Koncar - Compact Brushless Generators for Small HPP Brochure

Generators have three-phase star connected armature winding on stator and cylindrical rotor with d.c. excitation winding and damper winding. An A.C. (synchronous) exciter with excitation on the stator and three-phase armature on the rotor is mounted on the generator shaft. The rotating armature supplies the generator excitation via rotating three-phase diode rectifier in bridge connection, whereby is avoided the need for sliding contacts (sliprings and brushes). The rotating rectifier is provided with overvoltage protection. The generators are constructed to withstand expected stresses that may occur during operation. The frames, endshields and covering are made of welded steel plates. The armature core is made of dynamo sheets V 330-50A (EN 10106) and windings of electrotechnical copper.The synchronous exciter is mounted in common frame with the generator.The generators are designed for a required runaway speed, and are tested at this value.Depending on requirements, generators can be designed with PMG (pilot generator with permanent magnets).Compact brushless generators for small HPPDesignSHPP Banite, Bulgaria4 MVA, 750 rpmSHHP Vanndola, Norway4,75 MVA, 1000 rpmFallerovo šetalište 22, 10000 Zagreb, Croatiaphone: +385 1 3655 340, +385 1 3667 499fax: +385 1 3666 564e-mail: gim@koncar-gim.hrwww.koncar-gim.hrMain characteristicsCompact synchronous brushless generators are the result of a longtime development and experience of KONCAR - Generators and Motors Inc. in manufacturing a large number of such machines.Generators are designed for direct coupling to hydroturbines and to meet all requirements in small hydroelectric power plants. Modular design enables use of standard and well proven subassemblies (such as bearings, exicters, PMG, rotating rectifiers, frames, coolers, fans) resulting in shorter engineering and delivery terms, as well as in short installation and startup time, since the generators are factory tested and delivered assembled to the site.We offer:• Vertical and horizontal form• Voltages up to 15 kV• Open and closed air cooling (air/water heat exchanger)• Brushless excitation system with PMG as option• Rolling and sleeve bearingsOutputs depending on generator speed and voltage*1000 rpm 750 rpm 600 rpm 500 rpm 375 rpm 300 rpm 250 rpm 200 rpmkVA 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV 10 kV 6 kV 0.4 kV5006308009001000112012501400160018002000224025002800315035504000450050005600630071008000*Other speeds and outputs on requestKoncar - Generators and Motors Inc.Compact brushless generators for small HPP