美國vanguard LTCA-40有載分接開關(guān)分析器

The LTCA-40 Analyzer is a second generation load tap changer analyzer. The LTCA-40 accurately measures winding resistance of highly inductive power transformers. Triple resistance-reading channels allow the measurement of three winding resistances simultaneously. Four-wire (Kelvin) connections provide high accuracy and require no lead compensation. A special feature of this device is its ability to measure and graph the resistance trace of a transformer LTC during operation. Using a 60Vdc power supply, the LTCA-40 is capable of outputting 40 amperes.

• Auto discharge circuit for operator safety
• 3 resistance reading channels including one dynamic channel
• Digital resistance reading from 1 micro-ohm to 500 ohms
• Calculate equivalent resistance value at reference temperature
• Stores 50 static records and 20 dynamic records
• Built-in 4.5-inch thermal printer
• Weighs less than 44 lbs.

LTCA-40	Cables
Cable Part Number [8000-0005] USB Cable [ 6' (1.83m) ] 8000-0005 [8000-0006] RS-232C Cable [ 6' (1.83m) ] 8000-0006 [8000-0015] LTC Control Cable [ 15' (4.57m) ] 8000-0015 [8000-0016] Power + Ground Combination Cable 8000-0016 [8000-0071] Current and Sense Cable (Positive) [ 50' (15.24m) ] 8000-0071 [8000-0079] V3 Sense Cable [ 50' (15.24m) ] 8000-0079 [8000-0083] V2 Sense Cable [ 50' (15.24m) ] 8000-0083 [8000-0087] V1 Sense Cable [ 50' (15.24m) ] 8000-0087 [8000-0103] AC Current Sensor Cable [ 15' (4.57m) ] 8000-0103 [8000-0148] Current and Sense Cable (Negative) [ 50' (15.24m) ] 8000-0148

LTCA-40	Technical Specifications
TYPE Load tap changer analyzer PHYSICAL SPECIFICATIONS 25”W x 8.5”H x 20”D (63.5 cm x 21.6 cm x 50 cm); Weight: 46 lbs (20 kg) OPERATING VOLTAGE 100 – 240 Vac, 50/60 Hz RESISTANCE READING RANGE 1 micro-ohm – 500 ohms ACCURACY 1 – 19,999 micro-ohms: ±0.5% reading, ±1 count; 20 – 999 milli-ohms: ±1% reading, ±1 count; 1 – 500 ohms: ±1.5% reading, ±1 count RESISTANCE CHANNELS Three static resistance reading channels, One dynamic resistance channel TEST VOLTAGE 60 Vdc max TEST CURRENTS 1 ampere, 5 amperes, 10 amperes, 40 amperes AC CURRENT INPUT Clamp-on current sensor, 1 – 20 amperes DISPLAY Back-lit LCD Screen (64 x 128 dot graphic ); viewable in bright sunlight and low-light levels PRINTER 4.5-inch wide thermal printer EXTERNAL DATA STORAGE One USB Flash drive interface port; stores up to 999 test records on a USB Flash drive (not included) COMPUTER INTERFACES One RS-232C port, One USB port INTERNAL TEST RECORD STORAGE Stores up to 128 static resistance test records (48 tests per record) and 11 dynamic resistance test records LOAD TAP CHANGER CONTACT 240 Vac, 1A SAFETY Designed to meet UL 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 standards ENVIRONMENT Operating: -10?C to 50? C (15?F to +122? F); Storage: -30? C to 70? C (-22?F to +158? F) CABLES One 50-foot current cable set, Three 50-foot resistance cable sets, One ground cable, One USB cable, One RS-232C cable, One LTC cable, power cord, cable bag OPTIONS Transportation Case WARRANTY One year on parts and labor Specifications are valid at nominal voltage and ambient temperature of +25?C (+77?F).