The aim of this Project Report On Transformer Protection Using Numerical Relay is to analyze and upgrade existing transformer protection system in BPCL Kochi Refinery. BPCL Kochi Refinery, formerly known as Cochin Refineries Limited is a public sector enterprise which came into being as a result of a three party agreement among the Government of India, Philips Petroleum Company of the United States of America and the Duncan Brothers of Calcutta.
Transformers are static devices are completely sealed and immersed in oil, as a rule. Therefore, the chances of errors on them are very rare. “But can the consequences of even a rare error can be very serious if the transformer is disconnected from the network quickly. This requires adequate protection for the auto-transformer of possible errors. Small distribution transformers are usually connected to the network through series fuses instead of circuit breakers. Consequently, no automatic protection is required test equipment. However, the probability of failures of transformers and certainly more so the protection is absolutely necessary, the transformer is large and very important institutions in power. It requires reliable protection devices. The protection system is dependent on the size of the transformer. Transformers are rated in transmission and distribution networks in range of a few kVA to several hundred MVA used. Transformers are used for small to medium sized over current relay. For large transformers, differential protection is recommended. The existing transformer protection relays used in BPCL. There different types of protection employ different types of relays. With the technological advances being made in generation protection section, the [generator protection using new methods have gathered momentum. Here we have studied about functioning of transformer protection using numerical relays.
Transformer protection using numerical relays is the modem version of protection. Numerical relays have got several advantages as compared to ordinary electromagnetic relays. The project is able analyze the existing transformer protection system in BPCL Kochi Refinery. Even though the chances of faults occurring on them are very rare, the consequences of even a rare fault may be very serious unless the transformer is quickly disconnected from the system.
Download Project Report On Transformer Protection Using Numerical Relay.