JSY-03 Full-Automatic Anti-Interference Dielectric Loss Tester 

1. The instrument adopts the complex current method to measure capacitance, dielectric loss, and other parameters. The test results are highly accurate and facilitate automated measurement.

2. The instrument uses frequency conversion technology to eliminate 50Hz power frequency interference on site, ensuring reliable data even in strong electromagnetic interference environments.

3. The instrument features a large LCD screen, and the test process is guided by Chinese menu prompts, making it intuitive and easy to operate.

4. The instrument is easy to operate; the measurement process is controlled by a microprocessor. Simply select the appropriate measurement mode, and the data measurement will be completed automatically under microprocessor control.

5. Integrated design with built-in standard capacitor and high-voltage power supply, convenient for on-site testing and reducing field wiring.

6. The instrument has high measurement accuracy and meets the requirements for oil dielectric loss measurement. Therefore, only a standard oil cup and dedicated test leads are needed to perform oil dielectric loss measurements.

7. Equipped with CVT test function, enabling self-excitation method testing of CVT without external accessories. Only one measurement is needed to obtain the capacitance and dielectric loss of C1 and C2.

8. The reverse wiring test adopts IVDDV technology, eliminating the previous instability of reverse wiring data.

9. Has reverse wiring low-voltage shielding function. Under the condition of 220kV CVT busbar grounding, C11 can be measured without disconnecting the line for 10kV reverse wiring dielectric loss measurement.

10. Has the function of measuring high-voltage dielectric loss, capable of performing dielectric loss tests above 10kV using a high-voltage transformer or series resonance.

11. Ground protection function: when the instrument is not grounded or poorly grounded, it will not enter the normal program and will not output high voltage. Overcurrent protection function: the instrument will not be damaged in case of short circuit or breakdown of the test object.

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

1. Accuracy: Cx: ±(reading × 1% + 1pF)

            Tgδ: ±(reading × 1% + 0.00040)

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

3. Capacitance range:

1) Internal high voltage: 3pF～60000pF/10kV, 60pF～1μF/0.5kV

2) External high voltage: 3pF～1.5μF/10kV, 60pF～30μF/0.5kV

4. Resolution: 0.001pF, 4 significant digits

5. tgδ range: unlimited, resolution 0.001%, automatic identification of capacitance, inductance, and resistance test objects.

6. Test current range: 10μA～1A

7. Internal high voltage: set voltage range: 0.5～10kV

1) Output current: 200mA

2) Voltage regulation method: continuous smooth adjustment

3) Test frequency: 45, 50, 55, 60, 65Hz single frequency

            45/55Hz, 55/65Hz, 47.5/52.5Hz automatic dual frequency conversion

4) Frequency accuracy: ±0.01Hz

8. External high voltage: test current 1A for normal wiring, power frequency or variable frequency 40-70Hz

            For reverse wiring, test current 10kV/1A, power frequency or variable frequency 40-70Hz

9. CVT self-excitation method low voltage output: output voltage 3～50V, output current 3～30A

10. Measurement time: about 40s, depending on the measurement mode

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

12. Computer interface: standard RS232 interface

13. Printer: Weihuang A7 thermal micro printer

14. Ambient temperature and humidity: -10℃～50℃; <90%

15. Dimensions and weight: 460×360×350mm; 28kg



Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.