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HVTest HTFA-107 Manual

Ct pt analyzer
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Dear Client,
Thank you for purchasing our HTFA-107 CT PT Analyzer. Please
between your purchase equipment and its instruction manual. You can
find the changes in the appendix. Sorry for the inconvenience. If you
power outlet, they will cause electric spark. PLEASE CAUTION RISK OF
ELECTRICAL SHOCK!
read the manual in detail prior to first use, which will help
you use the equipment skillfully.
Our aim is to improve and perfect the company's
products continually, so there may be slight differences
have further questions, welcome to contact with our
service department.
The input/output terminals and the test column
may bring voltage, when you plug/draw the test wire or
1

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Summary of Contents for HVTest HTFA-107

  • Page 1 Dear Client, Thank you for purchasing our HTFA-107 CT PT Analyzer. Please read the manual in detail prior to first use, which will help you use the equipment skillfully. Our aim is to improve and perfect the company's products continually, so there may be slight differences between your purchase equipment and its instruction manual.
  • Page 2  SERIOUS COMMITMENT All products of our company carry one year limited warranty from the date of shipment. If any such product proves defective during this warranty period we will maintain it for free. Meanwhile we implement lifetime service. Except otherwise agreed by contract. ...
  • Page 3 Do not operate this product when covers or panels removed. Use Proper Fuse Only use the fuse with type and rating specified for the product. Avoid Touching Bare Circuit and Charged Metal Do not touch the bare connection points and parts of energized equipment.
  • Page 4 Contents Preface ....................5 Chapter I. Major Test Functions and Technical Parameters .....6 Chapter II. Panel Illustration ..............7 Chapter III Operation Mode ..............9 ANNEX ....................18...
  • Page 5 Preface CT/PT TESTER is mainly used for field testing of P class CT and PT. The test items mainly include excitation characteristic, transformation ratio, polarity, Degauss, 5 ％ and 10 ％ error curves, secondary circuit check, withstand test of power frequency alternating current and secondary load.
  • Page 6 Chapter I. Major Test Functions and Technical Parameters 1. Function Table I. Current Transformer (CT） II. Voltage Transformer (PT） 1. Magnetization Curve 1. Excitation Characteristic Test 2. Transformation Ratio Test 2. Transformation Ratio Test 3. Polarity 3. Polarity 4.5％ and 10％ error curve 4.
  • Page 7 Chapter II. Panel Illustration Figure 1 Note of Panel: 1—— Grounding 2——USB 3——Printer 4——Monitor 5—— Controller 6——Output (turned left for on and right for off.) 7——Current Output Terminal 8——Current Input Terminal(Connected to Secondary Side for CT Transformation Ratio Test) 9——Excitation Characteristic Power Output/The Port of Actual Secondary Load Test 10——Connected to Primary Side for PT Transformation Ratio Test 11——Connected to Secondary Side for PT Transformation Ratio Test 12——Power Switch...
  • Page 8 Figure 2(CT Excitation Connection Figure 3(PT Excitation Connection Diagram) Diagram) Figure 5 (CT Connection Diagram Figure 4 (CT Current Output for Transformation Ratio, Polarity) Connection Diagram) Figure 6(PT Connection Diagram for Transformation Ratio, Polarity )
  • Page 9 Figure 7 (CT Connection Diagram for Figure 8 (PT Connection Diagram for Withstand Test of Alternating Current) Withstand Test of Alternating Current) Chapter III Operation Mode 1. Controller The controller has three states: “Left Rotation”, “Right Rotation” and “Pressing down”. It is used to move the controller, input data and select the test item.
  • Page 10 Voltage: The setting range for output voltage is 0～1000V ​ ​ for the test project, Not to be used to test, The specific content to see Appendix I. The function of calibration: mainly used to view the tester output voltage and current values 3.1.1.Test: After ensuring the correct wiring, turn on the output, press the “Test”...
  • Page 11 Figure 13 Figure 14 Figure 15 Figure 16 Setting of error curve CT secondary side impedance value. ： I-sn ：CT secondary side rating current (1A or 5A). Kalf ： As for protection type CT (5P10 20VA)， “10”is Kalf ： As for protection type CT (5P10 20VA)， “10”is ALF CT secondary side resistance value.
  • Page 12 3.2. PT Excitation Characteristic Test (with connection mode shown in Figure 3) Move the controller to Excitation ,to enter PT Test interface(Figure 17) U-sn : 100V、100/√3V、100/3V、150V、220V. Current : the setting range for output current is 0～20A (It is usually set to be 1A) U-sn Multiple:MAX voltage of the pt excitation Warning: the zero terminal of primary winding of the voltage transformer shall be grounded before the test, or high voltage will be output.
  • Page 13 Figure 19 Figure 20 5. AC Current:Current Output (connection mode shown in Figure 5) Set Currrent: 0～600A, Selection of output current (Figure 20): maximum output current from P1 and P2 terminals of the tester. With the changing of the operating voltage, the actual output current will change with a deviation of 15%, which won’t affect the application.
  • Page 14 During the test process, the controller will be displayed on the ““Test” item and flashes constantly unless escaped from the automatic test interface when the test is completed or the test is interrupted manually through pressing down controller. After the completion of the test, select “Print”、“Save”or “Print”.
  • Page 15 S2 and connect them to the tester voltage output terminal K2, while the other voltage output terminal of the tester K1 is connected to the transformer shell. move the controller to Test to increase the voltage and main it for 60S. If the flashover phenomenon occurs in the test, then CT secondary insulation against ground is deemed to be unqualified.
  • Page 16 and press down "Copy To", then the tester start dumping the data to the USB flash disk. After that the screen will display “success”. Warning: it is strictly forbidden to pull out the USB flash disk before the completion of the unloading, or the USB flash disk or the equipment will be damaged permanently.
  • Page 17 Figure 26 Figure 27...
  • Page 18 ANNEX Annex 1.The method of"Calibration" test (for example to CT) Figure 28 Figure 29 Figure 30 Move the controller to“CT”or“PT”, Select Verify to enter Verify test interface (Figure 28), Set Voltage: 0.1A ～ 5A. Set Current: 1V～1000V. The connection mode of Voltage Calibration is as shown in Figure 29, After the completion of the setting, turn on the output, and select “Test”...
  • Page 19 Annex 2. Replacement of paper. Cut off the power supply, press down the spring button on the printer, open the panel of the printer and take out its reel. Put the new paper roll in the printer showing the smooth surface, take out a small amount of paper and press down the panel. If the printing condition is normal, but there are no words or curve on the paper, the paper is installed inversely.
  • Page 20 If 10％ error doesn’t conform to the requirements, the general measures taken are: Increasing the section area of the secondary cable area (decreasing the secondary impedance) Connecting the current transformers of the same type and transformation ratio in series(reducing the excitation current of the transformer ) Using the winding with high excitation characteristic (increasing the excitation impedance) Increasing the transformation ratio of the current transformer (increasing the excitation impedance)

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