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Energy Solutions can help you reduce your electricity bills
Commercial Enquiry :
+919373336340 | +919822407189
sales@enertechups.com
Customer Care & Support: +919373679255 support@enertechups.com
Careers: +919075088292 recruitment@enertechups.com
Industrial machinery, automated production lines, and high-precision commercial facilities demand uninterrupted, balanced voltage to perform at their peak. Chronic grid instability—such as phase-to-phase imbalances, frequent sags, and high-voltage surges—leads to motor overheating, sensor failure, and costly operational downtime. EnerTech Three-Phase (3P) Servo Voltage Stabilizers are engineered to deliver balanced, tightly regulated 415V three-phase power, available in both compact Air-Cooled and heavy-duty Oil-Cooled configurations to match any operating environment.
| Parameter | Air-Cooled (3–250 KVA) | Oil-Cooled (25–1000 KVA) |
|---|---|---|
| Capacity Range | 3 KVA to 250 KVA | 25 KVA to 1000 KVA |
| Phase | Three Phase | Three Phase |
| Construction Type | Balanced / Unbalanced | Balanced / Unbalanced |
| Input Voltage Range |
360V–460V (Standard) 340V–480V (Wide) 300V–500V (Custom) |
360V–460V (Standard) 340V–480V (Wide) 250V–500V (Custom) |
| Output Voltage | 415V AC ±1% (Adjustable ±6%) | 415V AC ±1% (Adjustable ±6%) |
| Output Voltage Accuracy | ±0.5% (Ultra-precision) | ±0.5% (Ultra-precision) |
| Frequency | 50 Hz ±5% | 50 Hz ±5% |
| Voltage Correction Rate | 40–60V per second | 50–70V per second |
| Response Time | < 20 milliseconds | < 15 milliseconds |
| Cooling Type | Natural / Forced Air Cooling | Oil Cooled (BS:335 Standard Oil) |
| Efficiency | ≥97% at rated load | ≥98% at rated load |
| Waveform | Pure Sinusoidal (THD <3%) | Pure Sinusoidal (THD <2%) |
EnerTech has established itself as a premier brand in power electronics with over 35 years of engineering experience and a base of 35,000+ satisfied customers. When mission-critical industrial machinery, medical diagnostics, and commercial operations require steady power, facility managers and engineers choose EnerTech servo stabilizers for several key reasons:
Industry-First Smart IoT Integration: EnerTech pioneered IoT-enabled servo voltage stabilizers, providing real-time remote monitoring, automatic health alerts, and power quality analytics directly through web dashboards and mobile apps.
High-Precision DSP/MCU Control: Digital signal processor (DSP) microcontroller architecture ensures instant response (< 1 second) and stepless, true $\pm 1\%$ voltage accuracy without mechanical overshooting.
Independent Phase Balancing: In three-phase installations, EnerTech units offer individual phase regulation using dedicated sensing circuits and servo motors, balancing heavily unbalanced input voltages and uneven phase loads.
Heavy-Duty Build & Overload Capacity: Engineered with high-grade electrolytic copper windings and low-loss CRGO laminated magnetic cores, built to withstand starting inrush currents of 200% to 300% from inductive motor loads.
Dual Cooling Versatility (Air-Cooled & Oil-Cooled): Tailored product lines for every site condition—from clean, compact air-cooled indoor setups to rugged, heavy-duty oil-cooled tanks designed for dusty, high-heat factory floors.
Zero Waveform Distortion: Clean electromagnetic regulation introduces virtually zero total harmonic distortion (THD < 1%), protecting sensitive CNC controllers, VFDs, and imaging equipment from electrical noise.
Multi-Tier Safety Protection: Built-in safeguards automatically protect equipment against over/under voltage, phase reversal, single phasing, short circuits, and thermal overload.
Proven In-House R&D and Pune Manufacturing: Designed and built in state-of-the-art facilities with strict adherence to BIS/IS 9815 and IEC standards, ensuring local availability of spares and rapid turnaround.
Extensive Pan-India & Global Service Network: Backed by 200+ service points and trained field engineers offering comprehensive site surveys, earthing checks, and prompt preventative maintenance support.
