Year1
- 额定电压：
- 12KV
- 额定电流：
- 630A
- 额定频率：
- 50HZ
This product has a wide range of uses, 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 everything In indoor configuration system.
Working conditions of dry-type transformer CB:
Installation height: the altitude does not exceed
Waveform of power supply voltage: similar to sine wave
Symmetry of multi-phase power supply voltage: the symmetry of multi-phase transformer The connected supply voltage should be approximately symmetrical.
Ambient temperature:
Maximum temperature + Celsius
Maximum daily average temperature + Celsius
Maximum annual average temperature + Celsius
Minimum temperature Celsius (applicable to indoor transformers) .
Dry-type transformer CB structural features:
: Iron core
The iron core is made of high-magnetic permeability and high-quality grain-oriented cold-rolled silicon steel sheets, & fully inclined step joints. The iron core is made of special It has a square tube pull plate structure, the core columns are tied with insulating tape, and the intimate surface is coated with special resin to prevent moisture and rust, which effectively reduces no-load loss, no-load current and core noise.
Safe, flame retardant, non-polluting, and can be installed directly in the load center.
Maintenance-free, easy to install, and low overall operating cost.
It has good moisture-proof performance and can operate normally under % humidity. It can be put into operation without pre-drying after shutdown.
Low loss, low partial discharge, low noise, high heat dissipation capacity, and equipped with a complete temperature protection control system provide reliable guarantee for the safe operation of the transformer.
High reliability. According to operational research on products that have been put into operation, the reliability indicators of the products have reached the international advanced level.
.Foil coil
The low-voltage winding uses a whole section of copper foil, and is wound on a special low-voltage foil winding machine along with the turn insulation. Foil coils better solve the outstanding problems of low-voltage and high-current coil wire-wound products such as large short-circuit stress, unbalanced ampere-turns, poor heat dissipation, winding helix angle, and unstable manual welding quality. At the same time, our company's winding ends are potted with resin and solidified to prevent moisture and dirt.
. Temperature control device
The transformer adopts B series signal thermometer. The temperature measuring element is buried in the upper half of the low-voltage coil, which can automatically detect and continuously display the operating temperature of each of the three-phase coils. And it has over-temperature alarm and trip functions.
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