How can the ventilation and dust prevention of the European style box transformer casing be achieved together?
Jun 15, 2023
How can the ventilation and dust prevention of the European style box transformer casing be achieved together?
The heat generated by the shell of a European style box transformer mainly comes from two sources: 1. the heat generated by the operation of electrical equipment inside the box transformer; 2. The heat transmitted by external sunlight radiation into the interior of the box.
The two mutual constraints of the European style box transformer casing are ventilation and dust prevention. If the casing is designed to be sealed, the internal temperature of the casing is too high, which directly affects the normal operation of electrical equipment and components. To reduce the temperature, it is necessary to strengthen ventilation and heat dissipation. Therefore, ventilation and heat dissipation issues are important issues in the European style box transformer casing.
How can the ventilation and dust prevention of the European style box transformer casing be achieved together?
1. Material improvement: Foreign box transformer casing materials usually use a mixture of glass fiber and cement. This material is heat-resistant, compressive, UV radiation resistant, moisture-resistant, flame retardant, and corrosion-resistant, and is not prone to condensation, making it easy to form.
2. The main research direction of current transformer manufacturers is to reduce the heating capacity of transformers by using transformers with lower losses and lower heat generation.
3. Heat dissipation fins can be installed on the three side walls of the transformer to reduce the temperature rise of the transformer by increasing its natural heat dissipation area.
3. Add cooling and blowing equipment, add sufficient louvers to the casing of the box transformer for air circulation, and use a corrugated plate structure on the wall to increase the heat dissipation area while also strengthening the structural strength; Electric fans are used to enhance the air circulation inside the box, improve heat dissipation efficiency, and air conditioning and dehumidification devices are installed inside the box. The operation of the equipment is not affected by natural climate and external pollution, ensuring operation in harsh environments.
4. Adopting a micro boost motor device, the interior of the box is in a micro boost state, effectively preventing dust from entering.
5. Adopting components that can adapt to high-temperature operation, with the development of domestic technology and the emergence and application of various new materials, can improve component performance and adapt to various harsh environments.
The ventilation and dust prevention of the enclosure of European style box transformers can be achieved through the above measures. Only by doing a good job in ventilation and dust prevention can a better operating environment be provided for internal electrical equipment, ensuring the normal power supply of electrical equipment
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| TECHNICAL REQUIREMENTS AND CHARACTERISTICS OF EQUIPMENT | ||||
| Re:82 sets compact substation | ||||
| Item- No. |
Schedule of Technical Data | Unit | Required (at 3000 m |
Offered Data |
| System Data Requirements | ||||
| 1.05.10 | Stranded copper conductor for earthing | |||
| Manufacturer | - | |||
| Material | - | copper | ||
| Cross-section | mm2 | >50 | ||
| Length | m | >40 | ||
| 1.05.11 | Earthing rods | |||
| Manufacturer | - | |||
| Type | - | |||
| Materia! | - | |||
| Length | m | |||
| Sections per rod | pcs | |||
| 1.6 | Compact Substations (Option 1) | |||
| Manufacturer | - | fengyuan | ||
| Type | - | OutDoor | ||
| Overall protection class for complete substation | - | IP 44 | IP 44 | |
| Material of enclosure | - | GI | ||
| Overall dimensions (W x L x H) | ||||
| for S/S with 1x50 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| ■ for S/S with 1x100 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| for S/S with 1x160 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| • for S/S with 1x250 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| Overall weight | ||||
| ■ for S/S with 1x50 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x100 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x160 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x250 kVA transformer | kg | 1000kg. | ||
| 1.6.1 | 20 kV Switchgear equipment | |||
| Manufacturer | - | Chnt / Equivalent | ||
| Type | - | Indoor RMU | ||
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