Sri Ranga Electricals successfully executed the erection and installation of a 110 kV Switchyard for JSW, demonstrating our expertise in high-voltage electrical infrastructure projects. The scope of work included the erection of switchyard structures, installation of electrical equipment such as circuit breakers, isolators, current transformers (CTs), potential transformers (PTs), lightning arresters, bus bars, and associated control and protection systems.

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Our team carried out equipment alignment, bus bar stringing, grounding and earthing works, cable laying and termination, as well as testing and commissioning activities in accordance with industry standards and safety regulations. The project was completed with a strong focus on quality, operational reliability, and adherence to project timelines, ensuring seamless integration with the power distribution network and supporting uninterrupted industrial operations.

 

Key Highlights:

• Erection and installation of 110 kV switchyard equipment.

• Structure fabrication, erection, and bus bar assembly.

• Cable laying, termination, and control wiring.

• Earthing and lightning protection system installation.

• Testing, commissioning, and compliance with utility standards.

• Safe execution with strict adherence to quality and safety protocols.

1. Project Overview & Objectives

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Sri Ranga Electricals successfully executed the end-to-end engineering, assembly, testing, and commissioning of a 500 kVAR Automatic Power Factor Correction (APFC) Panel. The primary objective was to optimize power quality, maintain a targeted lag power factor near unity (0.99), reduce inductive load line losses, and ensure compliance with utility grid standards to eliminate low power factor penalties.

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2. Scope of Work

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• Engineering & System Design: Calculation of reactive power requirement, stage sizing, and single-line diagram (SLD) finalization.

• Procurement & Component Selection: Selection of heavy-duty duty capacitors, detuned reactors, contactors/thyristor switches, and intelligent microprocessor-based APFC controllers.

• Panel Fabrication & Assembly: Enclosure design, copper busbar sizing, internal layout wiring, and thermal management.

• Testing & Quality Control: Factory Acceptance Testing (FAT) and insulation resistance/dielectric checks.

• Installation & Commissioning: On-site placement, cabling, current transformer (CT) integration, Site Acceptance Testing (SAT), and parameter tuning.