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PPCL

Electrical Engineering

PPlus delivers safe, reliable, and audit‑ready electrical engineering for industrial facilities.

Our designs integrate power quality, protection coordination, hazardous‑area compliance, redundancy planning, and multidisciplinary alignment, ensuring uninterrupted operations and long‑term system stability.

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Load engineering, SLDs & protection coordination

We engineer complete electrical system logic from load estimation to protection.

  • Connected load, maximum demand & diversity factor calculations.
  • HT/LT single‑line diagrams with protection logic & fault‑level studies.
  • Relay coordination, breaker sizing & arc‑flash considerations.
  • Control schematics, interlocks & fail‑safe circuit design.
  • ETAP‑based load flow, short‑circuit & protection coordination studies.

We design robust, safe and redundant power distribution networks.

  • HT/LT distribution architecture with transformer, RMU & switchgear integration.
  • Equipment earthing, clean earthing & grounding networks.
  • Cable routing via trays, trenches & raceways with voltage‑drop compliance.
  • DG sizing, synchronization, AMF systems & UPS redundancy planning.
  • Surge protection and fault‑current dissipation design.

We prepare precise technical documentation for predictable procurement.

  • Datasheets for transformers, switchgear, motors, VFDs, UPS & DG sets.
  • Panel specifications (PCC, MCC, APFC, VFD) with protection & metering details.
  • Cable schedules, material take‑offs & electrical BOQs.
  • Vendor package preparation, techno‑commercial evaluation & compliance checks.
  • Interface coordination with process, HVAC & utility equipment vendors.

We engineer lighting systems for industrial reliability and safety.

  • Industrial, cleanroom & outdoor lighting layouts.
  • Dialux‑based lux‑level calculations for all work zones.
  • Emergency lighting & escape route illumination.
  • Task lighting for critical process areas.
  • Lightning arrester integration for building protection.

We design practical and coordinated small‑power systems.

  • Distribution for process, utility & control areas.
  • Socket layouts, equipment power points & service outlets.
  • Segregation of power, control & instrumentation circuits.
  • Dedicated circuits for sensitive loads.
  • Integration with mechanical, process & utility equipment.

We design electrical systems for hazardous and explosive environments.

  • Selection of flameproof / explosion‑proof equipment for Zone 0/1/2.
  • Hazardous area classification & compliance with IS/IEC/NFPA standards.
  • Ex‑rated cable glands, junction boxes & enclosures.
  • Earthing & bonding systems for hazardous zones.
  • Electrical safety audits & risk assessments.

We ensure practical, clash‑free cable management across disciplines.

  • Cable sizing, voltage‑drop & short‑circuit calculations.
  • Tray, trench & raceway routing with 3D coordination.
  • Termination details & cable scheduling.
  • Separation of power, control & instrumentation cabling.
  • Integration with mechanical, process & utility routing.

We ensure electrical systems meet all safety and regulatory requirements.

  • Compliance with IEC, IS, NFPA & industrial electrical safety codes.
  • Static grounding, bonding networks & anti‑static flooring integration.
  • Lightning protection systems with down‑conductor routing.
  • Surge protection devices for panels & sensitive equipment.
  • Hazardous‑area safety documentation & risk mitigation plans.

We use licensed, industry‑standard software for accurate electrical design.

  • AutoCAD / Revit — electrical layouts & 3D coordination.
  • ETAP / E‑Plan — load flow, short‑circuit & protection studies.
  • Dialux — lighting design & lux‑level calculations.
  • Navisworks — clash detection & multidisciplinary integration.
  • Contractor‑friendly review — via Navisworks Freedom.

Other services

FAQs

How does PPlus ensure electrical systems remain safe and reliable?

Through accurate load engineering, protection coordination, earthing design, redundancy planning, and power quality management, ensuring systems operate safely under all conditions.

Yes. We design HT yards, RMUs, transformers, DG systems, switchgear, and coordinate with utility providers for approvals and integration.

By using clear routing, practical layouts, vendor coordination, and 3D clash‑free detailing, ensuring predictable installation and zero rework.

Ready to Engineer Your Next Facility Right?

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