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Founded by Ralph C. Liebert (1918-1984) as Capitol Refrigeration Industries in 1946, Liebert Corporation was formed in 1965 as the industry's first [citation needed] designer and manufacturer of computer room air conditioning (CRAC) systems. Targeted to the mainframe computer data-processing market, Liebert CRAC systems were the first totally ...
Most recently, certain assets and centrifugal chiller technology from BiXin Energy, a manufacturer of chillers, heat pumps, heat-recovery solutions, and air-handling units, were acquired in December 2024. [20] In 2023, Vertiv's share price increased 252%, outperforming all companies in the S&P 500 index. [21]
A capacitor is a passive device on a circuit board that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. This is a list of known capacitor manufacturers, their headquarters country of origin, and year founded. The oldest capacitor companies were founded ...
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Motor capacitors are used with single-phase electric motors [3]: 11 that are in turn used to drive air conditioners, hot tub/jacuzzi spa pumps, powered gates, large fans or forced-air heat furnaces for example. [1] A "dual run capacitor" is used in some air conditioner compressor units, to boost both the fan and compressor motors. [1]
Operating the capacitor with the wrong polarity, or with AC voltage, leads to a short circuit which can destroy the component. The exception is the bipolar or non-polar aluminum electrolytic capacitor, which has a back-to-back configuration of two anodes in a single case, and which can be safely used in AC applications.
The capacitors act as a local reserve for the DC power source, and bypass AC currents from the power supply. This is used in car audio applications, when a stiffening capacitor compensates for the inductance and resistance of the leads to the lead-acid car battery.
Polyester film capacitors, commonly used for coupling between two circuits. In analog circuits, a coupling capacitor is used to connect two circuits such that only the AC signal from the first circuit can pass through to the next while DC is blocked. This technique helps to isolate the DC bias settings of the two coupled circuits.