IARJSET ISSN (Online) 2393-8021 ISSN (Print) 2394-1588 International Advanced Research Journal in Science, Engineering and Technology ISO 3297:2007 Certified Vol. 4, Issue 10, October 2017 Copyright to IARJSET DOI10.17148/IARJSET.2017.41017 102 Series Compensated Line Protection using Artificial Neural Network Prof. Vikramsingh R. Parihar 1 , Manisha Thakare 2 , Chanchal Dahake 3 Assistant Professor, Department of Electrical Engineering, PRMCEAM, Amravati, India 1 Student, Department of Electrical Engineering, PRMCEAM, Amravati, India 2 Student, Electronics Department, G.H. Raisoni College of Engineering, Amravati, India 3 Abstract: This paper presents Artificial Neural Networks primarily based protection for series stipendiary lines and also the downside Janus-faced by the space protection theme used for transmission lines protection once they square measure stipendiary serial with the FACTS devices like TCSC. the employment of TCSC creates sure issues to distance protection schemes as there's a modification within the apparent ohmic resistance measured by the relay. The modification within the apparent ohmic resistance measured is corrected by mistreatment Artificial Neural Networks (ANN) for the proper operation of the relay, that is extensively tested mistreatment MATLAB Simulation for various conditions. The results obtained show that by mistreatment the synthetic Neural Networks coaching strategies the operation accuracy of the relay used for distance protection is improved. Keywords: Artificial Neural Networks, Distance protection, FACTS devices, Thyristor Controlled Series electrical condenser I. INTRODUCTION Presently as a result of the liberation of power trade and also the restriction Janus-faced by power trade as a result of energy, environmental and restrictive problems, the most challenge is to enhance the facility transfer capability and conjointly to enhance the system integrity of the given transmission facility. The on top of mentioned downside is self- addressed by mistreatment series compensation. Series compensation once introduced in power systems influences the facility flow during a specific network section that reduces active power losses and conjointly prevents system - sub synchronous oscillations [1]-[3]. FACTS device square measure ordinarily utilized in power systems that takes care of the facility transfer capability, voltage stability and power oscillation damping. Thyristor Controlled Series electrical condenser (TCSC) is one in all the series compensation device used however, the employment of TCSC creates sure issues for standard distance protection schemes as a result of the changes within the apparent ohmic resistance measured by the relay. The apparent ohmic resistance seen by the relay is influenced by the unsure variation of series compensation voltage [4]-[5]. suppliers of transmission facilities ordinarily like distance protection because the primary protection system, As series compensation is introduced in power transmission lines it desires extra attention whereas selecting the protection scheme as series compensation needs further care additionally to the well apprehend protection challenges on HV transmission networks. In fashionable days facility protection systems has become intelligent has it uses microchip primarily based techniques like Artificial Neural Networks to enhance distance protection of line with TCSC compensation that uses back propagation rule and is extensively tested mistreatment MATLAB Simulation for various conditions [6]-[11]. This paper is organized as follows: within the initial section the introduction to Protection of Series stipendiary Transmission Lines mistreatment Artificial Neural Networks is mentioned, within the second section temporary introduction of Thyristor Controlled Series Capacitor(TCSC) is bestowed, within the third section Artificial Neural Networks square measure mentioned, within the fourth section Distance Protection basics and impact of SC Compensation on Protection is bestowed, in fifth section simulation strategies used and results square measure bestowed and in sixth section conclusions supported the results obtained square measure bestowed. II. THYRISTOR CONTROLLED SERIES CONDENSER For many years series compensation technique is employed to regulate the facility transfer between 2 stations by adjusting net series ohmic resistance of the road. Installation of a series electrical condenser could be a standard and established technique of skyrocketing line capability, by reducing net series ohmic resistance, so increasing power transmission. As this technique is well established technique however, as a result of the limitation of its slow shift time it's replaced by Thyristor controllers, that square measure quick acting devices as a result of that fast and continuous management of line compensation is feasible. Thyristor Controlled Series electrical condenser (TCSC) is one in all the controllers used for series compensation. TCSC could be a reality device that could be a combination of thyristor-