Product Details

Scope of application

This product has a wide range of applications, especially suitable for use in places with high fire protection requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings and all indoor configuration systems.

Model meaning

Working conditions

Installation of high seat: the altitude does not exceed 1000m;

Waveform of power supply voltage: similar to sine wave;

Polyphase supply voltage symmetry: The supply voltage connected to the polyphase transformer should be approximately symmetrical.

Ambient temperature: maximum temperature +40°C; Maximum daily average temperature +30°C; Maximum annual average temperature +20°C; Minimum air temperature -25°C(for indoor transformers).

Structural features

* Core iron

The core is made of high magnetic permeability and high-quality grain oriented cold bonded silicon steel sheet, 45° general step joint, the core is made of special square tube pull plate structure, the core column is bound with insulation tape, and the surface of the core is coated with special resin to prevent rust prevention, which effectively reduces no-load loss, no-load current and core noise.

Safe, fire retardant, no pollution, can be installed directly in the load center.

Maintenance-free, easy installation, low overall operating cost.

Good moisture-proof performance, it can operate normally under 100% humidity, and can be put into operation without pre-drying after shutdown.

Low loss, low local discharge, low noise, strong heat dissipation capacity, equipped with a perfect temperature protection and control system, to provide reliable guarantee for the safe operation of the transformer.

High reliability. According to the operation study of the products that have been put into operation, the reliability index of the products has reached the international advanced level.

* Foil coil

The low voltage winding is made of whole copper foil, together with F grade turn insulation, on a special low voltage foil winding machine. The foil coil solves the outstanding problems of low voltage and high current coil winding, such as large short circuit stress, unbalanced ampere-turns, poor heat dissipation effect, spiral winding Angle and unstable welding quality. At the same time, the end of the winding of our company is sealed with resin, solidified and formed to prevent lake and pollution.

* Temperature control device

The transformer adopts BWDK series signal thermometer, and the temperature measuring element is buried in the upper part of the lowvoltage coil, which can automatically detect and return to display the respective working humidity of the three-phase coil. And it has ultra high temperature alarm and tripping function.

* Voltage conversion

The connection piece can realize the conversion of 10kV and 20kV voltage in different gears, which is suitable for the voltage requirements of 10kV and 20kV system respectively.

Main technical parameters

SCB13 6kV, 10kV class 13 dry-type non-excitation voltage regulation distribution transformer no-load loss and load loss

Note: The load loss listed in the table is the value of the reference temperature of different insulation systems in brackets (see GB1094.11). The load loss of other insulation system temperatures not included in the table shall be converted according to the respective reference temperature and the data of the humidity of the insulation system of "155°C (F)" as a reference.