Engineering Compliance Guarantee
Every Scott Connected Transformer manufactured by Sahara Transformers undergoes 100% factory acceptance testing (FAT) per IEC 60076 and IS 2026 international standards prior to dispatch.
Precision 3-Phase to 2-Phase Power Balance Solutions
Sahara Transformers designs and manufactures custom **Scott Connected Transformers** (also known as Scott-T connection transformers) specialized for converting three-phase alternating power into balanced two-phase power, or vice versa. Operating with high magnetic symmetry and optimized vector coupling, our Scott transformers prevent phase voltage unbalance on upstream 3-phase utility grids while powering heavy single-phase or two-phase industrial equipment.
Key Engineering Advantages
- Perfect Phase Balance: Draws symmetrical active power from all three supply phases when equal 2-phase loads are connected, protecting main grid switchgear.
- High Dynamic Short-Circuit Strength: Robust mechanical clamping and low-loss CRGO silicon steel core construction to endure severe industrial duty cycles.
- Custom Tap Changer Configurations: Equipped with Off-Load Tap Changers (OCTC) or On-Load Tap Changers (OLTC) for fine voltage adjustment under load variations.
- Thermally Enhanced Insulation: High dielectric strength Class A, F, or H insulation systems designed to withstand elevated temperatures and severe electrical stresses.
How Scott-T Transformers Achieve Phase Balance
The Scott Connection utilizes two single-phase transformers—the **Main Transformer** and the **Teaser Transformer**—interconnected magnetically and electrically to transform 3-phase voltages into two 90° phase-displaced 2-phase outputs.
Main Transformer Coil
Connected directly across two phases of the 3-phase supply (e.g., lines B and C) with a center-tapped primary winding at 50% ratio.
Teaser Transformer Coil
Connected between the third phase line (line A) and the 50% center tap of the Main transformer, operating at 86.6% (√3/2) of the primary turns ratio.
Balanced 2-Phase Output
Produces two equal output voltages with a precise 90-degree phase difference, distributing heavy load current evenly across all 3 input phases.
Scott Connected Transformer Specifications
Our Scott Connected Transformers are custom engineered to meet precise buyer requirements, voltage classes, and operational ambient conditions.
Applications of Scott Connected Transformers
Trusted by electrical engineers, EPC contractors, and system integrators worldwide for demanding phase conversion setups.
Railway Traction Substations
Converts 3-phase grid power to 2 single-phase catenary systems for electric train traction while preventing grid phase imbalance.
Metallurgical & Heating Furnaces
Provides robust 2-phase high-current power for induction melting furnaces, glass manufacturing, and heavy heating elements.
Testing Laboratories
Supplies clean, balanced 2-phase test voltages in electrical equipment research centers, university labs, and quality certification facilities.
Specialized Industrial Plants
Powers legacy 2-phase machinery and specialized motor-generator sets in manufacturing plants without replacing existing infrastructure.
Rigorous Testing & Global Standards Compliance
At Sahara Transformers, operational safety and electrical integrity are non-negotiable. Our manufacturing facility in Pune, India is equipped with state-of-the-art diagnostic instruments to execute thorough routine, type, and special tests per international specifications.
Standard quality inspection tests include:
- Winding Resistance and Voltage Ratio Measurements
- Vector Group Check & Phase Displacement Verification
- Measurement of No-Load Losses and Load Losses
- Separate Source AC Withstand Voltage & Induced Overvoltage Test
- Insulation Resistance (IR) & Oil Breakdown Voltage (BDV) Testing
Why Partner with Sahara Transformers?
Established in 2007, serving over 1,000+ satisfied clients across utilities, heavy manufacturing, and renewable projects.
Tailor-made electrical designs accommodating unique voltage ratios, site space constraints, and extreme environmental ratings.
Export-compliant seaworthy packaging, documentation, and technical support for international B2B buyers and EPC contracts.
Ready to Source High-Reliability Scott Connected Transformers?
Contact our technical engineering sales team today for customized pricing quotes, technical datasheet requests, or engineering consultations.