Safety measures
1. Be sure to read this manual carefully before using this instrument.
2. Instrument operators should have general knowledge of the use of electrical equipment or instruments.
3. The instrument can be used both inside and outside the house, but it should be used in places such as rain,
corrosive gas, excessive dust, high temperature and direct sunlight.
4. Instruments should avoid severe vibration.
5. The maintenance, nursing and adjustment of the instrument should be carried out by professional personnel.
6. Before any connection, the instrument ground terminal must be reliably connected with the earth by grounding cable.
7. Because the test equipment produces high voltage, the tester must strictly abide by the safety operation rules to prevent others from contacting high voltage components and circuits. Personnel directly engaged in testing must fully understand the high-voltage test circuit and the operating points of the instrument. Non-testers must stay away from the high-voltage test area, which must be clearly indicated by fences or ropes, police signs, etc.
8. The adjustment, maintenance and maintenance of the instrument must be carried out without power-up. If power-up is necessary, the operator must be very familiar with the high-voltage dangerous parts of the instrument.
9.It has the function of low voltage shielding for reverse wiring.
10. When the safety pipe is damaged, it is necessary to ensure that the same insurance is replaced. It is forbidden to replace different types of insurance or to use the insurance directly by short circuit.
11. When the instrument fails, turn off the power switch and wait for one minute before checking.
Performance characteristics
1. The instrument uses Fourier transform digital filtering technology to measure capacitance, dielectric loss and other parameters. The test result has high precision and is easy to realize automatic measurement.
2. The instrument adopts frequency conversion technology to eliminate 50Hz power frequency interference in the field. Even in the environment of strong electromagnetic interference, reliable data can be measured.
3. It is easy to operate with full touch LCD. Full touch LCD screen, super full graphics operation interface, each process is very clear, operators can use without additional professional training. The whole process can be measured by touch.
4. Storage data: It is equipped with a calendar chip and a large-capacity memory, which can save the test results at any time, view the historical records at any time, and print out. The current time and storage time can be displayed and printed at any time.
5. Scientific and advanced data management: Instrument data can be exported through U disk, and can be viewed and managed on any PC by special software.
6. The instrument is easy to operate and the measurement process is controlled by microprocessor. As long as the appropriate measurement mode is selected, the measurement of data can be completed automatically under the control of microprocessor.
7. Integrated model, with standard capacitor and high voltage power supply, is convenient for field test and reduces field wiring.
8. The instrument has high accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, only standard oil cup and special testing line are needed to realize oil dielectric loss measurement.
9、Can do AC voltage withstand test. It is convenient for PT and CT to do AC voltage withstanding test twice and 400V low voltage system to do voltage withstanding test.
10. It can identify the frequency of external high-voltage power supply from 40Hz to 70Hz, and allow large capacity and high voltage dielectric loss test with power frequency power supply or series resonant power supply.
11. With a thermal printer, it can print out, with a calendar clock, to facilitate users to produce test reports, with U disk output.
12. With computer interface. A computer can control 32 instruments, which can be integrated into an integrated high-voltage test vehicle to realize measurement, data processing and report output.
13. Grounding protection function. When the instrument is not grounded or grounded badly, the instrument does not enter the normal procedure and does not output high voltage. Overcurrent protection function, the instrument will not be damaged when the sample is short-circuit or breakdown.
14. Electric shock protection function. When the instrument operator accidentally electric shock, the instrument will immediately cut off the high voltage to ensure the safety of the test personnel.
Technical Indicators
1、Accuracy:Cx ±(reading×1%+1pF)
tgδ ±(reading×1%+0.00040)
2、Anti-interference index：Frequency conversion anti-interference, in 200% interference can still achieve the above accuracy
3、Capacitance range：internal high voltage 3pF~60000pF/10kV 60pF~1μF/0.5kV
external high voltage 3pF~1.5μF/10kV 60pF~30μF/0.5kV
Resolution maximum to 0.001pF, 4 significant digits
4、tgδ range：No limitation, resolution 0.001%, capacitance, inductance, resistance can be automatically identified
5、Test current range：5μA~5A
6、Internal high voltage：voltage setting range 0.5~10kV
maximum output voltage 200mA
voltage lifting mode voltage setting arbitrarialy
test frequency single frequency set at will( 40-70Hz).
Automatic dual variable frequency set at will (from 50±0.1Hz to 50±10Hz)
Automatic dual variable frequency set at will (from 60±0.1Hz to 60±10Hz)
frequency resolution ±0.01Hz
7、External high voltage：Maximum test current 5A, power frequency or variable frequency 40-70Hz, during
positive connection
Maximum test current 10kV/5A, power frequency or variable frequency 40-70Hz, during reverse connection
9、Measuring duration：About 40s, depending on measuring method
10、Input power ：220V AC, 50Hz ± 1%
11、Computer interface：Standard RS232 interface
12、Pinter：mini-type thermal printer
13、Ambient temperature：-10℃~50℃
14、Relative humidity：<90%
15、Dimensions：460×360×350mm
16、Weight：28kg