Trusted by leading industries across manufacturing, pharmaceuticals, textiles, petrochemicals, cold storage, and more—EnerTech powers India’s industrial growth.
Speed of Operation: The entire correction cycle happens in less than 20 milliseconds, ensuring your three-phase equipment receives consistently stable power without any perceptible lag or interruption.
Utilizes separate servo-drive mechanisms and sensing circuits for each phase (R, Y, B), ensuring individual correction even when input phase voltages and load distributions are heavily skewed.
Delivers continuous, stepless voltage correction to protect sensitive computerized controllers and heavy induction motors alike.
Pure electromagnetic regulation adds zero harmonics, ensuring total compatibility with high-precision CNC drives, PLCs, and testing equipment.
Variable-speed high-torque AC servo motor receives control signals Motor rotates at speed proportional to voltage deviation (faster for larger deviations) Direction of rotation determined by whether voltage needs increase or decrease
Built with electrolytic-grade copper windings and low-loss CRGO silicon steel laminations to comfortably handle 200% to 300% motor starting inrush currents.
Rapid correction speeds (up to 70V/second) neutralize sudden grid drops caused by neighboring heavy industrial loads.
Automated cut-off safeguards against over-voltage, under-voltage, overload, short circuits, phase reversal, and single phasing.
Microcontroller-driven digital front panel displays real-time line-to-line/line-to-neutral voltages, currents, and frequency, with optional RS485/Modbus connectivity for central SCADA/BMS integration
We manufacture both air-cooled and oil-cooled variants in-house with the same quality standards. Our engineers conduct free site assessments to recommend the optimal cooling technology based on your capacity, environment, and application needs.
Delivering success through 35,000+ satisfied customers over the past 35+ years with our impeccable Battery Energy Storage System Installation.
Trusted by industries, businesses, and institutions for reliable solar and energy storage solutions. Proven performance backed by decades of engineering excellence and customer confidence.
A: Balanced type uses a single servo motor to control all three phases together—suitable for applications where input supply and load are balanced across all three phases. Unbalanced type uses three independent servo motors (one per phase) for independent correction—ideal for unbalanced loads, mixed single-phase and three-phase equipment, or areas with chronically unbalanced input supply. Most modern industrial applications benefit from unbalanced type due to varying load patterns. Our engineers provide free load analysis to recommend the optimal configuration.
A: Air-cooled stabilizers are suitable for capacities up to 100 KVA, indoor installations with good ventilation, and operations under 20-22 hours per day. Oil-cooled stabilizers are recommended for capacities 100 KVA and above, 24/7 continuous operation, high-temperature environments, and when maximum reliability is critical. Oil cooling provides superior heat dissipation, longer component life (15-20 years vs 10-15 years), and better efficiency (98% vs 97%).
A: Absolutely! Our servo stabilizers feature special electronic circuitry specifically designed for generator compatibility. They handle frequency variations (±5%), rapid load changes, voltage transients, and power factor variations typical of DG set operation. This makes them perfect for facilities with backup generator systems. We've successfully installed thousands of units working seamlessly with generators across industries.
A: Our standard range handles 360V-460V input. Wide range models operate from 340V-480V. For extremely poor power areas, we offer custom extra-wide range models (300V-500V or 250V-500V). All models maintain stable 415V ±1% output regardless of input fluctuations. We can customize input/output specifications based on your specific requirements—consult our engineering team for tailored solutions.
A: Calculate total connected load in kW across all three phases, add 20-25% safety margin, and convert to KVA by dividing by power factor (typically 0.8 for industrial loads). Example: 80 kW load ÷ 0.8 PF = 100 kVA, plus 25% safety = 125 KVA recommended capacity. However, we strongly recommend our free load analysis service where our engineers assess your actual requirements, load patterns, future expansion plans, and recommend optimal capacity and configuration.
A: Air-cooled units: 10-15 years with annual maintenance (brush inspection, cleaning, testing). Oil-cooled units: 15-20 years with semi-annual maintenance (oil testing, brush inspection) and annual comprehensive service. Maintenance is minimal—quarterly visual inspections, annual detailed service. We offer AMC contracts for hassle-free maintenance with scheduled preventive service, priority support, and spare parts discounts.
