The document highlights the significance of power quality audits for maintaining electrical systems, protecting equipment, and preventing hazards. Poor power quality can lead to various issues such as equipment damage, energy loss, and operational failures. A power quality audit detects ongoing problems, provides insights for maintenance, and suggests remedies to ensure the safe and efficient functioning of electrical systems.

1. WHY POWER
QUALITY AUDIT IS
IMPORTANT ??
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2. YOU MUST TAKE CARE OF YOUR ELECTRICAL SYSTEM –
 FOR EFFICIENT AND SMOOTH RUNNING OF THE SYSTEM
 FOR PROTECTION OF YOUR ELECTRICAL EQUIPMENT FROM DAMAGE
 FOR INCREASING LIFE OF YOUR ELECTRICAL EQUIPMENT
 FOR PROTECTION FROM ANY ELECTRICAL HAZARDS IN FUTURE
 FOR REDUCTION OF YOUR ELECTRICITY BILLS
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3. The increased sensitivity of the vast
majority of processes (industrial, services
and even residential) to Power Quality
problems turns the availability of electric
power with quality a crucial factor for
competitiveness in every activity sector.
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4. Power quality determines the fitness of
electrical power to consumer devices.
Without the proper power, an electrical
device (or load) may malfunction, fail
prematurely or not operate at all.
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5. POOR POWER QUALITY CAN LEAD TO-
VOLTAGE FLUCTUATIONS
EQUIPMENT DAMAGE
TEMPERATURE RISE IN CABLES, MOTORS ETC.
LOSS OF ENERGY
DEGRADATION OF ELECTRICAL SYSTEM
SHORT CIRCUITS
AND MANY MORE ISSUES.......
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6. • Variations in the peak or RMS voltage.
• RMS voltage exceeding the nominal voltage by 10 to 80% for 0.5 cycle to 1
minute.
• RMS voltage getting below the nominal voltage by 10 to 90% for 0.5 cycle to 1
minute.
• Random or repetitive variations in the RMS voltage between 90 and 110% of
nominal
• Abrupt, very brief increases in voltage, called "spikes", "impulses", or "surges",
• Under voltage or Voltage drop occurs when the nominal voltage drops below
90% for more than 1 minute.
• "Overvoltage" occurs when the nominal voltage rises above 110% for more than
1 minute.
• Variations in the frequency.
• Variations in the wave shape – usually described as harmonics.
SOME OF THE POWER QUALITY ISSUES
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7. WHY POWER QUALITY INSPECTION IS IMPORTANT ??

8. YOU MAY NOT BE AWARE OF ISSUES YOU
ARE FACING IN YOUR ELECTRICAL SYSTEM
DUE TO POOR POWER QUALITY
DIAGNOSIS OF POWER QUALITY IS IMPORTANT FOR –
• EQUIPMENT SAFETY
• OCCUPATIONAL SAFETY
• AS WELL AS ENERGY LOSSES
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9. POOR POWER QUALITY NOT ONLY LEADS TO HEAVY ENERGY
LOSSES BUT ALSO RESPONSIBLE FOR SHORT CIRCUITS AND
OTHER ELECTRICAL HAZARDS.
HENCE AUDIT SHALL COVER POWER QUALITY INSPECTION TO
DETERMINE ANY ONGOING ENERGY LOSSES DUE TO POOR
POWER QUALITY OR ANY SAFETY CONCERN FOR EQUIPMENT
LIFE AS OCCUPATIONAL SAFETY.
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10. CASE STUDY
ONGC
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11. • AN ENERGY MONITORING SYSTEM WAS INSTALLED
LAST MONTH AT ONGC WHICH RECORDS DAILY
ELECTRICAL & ENERGY DATA
• THE DATA IS CAPTURED ONLY FROM ONE LOCATION
BUT IS GIVING US VALUABLE INFORMATIONS ON THE
BEHAVIOUR OF VOLTAGE AND OTHER PARAMETERS
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12. AS PER THE RECORDED DATA, THE
VOLTAGE TREND IS FOUND TO BE
ABNORMAL IN NATURE WHICH IS ONE OF
THE MAIN REASONS OF POOR POWER
QUALITY
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13. THE VOLTAGE IS FOUND TO BE QUITE FLUCTUATING IN
NATURE AND AS PER THE FIGURE BELOW, IT HAS ALSO
CROSSED THE PERMISSIBLE SHOWING POOR POWER
QUALITY.

