Stator

dges The wedges that hold the rotor winding in the slots are sometimes also complex in design, but always highly stresses. The wedges must hold the copper winding and its insulation systems in place at high rotational speeds and allow cooling gas to pass through them. This one reason why at the wedges there are higher stresses. The wedges generally have cooling vents machined into them, which reduces their effective strength. High cooling gas temperatures can also affect wedge strength if the temperatures

SUMMER TRAINING REPORT AT BHARAT HEAVY ELECTRICAL LIMITED (BHEL) RANIPUR, HARIDWAR – 249403 FROM 16th MAY 2014 TO 30 th JUNE 2014 SUBMITTED BY Mohit Sharma B.TECH(EE),4th year INDIAN INSTITUTE OF TECHNOLOGY ROORKEE DECLARATION I hereby declare that this summer training report submitted to the Department of Electrical Engineering, IIT Roorkee is a record of an original work done by me under the guidance of Mr. Rajmani Jaiswal, Executive Engineer, Bharat Heavy Electrical Limited, Haridwar

This thesis deals with the design and analysis of control system structures for electric drives equipped with permanent magnet synchronous machines (PMSM) in automotive application.With the increasing popularity of multi-level inverters, the room for improvement of the performance of voltage source inverters has continuously been tested for various applications. The rapid development of high switching frequency power electronics in the past decade leads towards wider application of voltage source

This thesis deals with the configuration and investigation of control framework structures for electric drives furnished with changeless magnet synchronous machines (PMSM) in car application. With the expanding prominence of multi-level inverters, the opportunity to get better of the execution of voltage source inverters has persistently been tried for different applications. The fast improvement of high exchanging recurrence power gadgets in the previous decade leads towards more extensive use of

primary water because it is used for cooling stator winding, phase connectors and bushings . The secondary cooling absorbs the heat from the primary cooler when water is circulated in a closed circuit by the primary water cooler. The pump is supplied with in primary water cooler. Water is supplied to the flow paths of the generator by supplying it to the primary water tank i.e by supplying it to tht primary water cooler through the pump. Flow path I : Stator winding is cooled by Flow path I . This

knowledge. CONTENTS 1). Introduction 2).Coil & insulation manufacturing shop (Block-IV) 3).Electrical Machines Block (Block-I) 4).Manufacturing of Turbo Generator 5).Introduction to 500MW Turbo Generator 6).Construction and features of Stator body

Primary Cooling Water Circuit In The Generators : The treated water used for cooling of the stator winding, phase connectors and bushings is designated as primary water in order to distinguish it from the secondary coolant (raw water, condensator etc.). The primary water is circulated in a closed circuit and dissipates the absorbed heat to the secondary cooling in the primary water cooler. The pump is supplied with in primary water cooler. The pump is supplied with in the primary water tank and delivers

took step for set up of heavy engineering industry and Bharat Heavy Electrical Ltd.In Bhopal the first heavy electrical manufacturing unit of country was started .Analysing its rapid advancement ,three more factory was established in 1965. The aim of establishing BHEL was to meet the growing power requirement of the country. In 1969 BHEL appeared on the power map of India .In 1969 BHEL appeared on the power map of India ,when at Basin Bridge Thermal Power plant in Tamil Nadu the first unit supplied

(4.14) Where ωr is the electrical rotor speed and α is the angle between the rotor field and the stator current phasor, known as the torque angle. The d and q axes stator currents in the rotor reference frame for a balanced three phase operations are given by irq ird Substituting the equations (4.12) in (4.14) into (4.15) which gives the stator currents in the rotor reference frames: irq sin α

A comprehensive report on the study of Manufacture & Assembly of Turbo Generator Submitted by: DIVYA KUMAR GUPTA B.Tech, Electrical Engineering