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Free Delivery Worldwide : Electrical Power System Protection : Hardback : Chapman and Hall : 9780412817601 : 0412817608 : 30 Jun 1999 : Although many of these techniques have not yet found major application in protection, it is nevertheless essential for the educated protection engineer to have a basic understanding of the underlying principles and methodology so that he, or she, can evaluate their suitability for new relaying problems and applications.
Features: -Low level output.-Input ground isolation noise rejection circuit.-4-Channel RCA input/output.-Bass/Treble/Gain Controls.-Speaker short circuit protection.-Overload circuit protection.-Turn on delay.-Automotive style protection fuses.-Over current /overtension protection circuit.-With external fuse (10A).-Field-effect high-performance switch power supply circuit.-Power turn-on postpone circuit.-With power supply indicator.-DC12V power supply.-Car amplifier (4 Ch) X1.-Tools X1.-Operations manual X1.-Distressed: No.Specifications: -Power supply: 12V.-Bridge output: 4 - 8.-Bridged output power (MAX): 2800W (1400W x 2).-Output power (Max): 2800W (700W x 4).-Output power (RMS): 280W (70W x 4).-Frequency response: 20Hz - 20KHz ± 1.5dB.-Treble con: ± 10dB 10KHz.-Bass con: ± 10dB 100Hz.-Input sensitivity: Dimensions: -Overall Product Weight: 1.85.
Free Delivery Worldwide : Power System Protection and Switchgear : Paperback : McGraw-Hill Education - Europe : 9780074623503 : 0074623508 : 01 Oct 1994
PowerShield SafeGuard 750VA PSG750 Features: Automatic Voltage Regulation (Buck and Boost) Light-weight compact and elegantly designed Intelligent microprocessor control Monitoring and shutdown software included Fax/modem/LAN surge suppression port Overload protection and alarm Output short circuit protection Start on battery function (cold start) USB communication Easy user replacable battery Australian/New Zealand approved sockets Wall mountable Fast charging – 90[[%]] in 4 hours Specifications: Model: PSG750 Topology: Line interactive Input: Voltage: 240Vac Voltage range: 177Vac to 290Vac Frequency: 50Hz Output: Nominal voltage: 240Vac Voltage regulation: +/-10[[%]] Battery transfer time: 6 msec ( typical ) VA/Wattage 750VA / 450W Battery: Type: Sealed lead acid maintenance free battery Capacity: 12V/9Ah Full load backup time: 2.5 min Data protection: Tel/modem/Lan, RJ45 connector Software: PowerShield NetGuard software Sports Windows, Linux, Unix and Mac Operating systems Interface: USB interface Audible noise: <40dBA Operational environment Temperature: 0-40C, Humidity 0-90[[%]] Non condensing Physical: Dimension (DxWxH): 199×292×91mm Weight: 7kg
TERM:Power Protection; GP:20; EBAY:4