Resin-cast three-dimensional wound core dry-type transformer
This series of products adopts a three-dimensional wound core component. After assembly and annealing, the three-phase magnetic circuit is completely symmetrical, the magnetic resistance is greatly reduced, and the excitation current and no-load loss are significantly reduced.
- Product Description
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Resin-cast three-dimensional wound core dry-type transformer Overview
Product Introduction
This series of products adopts a three-dimensional wound core component. After assembly and annealing, the three-phase magnetic circuit is completely symmetrical, the magnetic resistance is greatly reduced, and the excitation current and no-load losses are significantly reduced. The upper and lower clamps are integral, protecting the entire core from external forces during manufacturing, transportation, and installation. With pressure clamping and supporting coils, it improves the ability of the transformer to withstand axial electromotive force during a sudden short circuit. The steel structure clamp effectively suppresses noise oscillation within the clamp, keeping the transformer noise in an ideal state. The epoxy resin coil conductor and resin insulation layer form a complete rigid body, with good mechanical properties and strong short-circuit resistance. The high withstand voltage strength of the epoxy resin and the fact that the entire coil conductor is encapsulated by the epoxy resin solid insulation layer make it difficult for moisture to permeate. It completely prevents the conductor from being damaged by various harmful substances and corrosive chemicals, providing strong moisture and dirt resistance, making the product safer and more environmentally friendly. With low no-load loss, low excitation current, low noise, small size and light weight, it is widely used in high-rise residential buildings, airports, docks, subways, hospitals, power plants, metallurgical industries, shopping malls, densely populated areas, and petrochemical plants, nuclear power plants, etc.
Model Description

Conditions of Use
Altitude ≤1000m
Ambient temperature: -10°C~+45°C Indoor, Outdoor wind speed: ≤35m/s
Relative humidity: ≤90% (+25°C)
Earthquake Resistance
Horizontal acceleration: ≤3.0m/s
Vertical acceleration: 1.5m/5
Product Features
★Significant energy-saving effect: The three-dimensional triangular wound core is seamless, without high energy consumption areas, giving full play to the high magnetic conductivity characteristics of high-quality core materials, greatly reducing losses caused by air gaps at the joints.
★Miniaturization: High space utilization coefficient. The transformer adopts a triangular structure, so the volume is smaller than conventional transformers, with a compact structure, beautiful appearance, and small footprint.
★Low noise: Because the three-dimensional triangular wound core is made by winding several trapezoidal materials in sequence, the silicon steel strips are tightly wound together, and the magnetic conduction direction is completely consistent with the magnetic circuit direction of the core. During operation, the vibration is small, which can solve the noise caused by the inconsistency of the magnetic circuit in the stacked core, and the noise can be reduced to the minimum.

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High-efficiency energy conversion design
The power transformer adopts high-magnetic silicon steel sheets and optimized winding structure to achieve an energy conversion efficiency of more than 98.5%, and the no-load loss is 30% lower than that of traditional products. The specially designed cooling channel keeps the temperature rise within 45K to ensure continuous and stable operation. -
Intelligent monitoring system
The transformer with integrated IoT technology is equipped with 12 real-time monitoring points, which can accurately collect key parameters such as temperature, oil level, vibration, etc., and realize abnormal warning through the cloud platform, and the fault response time is shortened to within 15 minutes. -
Environmentally friendly insulation solution
The new plant ester insulating oil is completely biodegradable, with a flammability of more than 320℃. Combined with specially treated insulating paper, the environmental protection level of the transformer is raised to the highest standard, and the service life is extended to 30 years.
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