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BK-L33-30KVA(PF0.8)丨Three Phase High-Frequency Online UPS
PRODUCT PARAMETERS
- True Online Double-Conversion Technology
- Advanced High-Frequency Transformerless Design
- Ultra-Wide Input Voltage & Frequency Range
- High Efficiency & Energy Savings
- Full Digital DSP Control
Description
Product Overview
The BK-L33-30KVA is a high-power flagship High-frequency online UPS featuring a transformer-less, high-frequency design—elevating reliability and efficiency for large-scale applications as a premium Online double-conversion UPS. By eliminating bulky line-frequency transformers, this Transformerless online UPS cuts weight by up to 40% even at 30KVA capacity, slashes power losses, and drives down total cost of ownership (TCO) for global enterprises with high-power demands.
As a true High-frequency double-conversion UPS tailored for heavy-duty use, it adopts online double-conversion technology, ensuring 24/7 inverter-powered load supply with 0ms transfer time. This seamless protection shields high-value critical equipment from voltage sags, surges, and full blackouts—essential for large-scale mission-critical IT, industrial, and commercial applications across overseas markets. Equipped with an intelligent active-PFC rectifier, the Double-conversion UPS boasts an ultra-wide input voltage range, maintains input power factor ≥0.99, and keeps THDi <5%, easing strain on upstream infrastructure and meeting global green-energy norms.
Fusing DSP-controlled SPWM precision, robust build quality, and enterprise-grade reliability, this high-power UPS System sets a new standard for green, efficient power protection—ideal as a UPS for data center, UPS for server room, UPS for medical equipment, and UPS system for enterprise in North America, Europe, Southeast Asia, and other global markets.
Applications
This high-power UPS power solution is engineered for large-scale, high-reliability scenarios exclusive to 30KVA capacity, catering to overseas users with heavy-duty demands:
Finance
Ensures uninterrupted power for large-scale ATM networks, regional trading hubs, and core banking data centers. As a high-power UPS System for enterprise, it safeguards high-volume transaction integrity and critical data security during outages—essential for multinational banks and financial institutions.
Telecommunications
Powers large telecom switching centers, regional base station clusters, and fiber optic backbone networks. This Double-conversion UPS maintains 24/7 connectivity for telecom operators managing large coverage areas, preventing widespread service disruption.
Government
Supports mission-critical operations in national command centers, large e-governance data hubs, and secure federal facilities. The High-frequency online UPS delivers high-availability power protection for large-scale government infrastructure worldwide.
Transportation
Powers large traffic control centers, railway signaling networks, and airport terminal navigation systems. The Online double-conversion UPS ensures zero downtime for large-scale intelligent transport infrastructure with high-power load requirements.
Manufacturing
Protects large-scale PLC systems, industrial PCs, and automated production lines (automotive assembly, electronics manufacturing) from voltage fluctuations. This UPS System avoids costly downtime and equipment damage for global manufacturing plants with heavy-duty production demands.
Education
Secures university data centers, large campus networks, and high-performance computing labs. The High-frequency double-conversion UPS ensures continuity of digital learning and research operations for large educational institutions.
Large-Scale Data Centers & Server Rooms
Delivers clean, stable power to high-density server racks, storage arrays, and networking gear in enterprise and colocation data centers. As a dedicated UPS for data center and UPS for server room, it meets Tier III/IV reliability standards with 90% line-mode efficiency—perfect for large-scale data processing facilities abroad.
Precision Equipment Rooms (High-Power)
Supplies ultra-stable, low-distortion power to large medical imaging devices (MRI, CT scanners), industrial lab instruments, and semiconductor fabrication equipment. This UPS for medical equipment meets strict electrical quality requirements for global healthcare providers and high-tech manufacturing plants with high-power precision gear.
Product Features
Advanced Transformerless High-Frequency Online UPS Architecture
Eliminates bulky power frequency transformers, reducing overall weight by ~40% even at 30KVA capacity while boosting power density. This Transformerless online UPS cuts energy consumption and cooling requirements for large-scale deployments—aligning with overseas enterprises’ sustainability and cost-saving goals for high-power systems.
True Online Double-Conversion UPS Operation
Whether mains power is normal or abnormal, the inverter continuously powers high-power loads with 0ms switching time. This Double-conversion UPS ensures uninterrupted, stable operation for critical heavy-duty equipment in global mission-critical environments.
