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The different ceramic materials used for ceramic capacitors, paraelectric or ferroelectric ceramics, influences the electrical characteristics of the capacitors. Using mixtures of paraelectric substances based on titanium dioxide results in very stable and linear behavior of the capacitance value within a specified temperature range and low losses at high frequencies.
The temperature of the capacitor, which is the net difference between heat produced and heat dissipated, must not exceed the capacitor's maximum specified temperature. The ripple current is specified as an effective (RMS) value at 100 or 120 Hz or at 10 kHz at upper category temperature.
The capacitor was originally known as the condenser, [1] a term still encountered in a few compound names, such as the condenser microphone. It is a passive electronic component with two terminals .
In a capacitor microphone (commonly known as a condenser microphone), the diaphragm acts as one plate of a capacitor, and vibrations produce changes in the distance between the diaphragm and a fixed plate, changing the voltage maintained across the capacitor plates.
For some capacitor types therefore the IEC standard specify a "temperature derated voltage" for a higher temperature, the "category voltage U C". The category voltage is the maximum DC voltage or peak pulse voltage that may be applied continuously to a capacitor at any temperature within the category temperature range T C. The relation between ...
A capacitance meter is a piece of electronic test equipment used to measure capacitance, [1] mainly of discrete capacitors. Depending on the sophistication of the meter, it may display the capacitance only, or it may also measure a number of other parameters such as leakage, equivalent series resistance (ESR), and inductance.
Synchronous condenser installation at Templestowe substation, Melbourne, Victoria, Australia. Built by ASEA in 1966, the unit is hydrogen-cooled and capable of three-phase power at 125 MVA . In electrical engineering , a synchronous condenser (sometimes called a syncon , synchronous capacitor or synchronous compensator ) is a DC-excited ...
The temperature of the capacitor, which is the net balance between heat produced and distributed, must not exceed the capacitor's maximum specified temperature. The ripple current for polymer e-caps is specified as a maximum effective (RMS) value at 100 kHz at upper rated temperature.