35kV IP23 Dry Type Distribution Transformer Dry Cell Transformer for outdoor

Dry-Type Transformer,Current Limiting Reactors

1.Overview 

Dry-type transformers are mainly composed of high-voltage coils, low-voltage coils, iron cores, clamps and other accessories. They are mainly used in power systems of 35kV and below to boost and reduce voltage.
Our dry-type transformer product series include SC(B)10, SC(B)11, SC(B)12 and SC(B)13. This series of transformers are made of high-quality materials, green and environmentally friendly, and are produced using advanced production and testing equipment and strict technology. The products are safe and reliable, have a long service life, and have a high level of protection. Widely used in power systems, suitable for important or special environmental places such as high-rise buildings, commercial centers, airports, tunnels, chemical plants, nuclear power plants, ships, etc.

 2. Purpose 

• The iron core is made of high-quality cold-rolled silicon steel sheet, with a 7-level stepping structure of full oblique joints, and the core column adopts H-grade non-weft adhesive tape or through-core screw structure. The surface of the iron core is sealed with insulating resin to prevent moisture and rust, and reduce The no-load loss, no-load current and iron core noise are calculated.
• The high-voltage winding is wound by a high-precision automatic winding machine. When the capacity is large, there is a heat dissipation duct. The inner and outer insulation of the winding is filled with glass fiber grid board, which enhances the mechanical strength of the coil.
• The low-voltage winding adopts the foil structure, which solves the problem of the axial helix angle when using wire winding and makes the ampere-turn more balanced.
• The coil is encapsulated with epoxy resin, which is non-flammable, fireproof, explosion-proof, maintenance-free, pollution-free, small in size, and can be directly installed in the load center.
• Adopt advanced electromagnetic design software and casting technology, low partial discharge, low noise, strong mechanical ability, strong short circuit resistance, good thermal performance, and the capacity can be increased by 50% under forced air cooling.
• Equipped with an intelligent temperature controller, which has the functions of fault alarm, over temperature alarm, over temperature trip and black gate, and is connected to the computer through the RS485 serial interface, which can centrally monitor and control the start and stop of the fan.

3. Main features 

• The controller adopts industrial-grade computer platform, dual CPU architecture, multi-layer circuit board processing, stable and reliable operation;
• Adopt full-color LCD and full Chinese display, parameter display, setting and query are convenient and intuitive;
• Accurate adjustment, fast speed, and wide adjustment range, which can be adjusted in the full range of 0-100% rated current;
• Built-in high-voltage grounding line selection module, using residual current increment method and active power method to make line selection fast and accurate;
• Equipped with RS232 and RS485 communication interfaces, which can realize the communication with the host computer and achieve the long-distance signal transmission;
• It can realize the sound and light control alarm function of single-phase ground fault;
• Equipped with a standard parallel port printer, which can realize data printing and grounding information printing;
• With one control and two functions, two sets of arc suppression coils in the same system can be automatically changed according to the operating conditions of the system.

4.Executive standard 

GB 1094.1-2013 ,GB/T 10228-2015 ,IEC 60076.11-2004 ,DIN 42523-1/A1-1996