High-Efficiency K-Factor Rated Transformer
—Mitigate Harmonics. Prevent Overheating. Ensure Power Quality.
Standard transformers fail under the stress of modern non-linear loads. At GE Transformer, our K-Factor Rated Transformers (K-4, K-13, K-20) are specifically engineered to handle severe harmonic distortion safely and efficiently. With capacities up to 3000kVA and an ultra-high efficiency of ≥98%, we provide robust, cool-running power solutions for data centers, VFDs, and industrial automation.
Explore Our K-Factor Transformer Series Browse our standard and highly customizable harmonic mitigating transformers. Select the K-rating that matches your system’s Total Harmonic Distortion (THD) profile.
K-Factor Rated Transformers
Technical Advantages
Expert Engineering: Why GE Transformer Stands Out
Expert Engineering: Why GE Transformer Stands Out
Expert Engineering: Designed for Severe Harmonics. Standard transformers overheat when exposed to high-frequency currents. GE Transformer integrates advanced electrical engineering to solve this:
Superior Thermal Management: Built with premium Class F or Class H insulation. Our optimized core and winding designs keep temperature rise strictly ≤115°C, preventing insulation failure.
200% Rated Neutral Bus: Non-linear single-phase loads create massive triplen harmonics. We equip our K-Factor units with an oversized neutral to safely carry these excessive currents.
Electrostatic Shielding: Standard Faraday shields drastically reduce common-mode noise and voltage transients, protecting your sensitive IT and CNC equipment.
Ultra-Quiet & Efficient: Precision-cut silicon steel cores ensure a voltage drop of <3%, efficiency of ≥98%, and ultra-quiet operation at ≤45dB.
Tailored to Your Exact Specifications
Customization Options:
Capacity: Single Phase: 3kVA to 500kVA | Three Phase: 5kVA to 3000kVA.
Voltages: Primary and secondary voltages are fully customized to your local grid and equipment requirements.
Winding Materials: Choose between premium Copper or high-grade Aluminum.
Enclosure Design: Customizable RAL colors and materials, including heavy-duty cold-rolled steel or premium 304 / 316L stainless steel.
Protection Rating: Up to IP65, ensuring complete safety in harsh indoor or outdoor environments.
Frequency & Insulation: 50/60Hz options available, with your choice of Class B, Class F, or Class H insulation to match your thermal requirements.
Optional Features & Integrated Accessories:
Mobility: Heavy-duty caster wheels can be added to the base for easy relocation.
Power Control & Safety: Pre-installed Circuit Breakers, AC Contactors, Fuses, and Output Leakage Protection devices.
Thermal Management: Integrated Temperature Controllers (Thermostats) for automated cooling control.
Surge & Noise Protection: Surge Protection Devices (SPD) and Electrostatic Shielding to eliminate voltage transients and common-mode noise.
Harmonic Handling: Precise K-Factor designs (e.g., K-4, K-13, K-20) tailored to your specific non-linear load profile.
