It is compatible with power units of medium and high-voltage inverters in the ACS880 and ACS800 series, fulfilling three core functions: DC bus voltage stabilization, harmonic suppression, and high-low voltage electrical isolation.

Product Features
- Electrical Isolation PerformanceAn electrostatic shielding layer is installed between primary and secondary windings to block the transmission of common-mode interference. It prevents high-frequency pulse voltages generated by inverters from intruding into upstream power distribution circuits and damaging weak-current equipment such as instruments and PLCs.
- Harmonic Mitigation PerformanceMatched with inverter rectifier circuits, it filters typical harmonics of the 5th, 7th and 11th orders, reduces the total harmonic distortion (THD) of the power grid, avoids reactive power penalties for the plant power supply system, and protects components in upstream switchgear cabinets.
- Overload Withstanding PerformanceIt can sustain 1.5 times the rated load for 30 minutes in short-term operation. No winding overheating or core saturation shutdown occurs under sudden impulse loads from motor startup.
- Maintenance-Free Long-Term OperationThe fully encapsulated structure has no exposed vulnerable components. Under normal operating conditions, only visual dust removal inspection is required every 6 years; no internal insulation or winding accessories need replacement.
- Compliant Electromagnetic Compatibility (EMC)It has passed industrial EMC tests. The unit itself does not emit strong electromagnetic interference during operation. It can be installed side-by-side with fiber-optic communication modules and servo controllers at close range without signal interference.

Application Fields
Metallurgy Industry – Main Drives of Rolling Mills
Matched with high-power medium-voltage inverters of the ACS880 series, it stabilizes load voltage under frequent forward/reverse rotation of rolling mills, and suppresses grid harmonics generated by high-power electric arc furnaces in workshops.
Mining Industry – Underground Hoists & Belt Conveyor Drive Systems
Its fully encapsulated moisture-proof structure adapts to underground environments with heavy dust and high humidity. It electrically isolates low-voltage control circuits from high-voltage power circuits to guarantee operational safety underground.
Petrochemical Industry – Variable Frequency Drives for Pumps & Compressors
The encapsulated structure prevents winding corrosion in environments with corrosive chemical gas. It delivers stable output voltage for 24/7 non-stop continuous production conditionsVariable F....
Wind & Photovoltaic Power – Supporting Equipment for Power Converters
New energy grids feature severe voltage fluctuations. Its linear iron core structure resists abrupt voltage surges and drops, and isolates the DC side and AC side circuits of power converters.
Industrial Automation – Control Cabinets & Complete Drive Cabinets
Serving as an auxiliary power isolation transformer inside cabinets, it provides isolated and safe power supply for cabinet-mounted PLCs, touch screens and sensors.
Marine & Offshore Platforms – Electrical Drives for Vessels
Marine power grids suffer complex harmonics and high ambient humidity. The transformer complies with marine electrical insulation protection requirements and is suitable for matching frequency converters of ship propulsion motors.

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