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₦29,842,500.00
"500kVA of Industrial-Grade Voltage Armor – Vectronic AVR 500kVA (3-Phase)."
In Nigerian industry, voltage isn't just a number. It's the difference between production and downtime, profit and loss, growth and stagnation.
One sustained brownout below 180V can shut down your entire factory. One sudden spike above 300V can destroy CNC machines, industrial ovens, compressors, and control panels worth millions of naira.
Enter the Vectronic AVR 500kVA (3-Phase) – a heavy-duty automatic voltage regulator engineered for large-scale industrial, commercial, and institutional facilities. This is not a consumer stabilizer. This is power conditioning at an industrial scale – designed to take unstable 3-phase input (from 170V to 480V) and deliver clean, balanced, regulated 380V/400V/415V output to your entire facility.
Whether you're running a manufacturing plant, a hospital, a data center, a telecommunications hub, a large cold storage facility, a shopping mall, a university campus, or a high-rise office building – the Vectronic 500kVA AVR ensures your mission-critical equipment receives stable, safe, and efficient power – 24/7, 365 days a year.
Stop guessing. Stop replacing burnt motors. Start regulating.
| FeatureBenefit | |
| 500kVA / 400kW true 3-phase rating | Supports massive industrial loads – entire factory floors, multiple chillers, large HVAC systems, industrial ovens, elevators, and production lines. |
| Wide 3-phase input voltage range: 170V – 480V (phase-to-phase) | Operates during severe brownouts and overvoltages common in Nigerian industrial zones with poor grid infrastructure. Keeps your facility running when others shut down. |
| Precise output regulation: 380V/400V/415V ± 1% (selectable) | Delivers laboratory-grade voltage stability – protects sensitive PLCs (Programmable Logic Controllers), VFDs (Variable Frequency Drives), medical imaging equipment, and precision manufacturing tools. |
| 3-phase independent correction (servo-motor + toroidal autotransformer) | Each phase is regulated individually. Perfect for unbalanced loads or when utility supply has different voltages on different phases. |
| High-efficiency toroidal transformer (up to 98% efficiency) | Low energy losses = lower electricity bills. Runs cooler and quieter than traditional EI-core transformers. |
| Fast voltage correction response: ≤ 10ms per volt | Instantaneous correction during rapid grid fluctuations – no dangerous delays that could damage sensitive electronics. |
| Digital microprocessor control with LCD touchscreen + LED indicators | Real-time monitoring: Input voltage (L1-L2, L2-L3, L3-L1, plus phase-to-neutral), output voltage, load current (per phase), load percentage, temperature, and fault history. |
| Automatic bypass (manual or automatic) | In case of AVR overload or internal fault, the system automatically (or manually) switches equipment directly to utility power – zero extended downtime. |
| Adjustable time delay (0–30 seconds) | Prevents relay and servo stress during generator startup or grid flapping. Extends equipment lifespan. |
| Overload capacity: 150% for 30 seconds, 200% for 5 seconds | Handles massive motor startup surges (conveyors, compressors, pumps, elevators) without tripping or voltage drop. |
| Full protection suite | Over-voltage, under-voltage, over-current, short circuit, over-temperature, phase loss, and phase sequence protection built in. Automatic shutdown and alarm on critical faults. |
| Phase loss / phase reversal protection | Prevents equipment damage if utility power loses one phase or phases are wired incorrectly. |
| RS-485 / Modbus / SNMP communication port (optional add-on) | Remote monitoring and integration with building management systems (BMS), SCADA, or generator controllers. Receive real-time alerts on your phone or computer. |
| Heavy-duty industrial-grade enclosure (IP20 or higher on request) | Dust-resistant and impact-resistant casing – built for Nigerian factory floors, generator rooms, and harsh environments. Floor-standing cabinet design. |
| Anti-condensation heaters (optional for humid environments) | Prevents internal moisture buildup – critical for facilities in coastal or high-humidity Nigerian cities like Port Harcourt, Calabar, or Lagos Island. |
| Manual voltage adjustment knob | Allows operator to fine-tune output voltage within the regulation band – useful for equipment requiring exact voltage. |
| Parallel / redundant configuration capability | Run multiple AVRs in parallel for higher total capacity or N+1 redundancy for 99.999% uptime. |
| IndustryWhy They Need It | |
| Manufacturing / Production | CNC machines, injection molding, conveyor belts, industrial ovens – all require stable voltage to maintain product quality and prevent scrap. |
| Cold Storage / Food Processing | Compressors and refrigeration units burn out fastest from undervoltage. A 500kVA AVR protects millions of naira in inventory from spoilage. |
| Hospitals / Medical Centers | MRI, CT scanners, X-ray machines, ventilators, and lab equipment have ultra-sensitive power requirements. Voltage instability causes image artifacts, equipment errors, and downtime. |
| Data Centers / IT Hubs | Servers, storage arrays, and networking gear need clean, stable power to prevent data corruption and hardware failure. |
| Telecommunications (Cell Towers / Exchanges) | Base transceiver stations (BTS) and switching equipment must stay online 24/7 – AVR bridges the gap between unstable grid and sensitive telco gear. |
| Shopping Malls / Commercial Complexes | Escalators, elevators, HVAC, lighting, POS systems – one voltage dip can disrupt customer experience and tenant operations. |
| Universities / Large Schools | Computer labs, science equipment, libraries, administrative servers – thousands of students and staff depend on stable power. |
| Hotels / Hospitality | Guest comfort depends on working ACs, elevators, kitchen equipment, and entertainment systems – all protected by centralized AVR. |
| Banks / Financial Institutions | ATMs, servers, security systems, and teller equipment must operate flawlessly – voltage regulation is non-negotiable. |
| Water Treatment / Pumping Stations | Large pumps and motors are vulnerable to undervoltage damage. AVR ensures continuous water supply to communities. |
Additional trust signals:
Q: What is the difference between an AVR and a UPS at 500kVA scale?
