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₦22,068,500.00
"300kVA of Industrial Dominance. Voltage Perfection at Scale. Vectronic 300kVA 3-Phase AVR."
At this scale, you're not running a business. You're running an industrial empire.
Massive production lines. 100–200HP compressors. Entire cold storage warehouses. Full hospital imaging departments. Tier-3 data centers. Telecom backbone hubs. When your facility operates at this level, voltage instability isn't a maintenance issue – it's a catastrophic business risk.
A single brownout below 180V can crash a 500-ton injection molding machine mid-cycle – scrapping ₦10–20 million in raw materials. A sudden voltage spike can fry the control board of a ₦50 million compressor in milliseconds. A persistent 3–5% phase imbalance can reduce 100HP motor lifespan by 75% – turning a 15-year asset into a 3-year liability.
For heavy industrial giants running on massive 3-phase power – large-scale manufacturing plants, industrial cold storage mega-complexes, tertiary teaching hospitals, tier-3 data centers, telecom backbone facilities, and major industrial estates – power quality is the foundation of operational excellence.
Introducing the Vectronic 300kVA (3-Phase) Automatic Voltage Regulator – a heavy-industrial, mission-critical power fortress engineered for Nigeria's most demanding environments. 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 servo correction on each phase and copper-wound toroidal transformers for maximum efficiency and longevity.
Whether you're protecting a 300kVA generator, a fleet of 100–200HP industrial compressors, a hospital's entire imaging and critical care department, a tier-3 data center, or multiple production lines – the Vectronic 300kVA AVR is the ultimate armor for your most valuable assets.
Command your power. Protect your empire.
| FeatureBenefit | |
| 300kVA / 240kW true 3-phase rating | Powers massive industrial loads – entire factory wings, multiple 100–150HP compressors, hospital imaging suites with multiple MRI/CT units, data center pods, and large industrial estates. |
| Wide 3-phase input range: 170V – 480V phase-to-phase | Keeps operating during severe brownouts that would shut down lesser AVRs. Your facility stays online when utility voltage drops to dangerous levels – extremely common in Nigerian industrial zones with aging infrastructure. |
| Precise output: 380V/400V/415V ±3% (software selectable) | Delivers laboratory-grade voltage stability – protects sensitive PLCs, VFDs, medical imaging equipment (MRI/CT/Linear Accelerator/Cath Lab), servers, and precision industrial controllers worth hundreds of millions. |
| Independent 3-phase servo-motor correction with massive copper-wound toroidal transformers (per phase) | Each phase regulated individually with dedicated heavy-duty servo motor and oversized copper toroidal transformer. Eliminates severe phase imbalance – critical when utility supply is drastically unbalanced (e.g., L1=190V, L2=175V, L3=235V), a common issue in Nigerian industrial zones with overloaded distribution transformers. |
| Premium oversized copper windings (standard – never aluminum at this rating) | Superior conductivity, higher efficiency (>97.5% at full load), cooler operation, and significantly longer life (20–25+ years) than aluminum. At 300kVA, aluminum windings are a false economy – copper is the only professional choice. |
| Ultra-fast voltage correction: ≤ 8ms per volt | Near-instantaneous correction during rapid grid fluctuations or generator load changes. Your equipment never experiences dangerous voltage swings – even during lightning-fast dips or spikes. |
| Advanced industrial-grade digital microprocessor with 10-inch full-color LCD touchscreen | Complete real-time visibility: Input voltage (L1-L2, L2-L3, L3-L1, plus phase-to-neutral all three phases), output voltage, load current per phase (Amps), load percentage (kVA per phase and total), frequency (Hz), internal temperature, cooling fan status, power factor (per phase and overall), energy consumption (kWh accumulated), and fault history with precise time/date stamps. Full diagnostics without a technician. |
| High-visibility LED status panel with remote annunciator option | Quick visual checks from across the factory floor – green (normal), yellow (regulating), red (fault), blue (communications active). Optional remote annunciator panel for control rooms. |
| Heavy-duty automatic bypass switch with industrial contactors + manual override | If the AVR overloads or has an internal fault, the system automatically switches equipment directly to utility/generator power – zero extended downtime. Heavy-duty manual bypass enables maintenance without shutting down production. |
| Programmable time delay (0–120 seconds, multiple settable profiles) | Prevents servo and contactor stress during generator startup, grid flapping, or utility switching events. Multiple profiles for generator vs grid. Extends AVR lifespan significantly – critical for generator-fed facilities. |
| Massive overload capacity: 150% for 90 seconds, 200% for 20 seconds, 300% for 5 seconds | Handles enormous motor startup surges (large compressors, conveyors, extruders, injection molding machines, pumps, crushers, mills) without tripping or voltage drop. Designed for the toughest industrial starting conditions. |
