What Is Galvanic Isolation
Q: What is galvanic isolation of a UPS inverter?
A: Galvanic isolation refers to a double-wound transformer (typically on the UPS output inverter) that isolates the load from the UPS battery power. If an inverter short-circuit occurs, the transformer prevents high-DC battery power from reaching the load — it acts like a one-way valve that only passes AC.
Galvanically isolated UPS systems — the Riello Master MPS (referred to in the FAQ as MPT), Master HP (MHT), and Master HE (MHE) ranges — are widely used where the inverter load is harsh: mixed-building loads, motors, air conditioners, medical imaging equipment, plasma-cutting machinery, and similar industrial loads. The output transformer makes the UPS far less susceptible to these loads, and over the long term is a more reliable and lower-cost solution than a transformerless UPS inverter for these duty cycles.
Connections
- Galvanic Isolation — referenced, source: https://standbysystems.co.za/ups-batteries-questions-and-answers/
- Master MPS — referenced, source: https://standbysystems.co.za/ups-batteries-questions-and-answers/
- Master HP — referenced, source: https://standbysystems.co.za/ups-batteries-questions-and-answers/
- Master HE — referenced, source: https://standbysystems.co.za/ups-batteries-questions-and-answers/