The SmartValve™ leverages proven Guardian™ technology and builds upon the success of its predecessors. The SmartValve can increase or decrease the reactance of a line, thereby pushing power away from or pulling more power towards the circuit on which it is installed.
A modular, Static Synchronous Series Compensator (SSSC), the SmartValve injects a leading or lagging voltage in quadrature with the line current, providing the functionality of a series capacitor or series reactor respectively. The SmartValve does not have the negative characteristics of these passive devices, such as the risk of sub‐synchronous resonance (SSR) with series capacitors and the constant VAR consumption of series reactors.
SmartValve solutions are connected in series with a utility facility, operate at line potential and have no connection to ground. This technology is particularly effective in highly meshed electric grids where spare system capacity can be utilized to resolve overload situations. SmartValves can be installed on dedicated transmission towers within the transmission right-of-way or in banks inside or nearby existing substations. Due to their modularity and high kVAr output in compact and lightweight enclosures, they are particularly well-suited for Mobile applications. SmartValve technology is applied to all three phases, with the number of devices per phase determined by the amount of compensation required.
Bypass functionality, which provides protection and control of the SmartValve, is either integrated into the SmartValve or installed as a discrete device, called the SmartBypass, in parallel with one or more SmartValves. The SmartValve 1-900, SmartValve 1-1800 and SmartValve 2-3600 models are deployed with the SmartBypass. SmartValve 5-1800i and 10-3600i models have an integrated bypass.
Regardless of whether the bypass functionality is integrated or discrete, it builds upon the proven success of the bypass systems used in Guardian products. It enables operators to manually bypass a SmartValve or switch them in series with the transmission line.
Explore the tabs below for product-specific information and details on how this technology is deployed, controlled and operated.