precision engineering equipment.
Extended Energy Storage Configuration: Equipped with 3 sets of LD48V50AH professional lithium iron phosphate battery packs, the parallel battery combination greatly increases the system energy capacity. It successfully meets the customer’s customized 8-hour long standby power supply demand after mains power failure. The lithium battery features high safety, strong shock resistance and wide temperature adaptability, which is suitable for harsh outdoor construction site working conditions. The built-in intelligent BMS system realizes full coverage protection of overcharge, overdischarge, short circuit and overheating, ensuring stable energy storage and long-term continuous power output.

III. Application Advantages of the Solution

8-Hour Ultra-Long Emergency Standby: Different from conventional short-time backup UPS, the solution adopts 3 sets of LD48V50AH battery parallel expansion scheme, which stably supports 8-hour continuous power supply after mains power outage. It fully copes with long-time power failure and power maintenance at engineering sites, avoids construction suspension caused by power problems, and effectively guarantees the construction progress.
Strong Adaptability to Harsh Engineering Working Conditions: The ET3KRS host has excellent grid anti-interference ability, adapting to unstable voltage and complex power environment of construction sites. The lithium battery pack has outstanding shock resistance, drop resistance and high and low temperature resistance, which can operate stably in outdoor open-air construction environments and is not easy to be damaged by external vibration and temperature changes.
Stable Power Supply to Ensure Construction Safety: The system realizes seamless switching between mains power and battery power, with no power-off gap in the whole process. It ensures the continuous operation of on-site monitoring, engineering detection equipment and control systems, avoids safety monitoring blind spots and construction data loss caused by power failure, and improves the overall safety management level of engineering projects.
Durable and Low Operation Cost: The LD series 48V50AH lithium iron phosphate battery has long cycle life and low attenuation rate, with far longer service life than traditional lead-acid batteries. It reduces the frequency of battery replacement and daily maintenance work on construction sites, saves later operation and maintenance costs, and provides long-term stable power support for engineering projects.