03811nam a2200193Ia 4500008005200000020001500052082001800067100001800085245003100103250000800134260003800142300001700180440003100197504284400228520048503072650001003557650002303567650002703590200103s 1971 ||||xx |||||||||||||| ||und|| a0408000287 a623.8503bWAT aWatson, G. O. 0aMarine electrical practice a4th bNewnes-Butterworthsc1971aLondon a502 p.: ill. aMarine engineering series. aTable of Contents Chapter 1. Introduction; Requirements and regulations; Temperature requirements; A.C. installations; Chapter 2. Insulation and temperature ratings of machines; Hot-spot temperatures; Temperature rise; Ambient air temperatures; Basis of machine ratings; Method of measurement of temperature rise by resistance; Measurement of ambient air temperature; Chapter 3. D.C. generators; COMPOUND-WOUND GENERATORS; PARALLEL OPERATION; Chapter 4. D.C. switchgear; Types of construction Switchgear for parallel operated generatorsReverse current protection; Instruments; Preferential tripping; Dashpots; Earth indication; Pilot lamps; Protection against short-circuit; Fuses; Discrimination; Busbars; Busbar cooling; D.C. busbar ratings; Electromagnetic effects on busbars; Chapter 5. Rotary amplifiers; Chapter 6. A.C. generators; GENERATORS; SEPARATELY-EXCITED A.C. GENERATORS; SHAFT-DRIVE GENERATORS; Chapter 7. Automatic voltage regulators; Component parts; Operating principles; Sources of excitation supply; Voltage comparison circuit; Amplifier and conditioning circuit Excitation control elementPower circuits; Load sharing; Excitation during short circuit; Additional features; Chapter 8. A.C. switchgear; CIRCUIT BREAKER RATINGS; CONSTRUCTION; MAINTENANCE; A.C. BUSBAR RATINGS; GENERATOR PROTECTION; GENERATOR INSTRUMENTATION; NEUTRAL SWITCHING; POWER FACTOR AND LOAD SHARING; SYNCHRONISING; AUTOMATIC CONTROL OF DIESEL GENERATOR SETS; References; BIBLIOGRAPHY; Chapter 9. Distribution; A.C. SYSTEMS; FREQUENCY; NEUTRAL EARTHING; FUSES; MINIATURE CIRCUIT BREAKERS (M.C.B.); MOULDED CASE CIRCUIT BREAKERS (M.C.C.B.); PROTECTION; CABLE PROTECTION; DISCRIMINATION ARRANGEMENT OF CIRCUITSDIVERSITY FACTOR; STEERING GEAR CIRCUITS; SHORE CONNECTIONS; TRANSFORMERS; CONTROL OF VENTILATING FANS; PUMPS; References; Chapter 10. Electric cables; CONDUCTORS; INSULATION; SHEATHING; ARMOURING AND SCREENING; FLEXIBLE CORDS AND CABLES; CURRENT RATINGS; INSTALLATION OF CABLES; Chapter 11. Motors; D.C. MOTORS; MAINTENANCE; Chapter 12. Motor control gear; D.C. motors; AC/DC motors; A.C. motors; Overload protection; Bi-metal thermal overload relays; Magnetic overload relays; Temperature sensing devices; Protection against single-phasing; Star-delta starter Vacuum contactorsUnder-voltage protection; Three-phase A.C. starters; Auto-transformer starter; Rotor starters (rotors or slipring motors); Incorrect phase connections; Incorrect motor connections; Synchros; Maintenance of control gear; Chapter 13. Semi-conductor diodes; Environmental conditions; Rectifiers; Germanium rectifiers; Selenium rectifiers; Silicon rectifiers; Choice of type; Thyristors; Transistors; Tunnel diodes; Chapter 14. Storage batteries and battery control gear; CLASSES OF BATTERIES; TYPES OF STORAGE BATTERIES; MARINE BATTERY APPLICATIONS Includes index aA standard work on the installation, maintenance, and operation of marine electrical equipment since its first publication in 1957 as a guide for engineers preparing for competency exams and a reference for seagoing engineers and electricians. Changes since the 5th edition (1981) include new or expanded discussions of programmable electronic systems, protection and discrimination, impressed cathodic protection, and other recent technological advances and changes in standards. aShips aElectric equipment aElectrical engineering