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₦10,810,000.00
"150kVA of Industrial-Grade Voltage Mastery – Vectronic 150kVA 3-Phase Automatic Voltage Regulator."
In high-stakes Nigerian industry, voltage instability isn't an annoyance. It's a profit incinerator.
One deep brownout below 180V can stall your entire production line. One sudden spike above 450V can fry control boards worth millions. Persistent phase imbalance can cut your motor lifespans by 70% or more – silently, invisibly, expensively.
For facilities running on heavy 3-phase power – large manufacturing plants, industrial cold rooms, hospitals with sensitive imaging equipment, data centers, telecom hubs, and commercial complexes – the difference between profit and loss often comes down to one thing: clean, stable, balanced voltage.
Enter the Vectronic 150kVA (3-Phase) AVR – a heavy-industrial-grade automatic voltage regulator engineered specifically for Nigeria's unforgiving power environment. This powerhouse takes unstable 3-phase input from 170V to 480V phase-to-phase and delivers rock-solid 380V/400V/415V ±3% output – with independent closed-loop regulation on each phase.
Whether you're protecting a 150kVA generator, a fleet of large industrial compressors, a hospital's MRI suite, a data center, or an entire manufacturing production line – the Vectronic 150kVA AVR is the armor your equipment deserves.
Stop replacing million-naira motors. Stop losing production hours. Start regulating.
| FeatureBenefit | |
| 150kVA / 120kW true 3-phase rating | Supports massive industrial loads – large cold rooms (40–60hp compressors), entire factory sections, hospital imaging suites, data centers, and large commercial complexes. |
| Wide 3-phase input voltage range: 170V – 480V (phase-to-phase) | Operates during severe brownouts that would shut down lesser AVRs. Keeps your facility running when grid voltage drops dangerously low. |
| Precise output: 380V/400V/415V ±3% (selectable) | Delivers stable, balanced voltage – protects sensitive PLCs, VFDs, medical imaging equipment (MRI/CT), servers, and industrial controllers. |
| Independent 3-phase servo-motor correction with toroidal autotransformer per phase | Each phase regulated individually. Critical when utility supply is unbalanced (e.g., L1=200V, L2=190V, L3=225V) – a common issue in Nigerian industrial zones with overloaded transformers. |
| High-efficiency toroidal transformer (>97%) | Runs cooler, quieter, and more efficiently than traditional EI-core transformers. Saves electricity – lower operating costs. |
| Fast voltage correction response: ≤ 10ms per volt | Instantaneous correction during rapid grid fluctuations or generator load changes – your equipment never experiences dangerous voltage swings. |
| Digital microprocessor control with large LCD touchscreen (7-inch) | Real-time monitoring: Input voltage (L1-L2, L2-L3, L3-L1, plus phase-to-neutral), output voltage, load current per phase, load percentage (kVA), temperature, and fault history with time stamps. Full diagnostics without a technician. |
| LED indicators for each phase and status | Quick visual check from across the room – green for normal, yellow for regulation active, red for fault. At-a-glance peace of mind for industrial floors. |
| Automatic bypass switch with manual override | In case of AVR overload or internal fault, the system automatically switches equipment directly to utility/generator power – zero extended downtime. Manual bypass for maintenance without shutting down production. |
| Adjustable time delay (0–30 seconds) | Prevents servo and relay stress during generator startup or grid flapping. Extends AVR lifespan – critical for generator-fed facilities. |
| Overload capacity: 150% for 45 seconds, 200% for 10 seconds | Handles massive motor startup surges (large compressors, conveyors, pumps, elevators, injection molding machines) without tripping or voltage drop. |
| Full protection suite | Over-voltage, under-voltage, over-current, short circuit, over-temperature, phase loss, phase sequence reversal, surge, and spike protection. Automatic shutdown and audible alarm on critical faults. |
| Phase loss + phase sequence reversal protection | Prevents catastrophic motor damage if one phase disappears or phases are wired incorrectly. Shuts down safely within milliseconds and alerts operator. |
| Heavy-duty industrial-grade steel enclosure (IP20 standard, IP54 optional) | Dust-resistant and impact-resistant – built for Nigerian factory floors, generator rooms, and harsh environments. Floor-standing free-standing cabinet design with lockable tempered-glass door. |
