The motor is required to operate at a desired speed but it has to meet the load torque requirement ,which depends on motor current Idc. Speed sensing As shown in the fig.. The speed error signal is applied to the speed controller as shown in figure.. Current sensing The feedback signal is applied to a comparator which compares it with the current reference signal produced by the speed controller ,to produce Vc to the control the firing angle of the source side converter shown in fig..
The output of the speed control is called as torque reference. The input to the current controller is the error signal between the torque reference signalat the output of speed controller and the current feedback signal. Properties Used for the synchronous motor in very large HP rating.
The load commutated inverter is simple and has lower compared to the inverter used in CSI -induction motor drives. The power switches used in the LCI may not have the self commutation capacity. Thank you. Open navigation menu. Close suggestions Search Search.
User Settings. Skip carousel. Carousel Previous. Carousel Next. What is Scribd? Explore Ebooks. Bestsellers Editors' Picks All Ebooks. Explore Audiobooks. Bestsellers Editors' Picks All audiobooks. Explore Magazines. Editors' Picks All magazines. Explore Podcasts All podcasts. Difficulty Beginner Intermediate Advanced. Explore Documents. Uploaded by Joyson Pereira. Did you find this document useful? This acquisition helped LCI gain better quality control for the various steel parts for its chassis production.
Seeing a need for diversification, a young Jason Lippert, the son of Doug Lippert and grandson of Larry Lippert, received the green light from management to start a travel trailer chassis line in McAdoo, Pennsylvania.
Drew Industries purchased Better Bath, adding plastic thermoformed kitchen and bath components to the growing portfolio. LCI acquired Zieman Manufacturing, its largest purchase to date. LCI acquired Venture Manufacturing, increasing manufactured and residential housing chassis capabilities and capacity in Howe, Indiana.
LCI acquired HappiJac, a manufacturer of numerous patented RV products such as bed lifts, slide-outs, camper jacks and tie down systems. LCI also acquired Steelco, a manufacturing company that held numerous slide-out patents.
LCI began manufacturing Coach Step products, adding motorized entry steps to the list of capabilities. LCI acquired Extreme Engineering and began building specialty trailers for high-end watercraft, further expanding marine trailer capabilities. LCI acquired certain products of Schwintek.
LCI acquired the rights to manufacture Level Up, an innovative automatic hydraulic leveling system for fifth-wheels, providing both front-to-rear and side-to-side leveling to protect the chassis. In , there were no RVs that were manufactured with an automatic leveling system. In , it is almost the standard or optional across the board. LCI acquired Starquest to expand further into specialty markets by producing windows and doors for truck caps, horse trailers and buses.
LCI introduced its popular Solera line of manual and electric awnings and protective slide-out sleeves. LCI acquired Agile Resources to expand its thermoforming product production in the Midwest and to further expand plastic production for specialty markets.
LCI officially begins its aftermarket sales division, focusing on retail and aftermarket product offerings and marketing programs. This was a critical turning point for LCI, adding the capability to design and engineer specific electronic technologies for RV towing, leveling and actuation products. LCI acquired Duncan Systems. LCI acquired Highwater marine seating, further expanding marine furniture manufacturing capabilities. LCI acquired Sessa Klein, an Italian manufacturer of rolling stock windows for high-speed and commuter trains.
This acquisition propelled LCI to become the leading manufacturer of pontoon furniture. LCI broke ground on its automated chassis beam processing center, the largest ever capital project in its history.
LCI acquired Hehr, a long-time competitor in the window market. LCI acquired ST. This is the place to find out what manuals you are missing. Navy , Some of these classic British instruments were kept in use over 50 years. The Gunnery Pocket Book, B. Examples included are taken from the six-inch cruiser of the Mauritius class, a Dido class cruiser, and a typical destroyer. Twin mm Antiaircraft Assemblies , OP , , is a Navy service manual for the twin mount version of the classic WW II anti-aircraft gun on the tripod style mount.
The maintenance manual for the dual Bofors 40mm gun. This was the most widely used anti-aircraft gun of WW II. Navy fire control systems. These components are the building blocks of some of the most successful analog mechanical computers ever built. Basic Fire Control Mechanisms Maintenance , OP a, , has maintenance procedures for the mechanical computing elements used in U. Standard Fire Control Symbols , OP , , and established a set of standard fire control symbols to be used in various U.
Computer Mark 1 and Mods. Maintenance Volume 1 , Ordnance Pamphlet A, , is the first half of the maintenance manual for the Mark 1 computer.
Stable Element Mark 6 Ordnance Pamphlet , , describes the stable element that determines the pitch and roll of the ship and supplies this to the fire control computer. Rangefinders Marks 58; 58, Mod. I; 65; and 65, Mod. Index Of Assemblies For U. Dummy Log , I. Instruction Book No. Optical Instruments Data Sheets , O. Methods of Drying and Charging Optical Instruments , OD , , describes how to dry and charge with nitrogen or helium optical instruments.
Boresights and Boresight Telescopes , O. This provides insight into how PT Boats where used. This provides the builders specifications for PT Numerous details about PT Boats appear in the manual that provide insight to both the technology and the life aboard PT Boats.
Torpedo Angle Solvers Mark 7 and Mods. Describes the circular slide rule used to calculate torpedo gyro angle. Tactical Data For Torpedoes Mark Maintenance Instructions For Mark 18 and Mods. Torpedoes , O. The Whitehead Torpedo U. Mark I. Compressors and Launching Tubes , , has the support equipment for the Whitehead torpedo. The drawings of the launching tubes are very rare. The Howell Torpedo, From it was used as an antisurface ship torpedo fired from battleships and torpedo-boats.
The Schwartzkopff Torpedo U. It was used as an antisurface ship torpedo fired from battleships and torpedo-boats. Depth Charges, Mark 6, Mark 6 Mod. Torpedotown U. The merchant equivalent of Basic Military Requirements, it has details of lifeboats and basics of life at sea. This manual shows the basics of photo interpretation. This manual shows the basics of photo interpretation with the example of Cold War airfields. This describes the high level US cipher system used from The strip cipher cipher of WW II.
Also known as CSP and M Instructions for the Use of Aircraft Code No. Museum ships stabilizing or restoring their electrical systems will appreciate many parts of the manual.
Items such as the proper ways of working with armored cable, lacing, etc. Museum ships stabilizing or restoring their radios or radars systems will appreciate many parts of the manual.
Introduction to Radio , An introduction to electronics and naval radio. It covers basic tube electronics in the beginning, then explains the basic operating instructions for typical WW II radios. Notes on Servicing Radio and Sound Equipment , , is a training manual that introduces the art of tube radio and sound equipment repair.
This included both receivers and transmitters, and the motor generators they use. Radar Operator's Manual ,
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