An efficient communication interface and protocol for motor protection relays
Published Article === A company in South Africa is a three-phase induction motor protection relay manufacturer. The function of the protection relay is to capture running data, to provide protection against possible damage, to control an electric motor and to communicate this data to the System Cont...
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Journal for New Generation Sciences, Vol 7, Issue 1: Central University of Technology, Free State, Bloemfontein
2015
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Online Access: | http://hdl.handle.net/11462/524 |
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ndltd-netd.ac.za-oai-union.ndltd.org-cut-oai-ir.cut.ac.za-11462-5242016-03-16T03:59:04Z An efficient communication interface and protocol for motor protection relays Mouton, A.J.J. Smith, C.J. Smith, G.E.; Central University of Technology, Free State, Bloemfontein Motor protection relays Remote GSM node controller GSM modem Short message service (SMS) Modbus protocol application Published Article A company in South Africa is a three-phase induction motor protection relay manufacturer. The function of the protection relay is to capture running data, to provide protection against possible damage, to control an electric motor and to communicate this data to the System Control and Data Acquisition (SCADA) system in a control room. In the case of remote sites e.g. a pump station, the protection relays are used as standalone units. The protection relays are equipped with communication facilities to be used in an instrumentation environment. If a trip occurs or settings need to be changed a technician has to visit the remote site and address the problem. The ideal cost and time effective solution is to perform these tasks remotely via a reliable wireless network. A study was conducted to ascertain the viability of using the standard GSM cellular networks in South Africa to effectively control electric motors and to communicate with the Motor Protection Relays (MPRs) controlling the electric motors in order to determine the status of a motor, settings of the motor, trips that occurred and time of occurrence. It was shown that a node controller could be used to store all the data from various electric motors at a single location. It was also shown that the data from the different electric motors could be analysed at the node controller and that communication can then be initiated from the controller to a responsible person via the GSM network. It was further illustrated that, by making use of the GSM networks in South Africa together with the short message service (SMS), communication and control can be effectively established. SMSs proved to be a reliable means of communication between cellular phones, an embedded network and MPRs. It was shown that software protocols, although slower in communication speed, proved to be reliable and effective for the purpose of transferring information between the node controller and the motor protection relays connected to the electric motors. 2015-09-23T12:20:21Z 2015-09-23T12:20:21Z 2009 2009 Article 16844998 http://hdl.handle.net/11462/524 en_US Journal for New Generation Sciences;Vol 7, Issue 1 Central University of Technology, Free State, Bloemfontein 1 382 039 bytes, 1 file Application/PDF Journal for New Generation Sciences, Vol 7, Issue 1: Central University of Technology, Free State, Bloemfontein |
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Motor protection relays Remote GSM node controller GSM modem Short message service (SMS) Modbus protocol application |
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Motor protection relays Remote GSM node controller GSM modem Short message service (SMS) Modbus protocol application Mouton, A.J.J. Smith, C.J. Smith, G.E.; An efficient communication interface and protocol for motor protection relays |
description |
Published Article === A company in South Africa is a three-phase induction motor protection relay manufacturer. The function of the protection relay is to capture running data, to provide protection against possible damage, to control an electric motor and to communicate this data to the System Control and Data Acquisition (SCADA) system in a control room. In the case of remote sites e.g. a pump station, the protection relays are used as standalone units. The protection relays are equipped with communication facilities to be used in an instrumentation environment. If a trip occurs or settings need to be changed a technician has to visit the remote site and address the problem. The ideal cost and time effective solution is to perform these tasks remotely via a reliable wireless network.
A study was conducted to ascertain the viability of using the standard GSM cellular networks in South Africa to effectively control electric motors and to communicate with the Motor Protection Relays (MPRs) controlling the electric motors in order to determine the status of a motor, settings of the motor, trips that occurred and time of occurrence. It was shown that a node controller could be used to store all the data from various electric motors at a single location. It was also shown that the data from the different electric motors could be analysed at the node controller and that communication can then be initiated from the controller to a responsible person via the GSM network. It was further illustrated that, by making use of the GSM networks in South Africa together with the short message service (SMS), communication and control can be effectively established. SMSs proved to be a reliable means of communication between cellular phones, an embedded network and MPRs. It was shown that software protocols, although slower in communication speed, proved to be reliable and effective for the purpose of transferring information between the node controller and the motor protection relays connected to the electric motors. |
author2 |
Central University of Technology, Free State, Bloemfontein |
author_facet |
Central University of Technology, Free State, Bloemfontein Mouton, A.J.J. Smith, C.J. Smith, G.E.; |
author |
Mouton, A.J.J. Smith, C.J. Smith, G.E.; |
author_sort |
Mouton, A.J.J. |
title |
An efficient communication interface and protocol for motor protection relays |
title_short |
An efficient communication interface and protocol for motor protection relays |
title_full |
An efficient communication interface and protocol for motor protection relays |
title_fullStr |
An efficient communication interface and protocol for motor protection relays |
title_full_unstemmed |
An efficient communication interface and protocol for motor protection relays |
title_sort |
efficient communication interface and protocol for motor protection relays |
publisher |
Journal for New Generation Sciences, Vol 7, Issue 1: Central University of Technology, Free State, Bloemfontein |
publishDate |
2015 |
url |
http://hdl.handle.net/11462/524 |
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