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l Technical Features
l Variable-Frequency Test Method Excitation characteristic of CT/PT and 10% error curve are tested through advanced variable-frequency test method. At most 180V AC voltage and 5A AC current are needed for CT test whose knee point reaches up to 30kV.
l Boost Current Function With current booster, the maximum current can reach 150A.
l Full Test Function Steady and transient state characteristic tests of various types of CT/PT, including excitation, ratio, phase, polarity, secondary winding resistance, burden, ratio error and phases displacement can be tested.
l Automatic Display Parameters such as knee point current and voltage, 10% error curve, 5% error curve, accuracy limit factor (ALF), factor of safety (FS), secondary winding time constant (Ts), remanence coefficient (Kr), accuracy class, saturated and unsaturated inductance are displayed automatically.
l The device can test and calculate CT/PT according to different standards such as GB1208-2006(IEC60044-1) and GB16847-1997(IEC60044-6)
l Friendly and beautiful Chinese graphical interface, 5.7”Lens CT-VTR graphic LCD, visible in the sun.
l Photoelectrical rotary mouse is available for operation, which is convenient, speedy and easily-grasped.
l The device can store 3000 groups of test data which would not be lost if the device loses its power. The data can be displayed and analyzed after the test, or transferred to PC through USB disk and produce a Word file report.
l With printer integrated, test report is printed automatically.
l Easy to test, all the tests are using the same wire connection except the load test.
l Portable, weight < 9Kg。
l Main Technical Parameters
l Output Voltage: 0~180V (RMS)
l Output Current: 0~12A，peak 36A
l Voltage test accuracy: ±0.2%
l CT Ratio test range: 1~10000
l PT Ratio test range: 1~10000
l Ratio test accuracy: ±0.2%
l Phase test accuracy: ±5’, Resolution: 0.5’
l Secondary winding resistance test range: 0.1～300Ω Resolution: 0.2mΩ Accuracy: 0.2%±2 mΩ
l AC load test: 0～300VA Resolution: 0.002VA Accuracy: 0.2%±0.02 VA
l Current booster output: 0~150A
l Input power voltage: AC220V±20%, 50HZ
l Conditions: temperature: -10℃~50℃, humidity: ≤90%
l Dimensions: 340mm×300mm×150mm
l Weight: <9kg
l Function and Application
A device designed for tests of CT/PT as follows:
l Excitation characteristic test
l Ratio test
l Phase and polarity test
l Various kinds of CT of the ratio table and phase displacement table for different primary current
l CT Secondary winding resistance test
l CT Secondary burden test
l CT Transient state test and analysis
l CT Current boosting test
l Measure a various kinds of CT and PT, including protection CT, measurement CT, TP -transient state CT, excitation saturation CT of 30KV voltage, Bushing type CT, PT of each voltage level.
l Measurement for knee voltage and current, 10%(5%) error curve, ALF, FS, Ts, Kr, accuracy class, saturated and unsaturated inductance