| Full industrial protection suite with configurable thresholds | Over-voltage, under-voltage, over-current, short circuit, over-temperature, phase loss, phase sequence reversal, surge, spike, and harmonic distortion protection. All thresholds field-configurable for your specific equipment sensitivity. Automatic shutdown and loud audible alarm (110dB) on critical faults. |
| Phase loss + phase sequence reversal protection (sub-30ms response) | Prevents catastrophic motor damage if one phase disappears or phases are wired incorrectly. Shuts down safely within 30ms and alerts operator before damage occurs. |
| Ultra-heavy-duty industrial steel enclosure with reinforced frame (IP20 standard, IP54 optional, IP55 on request) | Dust-resistant, impact-resistant, vibration-resistant – built for the harshest Nigerian factory floors, generator rooms, and industrial environments. Floor-standing freestanding double-door cabinet with lockable tempered-glass front doors, full rear access panels, integrated forklift pockets, and heavy-duty lifting eyes. |
| Redundant intelligent cooling fans (N+2 configuration – 6 fans, 4 required) | Variable-speed fans ramp up only when needed – quieter operation, longer fan life, lower energy consumption. N+2 redundancy (two extra fans) ensures cooling continues even if two fans fail – critical for 24/7 industrial operations. Automatic fan speed control based on multiple internal temperature sensors. |
| RS-485 / Modbus RTU / Modbus TCP (Ethernet) / SNMP / PROFIBUS (optional) communication ports (standard) | Remote monitoring and integration with BMS, SCADA, PLCs, generator controllers, and network management systems. Real-time voltage and load alerts sent to your phone, email, or control room. API available for custom integration. |
| 12 configurable dry contact relay outputs (standard) | Connect to external sirens, flashing lights, building automation systems, remote annunciator panels, or automated generator controls for immediate fault notification anywhere in your facility. |
| Anti-condensation heaters with digital humidistat and temperature control (standard – not optional at this rating) | Prevents internal moisture buildup – absolutely critical for facilities in coastal cities (Port Harcourt, Calabar, Warri, Bayelsa, Lagos Island, Delta). Automatically activates based on humidity and temperature thresholds. |
| Per-phase manual voltage adjustment knobs with digital fine-tuning and remote adjustment option | Allows technician to fine-tune output voltage – useful for equipment with specific voltage requirements, commissioning, compensating for long cable runs (voltage drop), or seasonal grid variations. |
| Comprehensive data logging (180 days internal memory, expandable via SD card/USB/network storage) | Records voltage history (input/output per phase, load per phase, frequency, temperature, fault events, power factor, energy consumption) over days/weeks/months – invaluable for troubleshooting, warranty claims, insurance claims, predictive maintenance, or proving grid issues to your DisCo. Data exportable to CSV/Excel for analysis. Remote log access via network. |
| True RMS sensing with wide bandwidth and anti-aliasing | Accurate voltage and current readings even when grid power has significant harmonic distortion (THD up to 20%) – common with generator power, VFDs, rectifiers, UPS systems, and non-linear industrial loads. |
| Soft-start capability for large motor loads with programmable ramp time | Gradually ramps up voltage when starting large motors – reduces inrush current stress on the AVR, contactors, breakers, and your equipment. Programmable ramp time 1–30 seconds per motor start event. |
| Remote emergency shutdown (ERS) input (multiple zones) | Connect to facility emergency stop system(s) – instantly shuts down AVR output during emergencies for personnel safety. Multiple zone inputs for different areas of your facility. |
| Power factor monitoring with trend analysis | Monitor facility power factor in real-time with historical trends – helps identify when power factor correction capacitors are needed or failing. Exportable reports for energy management. |
| Energy consumption metering (kWh accumulated per phase and total) | Track energy usage through the AVR – useful for sub-metering, energy management programs, ISO 50001 compliance, and cost allocation. |
| Harmonic distortion monitoring (THD – voltage and current) | Monitor harmonic distortion levels in real-time – identify when VFDs or other non-linear loads are causing grid pollution that could affect other equipment. |
| Predictive maintenance alerts | AVR monitors its own health – alerts when carbon brushes need replacement, cooling fans show reduced RPM, internal temperatures exceed normal ranges, or contactor operations exceed recommended cycles. |
| Dual-ethernet ports for network redundancy | Two independent ethernet ports with failover – ensures remote monitoring continues even if one network switch fails. Critical for remote facilities and data centers. |
| Optional: Dual power supply inputs (AVR + separate control power) | Control system can be powered from separate source (e.g., small UPS) – ensures monitoring and communications continue even if main power fails completely. |
Your industrial empire represents billions in investment. Your production uptime determines your profitability. Protect both with the ultimate voltage armor.
Get the Vectronic 300kVA (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.