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Additionally, synchronous condensers are more tolerant of power fluctuations and severe drops in voltage. [3] However, synchronous machines have higher energy losses than static capacitor banks. [1] Most synchronous condensers connected to electrical grids are rated between 20 MVAR (megavar) and 200 MVAR and many are hydrogen cooled.
In Electrical Engineering , a static synchronous compensator (STATCOM) is a shunt-connected, reactive compensation device used on transmission networks. It uses power electronics to form a voltage-source converter that can act as either a source or sink of reactive AC power to an electricity network.
When line commutated converters are used, the converter station will require between 40% and 60% of its power rating as reactive power. This can be provided by banks of switched capacitors or by synchronous condensers, or if a suitable power generating station is located close to the static inverter plant, the generators in the power station ...
A condenser between the stage and mirror of a vintage microscope. Condensers are located above the light source and under the sample in an upright microscope, and above the stage and below the light source in an inverted microscope. They act to gather light from the microscope's light source and concentrate it into a cone of light that ...
Small synchronous motors are used in timing applications such as in synchronous clocks, timers in appliances, tape recorders and precision servomechanisms in which the motor must operate at a precise speed; accuracy depends on the power line frequency, which is carefully controlled in large interconnected grid systems.
One of the primary functions of the SSSC is to improve power flow control. By adjusting the line impedance, the SSSC can regulate the amount of power flowing through a specific transmission line. This is particularly useful for balancing power flows between different regions of a power system or for optimizing the utilization of existing ...
The minimum real power requirement means that the left-side of a D-curve is detached from the vertical axis. Although some generators are designed to be able to operate at zero load (as synchronous condensers), operation at real power levels between zero and the minimum is not possible even with these designs. [4]
Prior to the invention of the SVC, power factor compensation was the preserve of large rotating machines such as synchronous condensers or switched capacitor banks. [5] The SVC is an automated impedance matching device, designed to bring the system closer to unity power factor. SVCs are used in two main situations: