Compact coils respond faster to fault currents

Article Abstract:

A new generation of air circuit breakers can be made 25 per cent smaller than their predecessors with improved performance, because of their ability to detect sudden current rises using air-cored sensing coils and electronics instead of traditional current transformers. Applications include measuring the starting transients of electric motors, fault testing uninterruptible power supplies, and tracing earth faults in large and complicated conductor systems.

Switchgear and Switchboard Apparatus Manufacturing, Switchgear and switchboard apparatus, Power Circuit Breakers, Uninterruptible Power Supplies, Electric circuit-breakers, Circuit breakers, Uninterruptible power supply, UPS

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Inverter swings to lower harmonics

Article Abstract:

A range of power inverters has a human machine interface closely modelled on a popular range of mobile phones and uses swing chokes to cut harmonics fed back into the main supply. The inverter modeled on a mobile phone interface concept comes in two models, standard and HVAC with both being controlled by eight buttons.

Power Converters & Amplifiers, Electrical industrial apparatus, not elsewhere classified, Power Frequency Converters, Technology application, Power converters, Harmonics (Electric waves)

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Lungs and leaves show way to more power

Article Abstract:

Gas channels in the plates of fuel cells, structured like passages in animal lungs and plant leaves enhance the output of the fuel cell. Morgan Fuel Cell has used this approach in manufacturing the Biometric plates.

Science & research, PETROLEUM AND COAL PRODUCTS, Energy, Utilities, Fuel Cells & Thermic Generators, Petroleum & Energy Products, Petroleum and Coal Products Manufacturing, Research, Analysis, Power resources, Fuel cells, Plant life cycles

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