Verify your UPS system's true performance and battery autonomy under full load. Identify weak cells, validate backup time, and ensure your critical equipment stays online during power interruptions.
A UPS is only as reliable as its batteries. Without regular full-load testing, you're trusting critical backup power to an unknown condition.
Battery capacity degrades over time. A UPS may pass a simple start-up test, but fail to deliver the required backup time during a real outage. Load bank testing reveals the true remaining capacity.
A single underperforming battery cell can compromise the entire string. Full-load testing is the only practical way to identify weak or failing cells under stress.
UPS testing verifies not just the batteries, but also the integrity of all electrical interconnections, wiring, and control systems — ensuring the whole system is robust.
Many industry standards, including NFPA 110, require documented load bank testing for UPS systems during commissioning and preventative maintenance. Without it, you risk audit failures and sign-off delays.
We provide professional load bank testing services to validate your UPS system's performance under controlled, real-world electrical loads. Our approach simulates actual power outages, so you know exactly how long your batteries will support critical loads when the grid fails.
What we test and verify:
Our testing process:
Full charge, visual inspection, safety checks, disconnect real load
Verify no-load voltage/frequency, charger operation, and battery state
Apply 25% → 50% → 75% → 100% load; record performance at each step
Simulate an outage; discharge batteries under full load; measure actual autonomy
Verify automatic/manual transfer to bypass and back to UPS
Detailed documentation with capacity results, weak cell identification, and recommendations
Different UPS systems require different load banks. Here's how we match the right solution to your application.
| UPS / Battery Type | Recommended Load Bank | Key Features | Best For |
|---|---|---|---|
| AC UPS Systems | Resistive AC Load Bank | Simulates pure resistive load, tests voltage/frequency stability | Data centers, offices, commercial facilities |
| DC Battery Systems | DC Resistive Load Bank | Discharges batteries at controlled current, measures true capacity | UPS battery strings, telecom, renewable storage |
| UPS with Motor Loads | RLC Reactive Load Bank | Simulates inductive/capacitive loads; tests power factor handling | Facilities with motors, transformers, or UPS with real load complexity |
| Mission-Critical UPS | RLC Programmable Load Bank | Precise step-load control, data logging, NFPA 110 compliance reporting | Data centers, hospitals, financial institutions |
Our engineering team will help you select the right load bank and testing protocol for your specific UPS and battery configuration — whether it's commissioning, preventative maintenance, or compliance verification.
+86 13690182704
周一到周五
123456@qq.com
400-12346578
周一到周五
123456@qq.com
sales@vilva-test.cn
Sophia