Q1. Why do isolation transformers rated at 150 kVA and above include a temperature alarm?
At 150 kVA and above, the energy stored in the transformer's core and windings is substantially greater than at smaller ratings, meaning that an overtemperature condition — if left undetected — can cause accelerating insulation degradation, winding damage, or in severe cases, fire risk. The built-in alarm triggers at 150°C, giving operators a clear warning to manually suspend or stop the transformer and allow it to cool before resuming operation.
Q2. Can the 3-phase to single-phase customisation option handle large single-phase loads?
Yes. The 3-phase to single-phase customisation allows the transformer's 3-phase input to supply a single-phase output — useful in installations where only single-phase power is available at the load end, or where large single-phase loads (such as certain industrial heating systems, specialised production equipment, or high-power test rigs) need to be powered from a 3-phase distribution bus. At 150 kVA, this configuration can supply substantial single-phase loads that would be impractical to serve from standard single-phase transformer ratings. Note that this is a factory customisation — the intended configuration should be specified at the time of order ( contact us if needed), as it affects the winding design and cannot be field-modified after manufacture.
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