POWER QUALITY ANALYSER

POWER QUALITY ANALYSer

Power Quality (PQ) refers to the reliable delivery of electrical energy in a form that enables electrical equipment to operate properly. When dips and swells, spikes, surges, momentary outages, sags or other disturbances occur – computers and other electrically powered equipment may malfunction, fail prematurely or shut down unexpectedly

PQ improvement enables energy to be used more efficiently, optimizes the effectiveness of electrically-driven machines, equipment and systems, minimizes their wear-and-tear and increases their life cycle. Clean, uninterrupted power yields ecological and economic benefits. Higher output and greater reliability, less consumption

The quality of electrical power may be described as a set of values of parameters, such as:

	Continuity of service
	Variation in voltage & frequency
	Transient voltages and currents
	Harmonic content in the waveforms

	Extends the life cycle
	Reduces power consumption on
	Produces sustained revenue increase
	Protects power grids
	Saves resources
	Optimizes production
	Produces sustained cost reduction

Facility	Problem	Solution
Telecommunication Center	Emergency generators produced sags and surges	Installed filters on generator control circuits
School	Mild shocks and flickering lights	Revised grounding connection
Hospital	Repeated failure of critical care monitors	Installed transient voltage suppressors
Factory	Transfer switch mis-operation	Installed power factor correction Equipment
High Rise Building	Sporadic tripping of large circuit breaker	Replaced breaker trip unit with one less sensitive to harmonic current
Bank	Overheating and fuse blowing of PF correction capacitors, over heating of neutral conductors of supply transformers. Tripping of over current protection, mal-operations of relays	Installed passive and active harmonic filter
Data Center	Servers Failing	Overload neutral provided high neutral to ground voltage, possible cause for server power supply failure. Installed dedicated circuit for servers.