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A traditional shunt reactor has a fixed rating and is either connected to the power line all the time or switched in and out depending on the load. Recently [1] variable shunt reactors (VSRs) have been developed and introduced on the market. The rating of a VSR can be changed in steps: the maximum regulation range depends on the capability of ...
Shunt reactors are used in power systems to counteract the effect of the line parasitic capacitance, thereby stabilizing the system voltage within acceptable limits. [1] The utility of shunt reactors for voltage control on lightly-loaded transmission lines was examined in a 1926 paper presented at the AIEE by Edith Clarke . [ 2 ]
A shunt reactor is typically connected to an end of a long transmission line or a weak system to prevent overvoltage under light load (Ferranti effect); [10] passive sources of reactive power (e. g., shunt or series capacitors). shunt capacitors are used in power systems since the 1910s and are popular due to low cost and relative ease of ...
Typically, an SVC comprises one or more banks of fixed or switched shunt capacitors or reactors, of which at least one bank is switched by thyristors. Elements which may be used to make an SVC typically include: Thyristor-controlled reactor (TCR), where the reactor may be air- or iron-cored; Thyristor-switched capacitor (TSC) Harmonic filter(s)
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. It is a member of the FACTS family of devices.
Another way to limit motor starting current is a series reactor. If an air core is used for the series reactor then a very efficient and reliable soft starter can be designed which is suitable for all types of 3 phase induction motor [ synchronous / asynchronous ] ranging from 25 kW 415 V to 30 MW 11 kV.
The Hawthorne effect is a type of human behavior reactivity in which individuals modify an aspect of their behavior in response to their awareness of being observed. [1] [2] The effect was discovered in the context of research conducted at the Hawthorne Western Electric plant; however, some scholars think the descriptions are fictitious.
The cognitive-affective personality system or cognitive-affective processing system (CAPS) is a contribution to the psychology of personality proposed by Walter Mischel and Yuichi Shoda in 1995. According to the cognitive-affective model, behavior is best predicted from a comprehensive understanding of the person, the situation, and the ...