ELECTRICAL SYSTEM TESTING & COMMISSIONING SERVICES                       

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RELIABILITY IMPROVEMENT  & ASSESSMENT STUDY FOR ELECTRICAL SYSTEM

APPROACH PLAN

STUDY OF EXISTING SYSTEMS

   a) Review of Engineering documents

  d) Test Reports

   b) Existing drawings

  e) Abnormal Occurrence Reports

   c) Documentation

  f) Post-Mortem analysis Reports

VISIT TO SITE

 a) Visual / Physical Inspection  

  b) Site Conditions

TESTING

a) Prepare check list for individual equipment

b) Conduct the Tests

c) Submit test reports with recommendation for immediate implementation for any remedial  
    measures

d) Review Compatibility due to aging of,
    Equipment
    Protection Systems (Relays) 
    Vis-a-Vis Present day technology

e) Review /Study the benefits of modernization if carried out

f)  Equipments for Testing
     Switchgear and switchboard assemblies
     Transformers
     Cables
     Metal enclosed busways
     Circuit Breakers
     Protective Relays
     Instrument Transformers
     Grounding Systems

g) Rotating Machinery
     Motors
     Generators

h) DC System

i)  Emergency System 

j)  Electrical Safety Equipment

HUMAN/EQUIPMENT SAFETY

a) Review of Grounding, Earthing & Bonding of electrical Systems

b) Defined path for return of fault current back to source

c) Positive operation of ground fault relaying (by Testing)

DESIGN ENGINEERING

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

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

c) 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.

  Click for the Reference List