PPT on Power Quality Measurement for Energy Audit

Presentation/seminar on power quality measurement for energy audit :
  
 Concepts in this ppt

   qEnergy Audit
      An energy audit consists of :

ØDetailed examination of how a facility uses energy

ØWhat the facility pays for that energy

Ø A recommended program for changes in operating practices or energy consuming equipment.

Key element of  effective energy management program.Why ? In order to improve the energy efficiency and reduce the energy operating costs of a facility

qPower Quality

     qPower supply that is free of disturbance.

   qAnalysis of “Power Quality” :

ØAllow the system to operate properly

ØEfficiently

ØMinimize long term risk to that equipment

qSource of Power Quality Problems

      Connections in the power and transmission network Connection and disconnection of electrical loads Lightning strikes Disturbing electrical apparatus Weak power and transmission networks .Variable power production.

qPower Quality: Measuring to Manage

        Systematic monitoring of the following power quality problems:

ØHarmonics

Ø Voltage Sag and Swell

ØTransients

ØImbalance(specifically in motor applications).

qSolving Power Quality problems

     qTransients : Transient Voltage Surge Suppressors are the best option for protecting against transients in a power system.

   qVoltage Sags and Interruptions : Uninterruptible power supplies and other energy-storage options could do well with shorter-term sags.

     Back-up generators or self-generation equipment is needed when longer outages are encountered.

     Other solutions could include static transfer switches and dynamic voltage restorers with energy storage.
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