International Journal Series, Archives of Electronics and Electrical Engineering, Vol. 2, No. 5, 2016, 14-26 http://ijseries.com/ This work is licensed under a Creative Commons Attribution 4.0 International License. 14 Transmission Line Differential Protection Based on Microprocessor Relays a Saeed Roostaee, b Mini S Thomas, and c Shabana Mehfuz a, Research Scholar, Department of Electrical Engineering Jamia Millia Islamia, Delhi, India b,c, Professor, Department of Electrical Engineering Jamia Millia Islamia, Delhi, India 1. INTRODUCTION Transmission line differential protection function is one of the most important protection of transmission lines which should issue trip signal without any delay in case of any faults in transmission lines. The most important advantage of transmission line differential protection function is unaffected to external faults [1-3]. Transmission Line differential protection function is based on the impedance of fault component is proposed in [4]. Reference [5, 6] has described protection of transformer differential performance, for conventional and Ethernet-based signalling where hardwired implementation replaced with process bus implementation. The instantaneous value of process bus for transmission line differential protection is presented in [7]. Reference [8] discussed line differential protection based on IEC 61850. In [9] an adaptive current line differential protection scheme is proposed to improve the dependability and security of the transmission line differential function. Wide area differential protection based on IEC 61850 is presented in [10]. Based on the literature review on line differential line protection there are two important problems for this protection function. Communication and Charging Current Compensation of distributed parameter line are the both of the problems which are discussed on this paper. ABSTRACT: Nowadays, in digital substation, lots of new technologies such as microprocessor relays and communication technology bring lot of advantages for protection functions. Differential protection plays a very important role because of absolute selectivity for isolating the faulty part. This paper reviews transmission line differential protection based on microprocessor relays. KEYWORDS: Transmission line differential protection function; Microprocessor relay; Line protection
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International Journal Series,
Archives of Electronics and Electrical Engineering, Vol. 2, No. 5, 2016, 14-26 http://ijseries.com/
This work is licensed under a Creative Commons Attribution 4.0 International License. 14
Transmission Line Differential Protection Based on Microprocessor Relays
aSaeed Roostaee, bMini S Thomas, and cShabana Mehfuz
a, Research Scholar, Department of Electrical Engineering Jamia Millia Islamia, Delhi, India
b,c, Professor, Department of Electrical Engineering Jamia Millia Islamia, Delhi, India
1. INTRODUCTION
Transmission line differential protection function is one of the most important protection
of transmission lines which should issue trip signal without any delay in case of any faults
in transmission lines.
The most important advantage of transmission line differential protection function is
unaffected to external faults [1-3].
Transmission Line differential protection function is based on the impedance of fault
component is proposed in [4]. Reference [5, 6] has described protection of transformer
differential performance, for conventional and Ethernet-based signalling where hardwired
implementation replaced with process bus implementation. The instantaneous value of
process bus for transmission line differential protection is presented in [7]. Reference [8]
discussed line differential protection based on IEC 61850. In [9] an adaptive current line
differential protection scheme is proposed to improve the dependability and security of the
transmission line differential function. Wide area differential protection based on IEC 61850
is presented in [10]. Based on the literature review on line differential line protection there
are two important problems for this protection function. Communication and Charging
Current Compensation of distributed parameter line are the both of the problems which are
discussed on this paper.
ABSTRACT: Nowadays, in digital substation, lots of new technologies such as microprocessor relays and
communication technology bring lot of advantages for protection functions. Differential protection plays a very
important role because of absolute selectivity for isolating the faulty part. This paper reviews transmission line
differential protection based on microprocessor relays.
KEYWORDS: Transmission line differential protection function; Microprocessor relay; Line
Archives of Electronics and Electrical Engineering, Vol. 2, No. 5, 2016, 14-26 http://ijseries.com/
This work is licensed under a Creative Commons Attribution 4.0 International License. 26
7. CONCLUSION
Differential protection is one of the main protection functions in any electrical system.
In case of protection of transmission lines, the devices exchange their Sampled data via
communication channel and compare the currents.
Application of time synchronization in microprocessor line differential relays make the
protection functions much more available and accurate. Digital sampling makes relay much
more sensitive. Digital transmission line differential relays apply peer to peer
communication in each side of a line. Each relay computes differential current with
synchronized data.
REFERENCES
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707. 3. Mukerjee, R. N., & Abdullah, M. F. B. (2008). Under-reach correction in twin circuits without
residual current input from the parallel line. IEEE Transactions on Power Delivery, 23(3), 1359-
1365. 4. Ma, J., Pei, X., Ma, W., & Wang, Z. (2015). A New Transmission Line Pilot Differential
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Archives of Electronics and Electrical Engineering, Vol. 2, No. 5, 2016, 14-26 http://ijseries.com/
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10. Wang, Y., Yin, X., You, D., Xu, T., & Xiang, H. (2008, April). Development of wide area current differential protection IED based on IEC 61850. In 2008 IEEE/PES Transmission and
Distribution Conference and Exposition (pp. 1-9). IEEE. 11. Kase, T., Kurosawa, Y., & Amo, H. (2008). Charging current compensation for distance
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