Tranfoji na ƙarfi mai tsakiyar kuka 800kVA 1000kVA 1250kVA 1600kVA 2000kVA 2500kVA

Bayanan:

Foil Coil: Naamfuta na kula da kasa kasa ta kape, tare da F-class turn insulation, low voltage winding yana kula ne a cikin special low-voltage foil winding machine. Foil coil yana ba da sakewa ga masu gaba-gaban short-circuit stress, ampere turn unbalance, poor heat dissipation, spiral angle da kuma unsteady manual welding quality saboda low voltage da large current coil. A kan sama, tsakiyar kula na biye da cast resin, solidification don in yi shape, moisture-proof da anti-fouling, lead for copper bar yana weld ne a cikin argon arc welding automatically. Temperature Control Device: Transformer yana amfani da BWDK series of signal thermometer. Temperature components suna fito a tsakiyar kasa kasa ta low-voltage coil, suna iya tabbatar da temperature na separate phase coil automatically da kuma continuously, kuma suna da functions of over-temperature alarm da trip.

Muhimmanci:

• Flame retardant, non-pollution, zai iya sauka daidai a kan load center.

• Maintenance-free, easy to be installed, low operating costs.

• Enclosure yana da good moisture resistance, transformer zai iya fara aiki biliyan haka 100% humidity a kan normal operation baya pre-drying.

• Low loss, light weight and small volume, low noise, good dissipation of heat, zai iya yi 150% rated load operation under forced air cooling conditions.

• Equipped with a complete temperature protection control system to provide reliable protection for the safe operation of transformers.

• High reliability. The results of checking for the products that has been put into operation show that the reliability index has reached the international advanced level.

Model and Meaning：

Parameter：

6kV, 10kV& 30kVA-2500kVA 

The load losses listed in the table are the values of the reference temperature for different insulation systems in parentheses; The load losses under other insulation system temperatures that are not included in the table should be according to their respective reference temperatures, the corresponding calculation is based on the"- 155 ℃ (F)" insulation system temperature data.

Notes: The Dimension and weight will be changed according to the requirements. 

 20kV & 50kVA-2500kVA 

20kV & 50kVA-2500kVA

35kV & 50kVA-2500kVA

How resin-insulated dry-type transformers are cooled？

Natural Air Cooling (AN)：

Natural air cooling is the most common cooling method, applicable to resin-insulated dry-type transformers with relatively low power. This method utilizes the natural convective air flow to dissipate heat.

Working Principle：

• Air Convection: During the operation of the transformer, heat will be generated, which will cause the temperature of the surrounding air to rise. The hot air will ascend, and the cold air will flow in to replace it, thus forming natural convection.

• Heat Sinks: To enhance the heat dissipation effect, the outer surface of the transformer is usually designed with heat sinks or cooling fins to increase the surface area and improve the heat dissipation efficiency.

• Ventilation Holes: The casing of the transformer is designed with ventilation holes to ensure air circulation and further improve the heat dissipation effect.

Forced Air Cooling (AF)：

Forced air cooling is applicable to resin-insulated dry-type transformers with relatively high power. It improves the heat dissipation efficiency by forcing air to flow with the help of fans.

Working Principle：

• Fans: Fans are installed near the transformer. The fans blow the external cold air into the interior of the transformer to carry away the heat.

• Air Duct Design: Air ducts are designed inside the transformer to ensure that the air can flow evenly through each heat-generating part, thus enhancing the heat dissipation effect.

• Temperature Monitoring: Usually equipped with temperature sensors, it monitors the temperature of the transformer in real time. According to the temperature changes, it automatically controls the start and stop of the fans to achieve intelligent cooling.