Lighting Transformers
Designed for industrial illumination distribution, step-down voltage isolation, and safe low-voltage circuits, ensuring steady phase-to-neutral potential with built-in thermal resilience.
Industrial Distribution
Engineered Product Range
Specialized Electrical Equipment & Magnetics
In addition to our standard control and distribution units, Prima Transformers provides specialized electromagnetic assemblies designed for harsh operational environments, precision machinery, and specialized industrial sectors.
Auto Transformer Starter (ATS) Coils
Engineered to handle repetitive high-torque starting inrush currents on squirrel cage induction motors, mitigating line voltage dip while optimizing acceleration curves.
Motor Starting SystemsPrecision-Tapped Stepping Transformers
Manufactured with ultra-tight turns-ratio tolerances for exact multi-voltage outputs, ideal for laboratory instrumentation, testing equipment, and process control systems.
Precision RegulationSpecial Purpose Coils & Solenoid Windings
Custom-wound electromagnetic coils configured with premium Class F/H insulation schemes, precision bobbin geometries, and vacuum-pressure impregnation (VPI) for long duty cycles.
Custom MagneticsImpedance Matching Transformers
Tailored to match source and load impedances with optimal power transfer, signal integrity, and minimal harmonic distortion across audio, communications, and power electronics.
Power ElectronicsServo Controlled Voltage Stabilizers
High-precision automatic voltage regulators equipped with motorized variable auto-transformers, micro-controller boards, and buck-boost transformers for industrial machinery protection.
Voltage RegulationVariac (Variable Auto Transformers)
Continuously variable voltage transformers featuring smooth silver-plated commutators and high-grade toroidal cores for distortion-free AC output from 0% to rated line voltage.
Variable AC ControlConstant Voltage Transformers (CVT)
Ferroresonant technology delivering instantaneous voltage regulation and transient noise rejection without moving mechanical components, safeguarding critical telemetry and electronics.
Ferroresonant TechAutomatic Winding Equipment Magnetics
Heavy-duty magnetic coils and control drive inductors built specifically for automated winding machine integration, high continuous cycles, and harsh industrial environments.
OEM Machinery IntegrationDownhole & Well Logging Transformers (200°C)
Extreme-environment magnetics using specialized high-temperature polyimide/ceramic materials engineered to endure up to 200°C continuous downhole oilfield exploration logging tools.
Extreme High Temp (200°C)Box-Shielded Instrument Transformers
Faraday-shielded enclosure designs providing high common-mode rejection ratios (CMRR) and protection from high electromagnetic interference (EMI) in high-voltage substations.
EMI / RFI ShieldedHT Current & Potential Transformers (CT / PT)
High tension instrument transformers for metering and relay protection compliant with IEC 61869-2 / IEC 61869-3 standards, engineered with low dielectric losses and high thermal ratings.
Medium & High Tension Manufacturing Expertise
Custom Engineering & Global Standards Compliance
Every custom magnetic project undergoes thorough electromagnetic modeling, thermal calculations, and routine electrical tests in our modern manufacturing facility.
Vacuum Pressure Impregnation (VPI)
Windings receive deep-penetration solventless resin treatment under vacuum pressure, eliminating micro-voids, increasing dielectric strength, and ensuring superior moisture and chemical resistance.
Thermal Class up to 200°C (Class N/R)
We source top-tier insulation papers, Nomex barriers, high-temp enamels, and silicone compounds to guarantee performance under deep downhole exploration and heavy furnace conditions.
Comprehensive Factory Acceptance Tests
Testing includes computerized open-circuit and short-circuit loss evaluation, double voltage double frequency (DVDF), ratio and vector group checks, and partial discharge inspection.
Technical Reference
Custom Magnetics Specification Matrix
Standard design parameters for custom orders. Custom OEM adaptations are available upon engineering consultation.
| Product Category | Standard / Rating Range | Insulation Class | Key Applications |
|---|---|---|---|
| Auto Transformer Starters | Up to 1250 kW (Medium / Low Voltage) | Class F / H | Heavy pumps, industrial blowers, compressors & crushers |
| High-Temp Well Logging Magnetics | Custom VA Ratings, Up to 200°C ambient | Class H / N / Specialized | Oilfield downhole logging, deep sub-surface geothermal drilling |
| HT Current & Potential Transformers | 3.3 kV up to 33 kV Systems (IEC/IS standard) | Resin Cast / Oil Immersed | Substation metering, busbar protection, switchgear panels |
| Constant Voltage Transformers (CVT) | 150 VA to 10 kVA (Single Phase) | Class B / F | Analytical equipment, PLCs, telecommunication relays |
| Servo Voltage Stabilizers | 1 kVA to 2000 kVA (1-Phase / 3-Phase) | Class B / F / H | CNC machines, automated packaging, complete plant stabilization |
Direct OEM Support
Need a Custom Engineered Magnetic Solution?
Connect with our technical design team to review specifications, obtain dimensional CAD drawings, and receive a competitive commercial proposal.