Megger Power Transformer Test Van

• Power supply: 100-240 V, 50-60 Hz, or three-phase (optional)
• Built-in power generator (optional): TravelPower: 5 kVA and higher
• Test leads: 30 m (optionally motorized)
• Insulation testing (IR, DAR, PI, DD, SV)
• Test voltage, DC: up to 5, 10, or 15 kV
• Range of measurement: 100 kOhm…15 TOhm
• Charging current: 2 mA, 6 mA (short circuit)
• Noise immunity: 8 mA
• Capacitance and dissipation factor (tan δ)
• Test voltage, AC : 0-12 kV
• Test current (at 12 kV): 300 mA (4 minutes), 100 mA (continuous)
• Test frequency range: 45-70 Hz (12 kV), 15-400 Hz (4 kV), 1-500 Hz (250 V)
• Measurement range of dielectric losses tan δ and capacitance : 0-100 (0-10,000%), (max. resolution 0.001%)0 -100 μF, (max. resolution 0.01 pF)
• Individual temperature correction of tan δ results from 5°C to 50°C insulation test temperature to 20 °C reference
• Noise immunity Electrostatic:15 mA, Electromagnetic 500 μT, at 50 Hz

Winding resistance and OLTC

• Core de-magnetization: Automatic
• Test current: up to 10 A (optional up to 50 A)
• Measurement range: 1 μOhm – 2 kOhm
• Accuracy : +/- 0,25%

Turns ratio and vector group

• Excitation voltage: up to 80 V
• Ratio measurement range: 0,8 – 45000
• Phase deviation: +/-90°
• Accuracy : +/-0,1%… +/- 0,3%
• No-load and short-circuit loss power (optional)
• 3-phase power multimeter : 0-650 V, 0-100 A, 10-1000 Hz, 0-100 kW
• 3-phase current regulating autotransformer: up to 16 A
• Voltage withstand testing (optional)
• AC 50 Hz test voltage : 0…100 kV
• DC test voltage : 0…70 kV
• Load capacitance: 0,01-1,9 nF
• Leakage current measurement: up to 100 mAMax.
• power consumption: 20 kVA

Frequency Response Analysis (optional)

Moisture in cellulose assessment (optional)

• Oil dielectric strength test set (optional): up to 100 kV
• Control & data acquisition & reporting: PowerDB, LabTransControl
• Basic operating system: WIN 7
• Interface: RS 232, USB, Ethernet
• Uninterruptable power supply for industrial PC: 7 min