| Intelligent variable-speed cooling fans (redundant pair) | Fans ramp up only when needed – quieter operation, longer fan life, and lower energy consumption. Redundant fans ensure cooling continues if one fails. |
| RS-485 / Modbus / SNMP communication port (standard) | Remote monitoring and integration with building management systems (BMS), SCADA, PLCs, or generator controllers. Real-time voltage alerts sent to your phone, email, or control room. |
| Dry contact relay outputs for external alarms | Connect to external sirens, flashing lights, or building automation systems for immediate fault notification. |
| Anti-condensation heaters with humidistat (optional) | Prevents internal moisture buildup – critical for facilities in coastal cities like Port Harcourt, Calabar, Warri, or Lagos Island. |
| Manual voltage adjustment knobs (per phase) | Allows operator to fine-tune output voltage within the regulation band – useful for equipment with specific voltage requirements or commissioning. |
| Data logging capability (standard – 30 days internal memory, expandable) | Records voltage history (input/output per phase, load, temperature) over days/weeks – invaluable for troubleshooting, warranty claims, or proving grid issues to the electricity distribution company (DisCo). |
| True RMS sensing for accurate measurement even with distorted waveforms | Provides accurate voltage readings even when grid power has harmonic distortion – common with generator and inverter power sources. |
| Industry / FacilityWhy They Need It | |
| Large-scale Manufacturing / Production | CNC machining centers, injection molding machines (150–300 ton), extruders, conveyor systems, industrial ovens, compressors – voltage instability ruins product quality, damages expensive tooling, and scraps raw materials. |
| Industrial Cold Storage / Food Processing | Large compressors (40–60hp) are extremely sensitive to undervoltage and phase imbalance. One sustained brownout can destroy a ₦3–7 million compressor. Spoilage costs multiply. |
| Hospitals / Tertiary Medical Centers | MRI, CT scanners, X-ray machines, linear accelerators (radiotherapy), ventilators, laboratory equipment, surgical suites, ICU – voltage instability causes image artifacts, equipment errors, reboots, and patient safety risks. |
| Data Centers / Colocation Facilities | Hundreds of servers, storage arrays, networking gear – clean, stable voltage prevents data corruption, hardware failure, and costly SLA violations. |
| Telecommunications (Major Switching Centers / Data Hubs) | Central office switches, aggregation routers, transmission equipment – network uptime depends on stable power. |
| Large Shopping Malls / Mixed-Use Complexes | Multiple escalators, elevators (4–8 units), central HVAC (100–200 tons), lighting, POS systems, security systems – voltage dips disrupt customer experience and tenant operations. |
| University Campuses / Teaching Hospitals | Computer labs, research equipment, libraries, administrative servers, medical imaging – thousands of students, staff, and patients depend on stable power. |
| 5-Star Hotels / Large Hospitality Groups | Guest comfort depends on working ACs (hundreds of units), elevators, multiple kitchen equipment, entertainment systems, spa equipment – reputation damage from power issues is costly. |
| Banks / Financial Institutions (Headquarters / Processing Centers) | Mainframes, servers, ATMs, security systems, teller equipment – voltage regulation is non-negotiable for financial transactions and regulatory compliance. |
| Water Treatment / Pumping Stations (Municipal/Industrial) | Large pumps (75–150hp) are vulnerable to undervoltage damage. AVR ensures continuous water supply to communities or industrial processes. |
| Beverage / Bottling Plants | High-speed filling lines, labelers, conveyors, compressors, chillers – continuous production requires uninterrupted, stable power. Downtime costs millions per hour. |
| Printing / Packaging Industry (Large Scale) | High-speed offset printers, laminators, die-cutters, folder-gluers – voltage fluctuations cause misalignments, color errors, material waste, and missed deadlines. |
| Pharmaceutical Manufacturing | Clean rooms, HVAC, compressors, mixers, tablet presses – voltage stability is critical for GMP compliance and product quality. |
| Plastics / Rubber Processing | Extruders, injection molding machines, blow molding – voltage instability causes inconsistent product dimensions and rejects. |
| Steel / Metal Fabrication | Large motors, welding equipment, plasma cutters, CNC routers – voltage sags cause poor weld quality and premature tool wear. |
Trust signals:
Q: What is the difference between 150kVA and 150kW?
