315 kVA Distribution Transformer Price Guide: Specifications, Benefits, and Buying Advice
Looking to invest in a 315 kVA distribution transformer? Whether you’re upgrading your existing power distribution network or installing a new industrial system, understanding the pricing and specifications of this critical component is essential.

What is a 315 kVA Distribution Transformer?
A 315 kVA distribution transformer is a mid-sized power transformer typically used in industrial and commercial applications. It steps down high voltage (typically 11kV or 33kV) to a lower, usable voltage level (such as 415V) suitable for factory machines, commercial buildings, or substations.
Quick Overview
Parameter | Specification (Typical) |
---|---|
Rated Capacity | 315 kVA |
Primary Voltage | 11 kV or 33 kV |
Secondary Voltage | 415 V |
Phase | Three Phase |
Frequency | 50/60 Hz |
Cooling Type | ONAN (Oil Natural Air Natural) |
Vector Group | Dyn11 (standard for distribution) |
Insulation Class | A or F |
Mounting | Pole / Pad Mounted |
315 kVA Distribution Transformer Price Range
The price of a 315 kVA transformer can vary based on configuration and origin. Here’s a general breakdown:
- Oil-Immersed Type: $3,000 – $6,000
- Dry Type (Cast Resin): $5,000 – $8,500
- Customization & Accessories: Surge protection, temperature sensors, or tap changers can increase costs by 10–25%
For the most accurate quotation, always request based on:
- Voltage level (primary/secondary)
- Environmental standards
- Cooling system
- Brand/manufacturer origin

Factors Affecting Price
- Material Quality: Copper windings are costlier but more efficient than aluminum.
- Cooling System: Oil-cooled models are cheaper than cast resin dry types.
- Load Type: Distribution load nature (resistive/inductive) may require customization.
- Standards Compliance: IEC, ANSI, or BIS-certified transformers come with a premium.
Use Cases
- Small Industrial Substations
- Commercial Complexes
- Rural Electrification Projects
- Agricultural Irrigation Systems
Global Shipping and Lead Times
We support worldwide delivery. Typical production and delivery time:
- Standard Units: 7–15 working days
- Custom Orders: 20–30 working days
Shipping costs vary based on destination and transformer weight (~1000–1300 kg).
Why Choose Us?
- High-efficiency designs (up to 99.2%)
- Competitive pricing direct from factory
- Customizable voltage combinations
- Compliance with global standards (IEC, ISO, CE)
Need a quote? Reach out to our sales team for a customized offer.
Frequently Asked Questions (FAQ)
Q1: How long does a 315 kVA transformer last?
A: Typically 20–30 years if maintained properly.
Q2: Can I install a 315 kVA transformer outdoors?
A: Yes, with weatherproof housing or pad-mounted design.
Q3: Is dry type better than oil-immersed?
A: Dry type is safer indoors but more expensive; oil-immersed is preferred for outdoor and higher efficiency.