■ Features

▲ VS-2801 current transformer field calibrator has a standard voltage transformer equivalent to the same transformation ratio of the current transformer under test, and its accuracy is level 0.05. The instrument has a built-in standard current transformer with the same transformation ratio. It is 0.05 level, which can accurately measure the transformation ratio and no-load error of the current transformer under test. Then combine the test results of impedance and admittance to calculate the error of the transformer.

▲ Adopt the different frequency power supply test close to the power frequency to prevent on-site power frequency electromagnetic radiation and series interference.

▲ It has the test functions of current transformer ratio polarity, secondary winding internal resistance, and DC resistance.

▲ Adopt 8-inch 1024×768 high-resolution large-screen TFT color LCD touch display, with user-friendly interface and operation design, using touch screen to assist operation, making operation more convenient and faster.

▲ The test data is automatically rounded and judged whether it is out of tolerance. The out-of-tolerance data is displayed in orange, and the out-of-tolerance is displayed in the lower right corner of the window. The data characteristics of the transformer are intuitive and clear.

▲At the same time, it can test the transformation ratio and polarity function of the voltage transformer.

▲ The instrument can blindly measure the transformation ratio of the transformer, and after the test result, the estimated transformation ratio is given.

▲ The large-scale memory can store up to 1000 pieces of field test data.

▲ Use RS232 or USB interface to connect to computer to print data.

▲ The charging time of the built-in battery is about 12-24 hours, and it can work continuously for more than 12 hours after being fully charged.

■ Technical parameters

▲ Error measurement part of current transformer

       The accuracy of the whole machine: 1/3 of the error limit of the measured current transformer

       Test range: 5A/5A~31500A/5A or 5A/1A~6300A/1A

▲ Working range of the current transformer under test: 1%～200%

▲ Secondary load: 2.5VA ～ 300VA, cosφ = 0.1 ～ 1.0

▲ The accuracy range of the current transformer under inspection: 1.0, 0.5, 0.5S, 0.2 and 0.2S

▲ Resistance and admittance measurement error ≤5.0%

▲ Measuring range: R: 0.00Ω～20.0Ω Y: 0.000mS ～100.0mS

▲ Voltage transformer calibrator part: transformation ratio test range: 1kV-500kV

▲ Power consumption of the instrument: 20VA

▲ Instrument accuracy level: 0.05S level