Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Wuhan Guide Manuals
  4. Measuring Instruments
  5. HTFA-107A
  6. Manual

Wuhan Guide HTFA-107A Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
Dear Client,
Thank you for purchasing our HTFA-107A CT PT Analyzer. Please read
between your purchase equipment and its instruction manual. You can find the
changes in the appendix. Sorry for the inconvenience. If you have further
RISK OF ELECTRICAL SHOCK!
Company Address:
T4， No. 1, High-tech 2 Road， East Lake High-tech Development Zone，
Wuhan
Sales Hotline: 86-27- 87492243
After Service Hotline: 86-27- 87459656
Fax: 86-27- 87803129
E-mail: whhuatian@163.com
Website: www.whhuatian.com
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
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 power
outlet, they will cause electric spark. PLEASE CAUTION
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the HTFA-107A and is the answer not in the manual?

Questions and answers

Related Manuals for Wuhan Guide HTFA-107A

Summary of Contents for Wuhan Guide HTFA-107A

  • Page 1 Dear Client, Thank you for purchasing our HTFA-107A 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 touch the bare connection points and parts of energized equipment. Do Not Operate with Suspicious Failures If you encounter operating failure, do not continue. Please contact with our maintenance staff. Do Not Operate in Wet/Damp Conditions. Do Not Operate in Explosive Atmospheres. Ensure Product Surfaces Clean and Dry.
  • Page 4 Contents Preface ........................ 5 Chapter I. Major Test Functions and Technical Parameters ......6 Chapter II. Panel Illustration ................7 Chapter III Operation Mode ................10 ANNEX ......................20...
  • 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(current type) 8—— Current Input Terminal(Connected to Secondary Side for CT Transformation Ratio Test)(current type) 9——...
  • Page 8 Figure 2(CT Excitation Connection Figure 3(PT Excitation Connection Diagram) Diagram) Figure 5.1 (CT Connection Figure 4 (CT Current Output Diagram for Transformation Ratio, Connection Diagram) Polarity)(current type) Figure 7 (CT/PT Actual Secondary Load Figure 6(PT Connection Diagram for Connection Diagram) Transformation Ratio, Polarity)
  • Page 9 Test line zero Figure 8 (CT/PT Resistance Figure 9 (CT/PT Connection Connection Diagram) Diagram) Figure 10 (CT Connection Diagram Figure 11 (PT Connection Diagram for for Withstand Test of Alternating Withstand Test of Alternating Current) Current) Figure 5.2 (CT Connection Diagram for Transformation Ratio, Polarity)(voltage type)
  • Page 10 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. Figure 12 (CT Main Menu) Figure 13 (PT Main Menu) 2.
  • Page 11 Figure 14 Figure 15 3.1.2. Excitation Characteristic Function Items (as shown in Figure 15) All operating function items on the interface are as following:  Print: select “Print” item to print the excitation curve graphics and data.  Data: Select “Data” item and the screen will display the list of excitation characteristic voltages and currents (shown in Figure 16).
  • Page 12 Figure 18 Figure 19 Setting of error curve CT secondary side impedance value. ： I-sn ：CT secondary side rating current (1A or 5A). As for protection type CT (5P10 20VA)， “10”is ALF ： ： CT secondary side resistance value. Calculate the 5% error curve data and display the error curve. ：...
  • Page 13 Figure 20 Figure 21 4. Fast Test 4.1. CT Fast Test The connection mode is as shown in Figure 5.2. Parameter Setting: as shown in Figure 21, Current:the setting range for output current is 0～20A (It is usually set to be 1A) Voltage: The setting range for output voltage is 0～2500V I-sn：1A or 5A.
  • Page 14 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. After the completion of the setting, turn on the output, and select “Test” item. When the output current of the equipment reaches the setting value, it will be held for a period of time (the holding time is about 10MIN for the setting current less than 300A,between 300A and 500A the holding time is about 2MIN, the holding time is about 3S for the setting current greater than 500A.) During the test process, the controller will be displayed on the...
  • Page 15 6.2 PT Transformation Ratio and Polarity Test (connection mode shown in Figure 6) Parameter Setting: as shown in Figure 25, U-p : Setting range of output voltage: 0～2500V. U-s： 100V、100/√3V、100/3V、150V、220V. After checking the correct wiring, Turn on the output. Move the controller to start item of the transformation ratio and polarity test menu and press down the controller to start the test.
  • Page 16 Figure 26 Figure 27 Figure 28 Figure 29 7.2 PT Error Test (connection mode shown in Figure 6) Parameter Setting: as shown in Figure 28, U-pn : 0～2500V. U-sn： 100V、100/√3V、100/3V、150V、220V. Rated Load ：The capacity of analyzer. Actual Load ：According to the rated load setting,automatic calculation of load and light load of two kinds of state values (light load to full 25%).
  • Page 17 8.1. CT Load Test The connection mode is as shown in Figure 7. Parameter Setting: as shown in Figure 30, Line-Res：Set the resistance value of the test line. I-sn：1A or 5A. Move the controller to“CT”, Select Load to enter CT load test interface.Select Test key to start the test and the test result will be displayed automatically.
  • Page 18 displayed automatically. According to the actual situation, select “Print”、“Save” 、“Print” or“Back”. 9.2. PT Resistance Test The same to CT resistance test. Figure 32 Figure 33 10.AC Hipot (Voltage Withstand Test of Alternating Current) Move the controller to“CT”or“PT”, Select AC Hipot to enter AC Hipot test interface (Figure 33), The users can set the AC output voltage to be 0～2500V according to their requirements.
  • Page 19 unqualified. If the leakage current is too much, the equipment will automatically return to zero for protection. 11．Query 11. 1. Record Inquiry Move the controller to“CT”or“PT”, Select Index to enter Index interface (Figure 34). According to this interface, you can view the test results: “Excitation”、“Load”、“Ratio” 、 “Error”、...
  • Page 20 ANNEX Annex 1.The method of"Calibration" test (for example to CT) Figure 37 Figure 38 Figure 39 Move the controller to“CT”or“PT”, Select Verify to enter Verify test interface (Figure 37), Set Voltage: 0.1A ～ 5A. Set Current: 1V～2500V. The connection mode of Voltage Calibration is as shown in Figure 38, After the completion of the setting, turn on the output, and select “Test”...
  • Page 21 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 22 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)

This manual is also suitable for:

Uhv-107a