Power Quality Analysis

• Switchgear in organization and substations
• Transformers
• Power transmission lines
• Distribution panels, circuit breakers and conductors

• Computer and low voltage systems
• Machine control Panels
• PLCs (Valves and Relays)

• Infrared thermal imaging can help detect problems like inductive heating, hot bus bars, overloaded circuits, and many undesirable electrical situations
• Can be used to measure or observe in areas inaccessible or hazardous for other methods
• A non-destructive and contact-free testing method
• Thermography can inspect electrical objects in dark areas

• Infrared inspection can immediately detect an overheated wire in a mesh of wires and terminals, which is impossible to see with the naked eye
• Infrared electrical inspections can minimize injury, liability, damage, catastrophic failures, and downtime for the organization
• An effective preventative maintenance strategy must include an infrared scan

• Higher energy consumption and high current load
• Penalties incurred for exceeding tariffs
• Production quality and quantity losses
• Financial losses due to stoppage
• Increase in reactive power consumption

• Reduced life cycle of equipment
• Additional investment for oversizing of equipment
• Energy wastage
• Increased maintenance and service cost
• Over voltage / under voltage / sag / swell / electrical noise / surges / spikes

• Improve power factor and system efficiency
• Avoid breakdowns and production interruptions
• Avoid excess energy consumption
• Remove harmonics, surges, and transients from the electrical network
• Avoid voltage/frequency fluctuations and PLC hang-ups
• Prevent transformer overheating, capacitor bursts, and tripping

• Save on energy bills due to reduced losses and KVA demands
• Ensure accurate measurements by installed meters
• Achieve better production rate and quality with fewer interruptions
• Enhance lifecycle of electrical networks and components
• Maximize plant distribution capacity

• Facility walk-through
• Load study
• Inter-harmonics
• Harmonics (Vthd and Ithd)
• Earth-pit resistance test (at mains transformer)
• Reactive power analysis
• Power parameters

• Line disturbances (transients, sags, swells at main transformer)
• Captive power assessment
• Load distribution
• Thermography
• Problem investigation
• PQA report
• Inferences and recommendation

• Reactive Power
• Harmonic distortions
• Transients

• Fast changing loads
• Voltage stabilization

• High electricity bills
• Unbalanced systems

• Tuned/Detuned, Active/Passive Harmonic Filter
• Power Factor Correcting Capacitor (APFC- Detuned and non Detuned)
• TVSS ( Transient voltage surge Suppressor )
• Power quality Monitoring Meter

• UPS/Inverters
• Peak Demand Management
• Power Factor Controller

Power network system measurements and data collection are typically taken at various essential locations throughout the facility to enable the accurate modelling of harmonic sources. This is required since the theoretical addition of harmonics from a number of sources will not be directly additive and could be considerably less. In addition to harmonic measurements, voltage and load measurements are also taken.

• a) System Voltage RMS
• b) System Current RMS
• c) Active and Reactive Power
• d) Power Factor (Instantaneous).

• e) Data collection from site.
• f) Harmonic measurements along with specific harmonic filtering at normal operating conditions.
• g) Voltage Improvement and stability study.
• h) Three phase balancing study.
• i) Surge and Transient Protection, study.
• j) KVA Capacity Release
• k) Broadband Harmonic reduction requirement if any.

A harmonic analysis involves the use of computer programs to identify and predict potential harmonic problems and mitigation techniques. The study will also look at different operating points as well as system. Changes that might occur in the future.

The study will be conducted to record the transient s and surges of 1KV – 6KV magnitude.

The study will be conducted to record the short term dips and swells along with magnitude and duration.

The study will be conducted to calculate the desired reactive power at distribution andload end. This will give precise reactive power and maintain unity power factor at PCC and reduce losses and resonance in network.

The study will be conducted to calculate the desired captive power. Synchronise the captive power to cater to peak demands and reduce utility surchargeand fuel consumption.

A load flow analysis is conducted to predict power flow magnitudes, power factor, voltage levels, and losses in branches of the system based on the specified operating conditions. The job for the Electrical system Power Quality study and analysis shall be carried out as indicated below:-

Online measurement of the parameters mentioned above at the Plants Input Mains and subsequent important feeders by power quality analyzers KRYCARD ALM 30/35 to identify the quantum of the disturbances along with the thres hold parameters