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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.

SAFETY REQUIREMENTS

Please read the following safety precautions carefully to avoid

body injury and prevent the product or other relevant subassembly
to damage. In order to avoid possible danger, this product can only
be used within the prescribed scope.

Only qualified technician can carry out maintenance or repair

work.

--To avoid fire and personal injury:

Use Proper Power Cord

Only use the power wire supplied by the product or meet the

specification of this produce.

Connect and Disconnect Correctly

When the test wire is connected to the live terminal, please do

not connect or disconnect the test wire.

Grounding

The product is grounded through the power wire; besides, the

ground pole of the shell must be grounded. To prevent electric
shock, the grounding conductor must be connected to the ground.

Содержание HTJS-M

Страница 1: ...u can find the changes in the appendix Sorry for the inconvenience If you have further questions welcome to contact with our service department The input output terminals and the test column may bring...

Страница 2: ...In order to avoid possible danger this product can only be used within the prescribed scope Only qualified technician can carry out maintenance or repair work To avoid fire and personal injury Use Pr...

Страница 3: ...gs Do Not Operate without Covers 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...

Страница 4: ...ecurity Terms Warning indicates that death or severe personal injury may result if proper precautions are not taken Caution indicates that property damage may result if proper precautions are not take...

Страница 5: ...tors 9 VI Measuring method and principle 10 VII Wiring methods for common devices 11 VIII Introduction to instrument functions 15 IX Operation steps of instrument 16 X Notes for site test 18 XI Instru...

Страница 6: ...e capacity high test speed high precision automatic digitization and easy operation It adopts high power switching power supply which outputs 45Hz and 55Hz pure sine wave and automatically increase th...

Страница 7: ...nt and maintenance of the instrument should be conducted in a no power up state Jf power up is required the operator must be familiar with the high voltage hazardous components of this instrument very...

Страница 8: ...measure the capacitance and dielectric loss of C1 and C2 by at a time 7 GST measurement adopts ivddv technology and avoids unstable data provided by previous GST measurement 8 The instrument provides...

Страница 9: ...d articles Test current range 10 A 1A Internal HV Set voltage range 0 5 10kV Maximum output current 200mA Buck bust method continuous stepless regulation Test frequency 45 50 55 60 65Hz single frequen...

Страница 10: ...oltage power supply 10kV the HV is distributed into two branches one of which is supplied to internal reference capacitor CN Dielectric loss of this capacitor is very small and can be basically ignore...

Страница 11: ...f tested article Diagram 2 VII Wiring methods for common devices 1 Explanation for instrument leading out terminal HV HV terminal of measuring leading cable of instrument with dangerous voltage CX Inp...

Страница 12: ...capacitor internal HV HV core HV shell HV Shell Core l Shell UST E CN Core l 5 Hz I UN GND 2 4 GST external reference capacitor internal HV HV shell HV shell HV core HV GST E CN Shell Core l 5 Hz I U...

Страница 13: ...E UN 2 8 GST external reference capacitor external HV HVshell Core l Shell External HV max 10kV HV XC GST E CN Shell Core l 5 Hz E UN GND 2 9 CVT self exciting measurement Wiring of CVT self exciting...

Страница 14: ...kV press OK key and an icon will appear on left bottom of instrument screen It means that it will print automatically after testing Press the OK key again the icon will disappear It means that it must...

Страница 15: ...instrument functions The instrument panel is as shown in Diagram 3 Diagram 3 1 Cxsocket 2 Cnsocket 3 CVT1 4 CVT2 5 Power jack 6 Power switch 7 High voltage switch 8 Menu key 9 Printer 10 Display 11 R...

Страница 16: ...3 GST Insert the HV cable plug in the back door HV socket and fix the big red clamp on the other end on the HV terminal lead Suspend the small red clamp or connect it with shied Cx socket is needless...

Страница 17: ...0kV I UN tg 0 002 Testing 55 Diagram 7 Diagram 8 4 Testing Power on and place the cursor on testing item Press OK key for about 5 seconds to start testing It will show menus in testing process as show...

Страница 18: ...e or cable movement caused by wind may lead to poor contact 2 Poor ground connection Poor ground connection may cause instrument protection or wild data fluctuation Scrape the paint and rust at ground...

Страница 19: ...y When testing the tested article with reference capacitance the fully shielded plug should be used to eliminate the impact of additional stray capacitance If not the instrument accuracy cannot be rea...

Страница 20: ...ster Connect the reference loss tester with a shielded cable with plug If the accuracy of loss tester is unwarranted take a comparison method for detection It is suggested to take 2801 electric bridge...

Страница 21: ...The reason lies in that the measurement system is likely to distinguish different frequencies and the effect of selective frequency measurement can be explained by the following simple calculation Whe...

Страница 22: ...utomatic variable frequency and 50Hz equivalent The instrument takes two measurement points by two sides of interference frequency 50 Hz with the method of automatic variable frequency and then calcul...

Страница 23: ...ation if in the loop have poor contact or strike fire situation on the left side of the screen in the instrument will display and the number of discharge in general lower the number of electricity is...

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