Reactive power compensation capacitor test report

What type of capacitor is used for reactive power compensation?

In the past, rotating synchronous condensers and fixed or mechanically switched inductors or capacitors have been used for reactive power compensation. Today, static Var generators employ thyristor-switched capacitors and thyristor-controlled reactors to provide reactive power compensation.

What are the different types of reactive power compensation?

There are two main types of reactive power compensation: a) individual and b) centralized. These two modalities are schematized in Fig. 5 (a) and (b), respectively. There is a third modality that can be considered an intermediate case: c) the compensation in group. These three modalities can coexist in the same installation. Figure 5.

Can synchronous compensators compensate reactive power?

Instead of using capacitor banks, there is a different alternative to compensate the reactive power that is based on the use of synchronous compensators. These are synchronous machines that, operating with null active power, can behave either as variable capacitors or coils, by simply changing their excitation current .

Which technology is used in reactive power compensation?

This paper reviews different technology used in reactive power compensation such as synchronous condenser, static VAR compensator, capacitor bank, series compensator and shunt reactor, comparison between them, source of reactive power and different optimization techniques.

How does reactive power affect the capacity of a generator?

Therefore, taking into consideration the basic Equation 1, we can conclude that, for a certain apparent power S, the higher the reactive power (Q) to be generated (in order to the supplied to the customers), the lower the active power (P) that the generator can produce. In other words, the generation of Q limits the capacity of generating P.

What is static VAR Compensator (SVC)?

The static VAR compensator (SVC) is the shunt compensation method which is used to compensate the reactive power. The SVC uses Thyristor Controlled Reactor (TCR) /Thyristor Switched Capacitor (TSC) control method by the help of which reactive power is either absorbed or generated. To control the SVC a triggering alpha is used.