ONLINE UPS
Industrial true double-conversion online UPS systems with 0 ms transfer time engineered for tier-III data centers, hospitals, and critical manufacturing lines.
ONLINE UPS
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An Online UPS (Uninterruptible Power Supply) provides true double-conversion power, continuously converting incoming AC to DC and back to pure sine-wave AC with zero transfer time (0ms). TNS Engineering Ltd supplies and installs 1kVA to 600kVA industrial three-phase and single-phase online UPS systems across Bangladesh for textile mills, data centers, hospitals, and CNC industrial machinery.
Industrial Online UPS Systems in Bangladesh — Technical Guide & Sizing
Industrial manufacturing, automated spinning mills, modern hospitals, and digital cloud servers in Bangladesh require uninterrupted, clean power. Raw utility electricity often suffers from severe harmonic distortions, frequency variations, voltage sags, and transient spikes. True Online Double Conversion UPS systems isolate critical electrical loads completely from incoming AC mains, ensuring voltage stability of ±1% and zero transfer interruption (0ms) during blackout events.
As the official distributor of Howa Power and WISMAR Series industrial online UPS systems in Bangladesh, TNS Engineering Ltd. provides turnkey engineering, from electrical load audit and harmonic suppression to automated battery bank sizing and 24/7 on-site technical support.
KS Model vs. KL Model Selection:
- KS Models (Standard Backup): Feature integrated internal battery compartments designed for 10–15 minutes of runtime, allowing seamless automated switchover to on-site standby diesel generators.
- KL Models (Long Backup): Equipped with high-amperage internal chargers (up to 12A–25A) and external DC terminals to connect high-capacity VRLA/SMF or LiFePO4 battery banks for 1 to 8 hours of extended continuous operation.
Industrial Online UPS Capacity & Sizing Reference Matrix
Engineering sizing guide for standard commercial and industrial applications in Bangladesh.
| Capacity | Phase / Topology | DC Bus Voltage | Target Industrial Application | Recommended Battery Bank |
|---|---|---|---|---|
| 1kVA – 3kVA | 1-Phase In / 1-Phase Out | 24V / 48V / 72V | Server racks, diagnostic ultrasound, telecom routers, lab instruments | Kenson 12V 26Ah–100Ah (2 to 6 units) |
| 6kVA – 10kVA | 1-Phase / 3-Phase In / 1-Out | 192V / 240V | Small enterprise data centers, CT scanner workstations, ATM networks | Kenson 12V 40Ah–100Ah (16 to 20 units) |
| 15kVA – 40kVA | 3-Phase In / 3-Phase Out | 384V (32× 12V) | Commercial towers, textile laboratory machines, pharmaceutical clean rooms | Kenson 12V 100Ah–150Ah (32 units bank) |
| 60kVA – 200kVA | 3-Phase In / 3-Phase Out | 384V / 480V | Garment factories, auto-coner textile lines, heavy hospital surgical wings | Kenson 12V 150Ah–200Ah or Industrial LiFePO4 |
| 250kVA – 600kVA | 3-Phase Modular Parallel | Custom 384V–576V | National banking data centers, semiconductor assembly, heavy manufacturing | Engineered Dual-Bank VRLA / Containerized BESS |
Howa Power in Bangladesh
Direct factory distribution, official manufacturer warranty, and certified technical support.
Frequently Asked Questions about ONLINE UPS in Bangladesh
Q:What is the main advantage of Online UPS over Line-Interactive Offline UPS?
Online UPS has zero transfer time (0 milliseconds) because the inverter constantly powers the load. It provides pure sine-wave output with complete electrical isolation from grid surges, brownouts, and frequency fluctuations.
Q:What does KS and KL signify in Online UPS model numbers?
KS denotes standard models with internal batteries for 10–15 minutes of backup. KL denotes long-backup models engineered with high-capacity chargers for external battery banks delivering 1 to 8 hours of backup.
Q:How do I calculate the required kVA for an industrial facility?
Calculate total connected load in Watts, divide by power factor (typically 0.8), and add 25% reserve headroom. For electric motors or compressors with high inrush current, a 2.5x to 3x starting surge margin is required.
Q:Does TNS Engineering provide maintenance contracts (AMC) for Online UPS?
Yes. TNS Engineering provides comprehensive Annual Maintenance Contracts (AMC), 24/7 on-call field engineering, genuine spare parts replacement, and annual battery impedance testing across Bangladesh.
Need Engineering Sizing or an Official Project Quotation?
Consult with our senior electrical power engineers in Banasree, Dhaka for load audits, factory sizing calculations, and official wholesale quotations without retail middleman markup.