Product name: HCJS fully automatic variable frequency dielectric loss tester
Category: High-voltage equipment comprehensive test series
Detailed introduction
Product introduction
HCJS fully automatic variable frequency dielectric loss tester breaks through the traditional bridge measurement method and adopts variable frequency power supply technology to achieve strong anti-interference ability, fast test speed, high precision, full automatic digitization, and easy operation; the power supply adopts a high-power switching power supply, outputs 45Hz and 55Hz pure sine waves, automatically pressurizes, and can provide a maximum voltage of 10kV; automatically filters out 50Hz interference, suitable for field tests with large electromagnetic interference such as substations. It is widely used in the dielectric loss measurement of transformers, mutual inductors, bushings, capacitors, lightning arresters and other equipment in the power industry.
Functional features
The instrument uses the complex current method to measure capacitance, dielectric loss and other parameters. The test results are highly accurate and easy to realize automated measurement;
The instrument uses frequency conversion technology to eliminate the 50Hz power frequency interference on site, and reliable data can be measured even in a strong electromagnetic interference environment;
The instrument uses a large-screen LCD display, and the test process is intuitive and easy to operate through Chinese character menu prompts;
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;
The integrated model, with standard capacitors and high-voltage power supplies, is convenient for on-site testing and reduces on-site wiring;
The instrument has high measurement accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, it only needs to be equipped with a standard oil cup and a special test line to realize oil dielectric loss measurement;
With CVT test function, the self-excitation method test of CVT can be realized, without external accessories, and the capacitance and dielectric loss of C1 and C2 can be measured at one time; the reverse wiring test uses IVDDV technology to eliminate the previous reverse wiring data instability phenomenon;
It has perfect protection functions to ensure the safety of instruments and test personnel.
Technical parameters
Measurement range Capacitance value: 4pF～60nF
Dielectric loss value: 0～100%
Measurement accuracy Capacitance accuracy: ±(1% reading + 2pF)
Dielectric loss accuracy: ±(1% reading + 0.05%)
Resolution Capacitance resolution: minimum resolution 0.001 pF
Dielectric loss resolution: minimum resolution 0.001%
High voltage power supply Setting range: 0.5～10kV
Maximum output current: 200mA
Low voltage output Output voltage: 3～50V
Output current: 3～30A
Dimensions 390mm×320mm×330mm
Usage conditions
Ambient temperature -10℃～50℃
Ambient humidity ≤85%RH
Working power supply AC220V±10%
Power supply frequency 50±1Hz
