Electrical Systems

An independent 66 KV line from the State utility (Punjab State Electricity Board) feeds on-site 66KV substation having two 66/11 KV transformers each rated at maximum of 8 KVA.  Five 11 KV lines feed the two substations.

A 415V network supplies power to the Fab and all other utilities which has a connected load of 11 MW and a contract demand of 7 MVA

The facility is supported by three emergency generators that have a combined capacity of 3125 KVA supporting life-safety systems, ultra Pure Water Plant, Fresh air make-up, process exhaust, Process Cooling Water, CDA, etc.

SCL is exempted from power cuts having been categorized for its continuous power requirement.  This ensures reliable power supply with minimal brown outs and power outages.  This is further backed-up by uninterruptible power supplies (UPS) for all the process equipment and control and communication systems.

66KV sub Station

Energy conservation is under constant focus of SCL. Towards this end following measures are undertaken:

1.

Maintaining power factor above the threshold limit prescribed by PSEB to optimize capacity utilization of transformers, cables etc.
 

Optimization of operations of air-conditioning plants, selective switching-off of AHUs and sparing use of Hot Water Generators.
 

Switching-off of lights and other energy consuming equipment as and when not required.
 

Timely maintenance of compressors, optimizing pressuring settings, rescheduling of operations during non-production hours and minimizing leakages and pressure drops.
 

Grouping and re-adjustment of loading of transformers and save No Load Losses.
 

Use of energy efficient equipment/systems.
 

Conducting Energy Audits of various installations through independent agency and initiating action for implementation of Energy Saving recommendations.
 

8.

Bringing awareness about energy saving measures among the employees through regular discussion/interactions etc.