electrical-maintenance · Nigeria · Victoria Island, Lagos
The client experienced severe voltage fluctuations, frequent low voltage drops, and unstable power supply from the grid/generator, risking damage to sensitive electrical equipment, control panels, and motorized building systems.
Humelix Limited supplied, installed, and commissioned a heavy-duty 20 kVA 3-phase servo automatic voltage regulator. The scope included setting up the microcontroller PCB control system (SBW-S22), calibrating the copper variac coils and chain-drive mechanism, integrating the main MCCB overcurrent protection, and wiring the 3-phase AC contactor for reliable stabilization and bypass control.
Achieved steady, regulated 415V three-phase output voltage, completely eliminating voltage sag and protecting downstream equipment from electrical damage, ensuring continuous and seamless facility operations.
20 kVA 3-Phase Servo AVR, Copper Variable Transformers (Variacs), SBW-S22 PCB Controller, Molded Case Circuit Breaker (MCCB), 3-Phase AC Contactor, Phase-Color Coding Cables, Control Terminals.
Implemented strict electrical isolation (Lockout/Tagout - LOTO), utilized appropriate PPE (insulated tools, safety boots, gloves), verified proper system earthing, and performed rigorous pre-commissioning voltage checks before final handover.
Carried out comprehensive insulation testing, live phase calibration, and handed over complete operational documentation with maintenance guidelines to the facility management team.
Client Comment“HUMELIX TEAM delivered a prompt and professional power solution. Our equipment is now fully shielded from voltage fluctuations.”
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