Three-phase test set for measuring turns ratio, phase shift and excitation current of power, instrument and distribution transformers
Features:
· Ratio range 45000 : 1
· Adjustable excitation test voltages: 1V to 150V
· Automatic vector group detection
· Built-in tap changer control unit
· Storage capacity to handle over 500 test files
· Equipped with thermal printer
· Connectivity: USB
· Light weight
Applications
· Transformer manufacturers
· The companies that maintain and repair electrical power plant, substation, refineries and factories
· Electrical engineering companies and electrical power labs
Hardware:
· CPU: 32bit ARM based MCU @ 100MHz
· Display: 4*20 Character LCD with back light
· Main Voltage: 200 - 240VAC, 50Hz
· Max Power Consumption @ 150V 1A: 50 W
· Dimension (L * W * H):
o Basic Unit: 460 x 330 x 150 mm
o Case Cover: 480 x 350 x 170 mm
· Weight (Basic Unit): 9 kg
· Computer Interface: USB
· Internal Storage: Up to 350 test results
· Keyboard: Rugged Membrane Keyboard (10 Alpha-Numeric Keys, 6 Function Keys)
- Turns Ratio, Excitation Current, Phase angle:
| Turns Ratio:
| Range | 45000 : 1 |
| Accuracy@250VAC | 1-1999: ±0.1% 2000-3999: ±0.1% 4000-9999: ±0.3% 10000-19999: ±0.5% 20000-45000: ±1% |
| Accuracy@100VAC | 1-1999: ±0.1% 2000-3999: ±0.3% 4000-9999: ±0.5% 10000-19999: ±1% 20000-45000: ±1.5% |
| Accuracy@40VAC | 1-999: ±0.1% 1000-1999: ±0.5% 2000-10000: ±1% |
| Accuracy@10VAC | 1-199: ±0.1% 200-999: ±0.2% 1000-2000: ±0.5% |
| Accuracy@4VAC | 1-199: ±0.2% 200-800: ±0.5% |
| Accuracy@1VAC | 1-99: ±0.5% 100-200: ±1% |
| Excitation Current:
| Range | 1uA – 1A |
| Typical Accuracy | 2% + 1Digit |
| Resolution | 0–9,999mA 1μA 10–99,99 mA 10μA 100–999,9mA 100μA |
| Phase angle:
| Range | 360º |
| Accuracy | ±0.05º |
printer:
o Printer Type: Thermal Printer With Fixed Print Head
o Form of Printout: Result (Name, Location, Date, Time, Serial Number, Manufacture, Turn Ratio, Vector Group, Applied Voltage, Excitation Current, Deviation, Continuity)
o Resolution: (Graphic) Resolution 8 Dots/mm (203 dpi)
o Paper: Width 58 ± 0.5 mm (2.28” ± 0.2”)
Environment:
o Operating Temperature: -20 to 55 °C (-4 to 131 °F)
o Storage Temperature: -30 to 70 °C (-22 to 158 °F)
o Humidity: 20% - 95% RH , Non-Condensing
Accessories:
o H winding test lead set, 4 x 10 m with clamps
o X winding test lead set, 4 x 10 m with clamps
o Tap Changer Control cable set 5 m
o Ground cable
o USB cable
o Case Cover and Cable bag
o User Manual + Quick Reference + Calibration Report
o Case Carrier (Heavy Duty Transport Case) (Optional)
Software:
· Under Windows
· Read the information stored in the device (measured values).
· Save these values along with the name of the site, date, time, etc. in an Excel file
'