Reliability Improvement & Assessment Study For Electrical System

This Includes :

  • Study of Existing Systems
    1.  Review of Engineering documents
    2.  Existing drawings
    3.  Documentation
    4.  Test Reports
    5.  Abnormal Occurrence Reports and
    6.  Post-Mortem analysis Reports.
  • Visit To Site
    1.   Visual / Physical Inspection
    2.  Site Conditions
  • Testing
    1.  Prepare check list for individual equipment
    2.  Conduct the Tests
    3.  Submit test reports with recommendation for immediate implementation for any remedial measures
    4.  Review Compatibility due to aging of,

    a) Equipment
    b) Protection Systems (Relays)
    c) Vis-a-Vis Present day technology

  • Review /Study the benefits of modernization if carried out
  • Equipments for Testing
    1.  Switchgear and switchboard assemblies
    2.  Transformers
    3.  Cables
    4.  Metal enclosed busways
    5.  Circuit Breakers
    6.  Protective Relays
    7.  Instrument Transformers
    8.  Grounding Systems
  • Rotating Machinery
    1. Motors
    2. Generators
  • DC System
  • Emergency System
  • Electrical Safety Equipment
  • Human/Equipment Safety
    1. Review of Grounding, Earthing & Bonding of electrical Systems
    2. Defined path for return of fault current back to source
    3. Positive operation of ground fault relaying (by Testing)
  • Design Engineering
    1. Load flow, Short Circuit Studies :

    Conduct load flow & short circuit studies to verify equipment rating under steady state and transient conditions

    2. Relay setting-Relay Co-ordination :

    Comprehensive relay setting & Co-ordination exercise to achieve sensitive, selective and speedy fault clearances.

    3. Generator Islanding-Load Shedding Scheme :

    Islanding and Load shedding studies to save most critical loads with available generation in case of emergency and to avoid complete black outs.