160 kVA Cast Resin Dry Type Transformer is prepared for indoor cast-resin transformer duty. It covers Up to 11 kV input networks and 400V / 415V output distribution. It uses AN (Air Natural) cooling or thermal design data where specified. This series description presents the application, construction, protection, and specification details in finished product copy.
Modern Standard and Retrofit Strategy
Modern Standard and Retrofit Strategy summarizes the protection, safety, or standard-related details that matter during engineering selection.
The 160 kVA Dry Type Transformer is engineered to meet the evolving demands of light industrial and commercial distribution. As international standards shift towards the R10 capacity series, this unit serves as the technical baseline for modern indoor power.
This unit functions as the direct IEC-standard successor to the legacy 150kva dry type transformer often found in older facilities. In retrofit scenarios, it solves the obsolescence issue by fitting into the same physical footprint while delivering an additional 6-7% ampacity buffer. This extra margin is critical for modern installations, allowing for the necessary "derating" when powering harmonic-rich LED lighting or IT loads without risking overheating.
VPI Technology: The "Open-Winding" Advantage
For indoor cast-resin transformer duty, vPI Technology: The "Open-Winding" Advantage is treated as a practical design and selection point rather than generic catalog wording.
Unlike solid cast resin units, this is a specialized vpi type transformer (Vacuum Pressure Impregnated). The coils are vacuum-cycled with high-temperature polyester varnish rather than being potted in a mold. This process ensures the varnish penetrates deep into the winding interstitials, bonding the conductors into a rigid, vibration-resistant mass without adding thermal insulation bulk.
160 kVA VPI transformer open-winding coil structure for superior.
Direct air cooling.
Airflow Dynamics: Unlike Cast Resin units where heat must travel through a thick epoxy layer, the VPI design exposes the winding insulation directly to the air stream. This "direct-cooling" architecture significantly reduces the winding gradient temperature, allowing the unit to recover faster from thermal spikes.
Compact & Lightweight: Without the heavy mass of epoxy resin, this unit is significantly lighter (often 15-20% less weight). This reduces structural loading on mezzanine floors or suspended platforms during installation.
Technical Data Sheet
Technical Data Sheet provides selection data that helps compare ratings, voltage classes, and installation requirements.
Technical Parameter.
Specification Data.
160 kVA (Replaces 150 kVA).
Insulation Technology.
VPI (Vacuum Pressure Impregnated).
Class H (180°C) or Class C (220°C).
Environmental Durability
For indoor cast-resin transformer duty, environmental Durability is treated as a practical design and selection point rather than generic catalog wording.
While this is an open-ventilated dry transformer, the VPI varnish creates a tough, elastic coating over the windings. This protective layer is cured at high temperatures to ensure it is impervious to moisture, salt fog, and industrial dust. It provides excellent dielectric strength while allowing the coil to expand and contract thermally without the risk of cracking-a common concern with rigid cast systems in extreme temperature cycles.
Ideal Application Scenarios
Ideal Application Scenarios connects the product rating with the field conditions, enclosure layout, and distribution role it is normally selected for.
The VPI design is particularly favored in sectors where weight and repairability are concerns.
Lightweight 160 kVA VPI dry type transformer installed on an.
Offshore platform.
Marine & Offshore: Due to its lighter weight and resistance to vibration (the varnish bonds the coil into a solid unit).
Commercial Retrofits: Replacing failed units in tight electrical rooms where moving heavy cast resin equipment is difficult.
Data Processing: Serving distinct server rows where Class H insulation allows for higher ambient operating temperatures.
Electrical and Mechanical Data
The table data is organized for quick rating comparison, project specification, and transformer selection.
Technical Parameter
Specification Data
Rated Power
160 kVA (Replaces 150 kVA)
Insulation Technology
VPI (Vacuum Pressure Impregnated)
Insulation Class
Class H (180°C) or Class C (220°C)
Primary Voltage
Up to 11 kV
Secondary Voltage
400V / 415V
Cooling Method
AN (Air Natural)
Winding Material
Aluminum or Copper Foil
Fire Behavior
Self-extinguishing (Low fire load)
Standard
IEC 60076-11
Product Detail Images
160 kVA VPI transformer open-winding coil structure for superior direct air cooling.Lightweight 160 kVA VPI dry type transformer installed on an offshore platform.