Mains Power Supply

• Connection: according to IEC/EN60320-1;
  UL498, CSA 22.2
• Input voltage: 90 – 264 V AC
• Input frequency: 50 or 60 Hz

Output AC Source

• Up to 2000 V AC (Ratio and saturation test)
• 1 A or 5 A AC (CT burden test)
•  Up to 110 V AC (VT/CVT burden test)

Output DC Source

• 500 V or 1000 V DC (Insulation resistance
• test)
• Up to 5 A DC (Winding resistance test)
• Turns Ratio
• Measurement range: 0.8 – 20000
• Resolution: 5 digits
• Typical accuracy:
  0.8 – 2 000: ±0.02%
  2 000 – 5 000: ±0.03%
  5 000 – 20 000: ±0.05%

Phase Angle

• Measurement range: 0 – 360º
• Resolution: 0.01º
• Typical accuracy: ±0.05º

Saturation (Knee Point)

• Voltage measurement range: 0 – 2100 V
• Resolution: 0.1 V
• Typical accuracy:
  ±0.05% @ ≥ 5 V
  ±0.5% @ < 5 V
• Current measurement range: 0 – 1 A / 10 A
• Resolution:
  0.1 mA @ < 1 A
  1 mA @ ≥ 1 A
• Typical accuracy: ±(0.05% rdg +0.05% FS)

Winding Resistance (CT, VT, CVT Secondary)

• Measurement range: 0 – 999.9 Ω
• Resolution: 4 digits
• Typical accuracy: ±(0.2% rdg + 2 mΩ)

​Winding Resistance (VT Primary)

• Measurement range: 0 – 99.99 kΩ
• Resolution: 4 digits
• Typical accuracy: ±(0.2% rdg + 2 Ω)

Insulation Resistance

• Measurement range: 0 – 20 GΩ
• Range / resolution:
  0 – 99.99 MΩ 0.01 MΩ
  100.0 – 999.9 MΩ 0.1 MΩ
  1000 – 20000 MΩ 1 MΩ
• Typical accuracy:
  ±(3% rdg + 0.2 per GΩ) @ 1000 V DC
  ±(3% rdg + 0.4 per GΩ) @ 500 V DC

Burden (CT)

• Voltage measurement range: 0 – 45 V
• Resolution: 0.001 V
• Typical accuracy:
  ±0.05% @ ≥ 5 V
  ±0.5% @ < 5 V
• Current measurement range: 0 – 1 A / 7 A
• Resolution: 0.001 A
•  Typical accuracy: ±(0.05% rdg +0.05% FS)

Burden (VT, CVT)

•  Voltage measurement range: 0 – 300 V
• Resolution: 0.001 V
• Typical accuracy:
  ±0.05% @ ≥ 5 V
  ±0.5% @ < 5 V
• Current measurement range: 0 – 1 A / 7 A
• Resolution: 0.01 mA
• Typical accuracy: ±(0.05% rdg +0.05% FS)

Display

• 10.1” graphical touch screen display

PC Interface

• USB
• Ethernet

Internal Memory

• SD card 32 GB

Environmental Conditions

•  Operating temperature:
  -20 ºC – +55 ºC / -4 ºF – +131 ºF
• Storage & transportation:
  -40 ºC – +70ºC / -40 ºF – +158 ºF
• Humidity: 0% – 95% relative humidity, noncondensing

Dimensions and Weight

• Dimensions (W x H x D): 505 x 257 x 409 mm / 19.9 x 10.1 x 16.1 in
• Weight: 21.4 kg / 47.2 lbs

Printer

• Built-in thermal printer
• Paper width 112 mm / 4.4 in
• Operating temperature: -10 ºC – +60 ºC / +14 ºF – +140 ºF
•  Storage temperature: -20 °C – +70 °C / -4 °F – +158 °F
• Humidity: 10% – 85% relative humidity,non-condensing

Applicable Standards

• Installation/Overvoltage category: II
• Pollution degree: 2
• Safety: LVD 2014/35/EU (CE Conform)
• Standard EN 61010-1:2010
• EMC: Directive 2014/30/EU (CE Conform)
• Standard EN 61326-1:2013

The new powerful DV Power Current and Voltage Transformer Analyzer CVA500 with a large 10.1-inch touch screen display represents an evolution testing technology that provides user-friendly and fast test execution of the full range of current transformer (CT), voltage transformer (VT), and capacitive voltage transformer (CVT) tests.

CVA500 simultaneously measures CT knee point, turns ratio, polarity, and winding resistance in all taps. The automated test feature performs all these measurements in one test, including CT demagnetization, insulation resistance, and burden test, without any operator intervention. This significantly reduces testing time and helps to avoid possible issues caused by operators.

The CT knee point (saturation) testing method uses the variable 50/60 Hz AC voltage (up to 2000 V). CVA500 applies a sinusoidal voltage at mains frequency (50 or 60 Hz) directly to the low-voltage CT terminals.

Application
The list of instrument application includes a full range of tests:

• Saturation curve and knee point for CTs
• Turns ratio, polarity, and phase angle tests for CTs, VTs, and CVTs
• Demagnetization
• Insulation resistance for CTs, VTs and CVTs
• Winding resistance for CTs, VTs and CVTs
• Burden test for CTs, VTs, and CVTs