25 kva single phase pad mounted transformer
Power Rating: 25 kVA
Primary Voltage Ratings: 34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2, 27.6/16, 14.4/7.2, or others
Secondary Voltage Ratings: 120-240/240-480/347/600 or others
H.V. TAP RANGE: ±2×2.5% or others
Winding Material: Copper/Aluminum
CONNECTION TYPE: Radial Feed or Loop Feed
Cooling Method: ONAN
TYPE: Dead front/Live front
BIL: 30-150
Applications: utilities, residential, single family house, commercial district
Standards: CSA IEEE NEMA DOE
Min. order quantity: ≧ 1 set
Factory Services: OEM, ODM, Customized Voltage, Capacity, Enclosures, and Accessories
Packaging Details: International wooden cases or according to the actual transport needs
delivery time： Generally, it is 20-30 days. It is according to the quantity.
Description
The GE Transformer 25kVA Single Phase Pad Mounted Transformer is a high-performance, energy-efficient solution for residential, commercial, and light industrial power distribution. Designed to meet international standards such as IEEE, ANSI, CSA, and DOE, this pad mounted transformer ensures stable voltage output, low losses, and long-term reliability, making it ideal for underground distribution networks, housing developments, and commercial facilities.
Built with a compact, tamper-proof enclosure, the GE Transformer unit enhances safety in public and outdoor environments while optimizing space usage. Its sealed tank design, combined with premium insulation options like mineral oil or eco-friendly FR3 fluid, provides excellent thermal performance, fire resistance, and environmental protection.
This 100kVA single phase pad mounted transformer features a primary voltage of up to 34.5kV and a standard secondary voltage of 120/240V, operating at 50/60Hz. It supports both radial and loop feed configurations and includes essential components such as a load break switch, tap changer, bayonet fuse protection, and pressure relief device for enhanced operational flexibility and safety. Advanced ONAN or KNAN cooling ensures efficient heat dissipation without additional maintenance.
Every GE Transformer product undergoes rigorous factory testing, including load loss, no-load loss, dielectric, and temperature rise tests, ensuring consistent quality and performance. With up to 99% efficiency, reduced operating costs, and easy installation, the GE Transformer 100kVA Single Phase Pad Mounted Transformer is the ideal choice for reliable, safe, and cost-effective power distribution.
25KVA Single-Phase Pad Mounted Transformer Technical Specifications
| Item | Specification |
| Transformer Type | 25KVA pad mounted transformer, loop feed & radial feed can choose |
| Phase | Single phase |
| Primary Voltage | 34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2, 27.6/16, 14.4/7.2, or others |
| Secondary Voltage | 120-240/240-480/347/600 or others |
| Winding Material | Copper/Aluminum |
| Vector Group | Dyn11/YNyn0 or others |
| Insulating Fluid | Mineral Oil/ FR3 |
| Cooling Type | ONAN/KNAN |
| Rated Frequency | 50/60Hz |
| Tap Changer | ±2 x 2.5% Off-Circuit Tap Changer (OCTC) |
| Impedance | 2-4%, Or customized according to customer needs |
| Temperature Rise | 55°C / 65°C |
| Sound Level | ≤ 55 dB (measured at 1 meter) |
| Enclosure | Enclosure: Tamper-resistant, pad-mounted steel tank (corrosion-resistant coating) |
| Accessories | Bayonet fuse, current limiting fuse, load break switch, pressure relief valve, etc. |
| Standards Compliance | ANSI C57.12.25, IEEE C57.12.25, IEC 60076 |
| Altitude | ≤1,000m or Customized |
| Ambient Temperature Range | -40°C to +50°C |
| Warranty | Typically one year, depending on the client’s specific needs |
| Delivery Time | Generally, it is 20-30 days. It is according to the quantity. |
| Min. order quantity | ≧ 1 set |
25KVA Single-Phase Pad Mounted Transformer Accessories
The GE Transformer 25kVA Single-Phase Pad Mounted Transformer is equipped with a comprehensive range of high-quality accessories to ensure safe operation, reliable protection, and easy maintenance in underground distribution systems.
Standard & Optional Accessories Include:
- Lifting Bolts
- Pressure Relief Valve
- Hinged Door with Secure Locking System
- ELSP (Externally Limiting Surge Protective) Fuse
- Bayonet Fuse Assembly
- Two-Position Load Break (LB) Switch
- Tap Changer (Off-Circuit)
- High Voltage (HV) Bushing Well
- Low Voltage (LV) Bushings
- Insert with Dust Cap
- Parking Stand Bracket
- Grounding Bracket & Grounding Spade Terminal
- Copper Ground Strap
- Equipotential Bonding Device
- Oil Level Gauge
- Fill Plug
- Drain Valve & Drip Tray
- Flip-Top Cover
- Pentahead Bolt Arrangement (Tamper-Resistant)
- Nameplate (Stainless Steel)
- Operating Handle
- Clamps and Internal Fixing Components
These accessories are designed to enhance the durability, safety, and functionality of the GE Transformer 100kVA pad mounted transformer, ensuring compliance with industry standards while supporting long-term, maintenance-friendly operation.
FAQ
1. What is a 25kVA single-phase pad mounted transformer used for?
A 25kVA single-phase pad mounted transformer is widely used in residential communities, commercial buildings, and light industrial facilities. It is designed for underground power distribution systems, providing safe, reliable, and efficient voltage conversion.
2. What are the standard voltage ratings for a 25kVA pad mounted transformer?
ypical primary voltages range from 7.2kV to 34.5kV, while the secondary voltage is commonly 120/240V. Custom voltage configurations are available based on project requirements.
3. What is the difference between dead front and live front transformers?
Dead front transformers use fully insulated connectors, offering higher safety and are commonly used in public areas. Live front transformers have exposed bushings and are typically used in controlled industrial environments.
4. What cooling method is used in a 25kVA pad mounted transformer?
Most 25kVA single-phase pad mounted transformers use ONAN (Oil Natural Air Natural) cooling. Eco-friendly KNAN cooling with natural ester fluid is also available.
5. What protection devices are included?
Standard protection includes bayonet fuses, ELSP current-limiting fuses, load break switches, and pressure relief valves, ensuring safe and reliable operation.
6. Can the transformer be customized?
Yes, GE Transformer offers customization options including voltage ratings, insulation fluid (mineral oil or FR3), impedance, accessories, and enclosure materials to meet different international standards and project needs.
7. What standards does the transformer comply with?
The transformer is designed and tested according to IEEE, ANSI, CSA, and DOE standards, ensuring high performance and global compatibility.
8. Why choose GE Transformer for pad mounted transformers?
GE Transformer provides high-efficiency designs, strict quality control, flexible customization, and reliable after-sales support, making it a trusted partner for global power distribution projects.