Using the Vanguard EZCT-2000C Plus Automated CT Test Set CT excitation test is performed using the ANSI/IEEE C57.13.1 test method. Test voltage ranges from 50, 300, 500,1200 and 2000 Vac can be selected for the excitation test. The test voltage is raised and lowered automatically by the EZCT-2000C Plus.
The excitation test voltage and current data is collected and stored in the unit's internal memory. Knee point voltages (ANSI 10/50, IEC 60044, IEEE-30, IEEE-45) are calculated and printed on the test report. All of the test leads can be connected to the CT output terminals (X1, X2, X3, X4 and X5), and there is no lead switching required during testing.
This convenient arrangement allows for testing any of the 10 possible combinations of X1 to X5. Up to 10 excitation tests can be stored in one record.
Once the test is completed, the test report and CT excitation curves can be printed on the built-in thermal printer.
Vanguard EZCT-2000C Plus Automated CT Test Set 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 ANSI/IEEE C57.12.90 and ANSI/IEEE C57.13.1 standards
Output Test 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 volt
Current Reading Range 0 ¬ 10A; Accuracy: ±1.0% of reading, ±0.02A
Current Ratio Range 0.8 ¬ 999: 0.1%, 1000 ¬ 1999: 0.3%, 2000 ¬ 5000: 1%
Phase Angle Measurement 0 ¬ 360 degrees; Accuracy: ±1.0 degree
Resistance Reading Range 100 micro-ohms ¬ 10 ohms; Accuracy: 2% of reading, ±1 count, ±10 micro-ohms
Insulation Resistance Test Feature 2 Mega-ohms ¬ 500 Mega-ohms; Accuracy: 3% of reading, 500 ¬ 1000 Vdc test voltage
Display Backlit 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 wireless 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 specifi cations
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