PPT-Basic Transformer Protection

Steve Rainwater Energy System Operations Trainer LCRA The objective of this class is to provide the student with a general knowledge of the fundamentals of transformer protection Enabling Objectives. Oils which meet the same specification and class type are miscible in all proportions However when oils mixed as per the above guidelines the mixture should meet the respective standard used In case of mixing unused oils of different origin class PRESENTED BY. K.SURESH. ASST . PROFESSOR. TRANSFORMER MAINLY CONSIST OF. WINDING. CORE. TANK. INSULATIONS. TRANSFORMER OIL. BUSHINGS. CONSERVATOR. BREATHER. COOLING OF TRANSFORMER. BUCHHOLZ RELAY. OIL LEVEL INDICATOR. DescriptionReference No. Single-phase transformer0.577 IEEE Rural Electric Power Conference. April 21, 2015. Troy Knutson P.E.. 1 of 11 coop-owners of Minnkota Power Cooperative. Service to 43,000 members. 5,000 mi. 2. service area. 4,700 miles of line. STPS. . – . An Overview. . . Electrical Protection Schemes take actions only after sensing the occurrence of the fault and thus cannot prevent the fault. (Minor . exceptions. . are there.) . C.L. BELKNAP, C.E. JONES, P.E., O.A. MILLER, P.E. ., R.A. . OBERSTER, K.R. POSEY, P.E.. American Electric Power. United States of America. Introduction. An innovative new concept for the design and operation of EHV transformers and shunt reactor banks was developed and implemented within AEP’s 765kV . The modern digital technology has modified the requirements for instrument transformers used for measurement and protection applications.The modern secondary equipment does not need the high power out ig. 2. Distribution transformer protected with spark gap according to the SFS 2646 standard [6]. III. SERIES IMPEDANCE BASED PROTECTION n alternative to a special transformer design is to intro The performance of a transformer can be calculated on the basis of equivalent . circuit.The. . four main parameters of equivalent circuit are: . - . R. 01. as referred to primary (or secondary R. 02. Introduction. Transformer . is the main reason to transmit and distribute power in AC. Transformer is a device which works on the principle of mutual induction. . Principle. . of operation. It is based on principle of . In electrical power system the range of current and voltage is very high and so it is not possible to measure these values directly by any meter of reasonable size and construction.. So there is a need to step down these voltages or currents to such a value so that it can be easily measured.. The transformer is a static device which is used to transfer electrical energy from one ac circuit to another ac circuit. . Input to a transformer and output from a transformer both are alternating quantities (AC).. El-Sharkawi@University of Washington. 2. Why do we need transformers?. Increase voltage of generator’s output. Transmit high power at low current. Reduce cost of transmission system. Adjust voltage to a usable level. PREPARED BY:. VRUNDA RANA (131130107049). KRIMA . PATEL . (131130107036). NIKITA THAKKAR (131130107061). ELEMENTS OF ELECTRICAL ENGINEERING (2110005. ). SAL COLLEGE OF ENGINEERING. OPP. SCIENCE CITY, BHADAJ.