A: Our servo stabilizers respond in less than 20 milliseconds to voltage fluctuations. The correction rate is 40-70V per second depending on capacity. This ultra-fast response ensures your equipment never experiences voltage outside the safe operating range, even during rapid fluctuations. The continuous servo mechanism provides smooth, stepless correction without jerks or delays typical of relay-based systems.
A: Yes! Our IoT-enabled servo stabilizers support remote monitoring through web portal or mobile app. You can monitor voltage, current, frequency, power factor, and system status for multiple stabilizers from a single dashboard. Receive instant alerts via WhatsApp/SMS/Email for any abnormal conditions. Historical data logging enables trend analysis and predictive maintenance. This is particularly valuable for facilities with multiple stabilizers or multi-location operations.
A: Comprehensive multi-layer protection: Phase Reversal Protection, Single Phasing Protection (critical for three-phase motors), Short Circuit Protection (MCCB), Overload Protection (120% for 10 min, then trip), High/Low Voltage Cutoff (user-settable), Surge Control Protection, Neutral Failure Protection, Phase Missing/Reversal Alarms. All protection settings are configurable based on your equipment requirements. This comprehensive protection ecosystem safeguards your expensive industrial equipment investment.
A: Absolutely! Customization is one of our core strengths. We customize: Input voltage ranges (any specification from 250-500V), Output voltages (360V, 380V, 400V, 415V, 440V), Special enclosures (weather-proof IP54/IP65, corrosion-resistant, ATEX-compliant for hazardous areas), Custom control panels with specific instrumentation, Integration with SCADA/automation systems, Multi-stabilizer synchronized systems for large loads, Export voltage/frequency specifications. Our in-house R&D and manufacturing enables us to deliver custom solutions within 3-4 weeks.
A: Our comprehensive 4-phase process: (1) Pre-Installation: Free site survey, load analysis, custom design, detailed proposal. (2) Installation: Site preparation guidance, equipment delivery, professional electrical installation by certified engineers. (3) Testing & Commissioning: Pre-commissioning checks, load testing at various levels, protection testing, IoT configuration, performance documentation. (4) Training & Handover: Operator training, documentation, warranty activation. Entire process typically takes 2-4 weeks depending on capacity and site conditions.
A: Standard warranty: 18 months comprehensive warranty covering manufacturing defects and component failures. Extended warranty options available up to 5 years. Post-warranty: Lifetime support for spare parts and service through 100+ service centers pan-India. 24/7 technical helpline with 24-48 hour on-site response. AMC contracts available for scheduled maintenance, priority support, and spare parts discounts. Remote diagnostics for IoT-enabled units reduces service visits and downtime.
A: Very efficient! Air-cooled units operate at 97% efficiency, oil-cooled at 98% efficiency. This means only 2-3% energy loss during voltage regulation. For a 100 KVA stabilizer operating at 80% load, energy loss is just 1.6-2.4 kW. Compared to the energy waste and equipment damage prevented, servo stabilizers provide significant net energy savings. Many customers report 12-18% reduction in overall facility energy consumption due to improved equipment efficiency and power quality.
A: Air-cooled units are designed for indoor installation in controlled environments with proper ventilation. Oil-cooled units can be installed outdoors with proper weatherproof enclosures (IP54 or IP65 rating). We provide custom outdoor enclosures with rain protection, sun shades, ventilation, and corrosion-resistant coating for coastal or harsh environments. Proper enclosure design is critical for outdoor installations—consult our engineers for site-specific recommendations.
A: We offer the best value proposition in the industry—direct manufacturer pricing without middleman markup, transparent quotations with detailed specs, volume discounts for multiple units, and competitive TCO (Total Cost of Ownership) over 15-20 year lifespan. While initial cost might be comparable or slightly higher than generic brands, superior quality, longer lifespan, minimal maintenance, and comprehensive support make EnerTech stabilizers significantly more cost-effective over the product lifetime. Most customers achieve ROI within 12-24 months through downtime elimination and equipment protection alone.
