Rating (KVA) |
High vologe (kva) |
No Load Loss | On Load Loss |
oil weight (kg) |
total weight (kg) |
15 |
34.5/19.92 13.8/8 13.2/7.6 12.47/7.2 or others |
50 | 195 | 45 | 294 |
25 | 80 | 290 | 68 | 362 | |
37.5 | 106 | 360 | 75 | 476 | |
50 | 135 | 500 | 93 | 553 | |
75 | 190 | 650 | 132 | 672 | |
100 | 280 | 1010 | 230 | 714 | |
167 | 435 | 1530 | 265 | 913 | |
250 | 550 | 2230 | 325 | 1106 |
Business Cooperation
50 kva Single Phase Pad Mount Transformer FAQ
1. What is a 50kVA single-phase pad-mounted transformer?
A 50kVA single-phase pad-mounted transformer is an outdoor electrical distribution transformer designed to step down utility voltage (e.g., 7.2kV, 14.4kV) to lower voltages (e.g., 120/240V) for residential or light commercial use. It is mounted on a concrete pad for stability and safety.
2. What are the typical primary and secondary voltages?
- Primary voltage: Commonly 7.2kV, 14.4kV, or other utility distribution voltages.
-Secondary voltage: Typically 120/240V split-phase for residential applications.
3. Where is this 50kVA single-phase pad-mounted transformer used?
It is used in underground distribution systems, serving homes, small businesses, or rural areas where overhead lines are impractical.
4. What are the key features of a pad-mounted transformer?
Enclosed, tamper-resistant design
Oil or dry-type insulation (liquid-filled is more common)
Pad-mounted for easy access and maintenance
Lightning and surge protection
5. How efficient is a 50kVA single-phase transformer?
Efficiency typically ranges between 97-99%, depending on load and design. Newer models meet DOE (Department of Energy) efficiency standards.
6. What are the installation requirements?
- A level concrete pad (typically 4’ x 4’ or as per utility specs)
- Proper clearance from walls/obstructions (usually 3-5 feet)
- Compliance with local electrical codes and utility regulations
7. How is maintenance performed?
Regular inspections for oil leaks (if oil-filled), corrosion, or damage
Thermal imaging checks for hotspots
Oil testing (for liquid-filled units) every few years
8. What safety features are included?
Lockable doors to prevent unauthorized access
Overload and fault protection
Pressure relief vents (for oil-filled transformers)
9. What is the expected lifespan?
With proper maintenance, a pad-mounted transformer can last 30-40 years or more.
10. Can it be used for renewable energy applications?
Yes, it can integrate with solar or wind systems, stepping up/down voltage as needed for grid connection.
WhatsApp:
+86 158 5325 2696(Jack)
+86 135 8926 2999(MARTIN)
Tel:+86-532-87936206
Fax:+86-532-87936207
Email: info@hengfengyou.com
Address: No.638,Zhongcheng Road, Chengyang District, Qingdao City,China
Leave a message now - get the latest industry insights, star products, and success stories of hengfengyou electric