Development of human machine interface (HMI) with customized scada system for low voltage disrtribution automation system

This paper presents the development of customized distribution automation system (DAS) for secure fault isolation at the low voltage (LV) down stream, 415/240V by using the Tenaga Nasional Berhad (TNB) distribution system. It is the first DAS research work done on customer side substation for operating and controlling between the consumer side system and the substation in an automated manner. Most of the work is focused on developing very secure fault isolation whereby the fault is detected, identified, isolated and remedied in few seconds. Supervisory Control and Data Acquisition (SCADA) techniques has been utilized to build Human Machine Interface (HMI) that provides a graphical operator interface functions to monitor and control the system. Microprocessor based Remote Monitoring Devices have been used for customized software to be downloaded to the hardware. Power Line Carrier (PLC) has been used as communication media between the consumer and the substation. As result, complete DAS fault isolation system has been developed for cost reduction, maintenance time saving and less human intervention during faults

Development of communication protocolbased on low voltage distribution automation system

This paper presents the development of a customer side distribution automation system (DAS) for operating and controlling low voltage (LV) down stream of 415/240V by using the Tenaga Nasional Berhad (TNB) distribution system. Supervisory Control and Data Acquisition (SCADA) based remote Terminal Unit (RTU) along power line communication PLC) system are used for DAS development that practically imulates the down stream distribution system functions in an automated manner. It is the first DAS research work done on customer side substation for operating and controlling between the consumer side system and the substation. Most of the work is focused on building Human Machine Interface that provides a graphical operator interface function to monitor the system. The Human Machine Interface of SCADA system is developed using customized software and an RTU microprocessor and its software implements

Customized Fault Management System for Low Voltage (LV) Distribution Automation System

1. Introduction Supply disruption such as overloading will cause interruptions of electricity supply to customers. The technicians have to manually locate the fault point and this tedious work may last for extended periods of time. The other reasons are the lack of use of efficient tools for operational planning and advanced methodology for quick detection of fault, isolation of the faulty section and service restoration. Currently, fault detection, isolation and service restoration takes a long time causing the interruption of supply for a longer duration

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