phase advancers wikipedia
#1

What are the advantages and disadvantages of phase advancers?
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#2

A Phase power source, connected to certain points of attachment in a power grid or directly to the load terminals; is used to compensate for the phase shift between voltage and current. The phase advances allow to adjust or to maintain the voltage in the network, to diminish the loss of power and to increase the capacity of load of the electrical systems.

Phase forwarders can be adjustable or non-adjustable. Adjustable phase advances allow you to change the capacitive or inductive characteristics of reactive power in a network, ensuring that the specified performance is maintained even under changing conditions. Adjustable phase advances can be rotating machines or static devices. Synchronous compensators can be used as adjustable rotary phase controllers; Capacitors are used as adjustable static phase regulators. Adjustable current rectifiers, adjustable electric reactors or transformers can function as the control elements in either type. Non-adjustable phase advances are usually of the static capacitor type.

In many cases, phase advances also function as load balancing devices. They are also used as filters for harmonic oscillations in networks with predominantly non-sinusoidal loads. Static phase feeders are used in rectifier conversion devices that have forced (activated) switching. The choice of phase promoter type depends on the engineering and economic factors, including the nature of network loads, the speed and range of load changes and network operating conditions.
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