The Design of RBMP Technique to Limit The Fault Current and Voltage Dip in Medium Voltage Electrical System Application

The expansion of the factory’s production line might require a new installation of electrical machines. To integrate the new system into the existing network, there are several options that might be chosen such as direct cable connection, through an impedance, or by using a fault current limiter (FCL). This paper discusses the concept of Remote Bus Marching Practice (RBMP) which is a method to integrate a far location substation to the main system. The comparison of integration options by using the direct connection, impedance, and RBMP is performed in a petrochemical company in Indonesia. The factors being compared are the capital investment and the transient condition. The result shows that RBMP could be an adequate solution in a particular circumstance to integrate a new system in medium voltage power system while reducing the impact of voltage dip during a fault condition and in a competitive capital cost.