K-Factor Rated Transformers Specifications
| K-Factor Rating | K-4,K-9,K-13, K-20 (Customizable based on harmonic load) |
| Capacity | Single Phase: 3 to 500kVA Three Phase: 5 to 3000kVA |
| Primary Voltage | 800V, 690V, 660V, 600V, 480V, 440V, 415V, 380V, 240V (Customizable) |
| Secondary Voltage | 800V, 660V, 600V, 480V, 440V, 415V, 380V, 240V, 120V, 110V (Customizable) |
| Winding Material | Copper or aluminum |
| Frequency | 60Hz (50/60Hz Optional) |
| Connection Type | Dyn11 / Yyn0 (Delta-Wye preferred for harmonic mitigation) |
| Neutral Capacity | 200% Rated Neutral (Designed to handle excessive triplen harmonics) |
| Electrostatic Shielding | Standard Copper Faraday Shield (For high common-mode noise attenuation) |
| Temperature Rise | ≤115° Other temperature rise options are customizable |
| Insulation | Class F or Class H |
| Cooling Method | ANAN (Natural Air) / ANAF (Forced Air with customizable fans) |
| Efficiency (%) | ≥98% |
| Noise level (dB) | ≤45db |
| Voltage drop | <3% |
| Harmonic Handling | Suitable for non-linear loads (K-factor design available, e.g., K4, K13, K20) |
| Shielding | Electrostatic Shield (optional) |
| Enclosure Material | cold-rolled steel or stainless steel options |
| Enclosure Protection Rating | Protection rating up to IP65; colors and materials are customizable |
| Optional Accessories | Circuit breaker, AC contactor, Thermostat, Output leakage protection, Fuse, Inverter or others |
| Warranty | Typically one year, depending on the client’s specific needs |
| Standards | IEC, CE, UL, CSA, IEEE C57.110 |
| Minimum Order Quantity | ≥1 set |
| Packaging Details | International standard wooden crate or as per actual shipping requirements |
| Delivery Time | Generally 5-10 days, depending on order quantity |
K-Factor Rated Transformers application
Data Centers & IT Infrastructure
Industrial Automation & CNC
Medical & Healthcare Facilities
EV Charging Infrastructure
Commercial & Smart Buildings
Renewable Energy Systems
Why Choose GE Transformer
Quality Control: Quality is a core value of GE Transformer. We conduct Factory Acceptance Testing (FAT), type testing, and third-party inspections to ensure superior quality. We strictly adhere to the ISO 9001 quality management system, committed to providing our customers with the highest quality products.
Professional Team: Our team comprises highly skilled professionals dedicated to responding quickly to customer needs. All GE Transformer team members receive systematic training and continuously improve their capabilities through rigorous quality standards and practices. Our commitment to customer service, product innovation, engineering excellence, and social and environmental responsibility makes us a trusted partner in the global power industry.
Certifications
- ISO9001：2015
- CE Certifications:
- UL Certifications:
- CSA Certification:
- CNAS Certification:
Competitive Market Pricing:Leveraging years of industry experience, GE Transformer integrates high-quality resources across R&D, production, procurement, transportation, and service, achieving effective cost control.
Fast Delivery: Strong production capacity, multiple freight partners, and a professional pre-sales and after-sales team, adhering to the “customer first” philosophy, provide customers with fast delivery and usage services.
FAQ
Q1: How do I choose between K-4, K-13, and K-20 ratings?
It depends on your non-linear load percentage. K-4 is ideal for systems with up to 50% non-linear loads. K-13 is the industry standard for 100% non-linear loads (such as data center IT racks and commercial buildings). K-20 is engineered for severe harmonic environments like heavy VFDs and EV chargers. Contact the GE Transformer engineering team for a free technical assessment.
Q2: Do you offer both copper and aluminum windings?
Yes. We manufacture our K-Factor transformers using either premium copper or high-grade aluminum, depending on your project budget and weight requirements. Regardless of the material chosen, our advanced winding techniques guarantee an ultra-high efficiency of ≥98% and a low voltage drop of <3%.
Q3: Can you manufacture transformers for outdoor use?
Yes! GE Transformer can build custom cold-rolled steel or stainless steel enclosures with protection ratings up to IP65. This makes them perfectly safe against dust and water in harsh industrial sites or outdoor EV charging stations. We also offer customizable RAL colors to match your facility.
Q4: Can you integrate circuit breakers or other accessories into the enclosure?
Absolutely. We provide true plug-and-play power solutions. To save you installation time and space, we can pre-install optional accessories such as circuit breakers, AC contactors, thermostats, cooling fans (ANAF), fuses, and output leakage protection directly into the transformer enclosure.
Q5: What is your Minimum Order Quantity (MOQ) and typical lead time?
Our MOQ is just 1 set, making us highly flexible for both single-unit prototypes and large-scale facility upgrades. Thanks to our streamlined manufacturing process, our standard delivery time is exceptionally fast—generally 5 to 10 days, depending on the order quantity and specific customization requirements.
Q6: What information do I need to provide to get a custom quote?
To provide an accurate quote quickly, please share the Capacity (e.g., 500kVA), Primary and Secondary Voltages, required K-Factor (or a description of your load types), and any specific enclosure requirements (such as IP rating or indoor/outdoor use).