What is an pad mounted transformer? What are the advantages and disadvantages of pad mounted in application

Writer： Hengfeng you electric Time：2023-04-03 views：times

Pad Mounted Transformer, as the name suggests, is an improved box transformer developed on the basis of the Pad Mounted Transformer. Is particularly suitable for load centers in urban power grids, reducing losses and improving power supply quality. Mounted type substations have been widely used in urban power grids in developed countries abroad,
 
The following is explained by Hengfengyou Electric Engineer for Pad Mounted Transformer,that include abb pad mounted transformer，single phase pad mounted transformer，3 phase pad-mounted transformer，residential pad-mounted transformer, cooper pad mounted transformer etc.
 
 
Characteristics
 
Wiring form of Mounted transformer: one or two 10KV incoming lines; A single transformer with a capacity of 500KVA~800KVA is generally selected; 4 to 6 low-voltage outgoing cables.
 

Main components
 
 
Transformer, 10KV ring network switch, 10KV cable plug, low-voltage pile head box and other main components. It has the advantages of small size, low cost, and easy installation.
 
 
 
Advantages and disadvantages
 
Advantages: small size, compact structure; Fully sealed oil tank, fully insulated design, safe and reliable operation; Both loop network and terminal power supply can be used, with convenient operation and reliable power supply; Strong overload capacity and excellent resistance to sudden short circuits; Good impact resistance; Energy saving, low loss, no higher than the new S9 loss value; The cable head can operate with a load current of 200A, with a long mechanical and electrical life.
 
 
 
Disadvantages: Low power supply reliability; Without electric mechanism, it is impossible to add power distribution automation devices; No capacitor device, unfavorable for reducing line loss; The noise is higher than Type III and V stations because Type III and V stations place transformers indoors to provide sound insulation; In addition, the concentrated electromagnetic radiation of Type III and Type V stations is decomposed into multipoint radiation; Due to the different civil engineering foundations of box transformers with different capacities, it is inconvenient to increase the capacity of box transformers; When the box transformer is overloaded or users increase capacity, the civil engineering needs to be rebuilt, which will have a long power outage time, increasing the difficulty of the project.
 
 
 
The box design fully considers the requirements of waterproofing, safety, and ease of operation. The protective doors of the high and low voltage chambers are mechanically interlocked. Only when the low voltage protective door is opened can the high voltage protective door be opened to ensure the safety of operating and maintenance personnel. The box body is made of high-quality carbon steel plates and is precision processed through various processes. After strict surface treatment, the interior and exterior surfaces of the box are treated with advanced electrostatic powder spraying technology for three times. The paint layer is solid, wear-resistant, waterproof, and resistant to ultraviolet radiation.


 If you have more questions about the pad mounted transformer, please visit www.hengfengyou.com to consult our sales personnel at Hengfengyou Electric.