Either to supply electrical power to a facility in island mode or paralleled together with the utility in an infinite bus topology. Standby generators are frequently paralleled together to protect critical applications such as hospitals or data centres in the event of a. Power flow control reactors, which are series-connected to transmission lines, regulate the current into two or more parallel circuits. So it will be M-T-M-T-M-T-M-T (back to the first M), with each bus served by a substation transformer running the Delta Var 2 paralleling scheme. The loading on each bus is nearly identical. Typically. In large systems with many generators connected in parallel, it may be necessary to use a series reactor to prevent excessively large current flow during a short circuit; this protects transmission line conductors and switching apparatus from damage due to high currents and forces produced during a. A recent study found that there are roughly 30,000 arc flash incidents in the United States each year, many of which are powerful enough to cause significant injury to workers and costly damage to equipment2. The adoption of busbar power distribution systems on a global scale has accelerated in the. SYNCHROTACT® 5 is the fifth generation of synchronizing equipment produced by ABB Switzerland Ltd in Switzerland. They are designed for fully automatic. English Original Instructions 6-2014 A040W370 (Issue 4) Table of Contents 1.