Comprehensive technical data for 167 kVA dry transformers including dimensions, weight, full load amps, installation tips, and sizing guidance
Quick Specifications
| Rated Power: | 167 kVA | Phase: | Single-Phase |
| Primary Voltage: | 480V | Secondary Voltage: | 120/240V |
| Weight: | 860 lbs (390 kg) | Efficiency: | 99.0% |
| Dimensions (H×W×D): | 55″ × 30″ × 24″ (1397 × 762 × 610 mm) | ||
A 167 kVA transformer is commonly used in Large industrial, power distribution. This guide provides complete specifications to help engineers and purchasers select and install 167 kVA transformers correctly.
167 kVA Transformer Dimensions
| Dimension | Metric (mm) | Imperial (inches) |
|---|---|---|
| Height (H) | 1397 mm | 55″ |
| Width (W) | 762 mm | 30″ |
| Depth (D) | 610 mm | 24″ |
167 kVA Transformer Weight
| Weight Type | Pounds (lbs) | Kilograms (kg) |
|---|---|---|
| Dry-Type Transformer | 860 lbs | 390 kg |
| Oil-Filled Equivalent* | ~1290 lbs | ~585 kg |
| Shipping Weight (Approx.) | ~946 lbs | ~429 kg |
*Oil-filled transformer weight is estimated at approximately 1.5× dry-type weight.
Full Load Amps at Various Voltages
The following table shows calculated full load amperage for a 167 kVA single-phase transformer:
| Voltage | Full Load Amps | Suggested Wire Size |
|---|---|---|
| 120V | 1391.7 A | 750 MCM+ |
| 208V | 802.9 A | 750 MCM+ |
| 240V | 695.8 A | 750 MCM+ |
| 277V | 602.9 A | 750 MCM+ |
| 480V | 347.9 A | 500 MCM |
| 600V | 278.3 A | 350 MCM |
Single-Phase:
Amps = (kVA × 1000) ÷ VoltageExample at 480V:
347.9 A = (167 × 1000) ÷ 480Electrical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Rated kVA | 167 kVA | At rated voltage and frequency |
| Frequency | 60 Hz | 50 Hz available on request |
| No-Load Loss | 250 W | Core/iron losses (typical) |
| Load Loss | 1100 W | Copper losses at 100% load |
| Total Losses | 1350 W | At 100% load |
| Impedance | 5.0% | ±7.5% tolerance per IEEE |
| Efficiency | 99.0% | At 100% load |
| Sound Level | ~43 dB | Per NEMA ST-20 (estimated) |
⚠️ Important Considerations for 167 kVA Transformers:
- Large transformers like this 167 kVA unit generate significant heat. Verify room ventilation capacity before installation.
- Floor loading of 860 lbs requires structural verification. Contact a structural engineer for slab-on-grade installations.
- Impedance matching is critical when paralleling transformers. Consult a power systems engineer.
When is a 167 kVA Transformer the Right Choice?
A 167 kVA single-phase transformer is designed for substantial loads:
- Large commercial facilities (10,000+ sq ft)
- Industrial workshops with heavy machinery
- Data center backup power systems
- Large agricultural operations
- Mining and extraction equipment
Engineering Considerations:
- Voltage drop calculations become critical at this size
- Short circuit current analysis required
- Consider redundant transformer configuration for critical loads
- Coordinate overcurrent protection with utility requirements
Typical Load Examples for 167 kVA
Example load distribution for a 167 kVA installation:
| Load Type | Estimated Demand |
|---|---|
| Industrial HVAC | 41 kVA |
| Production equipment | 58 kVA |
| Facility lighting | 25 kVA |
| Compressed air system | 25 kVA |
| Office/admin loads | 16 kVA |
Note: Actual loads vary. Always perform a detailed load calculation for your specific application.
Related Transformer Sizes
Compare with adjacent kVA ratings:
| kVA Rating | Link |
|---|---|
| 100 kVA Single-Phase | 100 kVA Specifications → |
| 167 kVA Single-Phase | Current Page |
| 250 kVA Single-Phase | 250 kVA Specifications → |
Frequently Asked Questions
What are the dimensions of a 167 kVA transformer?
A typical 167 kVA dry single-phase transformer measures approximately 55″ H × 30″ W × 24″ D (1397 × 762 × 610 mm). Dimensions vary by manufacturer.
How much does a 167 kVA transformer weigh?
A 167 kVA dry transformer typically weighs around 860 lbs (390 kg). Oil-filled transformers of the same rating weigh approximately 1290 lbs.
What is the full load amperage of a 167 kVA transformer at 480V?
At 480V, a 167 kVA single-phase transformer has a full load current of 347.9 amps.
What loads can a 167 kVA transformer handle?
A 167 kVA transformer can supply up to 167 kVA of apparent power. For typical loads with 0.85 power factor, this equals approximately 141.9 kW of real power.
Related Resources
📊 Complete Reference Charts:
- Transformer Sizing Chart – Compare all kVA ratings with dimensions & weights
- Transformer Full Load Amps Chart – FLA reference for all voltages
Related Articles
- Three Phase Transformer: Complete Guide
- Transformer Testing: Complete Guide
- Transformer Protection: Complete Guide
Standards & References
- IEEE C57.12.01 – General Requirements for Dry-Type Transformers
- IEEE C57.12.91 – Test Code for Dry-Type Transformers
- NEMA TP-1 – Guide for Determining Energy Efficiency
- DOE 10 CFR 431 – Energy Conservation Standards
Disclaimer: Specifications shown are typical reference values compiled from multiple industry sources. Actual specifications vary significantly by manufacturer, model, enclosure type, and configuration. Always consult manufacturer datasheets for exact specifications before ordering or installation. Data accuracy verified using standard electrical engineering formulas. Last updated: January 2026