Product overview:

• High reliability of operation verification in more than 50 countries and regions around the world.

• Mainly used in 33kV distribution network, industrial and mining enterprises and civil building power supply and distribution system.

• Roducts are mainly exported to Southeast Asia, the Middle East, Africa, South America and other countries and regions.

• Standards: IEC 60076 series, IEC 6013, IEC 60214-1, IEC 60296; Gb1094-1996, GB/T6451-2008, GB/T7597-2007, etc.

Product advantages
Leading technology

• High pressure copper tape winding technology, improve lightning resistance.

• Low voltage copper foil winding technology, high quality A class insulation material insulation.

• Small magnetic leakage, high mechanical strength, strong short circuit resistance.

• Iron core 45° full oblique joint step laminated structure.

The shell

• Mitsubishi laser cutting machine and CNC punching, reducing, folding and other equipment to ensure the accuracy of processing.

• ABB robot automatic welding, laser detection, to avoid leakage, qualified rate of 99.99998%.

• Electrostatic spray treatment, 50 years of paint (coating corrosion resistance within 100h, hardness ≥0.4.

• Fully sealed structure, maintenance-free and maintenance-free, normal operation life of more than 30 years.

The iron core

• The core material is high quality cold rolled grain oriented silicon steel sheet with mineral oxide insulation (from  Baowu Steel Group, China).

• Minimize loss level, no-load current and noise by controlling the cutting and stacking process of silicon steel sheet.

• The iron core is specially reinforced to ensure the transformer structure is firm during normal operation and transportation .

winding

•  Low voltage winding is made of high quality copper foil, excellent insulation resistance.

•  The high voltage windings are usually made of insulated copper wire, using the patented technology of Hengfengyou Electric.

• Very good resistance to radial stress caused by short circuit.

High quality material

•  Baowu Steel Group production of silicon steel sheet.

•  High quality anaerobic copper from China.

•  CNPC (Kunlun Petroleum) High quality transformer oil (25#).

Other instructions

•  The low-voltage outgoing terminal is tinned copper bar.

•  The high-voltage outlet terminals are ring tinned bolts.

•  Default no-load voltage regulator NLTC (OLTC can be customized) tap switch 5 or 7.

• Transformers above 630KVA are protected by gas relays.

Ordering instructions

• Main parameters of transformer (voltage, capacity, loss and other main parameters).

• Transformer operating environment (altitude, temperature, humidity, location, etc).

• Other customization requirements (tap switch, color, oil pillow, etc).

• The minimum order quantity is 1 sets, worldwide delivery within 7 days.

• Normal delivery period of 30 days, worldwide fast delivery.

What is high-voltage copper strip winding technology？

Definition:
High - voltage copper - tape winding technology refers to the use of copper tape as the winding material in the manufacturing of high - voltage transformers and reactors. The copper tape is wound layer by layer around the iron core or the bobbin through mechanical or automated equipment to form the required high - voltage winding. This technology can ensure the uniformity and compactness of the winding and improve the electrical performance and mechanical strength of the equipment.

Technical Features:

• High Conductivity: Copper tape has excellent electrical conductivity, which can effectively reduce the resistance loss of the winding and improve the efficiency of the equipment.

• Mechanical Strength: Copper tape has relatively high mechanical strength and can withstand the impact of high voltage and large current, improving the reliability and service life of the equipment.

• Uniformity: Through precise winding processes, the uniform distribution of each layer of copper tape can be ensured, reducing the problems of local overheating and non - uniform electric field.

• Compactness: Copper - tape winding can achieve a higher winding density, making the equipment more compact in volume and saving space.

• Insulation Performance: During the copper - tape winding process, insulating materials can be added between each layer of copper tape to ensure good electrical insulation performance.