The ZGS series pad mounted transformer is a high-performance Compact Transformer Substation and a classic American Type Prefabricated Substation, manufactured in full compliance with international IEC standards, and is widely applied in power distribution systems across America, the Philippines and other regions. This American Type Prefabricated Substation features a core design where high-voltage load switches, fuses and other key protection components are fully immersed in transformer insulating oil, realizing integrated insulation and arc-extinguishing, and is available in two mainstream power supply types: loop feed type and radial feed type, which can be customized according to clients' actual power distribution demands.
As a professional Compact Transformer Substation, it inherits the structural and performance advantages of American-style prefabricated power equipment, and is equipped with a complete set of core configurations including load switch, tap changer, thermometer, oil valve, oil gauge, oil drain valve, pressure relief valve, earth terminal, high-voltage bushing, low-voltage bushing, parking stand, bayonet fuse and current limiting fuse. The integrated configuration design ensures the equipment's complete functionality and stable operation, perfectly matching the medium and low-voltage power distribution needs of various scenarios.
Compact Transformer Substation Core Product Features
- Integrated Compact Structure:The Compact Transformer Substation adopts an integrated streamlined design with small size and compact layout, no need for additional enclosure and auxiliary facilities, occupying minimal installation space. The American Type Prefabricated Substation’s structural design also enables convenient on-site installation and flexible layout, suitable for both outdoor open-air and narrow space power distribution scenarios.
- Superior Electrical Performance:This American Type Prefabricated Substation features low noise and low energy loss during operation, effectively reducing power consumption and environmental noise pollution. It also has strong anti-short-circuit and overload capacity, which can withstand short-term extreme load impacts, ensuring continuous and stable power supply for the power distribution system, and the performance meets the high standards of Compact Transformer Substation for outdoor operation.
- Fully Insulated & Sealed Design:The Compact Transformer Substation adopts a fully insulated and fully sealed structure, with all high-voltage components immersed in insulating oil, realizing comprehensive insulation protection and effectively preventing dust, moisture and foreign matter intrusion. The American Type Prefabricated Substation’s hermetic design also makes the equipment safe and reliable in operation, achieving a maintenance-free operation mode and greatly reducing daily operation and maintenance costs.
- Dual Power Supply Mode Optional:Supporting both loop feed and radial feed power supply modes, the American Type Prefabricated Substation can be flexibly selected according to clients' power grid wiring schemes and on-site power distribution requirements. The two modes are compatible with the internal structure of the Compact Transformer Substation, no need for large-scale structural adjustment, and the customization is simple and efficient, adapting to diverse power grid connection needs.
- Complete Supporting Configuration:Equipped with a full set of functional and protective components, the Compact Transformer Substation covers all operation, monitoring and protection links of the transformer. The integrated configuration of temperature monitoring, pressure relief, oil level detection and overcurrent protection ensures the equipment's safe operation, and the American Type Prefabricated Substation’s standardized component matching also facilitates subsequent replacement and upgrading of parts.
- Strong Environmental Adaptability:The American Type Prefabricated Substation is designed for outdoor long-term operation, with the Compact Transformer Substation’s sealed oil-immersed structure effectively adapting to different climatic conditions such as high temperature, humidity and dust. The corrosion-resistant external components and reliable insulating system ensure stable operation in various outdoor power distribution environments, with no additional protective measures required for conventional scenarios.
| Item |
Unit |
Technical Parameter |
| Rated voltage |
kV |
10/0.4(HV/LV) |
| Max operating voltage |
kV |
12(HV) |
| Rated frequency |
Hz |
50 |
| Rated capacity |
kVA |
20~2500 |
| OFF-load tap changer |
|
10+2X2.5%/0.4kV |
| Connnection symbol |
Dyn11 |
| Transformer loss |
Conform to requirements of S11 transformer |
| 1 min power frequency withstand voltage |
kV |
35 |
| Lightning impulse withstand voltage |
kV |
75 |
| Cooling mode |
|
ONAN |
| Ambient temperature |
℃ |
-25-+45 |
| Allowable temperature of coil |
℃ |
55 |
| Noise grade |
dB |
55 |
| Breaking current of Hy backup fuse |
kA |
50 |
| Breaking current of plug-in type fuse |
kA |
2.5 |
| lP class |
|
IP23D |
American Type Prefabricated Substation Additional Application
- Space-saving, flexible installation:The Compact Transformer Substation features a compact structure and small footprint, which can be flexibly installed in narrow spaces such as community green belts and commercial street side strips, without occupying valuable urban land resources, perfectly matching the dense land layout characteristics of urban residential and commercial areas.
- Low noise, non-interfering operation:The equipment has the performance of low-noise operation, which can effectively avoid affecting residents' daily life and the normal business activities of commercial street shops, meeting the high requirements of urban dense living and business scenarios for environmental noise control.
- Sealed maintenance-free, reduced on-site interference:Adopting a fully sealed and maintenance-free structural design, the frequency of on-site operation and maintenance is greatly reduced, avoiding the impact of equipment maintenance on the normal living order of the community and the business order of the commercial street.
- Dual power supply modes, perfect adaptation to urban power grid:As an American Type Prefabricated Substation, it supports loop feed and radial feed dual power supply modes, which can be flexibly matched according to the actual wiring scheme of the urban municipal power grid, realizing reliable grid connection and ensuring uninterrupted power supply for residential buildings, shops, supermarkets and public facilities in the area.
- Strong load adaptability, coping with power consumption peak and valley:With excellent anti-short-circuit and overload capacity, the equipment can adapt to the large fluctuations of power consumption load in urban communities and commercial streets during peak and valley periods, ensuring stable power supply under different load conditions.
American Type Prefabricated Substation Detailed Photos
