11kv And 33kv Transformer Sold To Ghana
Today, TSTY will deliver transformers ordered by customers in Ghana. The customer ordered an 11kv/0.433 and 33kv/0.433kv oil-immersed transformer.
Analysis of core needs of the Ghana market
Ghana mainly uses a 50Hz frequency system, and the terminal voltage is generally 433V three-phase electricity. The two 11kV/433V and 33kV/433V dual voltage specifications ordered by the customer cover the medium-voltage grid access needs. 11kV side: suitable for urban distribution networks and small and medium-sized industrial areas; 33kV side: matching regional substation output to meet the needs of mining areas/large factories.
Technical features of 11kV and 33kV transformers
Oil-immersed transformers are particularly suitable for Ghana's climatic conditions and use environment due to their high reliability, easy maintenance and long life. 11kV/0.433kV oil-immersed transformers are the most common models in Ghana's distribution network. 33kV/0.433kV oil-immersed transformers are usually larger in capacity and are mainly used in regional substations. TSTY provides voltages ranging from 15-31500KVA capacity, covering the full range of power distribution needs.
TSTY Transformer Features
1. TSTY transformers use high-quality cold-rolled silicon steel sheets as core materials, which have the characteristics of low no-load loss;
2. The high-voltage winding uses copper windings, which can achieve lower resistance losses, have excellent weather resistance and corrosion resistance, and can operate reliably and stably in harsh environments, greatly reducing the maintenance cost of the transformer.
3. The insulation system uses high-temperature resistant insulating paper and insulating oil to ensure stable operation in Ghana's high temperature environment.
4. TSTY has strengthened the lightning protection design of the transformer and installed lightning arresters in response to the climate characteristics of Ghana's frequent lightning.
5. The 33kv product adopts an advanced corrugated oil tank design to achieve full sealing, greatly reducing maintenance requirements. The cooling system adopts ONAN (oil-immersed self-cooling) method, and some large-capacity models are equipped with an air cooling system (ONAF) to ensure stable operation in Ghana's hot climate.
6. According to the characteristics of large voltage fluctuations in the Ghanaian power grid, a model with on-load voltage regulation (LTC) function is specially designed. The output voltage can be adjusted within the range of ±5% or ±10%, ensuring that end users receive a stable voltage supply.