For an AVR, kVA (kilovolt-ampere) is the apparent power rating. kW (real power) = kVA × power factor. For industrial loads with a typical power factor of 0.8, 150kVA × 0.8 = 120kW of usable real power. The AVR is rated for 150kVA continuously at its specified output voltage.
Q: How much equipment can a 150kVA 3-phase AVR support?
A 150kVA (120kW) AVR can support approximately:
| Equipment TypeTypical PowerQuantity Supported | ||
| Industrial cold room compressor (40hp) | ~35kVA | 3–4 units |
| Industrial cold room compressor (50hp) | ~45kVA | 3 units |
| Industrial cold room compressor (60hp) | ~55kVA | 2–3 units |
| Large injection molding machine (200-ton) | ~40kVA | 3–4 units |
| CNC machining center (large) | ~25kVA | 5–6 units |
| Industrial AC (15hp) | ~13kVA | 10–12 units |
| Water pump (100hp) | ~90kVA | 1 unit (with spare capacity) |
| Water pump (75hp) | ~68kVA | 2 units |
| Server rack (high-density) | ~15kVA | 8–10 racks |
| MRI machine (1.5T – modern) | ~35kVA | 3–4 units |
| CT scanner (64-slice) | ~40kVA | 3 units |
For accurate sizing, chat with our team with your equipment list – we provide free professional load assessments for serious industrial inquiries.
Q: What is the difference between an AVR and a UPS at 150kVA scale?
| AspectVectronic 150kVA AVR150kVA Online UPS | ||
| Primary function | Voltage regulation only | Voltage regulation + battery backup |
| Battery runtime | Not applicable (no batteries) | 5–15 minutes typical (external battery cabinets extend) |
| Typical cost | Significantly lower (50–70% of UPS cost) | Very expensive |
| Maintenance | Lower (no batteries to replace every 3–5 years) | Higher (battery replacement is major cost) |
| Efficiency | >97% | 93–96% typical (lower due to double conversion) |
| Footprint | Smaller (no battery cabinets) | Larger (requires battery cabinets) |
| Best for | Voltage fluctuation protection + pre-filtering for UPS | Blackout ride-through + voltage protection |
The optimal industrial setup for Nigeria: Generator → AVR → UPS → Critical Load. The AVR cleans the power before it reaches the UPS, which:
Chat with our team for a complete power solution design.
Q: What input voltage does the Vectronic 150kVA AVR accept?
The unit accepts 3-phase input from 170V to 480V (phase-to-phase, 50Hz ±5%). It is designed for the Nigerian standard of 380V/400V/415V but operates safely across the full range.
Protection actions:
Q: Does this AVR work with my generator?
Absolutely – and this is a primary use case. Many Nigerian industrial generators produce voltage that fluctuates by ±15–25%, especially under varying loads or with aging AVR cards. The Vectronic 150kVA stabilizes this dramatically.
Recommended setup:
Generator (150kVA or larger) → Vectronic 150kVA AVR → Main Distribution Board → Equipment
Benefits of AVR after generator:
Q: What is the physical size and installation requirements?
| SpecificationDetails | |
| Dimensions (W x D x H) | Approximately 1200mm x 850mm x 1900mm (47" x 33" x 75") |
| Weight | 650–850kg depending on transformer type (copper vs aluminum) |
| Shipping | Requires pallet jack or forklift; shipped on reinforced pallet |
Installation requirements:
Delivery and installation by certified Vectronic engineers – chat with us for a site survey and logistics planning.
Q: What is phase imbalance and why is it critical at 150kVA scale?
Phase imbalance means L1, L2, and L3 have different voltages (e.g., L1=215V, L2=195V, L3=225V). Causes in Nigeria:
The cost of imbalance at industrial scale (per NEMA/IEEE standards):
| Voltage ImbalanceMotor Temperature RiseTorque ReductionLifespan Reduction | |||
| 1% | 10% | Minimal | ~10% |
| 2% | 25% | 5–10% | ~25% |
| 3% | 40% | 10–15% | ~50% |
| 4% | 60% | 15–20% | ~70% |
| 5%+ | 80%+ | 20–30%+ | 90%+ (rapid failure) |
For a ₦5 million 60hp compressor: 3% imbalance = >50% lifespan reduction = >₦2.5 million in premature replacement costs.
