Relay coordination of Industrial plant
| Author(s) | : | Ashokkumar Parmar |
| Institution | : | Electrical Engineering Department, Shantilal shah Engineering College, Bhavnagar |
| Published In | : | Vol. 5, Issue 3 — March 2018 |
| Page No. | : | 50-58 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
Relay coordination is one of the integral parts of power system analysis in industrial power system. Any newplant is being plane or existing plant load demand increases protection devices coordination is required for selective andfast isolation of faulty section without affecting remaining area. Short circuit analysis is the pre requisite for relaycoordination as short circuit current is required for relay setting. In this paper, relay coordination of 6.6 kV industrialplants is presented using Electrical Transient Analysis Program -7.5.5(ETAP). Symmetrical breaking current at differentnodes of power systems are used relay coordination. The plant is supplied by two existing generators of 16.5 MW andone more generators of 11.8 MW are newly installed. Black start facilities of TG’s are provided by external grid support.Existing load of 17.5 MW is expanded to 24 MW. Load flow analysis and short circuit study of this plant have beenconducted and it is suggested G2 and G3 configuration of generation. Therefore, protection coordination is performedfor G2+G3 configurations using ETAP.
Ashokkumar Parmar, “Relay coordination of Industrial plant”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 3, pp. 50-58, March 2018.