Built-in Intelligent Active PFC for High-Frequency UPS
Supports an ultra-wide input voltage range, easily handling voltage sags/dips in unstable overseas grids even under full 30KVA load. It actively improves input power factor to ≥0.99 and limits THDi <5%, meeting international green energy and power quality standards for large-scale installations.
Emergency Power Off (EPO) for Enterprise UPS System
One-button safe shutdown during fires, floods, or maintenance—protecting personnel and high-value equipment in compliance with global safety regulations (OSHA, CE) for large commercial and industrial facilities.
DSP Full-Digital Control for Double-Conversion UPS
A high-performance DSP achieves all-digital control of PFC, inverter, and charger, delivering sub-millisecond response and higher precision—critical for maintaining stability under 30KVA high-power loads like data center racks and industrial production lines.
High Output Power Factor + High-Power Load Compatibility
Supports modern high-power IT, medical, and industrial loads without derating—even for 24KW continuous output. This flexibility makes it a top choice as a UPS for data center, UPS for medical equipment, and UPS system for enterprise with heavy-duty load requirements across global markets.
Specifications
| Model | BK-L33-30KVA | |
| Capacity | 30KVA/24KW | |
| Input | Wiring | Three-phase four wires + Ground |
| Rated Voltage | 380/400/415Vac | |
| Voltage Range | 208-304Vac (50% load); 304-478Vac (100% load) | |
| Frequency Range | 46Hz-54Hz (@50Hz system); 56Hz-64Hz (@60Hz system) | |
| Input Power Factor | ≥0.99 (100% load) | |
| Output | Wiring | Three-phase four wires + Ground |
| Rated Voltage | 380/400/415Vac | |
| Voltage Regulation | ±1% | |
| Frequency Range (Synchronous Range) | 46Hz-54Hz (@50Hz system); 56Hz-64Hz (@60Hz system) | |
| Frequency Range (Battery Mode) | 50Hz±0.1Hz or 60Hz±0.1Hz | |
| Output Power Factor | 0.8 | |
| Distortion (THDV%) | ≤2% (@100% linear load); ≤5% (@100% non-linear load) | |
| Overload Capability (AC Mode) | 100%-110%: 10 minutes; 110%-130%: 1 minute; >130%: 1 second | |
| Overload Capability (Battery Mode) | 100%-110%: 30 seconds; 110%-130%: 10 seconds; >130%: 1 second | |
| Current Peak Ratio | 3:1 (maximum) | |
| Switching Time | 0ms | |
| Battery | Battery Type | External battery |
| Model | 12V | |
| Number of Batteries | 16/18/20 units (optional) | |
| Charging Current | 12A | |
| Charging Voltage | N×13.65VDC±1% (N=number of batteries) | |
| Efficiency | Line Mode | 90% |
| ECO Mode | 89% | |
| Management | Display Panel | LCD display / LED status indicator |
| Communication Function | Intelligent RS-232 or USB, supporting Windows 2000/2003/XP/Vista/2008, Windows 7, Linux, Unix, MAC | |
| Optional SNMP | Supports power management via SNMP manager and web browser | |
| Environmental | Operating Temperature | 0~40℃ (Battery life will be reduced when temperature >25℃) |
| Humidity | <95% RH (non-condensing) | |
| Altitude | <1000m for Nominal power | |
| Noise Level | <65dB@1meter | |
| Standards | Safety | IEC/EN 62040-1 |
| EMC | IEC/EN 62040-2 Category C3 | |
| Physical | IP Class | IP20 |
| Dimensions (D×W×H) | 800×250×825 mm | |
| Weight | 71 kg | |
FAQs
UPS stands for Uninterruptible Power Supply and is a device that provides a continuous supply of power to protect critical loads from power failures or fluctuations.
The main role of a UPS is to provide a backup power source to ensure that critical equipment can continue to operate when utility power is interrupted or unstable, avoiding data loss or equipment damage.
UPS is mainly divided into three types: offline, online and online interactive.
When choosing the power capacity of the UPS, you need to consider the total power demand of the load, it is usually recommended to choose a slightly larger than the total load power of the UPS to ensure sufficient standby time.
The standby time of a UPS depends on the battery capacity and load power. Standby time usually ranges from 10 minutes to several hours, and the specific needs can be determined according to the actual application scenario.
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