Fully sealed three phase pad mounted transformer with its high reliability, long service life and low maintenance cost, has become the preferred equipment for modern power distribution systems, especially suitable for space-constrained or harsh environments.
Overview:
Fully sealed three phase pad mounted transformer is an outdoor-installed, maintenance-free distribution device, widely used in urban power grids, industrial zones, commercial centers and renewable energy systems. Its core feature is the adoption of a fully sealed structure, which prevents oil from coming into contact with air and ensures long-term stable operation.
Product features:
Fully sealed insulation:
It adopts a fully sealed and fully insulated design, eliminating the need for additional insulation distance. This can effectively ensure personal safety and operates safely and reliably, requiring almost no maintenance.
Strong overload capacity:
It allows a certain degree of overload, such as being overloaded twice for 2 hours or 1.6 times for 7 hours without affecting the service life.
The protection function is complete:
The high-voltage side adopts dual fuse protection. The insertable fuse is a dual-sensitive fuse (with both temperature and current protection functions), and the backup current-limiting protection fuse is used to protect the high-voltage side and internal faults of the box transformer, reducing the operating cost.
Flexible installation:
Small in size and compact in structure, it is easy to install. It can be used for both ring network power supply and terminal power supply, and the conversion is very convenient. It can flexibly adapt to different power supply scenarios.
Good environmental adaptability:
The box body adopts anti-corrosion design and special spray painting treatment, featuring the “three-proof” functions of anti-condensation, anti-salt spray and anti-mold, and can adapt to various harsh environments such as high temperature and high humidity.
Core advantage:
Maintenance-free
The fully sealed structure does not require regular oil level checks or replacement of desiccants.
Long service life
The oil is isolated from the air, delaying the aging of insulation, and its service life can reach 20 to 30 years.
High reliability
Explosion-proof design (pressure relief valve), strong overload capacity, suitable for high-load scenarios.
Low loss
It adopts high-quality silicon steel sheets and copper/aluminum windings, meeting the IE3/IE4 energy efficiency standards.
Easy to install
It can be directly installed on the concrete base without the need for an additional distribution room.