The Vectronic 150kVA AVR corrects each phase independently, eliminating imbalance instantly.
Q: How efficient is the Vectronic 150kVA AVR?
Up to 97.5% efficiency at full load – meaning only 2.5% of input power is lost as heat. For a 150kVA unit under 80% load (120kVA), heat dissipation = approximately 3kW – manageable with proper ventilation.
Q: Can I install this AVR outdoors?
The standard unit is IP20 (indoor use only, protected against solid objects over 12mm, no water protection). For outdoor or dusty industrial environments, we recommend the IP54-rated enclosure (dust-tight and splash-proof from all directions). Chat with our team for outdoor installation requirements and pricing.
Q: What is the typical lifespan of a 150kVA industrial AVR?
With proper installation, regular maintenance, and operation within rated limits – 12–18 years minimum. Many Vectronic industrial AVRs from the early 2010s are still operating reliably in Nigerian factories today.
Q: What maintenance is required?
| FrequencyTask | |
| Quarterly (user) | Clean dust from external vents; check LCD display for fault codes; listen for unusual noises |
| Bi-annually (user) | Check and tighten all visible electrical connections; inspect cooling fan operation |
| Annually (technician) | Clean internal components (compressed air); inspect carbon brushes on servo motors; test protection functions; verify calibration; check all contactors and relays |
| Every 5–7 years (technician) | Replace carbon brushes; replace cooling fans (preventative); deep clean transformer |
Vectronic offers preventive maintenance contracts with quarterly visits – chat with our team for details.
Q: What is the warranty period?
Q: What spare parts should I keep on hand for minimal downtime?
Vectronic recommends keeping the following critical spares:
| Spare PartTypical LifespanApproximate Cost (for budgeting)Why Keep Spare? | |||
| Control board (main PCB) | 8–12 years | Moderate | Single point of failure; long lead time from overseas |
| Servo motor (per phase – 3 total) | 10–15 years | Moderate | Moving part; wear item |
| Carbon brushes (set – for all 3 servos) | 5–7 years | Low | Wear item; cheap to stock |
| Cooling fans (redundant pair) | 3–5 years | Low | Wear item; cheap to stock |
| Power contactors | 10+ years | Moderate | Electro-mechanical wear |
| LCD display (touchscreen) | 8–12 years (less in high heat) | Moderate | Long lead time |
Chat with our team about our preventive maintenance contract and spare parts package options – we can stock spares at your facility or ours.
Q: How do I correctly size a 150kVA AVR for my facility?
Step-by-step sizing method:
Example calculation:
This is critical engineering work. Chat with our team for a free professional load assessment – we'll send an engineer or remote consultant to help you size correctly.
Q: Can this AVR protect against lightning strikes?
The AVR has built-in Type 3 surge protection for typical industrial voltage spikes (up to 6kV). For direct or nearby lightning strikes (which can exceed 10–20kV), we strongly recommend installing additional Type 1 or Type 2 surge arresters upstream of the AVR at your main distribution board.
Chat with our team for lightning protection recommendations specific to your location and facility.
Q: Does the AVR require special input from my generator's existing AVR?
No. The Vectronic AVR is completely independent. Your generator already has a small internal AVR to regulate its excitation and output voltage. The Vectronic AVR further stabilizes that output – think of it as double protection.
Compatibility: Works with all major generator brands (Cummins, Perkins, FG Wilson, SDMO, Mikano, Elemax, Denyo, CAT, etc.)
Q: What is the approximate price of a Vectronic 150kVA 3-Phase AVR?
Pricing factors:
For an accurate, up-to-date quote, chat with us directly – we provide competitive pricing for industrial clients and can offer flexible payment options including leasing for qualifying businesses.
Your industrial equipment is a multi-million naira investment. Your production uptime is priceless. Protect both.
Get the Vectronic 150kVA (3-Phase) AVR at the best price in Nigeria – exclusively through Kara Nigeria Online Shop.
Ready to secure your industrial power? Need a site survey, professional load assessment, or customized engineering quote?
Tap the WhatsApp button now to speak with our industrial power solutions team – we'll schedule a free consultation, provide a detailed technical proposal, and connect you with Vectronic-certified engineers for installation and commissioning.