美國vanguard EZCT-2000C電流互感器測試裝置

The EZCT-2000C is Vanguard’s third-generation microprocessor-based current transformer test set. Designed specifically for CT testing, the EZCT-2000C has the following outstanding features that can greatly increase productivity and save time during the commissioning stage:

• Performs CT excitation, current-ratio, polarity, and phase angle tests
• Measures insulation resistance and winding resistance of the CT secondary windings
• Measures the CT’s load burden
• Standalone or computer-controlled via USB or Bluetooth wireless interface

The EZCT-2000C’s test leads can be connected to all the CT output terminals, and the complete CT test can be performed automatically without any operator intervention.

• Performs CT excitation, current-ratio, polarity, and phase angle tests
• Measures insulation resistance and winding resistance of the CT seconday windings
• Measures the CT's secondary burden
• Test record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-comments
• Built-in 4.5-inch wide thermal printer
• Plot Multiple Saturation Curves
• Stores up to 128 CT test plans and 140 test records internally
• USB, Bluetooth, and USB Flash drive interface

EZCT-2000C	Cables
Cable Part Number [8000-0005] USB Cable [ 6' (1.83m) ] 8000-0005 [8000-0006] RS-232C Cable [ 6' (1.83m) ] 8000-0006 [8000-0016] Power + Ground Combination Cable 8000-0016 [8000-0105] H Cable Set (Metal Type) [ 35' (10.67m) ] 8000-0105 [8000-0108] X Cable Set [ 20' (6.10m) ] 8000-0108 [8000-0109] Megger Cable Set + Current Cable Set Combo (20' + 8') 8000-0109 [8000-0143] EZCT H Cable Set (Plastic Type) [ 35' (10.67m) ] 8000-0143 [8000-0157] EZCT H Cable Set (with Banana Jacks) [ 35' (10.67m) ] 8000-0157

EZCT-2000C	Technical Specifications
TYPE Portable current-transformer test set PHYSICAL SPECIFICATIONS 19"W x 13"H x 16"D (48.3 cm x 33cm x 40.1 cm); Weight: 73 lbs (33.1 kg) INPUT POWER 100 – 120 Vac or 200 – 240 Vac (factory pre-set), 50/60 Hz MEASUREMENT METHOD IEC 60044-1, IEC 61869, ANSI/IEEE C57.13.1, and ANSI/IEEE C57.12.90  TEST OUTPUT VOLTAGES 0 – 50 Vac @ 10A max 0 – 300 Vac @ 10A max 0 – 500 Vac @ 5A max 0 – 1200 Vac @ 1.2A max 0 – 2000 Vac @ 1A max CURRENT SOURCE 1 – 20A @ 0 – 15 Vac CURRENT SOURCE DISPLAY Test current and current on-time VOLTAGE READING RANGE 0 – 2,200 Vac; Accuracy: ±1.0% of reading, ±1 V CURRENT READING RANGE 0 – 10A; Accuracy: ±1.0% of reading, ±0.02A CT CURRENT RATIO RANGE 0.8 – 999: ±0.1% 1000 – 1999: ±0.3% 2,000 – 4,999: ±1% 5,000 – 10,000: ±1.5% PHASE ANGLE MEASUREMENT 0 – 360 degrees; Accuracy: ± 1.0 degree) RESISTANCE READING RANGE 100 micro-ohms – 30 ohms; Accuracy: 2% of reading, ± 1 count, ± 10 micro-ohms INSULATION RESISTANCE READING RANGE 2 Mega-ohms – 500 Mega-ohms; Accuracy: 3% of reading, 500 – 1000 Vdc test voltage DISPLAY Back-lit LCD Screen 240 x 128 pixels; 114mm x 64mm Viewable in bright sunlight and low-light levels PRINTER Built-in 4.5-inch wide thermal printer COMPUTER INTERFACES One USB port and Bluetooth wireleass interface EXTERNAL DATA STORAGE One USB Flash drive interface port (Flash drive not included) PC SOFTWARE Windows?-based CT Analysis software is included with purchase price INTERNAL TEST RECORD STORAGE Stores 140 test records. Each test record may contain up to 10 sets of excitation, resistance and ratio data INTERNAL TEST PLAN STORAGE Stores 128 test plans. Each test plan can store 10 excitation test voltage and current settings 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) HUMIDITY 90% RH @ 40°C (104°F) non-condensing ALTITUDE 2,000 m (6,562 ft) to full safety specifications CABLES One 20-foot cable set (X1-X5), one 35-foot H cable set, current source cables, insulation test cables, power cord, ground cable. A transportation case is included with the purchase price WARRANTY One year on parts and labor Specifications are valid at nominal voltage and ambient temperature of +25?C (+77?F).