SKE SKGH Series 10K–20KVA Industrial Online UPS | 3-Phase Low Frequency, Isolation Transformer, True Online Double Conversion for Heavy Industrial Loads
Product Overview
The SKE SKGH Series 10K–20KVA is a heavy-duty industrial online UPS with 3-phase input and 1-phase / 3-phase output options. Based on low-frequency double-conversion technology and an integrated isolation transformer, it provides complete galvanic isolation and high-quality regulated power to isolate load interference and grid abnormalities.
Its rugged chassis, wide working temperature range, strong overload capacity, and full-dimensional protection make it highly suitable for large manufacturing plants, industrial control rooms, mining, petrochemical, metallurgy, large data centers, and other demanding scenarios requiring high-reliability power protection.
Key Features
True online double-conversion structure, 0ms transfer time between mains and battery
Built-in output isolation transformer for galvanic isolation and surge suppression
Wide input voltage and frequency range, adapts to unstable industrial power grids
High input power factor >0.99, low harmonic distortion, energy-saving and grid-friendly
Strong overload and short-circuit resistance, suitable for motors, pumps and other inductive loads
Industrial-grade design: wide temperature range, dust-resistant structure, strong environmental adaptability
Intelligent LCD display for real-time monitoring of voltage, load, battery and status
Multiple communication ports: RS232, USB, dry contact, SNMP optional for remote management
Smart battery management system to extend service life; supports external long-backup battery packs
Full protections: overvoltage, undervoltage, overload, short circuit, over-temperature, battery overcharge & deep discharge protection
Excellent generator compatibility, suitable for backup power systems in factories and remote areas
Technical Specifications
| Item | Specification |
| Model | SKGH10K, SKGH15K, SKGH20K |
| Rated Capacity | 10KVA–20KVA |
| Topology | Low Frequency True Online Double Conversion |
| Input | 3-phase, 380VAC ±25%, 45–65Hz |
| Output | 3-phase / 1-phase optional, 220/380VAC, pure sine wave |
| Transfer Time | 0ms |
| Waveform Distortion | <3% (linear load) |
| Efficiency | Up to 92% |
| Battery Type | Maintenance-free lead-acid battery |
| Operating Temp | 0–50°C |
| Protection Class | IP30 |
| Certifications | CE, ISO9001, IEC62040 |
Typical Applications
Industrial automation and PLC control systems
CNC machine tools, production lines and processing equipment
Oil & gas, petrochemical, mining and metallurgical equipment
Large data centers and IDC room equipment
Water treatment, pumping stations and environmental monitoring systems
Power plants, substations and power distribution systems
Airport, railway and transportation signal systems
Medical imaging equipment and life-support systems
Harsh environment workshops and outdoor critical equipment
Why Choose SKE SKGH Series?
Industrial-grade reinforced structure for long-term stable operation in harsh environments
Isolation transformer effectively suppresses surge, harmonic and common-mode interference
Ultra-wide input range reduces battery discharge frequency and prolongs battery life
Strong load adaptability for both linear and non-linear heavy loads
Complete monitoring and protection functions to reduce operation and maintenance costs
Mature industrial design, reliable performance, and global certification support