An AVR regulates voltage only – it does not provide battery backup. A UPS at 500kVA provides both voltage regulation AND battery power during blackouts (typically 5–15 minutes). Most large Nigerian facilities use a combination: AVR → UPS → Generator. The AVR cleans the voltage before it reaches the UPS and generator, extending their lifespan and preventing nuisance transfers.
Q: How much equipment can a 500kVA AVR support?
A 500kVA (400kW) AVR can support approximately:
For accurate sizing, chat with our team with your equipment list – we provide free load assessments for serious inquiries.
Q: What is "3-phase" and why do I need it for 500kVA?
Single phase is what most Nigerian homes use (220V). 3-phase delivers three alternating currents, each 120° apart, providing smoother, more efficient power for large motors and heavy equipment. Any load above approximately 20kVA should be on 3-phase. A 500kVA AVR specifically requires 3-phase input and delivers 3-phase output.
Q: What input voltage does the Vectronic 500kVA AVR accept?
The unit accepts 3-phase input from 170V to 480V (phase-to-phase). It is designed for the Nigerian standard of 380V/400V/415V (50Hz) but will operate safely across the full range. Below 170V or above 480V, the AVR will shut down automatically to protect itself and your equipment – then auto-restart when voltage returns to safe range.
Q: Does this AVR work with my generator?
Absolutely. In fact, large facilities use AVRs specifically to clean generator output. Many Nigerian generators (especially older or poorly maintained units) produce voltage that fluctuates by ±15% or more. The Vectronic AVR stabilizes this before it reaches your equipment. The adjustable time delay also prevents AVR hunting during generator warm-up.
Q: What is the physical size and installation requirements?
Typical dimensions: Approximately 1200mm (W) x 800mm (D) x 2000mm (H) – roughly the size of a large industrial refrigerator or two server racks side by side. Weight: 500–700kg depending on exact configuration. Requires:
Delivery and installation by certified Vectronic engineers – chat with us for a site survey.
Q: How efficient is the Vectronic 500kVA AVR?
Up to 98% efficiency at full load – meaning only 2% of input power is lost as heat. For a 500kVA unit under heavy load, that's approximately 10kW of heat dissipation – requiring proper ventilation in the installation room (air conditioning or forced air extraction recommended).
Q: Can I install this AVR outdoors?
The standard unit is IP20 (indoor use only, protected against solid objects over 12mm). For outdoor or dusty industrial environments, we recommend the IP54-rated enclosure (dust-tight and splash-proof). Chat with our team for outdoor installation requirements.
Q: Does the AVR consume electricity when my equipment is off?
Yes, a small amount (typically 2–5kVA) for the control system, transformer idle losses, and cooling fans. For large facilities, this is negligible compared to total consumption. During extended shutdowns (weeks or months), you can install an upstream isolator to completely power off the AVR.
Q: What is the typical lifespan of a 500kVA AVR?
With proper installation, regular maintenance (cleaning filters, checking connections, testing relays annually), and operation within rated limits – 10–15 years minimum. Many industrial AVRs last 20+ years with proper care.
Q: What is the warranty period?
Q: What spare parts should I keep on hand?
Vectronic recommends keeping:
Chat with our team about our preventive maintenance contract and spare parts package options.
Q: How do I size an AVR for my facility?
You'll need to calculate your total connected load in kVA. Steps:
This is complex. Chat with our team for a free professional load assessment – we'll send an engineer or remote consultant to help you size correctly.
Q: What is the approximate price of a Vectronic 500kVA AVR?
Pricing varies based on:
For an accurate, up-to-date quote, chat with us directly – we provide competitive pricing for industrial clients and can offer payment plans or leasing options for qualifying businesses.
bUnstable voltage is a business risk you cannot afford to ignore.
Protect your facility, your equipment, and your bottom line with the Vectronic AVR 500kVA (3-Phase) – available exclusively through Kara Nigeria Online Shop.
Ready to secure your industrial power? Need a site survey, load assessment, or customized quote?
Tap the WhatsApp button now to speak with our industrial power solutions team – we'll schedule a free consultation, provide a detailed proposal, and connect you with Vectronic-certified engineers for installation.