The use of rotating synchronous condensers was common through the 1950s.

This unit was also operated in synchronous condenser mode for reactive power support.

Synchronous condensers are also useful for supporting voltage levels.

This is referred to as a synchronous condenser.

They are referred to as synchronous condensers.

Unlike a capacitor bank, the amount of reactive power from a synchronous condenser can be continuously adjusted.

They are, in general, cheaper, higher-capacity, faster and more reliable than dynamic compensation schemes such as synchronous condensers.

A synchronous condenser provides step-less automatic power factor correction with the ability to produce up to 150% additional vars.

Synchronous condensers may also be referred to as Dynamic Power Factor Correction systems.

Because of the rotating inertia of the synchronous condenser, it can provide limited voltage support during very short power drops .

Large installations of synchronous condensers are sometimes used in association with high-voltage direct current converter stations to supply reactive power to the alternating current grid.

Unlike a synchronous condenser which is a rotating electrical machine, a static VAR compensator has no significant moving parts (other than internal switchgear).

The system produces no switching transients and is not affected by system electrical harmonics (some harmonics can even be absorbed by synchronous condensers).

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.

These systems are able to compensate sudden changes of power factor much more rapidly than contactor-switched capacitor banks, and being solid-state require less maintenance than synchronous condensers.

Reactive power from a capacitor bank decreases when grid voltage decreases, while a synchronous condenser can increase reactive current as voltage decreases.

Most synchronous condensers connected to electrical grids are rated between 20 Mvar(Megavars) and 200 Mvar and many are hydrogen cooled.

Although reactive power has primarily been supplied along with real power by the steam turbines and motor generators of the system, the PRR briefly used two synchronous condensers.

Removal of the existing converter transformers connecting the Pole 1 mercury arc valves and two of the synchronous condensers to the 110 kV bus at Haywards.

On electric power systems, synchronous condensers can be used to control the voltage on long transmission lines, especially for lines with a relatively high ratio of inductive reactance to resistance.

Unit no. 1 was decommissioned in 1944, but its alternator was reconfigured for use as a synchronous condenser, for correction of power factor in the 25 cycle per second grid.

Some of the generators were operated as synchronous condensers to improve power quality in Toronto and the electrical control room and switchyard continued to operate until 1995, with a staff of about 10.

A synchronous condenser operates on the same principle, but there is no "prime mover" power input; however, the "flywheel effect" means that it can send or receive power over short periods of time.

However, instead of using synchronous condensers for voltage control and reactive power supply to the thyristors, Madawaska uses switched filter and shunt reactor banks connected to the high voltage busses on each side.

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.