Explore our high-reliability power semiconductors, thyristor rectifiers, and programmable AC/DC modules certified for demanding European industrial environments.
Slovakia has cemented its role as Europe’s premier industrial power house, boasting the highest per-capita car production globally alongside a rapidly expanding industrial automation and clean energy ecosystem. From the automotive corridors of Bratislava, Trnava, Nitra, and Žilina to the heavy engineering hubs of Košice and Prešov, maintaining rigorous electrical testing standards is critical for operational success. High-precision Programmable AC Power Supplies serve as the backbone of modern testing facilities, enabling engineers to simulate variable grid conditions, execute precise compliance testing, and power complex industrial processes.
As a seasoned power conversion manufacturer, Powerstax brings over three decades of engineering expertise to the Slovakian market. Our programmable AC power supplies and frequency converters deliver ultra-low Total Harmonic Distortion (THD < 0.5%), rapid transient recovery times (< 50 µs), and pure sine wave output across variable frequencies ranging from 0 Hz to 2000 Hz. Whether you are conducting End-of-Line (EOL) testing on EV on-board chargers (OBC), evaluating solar inverter resilience against grid dips, or running high-capacity industrial automation lines, our power systems provide the control, precision, and efficiency required by European standards (EN 61000-3-2, EN 61000-3-12, and STN IEC/EN 61010-1).
Seamlessly adjust voltage from 0 to 600 VAC (phase-to-neutral) and frequencies from 10 Hz up to 2 kHz, supporting multi-region product validation inside Slovak labs.
Simulate grid anomalies including voltage sags, spikes, phase angle jumps, and harmonic injections in compliance with EN 61000-4-11 and automotive ISO standards.
Active Front End (AFE) technology feeds reverse energy back to the grid during motor braking or inverter testing, achieving up to 93% energy recycling efficiency.
Selecting the optimal power conversion topology depends heavily on your application's dynamic response demands, total power footprint, and efficiency targets. The matrix below outlines how Powerstax’s programmable AC platforms compare against standard legacy technologies utilized across Central Europe.
| Performance Parameter | Powerstax Switching PWM AC Source | Linear AC Power Supply | Thyristor Transformer Rectifier (TR) |
|---|---|---|---|
| Power Range | 1 kVA – 120 kVA (Parallelable to 500 kVA) | 500 VA – 12 kVA | 10 kW – 3 MW+ (Electrolysis scale) |
| Total Harmonic Distortion (THD) | < 0.5% at rated power | < 0.2% ultra-clean | Phase controlled ripple (< 3% filtered) |
| Output Frequency Range | 10 Hz – 2000 Hz (Programmable) | 45 Hz – 5000 Hz | Fixed Grid 50/60 Hz |
| Energy Efficiency | 88% – 94% (AFE Regenerative) | 45% – 60% (High thermal dissipation) | 85% – 92% (High power density) |
| Response / Slew Rate | Fast (< 100 µs response) | Ultra-Fast (< 10 µs response) | Slow (Line frequency dependent) |
| Typical Industrial Scenario | Automotive EOL, Avionics, Grid Simulation | Precision Audio, Ultra-sensitive Sensors | Green Hydrogen Electrolysis, Galvanic Plating |
With major automotive manufacturers operating advanced production plants in Slovakia, the demand for high-capacity EV powertrain testing has escalated. Powerstax programmable AC sources allow automotive tier-1 and tier-2 suppliers to simulate global AC grid standards (110V/60Hz North American grids, 230V/50Hz European grids, and 100V/50Hz Japanese grids) inside a single Slovak facility. Engineers can inject harmonic distortion up to the 50th order to evaluate On-Board Charger (OBC) thermal margins, power factor correction (PFC) performance, and immunity to grid fluctuation.
Slovakia's national hydrogen strategy emphasizes the development of green hydrogen facilities to decarbonize steelmaking in Košice and chemical synthesis in Šaľa. Powerstax specializes in high-power thyristor-controlled transformer rectifiers (TR) and programmable AC-DC bulk power units tailored for PEM and alkaline electrolyser stacks. Featuring precise constant current (CC) and constant voltage (CV) regulation with fast ripple mitigation, our systems safeguard membrane longevity while maintaining high power efficiency under continuous multi-megawatt operation.
Automated manufacturing lines require uninterruptible, clean power. Voltage sags on the 400V 50Hz nominal grid can cause industrial PLCs, robotics controllers, and servo drives to trip, leading to expensive downtime. By deploying Powerstax programmable AC power supplies in hardware-in-the-loop (HIL) testbeds, control engineers can benchmark equipment against real-world power quality dropouts before deploying machinery onto production floors across Central and Eastern Europe.
Below are technical answers to common questions asked by Slovak procurement teams, plant engineering managers, and R&D lab directors when sourcing programmable AC sources and industrial rectifiers.
Yes. All Powerstax systems fully comply with European Union directives including the Low Voltage Directive (LVD 2014/35/EU), EMC Directive (2014/30/EU), RoHS 3, and WEEE. They adhere strictly to STN EN 61010-1 safety requirements and STN EN 61000-6-2/6-4 industrial electromagnetic compatibility standards.
Standard rack-mount programmable AC units (1 kVA to 12 kVA) are typically shipped within 2 to 4 weeks across Slovakia (including customs handling and direct site delivery). Custom configured high-power cabinets or megawatt-scale transformer rectifiers follow a 10 to 14 week lead time including factory acceptance testing (FAT).
Absolute precision control is standard. Our programmable AC power supplies feature digital communication interfaces including RS-232, RS-485, USB, Ethernet/LAN (LXI compliant), and optional GPIB or CANopen. Fully documented IVI and LabVIEW drivers are provided for rapid automated test system integration.
Yes. Through our European service network, Powerstax provides comprehensive lifecycle support including ISO/IEC 17025 traceable calibration certificates, annual preventative maintenance contracts, spare parts dispatch, and on-site commissioning by field service engineers.
Our bi-directional programmable AC power sources incorporate Active Front End (AFE) IGBT technology. When an AC motor or inverter returns energy to the power supply, the unit synchronizes with the facility’s 400V 3-phase grid and cleanly feeds the energy back with low harmonic distortion, drastically cutting energy costs during extended testing cycles.
As an experienced power conversion OEM, we modify standard platforms or engineer ground-up clean-sheet designs. Capabilities include custom output voltage ranges up to 200 kV, tailored mechanical chassis enclosures (IP54/IP65 for harsh environments), specialized liquid cooling plates, and custom MIL-STD compliance filtering.
When selecting a power conversion partner, off-the-shelf catalogue components often fail to address complex duty cycles, extreme environmental conditions, or non-standard load behavior. Powerstax stands apart by offering deep application-led engineering capability backed by ISO 9001 quality assurance.
Every power supply undergoes stringent extended burn-in testing, full functional verification, and continuous quality audits to guarantee maximum field uptime.
We design and wind custom transformer rectifiers, choke coils, and high-frequency ferrite magnetics in-house to maximize space efficiency and thermal cooling performance.
We commit to long-term component availability, legacy asset refurbishment programs, and drop-in replacement units to safeguard your capital investments over 15+ years.
Whether you require a single benchtop programmable AC source, a custom rack-mount frequency converter, or a multi-megawatt industrial rectifier system, our senior power engineers are ready to assist.
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