200 KVA Dry Type Transformer

Features
200 KVA Dry Type Transformers are our company's introduction of foreign advanced technology and independently developed SC9, SCB9 series and SC10, SCB10 series thin-insulated dry-type transformers with fillers. Since the coils are encapsulated by epoxy resin, they are refractory, fireproof and explosion-proof. It is maintenance-free, pollution-free, small in size and can be installed directly in the load center. At the same time, the scientific and reasonable design and pouring process make the product smaller in partial discharge, low in noise, and strong in heat dissipation. It can operate at 140% rated load for a long time under forced air cooling conditions, and is equipped with an intelligent temperature controller to prevent faults. Alarm, over-temperature alarm, over-temperature trip and black gate functions, and connected to the computer through the RS485 serial interface, which can be monitored and controlled centrally.

Product Application
Because 200 KVA Dry Type Transformer have the above characteristics, they are widely used in power transmission and transformation systems, such as hotels, airports, high-rise buildings, commercial centers, residential areas and other important places, as well as subways, smelting power plants, ships, ocean drilling platforms and other environments Bad place.

Product Part:
Core
The iron core is made of imported high-quality cold-rolled silicon steel sheets with a fully beveled final structure. The core pillars are bound with F-grade non-weft adhesive tape. The surface of the iron core is encapsulated with epoxy resin, which reduces no-load loss, no-load current and core noise. Clamps The special surface treatment of the fasteners and fasteners further improves the appearance quality of the product.

High Voltage Winding
The high-voltage winding is vacuum cast with filled epoxy resin, which greatly reduces the amount of partial discharge and improves the electrical strength of the coil. The inner and outer walls of the winding are filled with glass fiber mesh plates, which enhances the mechanical strength of the coil and improves the product's resistance to sudden short circuits. ability, the coil will never crack.
Low Voltage Winding
The low-voltage winding adopts a foil structure, which solves the problem of axial helix angle when winding with wire and makes the ampere-turn more balanced. At the same time, the coil adopts axial cooling air duct to enhance the heat dissipation capacity. TD epoxy resin prepreg is used between the winding layers. , integral solidification forming.

Manufacturing Process
The coil is wound on a high-precision winding machine, and the low-voltage winding adopts a foil winding structure. When the transformer capacity is large, there is a ventilation channel. After winding, it is vacuum dried. The entire pouring and curing process is completely operated in accordance with the process requirements. All processes need to be strictly monitored and adjusted as appropriate. The precision manufacturing process of the pouring makes the coil There are no bubbles or holes, so that the made transformer can achieve high-quality operation results.

Temperature Control System And Air Cooling System
A cross-flow top-blown cooling fan is used, which has the characteristics of low noise, high wind pressure, and beautiful appearance, which enhances the overload capacity of the transformer. The temperature control adopts intelligent temperature controller, which improves the safety and reliability of transformer operation.

Protective Enclosure And Outlet Busbar
The protective shell provides further safety protection for the transformer. The protection levels include IP00, IP23, etc. The shell materials include cold-rolled steel plates, stainless steel plates, etc. for users to choose. Standard busbar discharge lines for low-voltage outlets can be used, either side outlets or top outlets, or Users design special outlet methods.

Transformer Outlet Method
Conventional outlets, standard closed busbars and standard side outlets can be manufactured according to different interface forms, and special outlet methods can also be designed according to user requirements.

Product Standards
GB/T10228-2008 GB109411-2007 JB/T10088-2004 GB4208-1993
Product Name: 200 KVA Dry Type Transformer
Rated high voltage: 10(11,10.5,6.6,6.3, 6) KV
Rated low voltage: 0.4kV
Connection group: Dyn11 or Yyn0
High voltage tap range: ±5% or ±2×2.5%
Insulation level: LI75AC35
Frequency: 50Hz

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