Power-system rooms live by a different set of rules than office IT rooms. Galvanic isolation is the standard, not an option. Robustness against long, slow mains events, switching transients, and harsh environmental conditions is part of the spec. The SDL line is engineered for exactly that world: a transformer-isolated, industrial-frequency online UPS platform built for thermal power plants, substations, distribution rooms, and the rooms where the consequences of a power interruption are measured in lost grid stability, not lost inbox emails.
The SDL line uses industrial-frequency online double-conversion topology with a true output isolation transformer. That combination delivers the galvanic isolation, the inrush tolerance, and the slow-but-steady robustness that power-system rooms demand. It is engineered for the realities of substation DC battery rooms, plant control rooms, and distribution automation rooms — and it is engineered to keep working when the room around it is anything but calm.
Thermal power plants and large generation stations running plant-control and protection loads.
Substations and switchgear rooms where galvanic isolation is a hard requirement.
Distribution automation rooms and ring-main-unit control rooms.
Power-system protection and SCADA rooms that must remain stable across long mains events.
Petrochemical, metallurgical, and rail-power rooms where isolation and robustness are the baseline.
An industrial-frequency online UPS platform with a true output isolation transformer.
Industrial-grade IGBT rectification and DSP-based digital control engineered for long service life.
Triple-redundant protection logic that defends the system against single-point failures.
Strong overload capability with the inrush tolerance to start heavy industrial loads.
Built-in bypass with manual maintenance bypass for safe service on a live system.
Comprehensive alarms, event logging, and remote communication via RS485, Modbus, and dry contacts.
An optional SNMP card and battery-management interface for integration with plant SCADA.
Behind the scenes, the SDL line uses an industrial-frequency rectifier and inverter stage with an output isolation transformer that delivers true galvanic isolation between the load and the upstream distribution. The platform is designed for the slow, robust behaviour that power-system rooms expect: a clean sine output, a wide input tolerance, and predictable behaviour across long mains events. Built-in bypass with manual maintenance bypass lets the service team work on a live system without compromising protection.
The SDL line is supported by a global field-engineering network with regional spares and power-system-trained service teams. It integrates with the leading plant SCADA, DCS, and BMS platforms via Modbus, RS485, and dry contacts, supports remote firmware management, and is designed for transformer-and-module upgradeability — so a system installed today can host the smarter control boards of tomorrow.
Why industrial-frequency rather than high-frequency? Industrial-frequency topology with an output isolation transformer is the standard for power-system rooms because of galvanic isolation, inrush tolerance, and long-life robustness.
Does it provide true galvanic isolation? Yes — the output isolation transformer separates the load from the upstream distribution.
Can it start heavy industrial loads? Yes — strong overload capability and inrush tolerance are engineered in.
What communication options are available? RS485, Modbus, dry contacts, and an optional SNMP card.
Is there a maintenance bypass? Yes — built-in bypass with manual maintenance bypass for safe service on a live system.
How is service handled? Regional spares, factory-trained power-system engineers, and predictable maintenance schedules.
Is it future-proof? Modular firmware and field-replaceable control boards extend useful life across generations.
What warranty and service options exist? A standard multi-year warranty with extended and on-site plans available globally.
Role-based access, audit-friendly event logs, and encrypted remote communication where supported by your plant SCADA or management platform protect operational data. Telemetry stays inside your plant network boundary by design.
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Contact: Frank Zhang
Phone: +86-135 5688 8641
Email: frank@upsboss.com
Add: Jufeng Road, Guangming Street, Guangming District, Shenzhen City, Guangdong Province, China
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