Industrial UPS

Industrial UPS systems are specified when the grid is hostile, the load is inductive, or the specification explicitly calls for galvanic isolation. HighIdea's GX series uses power-frequency (industrial-frequency) online double conversion with an isolation transformer at the output — a topology that trades some efficiency and footprint for absolute robustness.

If the site instead needs a compact, high-efficiency 3-in / 3-out system for standard IT or plant loads, see the Three-Phase High-Frequency UPS sub-category (EX33 tower 10-80kVA, 33ET rack 10-60kVA).

What the isolation transformer buys you

• Galvanic separation between input and output, which also solves many grounding and neutral-bonding problems on older sites.
• High overload and short-circuit withstand — motor starting currents and downstream faults are absorbed without tripping to bypass.
• Wide input voltage and frequency windows for generator co-operation and unstable utility feeds.
• Lightning protection and anti-interference design for electric-power and heavy-industry environments.

The trade-off is weight, size and a few points of efficiency. Where those costs are acceptable, the transformer-based design is still the default in power generation, transmission and process industries. The topology comparison is set out in line-frequency vs high-frequency UPS, and motor / inductive load sizing is covered in UPS sizing for motor loads.

Model coverage

GX(A) single-phase and three-phase versions cover 6-120kVA at 220 / 230 / 240Vac, with 100 / 110 / 120Vac low-voltage variants for Japan, the Americas and other LV markets. GX33 three-phase units extend the range to 10-600kVA, with parallel operation for N+1 redundancy or capacity growth. Both VRLA strings and LiFePO4 battery banks can be sized to the site's autonomy requirement; 48V LiFePO4 rack packs are available where footprint and cycle life matter.

Specifying a system

Confirm the load kVA / kW and power factor, input and output phase and voltage, the required runtime, the share of motor or other high-inrush load, and the site's grounding and lightning exposure. Bypass cabinet arrangements for this class of system are described in UPS bypass configuration. All models support OEM/ODM customization of capacity, voltage, runtime, communication protocols and branding.