1、 Performance characteristics of KF-6208B anti-interference dielectric loss tester

1. The instrument adopts Fourier transform digital filtering technology to measure capacitance, dielectric loss, and other parameters. The test results have high accuracy, making it easy to achieve automated measurement.

2. The instrument adopts frequency conversion technology to eliminate on-site 50Hz power frequency interference, and reliable data can be measured even in strong electromagnetic interference environments.

3. Using a full touch ultra large LCD display, the operation is simple. Full touch LCD display screen, super comprehensive graphical operation interface, every process is very clear and understandable, and operators can use it without additional professional training. The entire measurement process can be completed with a gentle touch.

4. Storage data: Equipped with a calendar chip and large capacity memory, it can save detection results at any time, view historical records at any time, and print and output. 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 a USB flash drive, and can be viewed and managed on any PC through dedicated software.

6. The instrument is easy to operate, and the measurement process is controlled by a microprocessor. As long as the appropriate measurement method is selected, the data measurement can be automatically completed under the control of the microprocessor.

7. Integrated model, equipped with standard capacitors and high-voltage power supply, convenient for on-site testing and reduces on-site wiring.

8. The instrument has high measurement accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, only a standard oil cup and a dedicated testing line are needed to achieve oil dielectric loss measurement.

9. Equipped with reverse wiring low-voltage shielding function, C11 can be measured for dielectric loss without disconnecting the 10kV reverse wiring when the 220kV CVT bus is grounded

10. Capable of conducting AC voltage withstand tests. Convenient for PT and CT secondary AC withstand voltage testing, and 400V low-voltage system withstand voltage testing.

11. Capable of identifying the frequency of external high-voltage power supply from 40Hz to 70Hz, allowing for high-capacity and high-voltage dielectric loss testing using power frequency power supply or series resonant power supply.

12. Equipped with CVT testing function, it can achieve self-excited testing of CVT, and can set four protection limits for high voltage/current and low voltage/current to ensure personal and equipment safety.

13. When testing CVT, not only can the capacitance and dielectric loss values of C1 and C2 be automatically tested, but also the total capacitance and dielectric loss values of the CVT equipment can be tested

14. Equipped with a thermal printer for printing and output, with a calendar and clock for easy access to test reports, and a USB drive for output.

15. Equipped with computer interface. One computer can control 32 instruments and integrate them into a comprehensive high-voltage test vehicle to achieve measurement, data processing, and report output.

16. Grounding protection function: When the instrument is not grounded or poorly grounded, it will not enter the normal program and will not output high voltage. The overcurrent protection function ensures that the instrument is not damaged in the event of a short circuit or breakdown of the test sample.

17. Electric shock protection function: When the instrument operator accidentally gets an electric shock, the instrument will immediately cut off the high voltage to ensure the safety of the test personnel

2、 Technical specifications of KF-6208B anti-interference dielectric loss tester

Accuracy: Cx: ± (reading x 1%+1pF)

tgδ: ± (reading x 1%+0.00040)

Anti interference index: Frequency conversion anti-interference, can still achieve the above accuracy under 200% interference

Capacity range: Internal applied high voltage: 3pF~60000pF/10kV 60pF～1μF/0.5kV

External high voltage: 3pF~1.5 μ F/10kV 60pF～30μF/0.5kV

Resolution: up to 0.001pF, 4 significant digits

Range of TG δ: unlimited, resolution 0.001%, automatic identification of three types of samples: capacitance, inductance, and resistance.

Test current range: 5 μ A to 5A

Internal high voltage: Set voltage range: 0.5-10kV

Maximum output current: 200mA

Voltage rise and fall method: The voltage can be set arbitrarily. For example, 5123V.

Test frequency: 40-70Hz, single frequency can be set arbitrarily. For example, 48.7Hz

Automatic dual frequency conversion can be set freely from 50 ± 0.1Hz to 50 ± 10Hz.

Automatic dual frequency conversion can be set freely from 60 ± 0.1Hz to 60 ± 10Hz.

Frequency accuracy: ± 0.01Hz

External high voltage: maximum test current of 5A when connected positively, frequency or variable frequency 40-70Hz

The maximum test current during reverse wiring is 10kV/5A, with a frequency range of 40-70Hz for power frequency or variable frequency

CVT self-excited low-voltage output: output voltage 3-50V, output current 3-30A

Measurement time: about 40 seconds, depending on the measurement method

Input power supply: 180V~270VAC, 50Hz ± 1%, powered by mains or generator

Computer interface: standard RS232 interface, USB port (automatic USB storage for data).

Printer: Micro thermal printer Environment temperature: -10 ℃~50 ℃ Relative humidity:<90%

Dimensions: 500mm * 377mm * 330mm Instrument weight: 28kg