PPT-Transformer No. 1 2 3 4 5

6 7 8 9 10 Manufacturer OSRAM OSRAM OSRAM PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS OSRAM Models ETZ 60 HALOTORNIC HTM70 ETPARROT 105 Primaline 70 Primaline 105 ETS 60. 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. Calculations. Calculate the peak-to-peak voltage at the output of the DAC. Vdac. p. -p. . = I. FS. * . R. Where R is the total impedance seen by the DAC and I. FS. is the full-scale output current. An Electronic Device, and also a Action Hero…. Transformers. Transfers electrical energy from one circuit to another.. No physically electrical connection between the circuits.. May involve changes in voltage and current.. DC Machine & Transformer . . U. NIVERSAL . C. OLLEGE OF . E. NGINEERING . &. . T. ECHNOLOGY. GROUP NO.. 9. AGRAWAL MILAP M.(130460109027). AMIT MUNJANI C. (130460109028). Dwijkumar mewada(130460109026). 140070110029 RUSHABH MEHTA. 140070110046 UDIT PATEL. 140070110022 JAIMIN PUJ. 140070110006 BHARGAV KAKADIYA . 140070110064 MAHENDRA SHIYAL. Single Phase Transformers. Principles of Operation – Single Phase. Relationship of induced voltage and flux:. Also . Eqn. 1.148. Fundamental Transformer equation. Only accurate if leakage impedance of coil is negligible. Standards.               . May 7. th. , 2015. Pending Changes in . Low-Voltage Dry-type . Transformer Efficiency Standards. Edgar Perez . - Product Line Manager, . DTDT. Mark . Fairhead. . Textbook Section . 23-10. Physics 1161: . . Lecture 14. Transformers. Increasing current in primary creates an increase in flux through primary and secondary.. ~. e. iron. V. s. V. p. Same . DF/D. t. Lecture Notes 4. Per Unit System. 1. Per Unit (p.u.) System. Computations related to power systems involving machines and transformers are often carried out in . p.u. . system.. In . p.u. . system, power system quantities (such as V, I, R, X, VA, P and Q) are expressed as . Single Phase Transformer. A . transformer is an electrical device that is used to raise or lower the voltage (or current) level. . A . single-phase transformer has two electrically isolated windings. . 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. 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.. 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.