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Types of Power Disturbances, their Causes and 7 Protection by Powermatic

Power disturbances can have many effects on equipment. But it is a common misconception that most power disturbances are generated outside of the facility. In this view, the electric utility is guilty of providing “dirty power” that the facility must cope with.

Studies conducted by the Electric Power Research Institute (EPRI) show that up to 80% of small business’ power quality problems are caused by disturbances created inside of a facility or business.

The primary cause of voltage changes is the time variability of the reactive power component of fluctuating loads. Such loads include arc furnaces, rolling mill drives, and main winders all of which are loads with a high rate of change of power with respect to the short-circuit capacity at the point of common coupling.

Power protection devices at home and offices like circuit breakers and fuses are generally designed to protect against excess current but not excess voltage.

Powermatic, the new concept in power protection connects load only after a comprehensive monitoring of electrical supply and when the supply is within the specified parameters. It continues monitoring and disconnects when there are any disturbances, thus it avoids expensive damage and breakdown to connected equipment.

Powermatic, as a microprocessor embedded solution, provides the smartest comprehensive detection and reaction response to more than one power disturbances at low cost.

Powermatic offers 7 types of protection

Over Voltage

Reason: Load switching, System voltage regulation

Causing: Stress or damage to electronic components and premature equipment failure

Under Voltage

Reason: Over loaded power distribution or start-up of large motors

Causing: Equipment malfunction, computer crashes, compressor change

Over Frequency

Reason: Improper speed of Electricity Generator

Causing: The equipment to not operate within their specifications

Under Frequency

Reason: Extreme loading condition on Electricity Generator

Causing: Poor efficiency and short life span of equipment, may also harm motors

Interruption

Reason: Very short accidental power loss

Causing: Disk drive crashes, refrigerators can be damaged by affecting their compressors

Loose Connection

Reason: Not firmly made connections or broken wires

Causing: Burning due to temperature rise of connections and may cause fire

Power Surges

Reason: Lightning, non-linear switching loads

Causing: Damage to sensitive electronic components, insulation and windings

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