Variable Shunt Reactors Reactive Power Compensation

The flow of reactive power in electrical networks is a conse- quence of varying reactive power changing, the reactive current drawn from the system also changes. When reactive current flows, a voltage drop occurs and the system voltage will decrease with respect to the no-load value. Furthermore, the flow of reactive current will cause additional losses in the On systems, where the varying reactive power requirements and/or generation cannot be tolerated, it is common practice pensation means in order to power system within defined In networks, where consumption predictable and stable, fixed...

If such a very fast and dynamic continuously Variable Shunt required function of reactive power compensation over a wide range of service condi- tions at minimum investment • maintain steady-state voltage limit conditions power flow within predefined limits power factor As part of the overall reactive compensation scheme, a conti- nuously VSR may provide reac- tive power compensation and smooth steady-state voltage control in response to the daily load cycle and possible chan- thermore, the flexibility of VSRs offers the ability to adapt to sy- stem topology changes or new Typical network conditions...

With more than 3 decades of successful field experience, Trench is the recognized world leader in designing and manu- facturing of power reactors for all utility and industrial applica- tions. Our unique design ap- proach for VSRs is the appro- priate answer for continuous adjustable reactive power com- pensation within minutes/ hour time scale. it's power output via variation magnetic circuit. This is reali- plunger cores. Depending on the position of the twin cores, side the winding is provided. The magnetic circuit consists essentially of cylindrical shaped twin plunger cores and several C-shaped...

Design Features oil-immersed coil with • continuously adjustable, via a motor drive unit in on-load condition • common oil-filled steel tank with detachable conservator • with flanged-on radiators • mobile underbase with bi- directional rollers or skid base tage level and/or creepage distance requirements - optional: touch-free design via plug-in cable termination system • motor drive unit, 230/400 V buttons for coil adjustment, with hand - crank for emergency operation anti-condensation heater mechanical position indicator remote indication • current transformers, • contact thermometer with...

Technical Characteristics Fig. 4 Variable Shunt Reactor (VSR), 47 kV - 7 Mvar

Automatic Controller In order to allow for automatic control of the VSR, Trench is also able to provide an automatic control device (based on our earth fault compensation con- within the given limits of reac- tive power demand - this is par- ticular convenient for unmanned or fully automated stations. It further allows remote opera- gital inputs or via a substation automation and control system. The automatic controller further- more provides data logging and comprehensive recording func-

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