Management of Smart Switchboard Placement to Enhance Distribution System Reliability

Abstract

One way of handling short-time short-circuits without causing equipment failure is the management of the reclose function integrated into smart switchboard which is described in this article. Due to the cost of the application, the optimal placement of such equipment must be well-planned. During the planning of the placement optimization of a low-voltage electricity network quality, the increase of the consumer supply security must be considered along with the best economic utilization. The research presented in this article aims to introduce a new special decision support methodology calculated with these variables. The management of smart switchboard (SSB) tool installation into low voltage (LV) network was investigated. The selection of the placement nodes is based on the complex investigation of the network characteristics. Investigation is performed by empiric analysis. This method can support the power companies to make the optimal decision. The presented new device can have outstanding importance for the electric industry and for further research as no testing results of such investigations have been published yet. 101 Narimani et al. [20] provides a framework for the allocation of a central electricity storage facility 102 (EES) in discrete communities, which is created as segmentation along rural energy supplies where 103 the installation of cross connectors is not economical or even feasible. Modeling of the impact of 104 automation failure on distribution system reliability is presented in paper [21]. Reinders [22] focuses 105 on the reliability of electricity supply at three different locations in Indonesia by comparing reported 106 energy reliability indices (SAIFI and SAIDI). A common FLISR approach is to use error indicator (FI) 107 signals with distribution network states [23].108 2. The Smart Switchboard 109 The smart switchboard (SSB) developed by AD&TE is a low voltage distribution switchboard 110 which, under the described maintenance and operational circumstances during its entire life cycle 111 and without the partial or total change of the equipment, interrupts the overcurrent or the short-112 circuit current up to the value defined by the manufacturer, compliant to the applicable standards.113 The SSB detects the overcurrent with the combined usage of the local measure-and evaluation system 114 [24]. The operation happens according to the predefined current-time curve. The equipment is 115 remote, thus the existence of tension (yes/no) at each measuring point, the effective and inefficient 116 current components, the tension and the calculated performance data based on tension-with the 117 application of the security protocols in the related standards-is forwarded to a centre by using 118 wireless communication. The SSB can be operated remotely, accordingly, it is suitable for performing 119 remote switching operations. In order to the secure feasibility of the planned tasks the remote 120 operation can be blocked in-site and has visible breakdown point and earthing possibility. The 121 eq...