Hazrat Amanat Shah Spinning Mills Ltd.

Hazrat Amanat Shah Spinning Mills Ltd. — 12.5 MVA Industrial Power Substation | POWERtrac

Heavy Industry Demands Heavy-Duty Power. POWERtrac Delivers Both.

Large-scale textile manufacturing is one of the most power-hungry operations in Bangladesh's industrial sector. Spinning mills run around the clock, machines can't afford sudden voltage dips, and any power interruption translates directly into production loss and financial damage. For Hazrat Amanat Shah Spinning Mills Ltd. in Narsingdi, POWERtrac engineered a 12.5 MVA industrial substation that meets every one of those demands — head-on.

The Industrial Power Challenge

Spinning mills operate heavy motorized machinery continuously, placing relentless, fluctuating electrical loads on the supply system. This calls for a substation that doesn't just deliver power — it must regulate voltage precisely, protect against faults instantly, correct power factor automatically, and distribute electricity reliably across multiple production levels. A generic solution simply won't cut it. This project required expert industrial power engineering from the ground up.

What POWERtrac Delivered

12.5 MVA, 33/11 kV Power Transformer with OLTC: The heart of the installation — a large-capacity On-Load Tap Changer transformer that actively adjusts voltage under live load conditions, maintaining stable supply to sensitive spinning machinery regardless of grid fluctuations.

33 kV Auto Circuit Recloser (ACR): Automatic fault detection and circuit restoration at the high-voltage entry point, minimizing downtime and protecting the entire facility from grid-side disturbances without requiring manual intervention.

33 kV Protection Suite: A complete protection layer comprising a 33 kV Isolator with Earth Switch, Lightning Arresters, and Current & Potential Transformers (CT & PT) for accurate metering, system protection, and personnel safety during maintenance.

Indoor 33 kV HT Switchgear (VCB): Vacuum Circuit Breaker-based high-tension switchgear provides reliable and maintenance-friendly switching and fault protection at the primary 33 kV level.

11 kV HT Switchgear: Secondary high-tension distribution switchgear steps the power down for controlled distribution to sub-feeders and distribution transformers across the factory floor.

2.5 MVA Distribution Transformers: Step-down transformers deliver appropriately rated voltage to specific production zones and ancillary areas within the mill complex.

LT Switchgear up to 4000A: High-capacity low-tension switchgear panels manage the final distribution of power to all machinery, lighting, utilities, and control systems across the facility.

Automatic PFI Plant — 1500 kVAR: An automatic Power Factor Improvement plant continuously monitors and corrects the mill's power factor, reducing reactive power consumption, cutting electricity bills, and protecting transformers and motors from overloading.

Full Testing, Commissioning & Grid Synchronization: The entire system was rigorously tested and synchronized with the national grid before handover, ensuring safe, stable, and fully compliant operation from day one.

The Result

A complete, fully integrated 12.5 MVA industrial power infrastructure that gives Hazrat Amanat Shah Spinning Mills Ltd. the electrical backbone to run at full production capacity — continuously, safely, and efficiently. The installation significantly reduced operational downtime, improved voltage stability across all production zones, and optimized energy consumption through automatic power factor correction.

For a spinning mill that runs on every kilovolt-ampere it can get, this is the power infrastructure it deserves.