Low Voltage CT Ratio Tester Current Transformer Detector with Ratio Range 1～9999

NOTE: Batteries are not included during the shipment!

Product Description

      CT ratio tester of low voltage current transformer can be widely used in 380/220 volt power system. The instrument is composed of main engine, primary current clamp CT1 and secondary current clamp CT2, which can conveniently and quickly realize online on-site detection of current transformer in the metering device and measurement of current and leakage current in 380/220 volt power system. The transformer ratio, Angle difference, phase difference and polarity in actual operation can be accurately tested without power failure.

Product Feautures

☂ Online test the leakage current, current, ratio, ratio difference, Angle difference, phase difference and polarity of the primary and secondary circuits of the current transformer in the 380V/220V distribution system.

☂ Variable ratio measurement range: 1 ~ 9999

☂ Variable ratio resolution: 0.1

☂ Measuring accuracy of primary current clamp:

☂ Measuring range: 0.0A ~ 800A; Resolution: 0.1A; Accuracy: ±0.5%FS

☂ Measuring accuracy of secondary current clamp:

☂ Measuring range: 0.00mA ~ 5A; Resolution: 0.01mA; Accuracy: ±0.5%FS

☂ Primary current pliers Pliers size: 80mm x 80mm

☂ Secondary current pliers Pliers mouth size: φ8 mm

Technical Specification

FunctionRangeAccuracyResolution
Variable Ratio 1～9999 ——0.1
Angle difference  0～360° ±3°1°
Primary current0.0A～800A±0.5%FS0.1A

Secondary current0.00mA～5A±0.5%FS0.01mA


Other parameters


☀ Power: Test the current, ratio and Angle difference of the primary and secondary circuits of the low-voltage current transformer, and judge the polarity and phase difference

☀ Automatic shutdown: About 15 minutes

☀ Battery specification: 7# alkaline dry battery (1.5V×4)(NOT INCLUDED)

☀ Battery voltage: When the battery voltage is lower than 4.8V, the low voltage symbol is displayed to remind you to replace the battery

☀ Overflow display: Overrange overflow function: "OL A" symbol display

☀ Sampling rate: 3 times/second

☀ Storage data: 3000 groups

☀ Primary current clamp size: clamp size: 80mm×80mm; Dimensions: 76mm×255mm×31mm;

☀ Secondary current clamp size: clamp mouth size: Φ8mm; Overall dimensions: 137mm×40mm×19.5mm

☀ Main machine dimensions: 75mm×170mm×30mm

☀ Current clamp lead: length: 2m

☀ Instrument quality: about 1000g

☀ Insulation strength: AC3700V/rms between the clamp core and the housing