14. THE VOLTAGE LEVEL SHOULD BE MAINTAINED
WELL WITHIN THE PERMISSIBLE LIMITS AT ALL
RUNNING CONDITIONS.
ANY VOLTAGE SPIKE IS UNWANTED AND LEADS TO
POOR POWER QUALITY.
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15. NOW THIS WAS ONLY A SAMPLE RESULT SHOWING VOLTAGE
TREND CAPTURED AT ONLY ONE LOCATION.
WE DON’T KNOW WHAT TYPE OF POWER QUALITY ISSUES
GOING ON AT VARIOUS LOCATIONS WITHIN THE ENTIRE
ELECTRICAL DISTRIBUTION SYSTEM AND HOW THEY ARE
AFFECTING THE ELECTRICAL SYSTEM
SO THERE IS NEED OF THOROUGH INSPECTION OF THE
ELECTRICAL SYSTEM AND THIS IS WHY YOU NEED TO
GO FOR POWER QUALITY AUDIT OF YOUR ELECTRICAL
DISTRIBUTION SYSTEM
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16. • POWER QUALITY AUDIT WILL HELP YOU DETECT ALL
KINDS OF ONGOING POWER QUALITY ISSUES
• IT SHALL HELP YOU UNDERSTAND THE PROBLEMS
RELATED TO THOSE ISSUES
• IT SHALL GUIDE YOU IN BEST MAINTENANCE OF YOUR
SYSTEM
• IT SHALL SUGGEST YOU HOW TO AVOID ANY FUTURE
EQUIPMENT FAILURES ETC..
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17. ONGOING PROBLEMS IN LIFTS AT THE ONGC – NOIDA CAMPUS
CAN BE DUE TO POOR POWER QUALITY.
ACTUAL ROOT CAUSE OF IT’S MALFUNCTION CAN’T BE
DETECTED UNLESS YOU OPT FOR POWER QUALITY INSPECTION.
IT’S DIFFICULT TO SAY WHAT KIND OF POWER QUALITY ISSUE
AFFECTING YOUR LIFTS NOW.
ATLEAST YOU WILL BE ABLE TO SOLVE THE PROBLEM IF THE
MALFUNCTION OF YOUR LIFTS IS DUE YO ANY OF THE POWER
QUALITY ISSUES.
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18. SO POWER QUALITY AUDIT IS IMPORTANT-
• TO DETECT ANY POWER QUALITY ISSUES
• REASONS FOR POWER QUALITY ISSUES
• TRACE THE AREA WHICH IS CREATING PROBLEMS
• SUGGEST BEST REMEDIES.
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19. OPT FOR POWER QUALITY AUDIT
• PROTECT YOUR ELECTRICAL EQUIPMENT FROM DAMAGE
• PROTECT YOUR ELECTRICAL DISTRIBUTION SYSTEM
• AVOID ANY ELECTRICAL HAZARDS
• SAVE ANY ONGOING ENERGY LOSSES
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20. ASK US FOR POWER QUALITY AUDIT

21. BODY HEALTH HECK UP ELECTRICAL HEALTH CHECK UP
DOCTOR INSPECTS BODY WE INSPECT YOUR ELECTRICAL SYSTEM
USE OF EQUIPMENT TO DETECT PROBLEMS USE OF EQUIPMENT TO DETECT PROBLEMS
DOCTOR DETECT DISEASE IF ANY WE DETECT ISSUES IF ANY
DOCTOR POINT OUT LEVEL OF PROBLEM WE POINT OUT LEVEL OF PQ PROBLEM
DOCTOR TELLS IT'S AFFECT ON YOUR BODY WE EXPLAIN THE AFFECT ON ELECTRICAL SYSTEM
DOCTOR SUGGESTS CURE WE RECOMMEND BEST SOLUTIONS AS APPLICABLE
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22. POWER QUALITY AUDIT SHALL HELP YOU IN SMOOTH
RUNNING OF YOUR SYSTEM AND KEEP YOU SAFE AND
SOUND AS WELL HAVE MONETARY GAINS.
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23. WHERE THE STUDY SHALL BE CONDUCTED ??
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24.  POWER QUALITY INSPECTION IS DONE AT THE MAIN HT/LT
PANEL WHERE THE POWER ENTERS YOUR FACILITY.
 IT IS CARRIED ON TO THE VARIOUS ELECTRICAL FEEDERS
 ALSO COVERS THE LOAD END

25. POWER
QUALITY
INSPECTION
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26. ALSO GO FOR HOT SPOT ANALYSIS
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27. • IT’S NOT POSSIBLE TO DETECT ANY LOOSE
CONNECTIONS OR RUSTING ISSUES INSIDE
ELECTRICAL PANEL CABLES, BUS BARS,
DISTRIBUTION BOARDS AND OTHER AREAS
WITHIN THE ELECTRICAL SYSTEM BY
VISUAL INSPECTION
• USE OF HIGHLY
EFFICIENT THERMAL
CAMERA DONE TO
CAPTURE HOT SPOTS.
IMPORTANT FOR
ENERGY
CONSERVATION AS
WELL FOR SAFETY
ISSUES.

28. • AVOID SHORT CIRCUITS
• PROTECT YOUR ELECTRICAL EQUIPMENT
FROM DAMAGE
• PROTECT YOUR ELECTRICAL SYSTEM
• STAY SAFE
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29. CONTACT US
PM ELECTRONICS
+91-7210031004
sales@pmelectronics.in
www.pmelectronics.in
G-248,2nd FLOOR ,SECTOR 63,NOIDA-201301
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