basics on power quality

Power Quality – Basic Guide

What is Power Quality??

• Power Quality indicates how effective is the quality of supply to support installation and reliable operation of the electrical equipments

• Electrical Disturbances may originate from an user’s premises or the power company

• Voltage, current or frequency can be affected by these electrical disturbance

http://www.fluke.com/fluke/inen/products/Power-Quality.htm



Hidden Power Quality Problems• Voltage Dips and swells – Caused by large loads starting up or shutting down

Damage To: Computers, Electronic Controls and Lamps

• Harmonic Distortion – Alteration in current frequency cycles caused by non linear loadsDamage To : Motors, Transformers, Fuses

• Voltage Unbalance – Differences in Phase Voltages or current of more than permissible limitsDamage to : Motors and Transformers

• Flicker – Cyclic Voltage DipsDamage to : Employee Productivity

• Transients : sharp voltage increases caused by equipment switching on and offDamage to : Circuit Boards, Electrical Insulation




Why Monitor it?

• Downtime• Data Loss• Products damages during production• Excess Energy Consumption• Additional expense in maintenance, equipment repairs and

equipment replacement




Solving these issues

• Can be solved by use of clamp meters for measuring power quality and power that allows troubleshooting first level directly into the equipment

• Some tools that can be used are:Single phase power Quality AnalysersThree phase power quality AnalysersLong term power Quality Recorders




Some Power Quality Analyzers from Fluke




Why Fluke?

• Provides comprehensive power quality Analysis

• Wide range to suit different level of power quality monitoring

• Suits applications like Energy Audit, Energy loss assessment, Harmonic studies

• Meets the new IEC standards applicable to Class A power quality

• Includes single as well as three phase instruments

• Provided with SD Card memory, software for long term recording




• Company Name : Fluke Corporation - India

• Website: http://www.fluke.com/fluke/inen/home/default.htm

• Address: Division of DHR Holding India Pvt. Ltd. 10th Floor, Sigma Hiranandani Business Park, Powai

Mumbai, Maharashtra 400076

• Contact Number: 1 800 209 9110

http://www.fluke.com/fluke/inen/home/default.htm

http://www.fluke.com/fluke/inen/home/default.htm

Thank You