Power Quality Analysis
POWER QUALITY ANALYSIS | LOAD STUDIES | CONSUMPTION DATA RECORDING
Power quality (PQ) has found a renewed interest due to changing power generation modes and consumption dynamics. The unprecedented growth in renewable sources at different voltage levels has increased the amount of PQ-related issues. Consumption patterns have also seen a wide transformation due to unsynchronized loads added at multiple entry points of the grid and voltage levels.
Power Quality in the utility space refers to the quality of the voltage delivered to the consumer; a series of prescribed regulations for the magnitude, phase, and frequency determine this quality of service. However, by definition, it denotes both voltage and current. While the voltage is easily controlled by the generation side, the current is governed largely by consumer usage. The concept and implications of PQ issues are rather widespread depending on the end users.
The economic impact of bad PQ has been studied and surveyed extensively in the last few years; its effects are estimated to be in the region of billions of dollars worldwide. All these studies conclude that monitoring the quality of power has a direct impact on the economic results of many business sectors. Even though it is clear how bad PQ negatively affects the economics of business, monitoring it efficiently and effectively at scale is not an easy task. Monitoring PQ in a facility involves having highly trained personnel and expensive equipment installed on multiple points along the electric system for long or indefinite periods of time.

Energy Surveys
Typically comprise a one-week recording to log Watts, Demand, VAs, VARS and Power Factor required for energy efficiency analysis, transfer or expansion of power systems, etc.
Troubleshooting power issues
Typically a one-week or longer survey, depending on frequency of fault being investigated. The Reliable Power Recorder is considered by Regional Electricity Companies to be the best system for investigating problems where it is not known what is causing the problem, i.e. whether it is voltage, or current or harmonics etc.


One day on-site investigations
Investigation of problems requiring several recordings at one or different locations, e.g. investigating trips on motor starts, standby generator/UPS performance tests etc.
Harmonic and Power Quality Surveys
Surveys to demonstrate compliance to Regional Electricity Company standards, G5/4 and BS EN 50160.
Often carried out as pre and post installation of non-linear or high power systems, e.g. large pumps, drives. Also to determine whether power problems are being generated internally or being imported from the supplier.

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