250 kVA Distribution Transformer Price and Buying Guide
A 250 kVA distribution transformer is a common and vital component in power distribution systems, especially for medium-scale industrial, commercial, and residential power applications. Choosing the right transformer at the right price requires understanding technical parameters, influencing cost factors, and application needs.
What is a 250 kVA Distribution Transformer?
A distribution transformer is designed to step down voltage from high-voltage transmission lines to a usable level for end users. A 250 kVA unit refers to a transformer capable of handling a power load of 250 kilovolt-amperes, making it suitable for:
- Small industrial plants
- Residential complexes
- Agricultural irrigation systems
- Commercial buildings
- Schools and hospitals
These transformers typically convert medium voltage levels like 11kV or 33kV down to 400V / 415V for general use.
Price Range of 250 kVA Distribution Transformers
| Type | Cooling Method | Voltage Level (Input/Output) | Price Range (USD) |
|---|---|---|---|
| Oil-Immersed, Standard | ONAN | 11kV / 400V | $3,000 – $4,500 |
| Oil-Immersed, BIS/IEC | ONAN | 11kV / 415V | $3,500 – $5,000 |
| Dry-Type Cast Resin | AN / AF | 11kV / 400V | $5,500 – $7,500 |
| Pad-Mounted Transformer | Sealed | 13.2kV / 480V | $7,000 – $9,000 |
💡 Prices may vary depending on copper/aluminum winding, brand reputation, protection accessories, and country of manufacture.
Key Factors Affecting Price
- Winding Material – Copper is more expensive than aluminum
- Cooling Method – Oil-immersed is cheaper than dry-type
- Insulation Class – Class F or H rated insulation adds to cost
- Efficiency – Higher efficiency (Level 1 / DOE) means better long-term ROI
- Protection Devices – Buchholz relay, temperature sensors, pressure relief valves
- Standards – Compliance with BIS, IEC, ANSI, etc., may raise pricing
Common Applications of 250 kVA Transformers
- Warehouses & Logistics Centers
- Manufacturing Workshops
- Hotels and Office Complexes
- Backup Power Systems with Generators
- Solar and Wind Energy Distribution Points
How to Select the Right 250kVA Transformer?
When sourcing or purchasing, consider:
- Voltage Ratio required by your utility grid
- Installation Environment (indoor, outdoor, humid, desert)
- Mounting Type – Pole-mounted, pad-mounted, floor-mounted
- Protection Grade – IP rating for dust and water
- Certifications – CE, ISO, IEC 60076, etc.
- Delivery Timeline & Warranty
FAQs about 250 kVA Transformers
Q1: What’s the weight of a 250 kVA transformer?
A: Typically ranges from 900 kg to 1,500 kg depending on oil content and construction.
Q2: Can I use a 250 kVA transformer for a 3-phase system?
A: Yes. Most 250 kVA distribution transformers are designed for 3-phase applications.
Q3: What’s the difference between dry-type and oil-type transformers?
A: Oil-immersed units offer better overload capacity and are cost-effective. Dry-type are safer for indoor use but more expensive.
