Polish translation: napędy z przetwornicami częstotliwości
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14:36 Dec 9, 2010
English to Polish translations [PRO] Tech/Engineering - Engineering: Industrial
English term or phrase:variable frequency drives
Reusing Oven Exhaust Heat
Branson notes that energy reutilization is also getting increasing
attention in the food industry. Oven exhausts are often a good
source of thermal energy that can be used internally for oven heat,
or can be used in driers or other food processing equipment.
Today’s gas-fi red ovens usually feature electronic controls.
These are an important improvement from an effi ciency standpoint
because they prevent temperature over-shoot, and offer
more precise control. The oven can be programmed to shift from
full operation to standby status automatically. These controls also
permit variable frequency drives to slow oven exhaust blowers
at different stages in the heating cycle when it won’t affect the
process. This reduces the oven’s electric demand and energy usage.
A variable-frequency drive controls the operating speed of an AC motor by controlling the frequency and voltage of the power supplied to the motor. An inverter provides the controlled power. In most cases, the variable-frequency drive includes a rectifier so that DC power for the inverter can be provided from main AC power. Since an inverter is the key component, variable-frequency drives are sometimes called inverter drives or just inverters. http://en.wikipedia.org/wiki/Inverter_(electrical)#Variable-...
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falowniki o zmiennej częstotliwości
Explanation: Jako ekonomista jestem "noga" w technice, ale mój syn robił doktorat na Politechnice Warszawskiej i jest biegły w tej problematyce.