China Htct-201 Hv CT Ratio Tester, Find details about China CT Ratio Tester, Hv CT Ratio Tester from Htct-201 Hv CT Ratio Tester
Function | On-line testing for current, ratio, polarity, phase and leakage current of primary/secondary circuit of high/low voltage current transformer; on-line testing for current and ratio between two sides of the transformer. |
Power source | DC6V alkaline dry battery(1.5V AAA×4) keeps a continuous work for 20 hours |
Test way | Clam-on CT |
Transmission way | Wireless transmission with linear transmission distance about 30m |
Display mode | LCD: 128dots×64dots; Blue screen, backlight, suitable for dark places |
LCD dimension | Display area: 44mm×27mm |
Tester size | Width × Height× Thickness: Main engine: 75mm×170mm×30mm HV Current Clamp:76mm×255mm×31mm LC Current Clamp:175mm×70mm×38mm |
Clamp Dimension | HV Current Clamp:φ48mm LC Current Clamp: φ25×30mm |
Sampling speed | 3 times/second |
Measurement range | High voltage detector: 0.1mA~1000A Low-voltage current clamp: 0.01mA~10A |
Resolution | High voltage detector: 0.1mA Low-voltage current clamp: 0.01mA |
Gearing | Automatic gearing |
Measuring accuracy of the primary circuit (23ºC±3ºC,<80%RH) | 0.0mA~299mA: ±1%±3dgt |
0~10.0A: ±1.0%±5dgt | |
10.0A~49.9A: ±2%±5dgt | |
50A~199.9A: ±3%±5dgt | |
200A~600A: ±4%±5dgt | |
601A~1000A: ±5%±5dgt | |
Measuring accuracy of the secondary circuit | 0~10A: ±0.5%±5dgt (23ºC±3ºC,<70%RH) |
Ratio | Three kinds of ratios:( actual measurement of primary/secondary circuit; transformation on the basis of secondary circuit bearing current 5A; transformation on the basis of 10kV-YY of 10kV/380V transformer and the Max. ratio is 1:10 million (1.0K7) |
Data storage | 3,000 sets, press HOLD to hold the data ,number and store automatically(power failure or battery replacement will not cause data missing) |
Line voltage | Test for lines bearing voltage below 60kv (insulating rods with five knots must be used) |
Data hold | Press HOLD to hold the data, and sign of "Hold" appears; press it again, holding will be canceled. |
Data search | Press HOLD and POWER to enter the mode of data search. |
Overflow display | Outrange overflow: "OL A" appears |
No signal instruction | When the main engine does not receive transmit signals, present "No Signals" |
Automatic shutdown | 15 minutes after starting up, the tester will shut down automatically |
Battery voltage | When battery voltage is below 4.8v, signs will remind you of replacement |
Weight | Main engine: about 240g (including battery) High voltage detector: about 335g (including battery) Low-voltage current clamp: 150g Total weight: 5kg(including insulation rod and battery) |
External interference | No super strong electromagnetic field; no same frequency interference of 433 MHz and 315 MHz |
Working temperature and humidity | -25ºC~45ºC; 80%Rh |
Storing temperature and humidity | -10ºC~60ºC;70%Rh |
Insulation rod size | φ32mm, 1m/know (standard configuration: five knots), extendable |
Length of the lead of LV current clamp | Standard: 2 meters |
Insulation strength | High voltage detector: AC100kV/rms(section between the fifth insulation rod and the clamp core of high-voltage current clamp) Main engine and low-voltage current clamp: AC1000V/rms |
Structure | Anti-drip II(high voltage detector) |