HZJD-2Z Oil Tan Delta Tester Insulating Oil Dielectric Loss And Resistivity Tester
The HZJD-2Z Insulating Oil Dielectric Loss and Resistivity Tester is designed and manufactured based on the GB/T 5654-2007 standard, "Liquid Insulating Materials: Measurement of Relative Permittivity, Dielectric Loss Factor, and DC Resistivity." It is used to measure the dielectric dissipation factor and DC resistivity of insulating oils and other insulating liquids.The instrument features an integrated structure that combines the test cell, temperature controller, temperature sensor, dielectric loss test bridge, AC test power supply, standard capacitor, high-resistance meter, DC high-voltage source, and other major components. It adopts fully digital technology and offers intelligent automatic measurements. The tester is equipped with a large-color LCD display (800x480), which provides prompts in Chinese for each step of the process. Test results can be automatically stored and printed, allowing operators to use the device proficiently, even without specialized training.
HZJD-2Z Insulating Oil Dielectric Loss And Resistivity Tester
I. The Main Functions And Features
1.The test cell uses a three-electrode structure in accordance with the national standard GB/T 5654-2007, with an electrode spacing of 2 mm. This design eliminates the effects of stray capacitance and leakage on the dielectric loss test results. The apparatus is equipped with an oil drainage solenoid switch, allowing the test cell to be emptied without removal, making it possible to rinse it with the test sample.
2.The instrument adopts medium-frequency induction heating with a PID temperature control algorithm. This heating method offers the advantages of non-contact between the test cell and the heating body, even heating, fast heating speed, convenient control, and strict maintenance of the temperature within the preset error range.
3.The internal standard capacitor is an SF6 gas-filled, three-electrode capacitance, and its dielectric loss and electrical capacitance are unaffected by ambient temperature, humidity, or other external factors. This ensures the instrument's accuracy even after prolonged use.
4.The AC test power supply uses AC-DC-AC conversion, effectively preventing fluctuations in mains voltage and frequency from affecting the dielectric loss measurement accuracy. The instrument can operate properly even when powered by a generator.
5.The instrument has comprehensive protection features. In the event of overvoltage, overcurrent, or a high-voltage short circuit, the instrument can quickly cut off the power supply and issue a warning message. Additionally, if the temperature sensor fails or is disconnected, the instrument will also issue a warning.
6.A temperature-limiting relay is installed in the medium-frequency induction heating furnace. If the temperature exceeds 120°C, the instrument will disengage the relay and stop the heating process.
7.The experimental parameters can be set conveniently. The temperature setting range is 0 to 125°C, the AC voltage setting range is 500 to 2000V, and the DC voltage setting range is 0 to 500V.
8.The instrument features a large-screen LCD display with backlight for clear visibility. The user-friendly interface allows the operator to simply follow the Chinese-language menu prompts to enter commands, enabling automatic testing. Test results are automatically stored and printed.
9.The built-in real-time clock allows the test date and time to be saved, displayed, and printed along with the test results.
10.The instrument includes a calibration function for the cleaned dry cell. Measuring the capacitance and dielectric loss factor of the dry cell determines its cleaning and assembly conditions. The calibration data is automatically saved, facilitating the calculation of relative permittivity and DC resistivity.
II. Major Technical Indicators
Voltage supply: AC 220V±10%
Power frequency： 50Hz/60Hz ±1%
Measuring range：
Electric capacity 5pF～200pF
Relative Permittivity 1.000～30.000
Dielectric loss factor 0.00001～100
DC Resistivity 2.5MΩm～20TΩm
Measuring accuracy：
Electric capacity ± (1% of measured value+0.5pF)
Relative Permittivity ±1% of measured value
Dielectric dissipation factor ± (1% of measured value+0.0001)
DC Resistivity ±10% of measured value
Resolution：
Electric capacity 0.01pF
Relative capacitivity 0.001
Dielectric dissipation factor 0.00001
Measured temperature range：0～125℃
Temperature measurement error：±0.5℃
Test Voltage AC(RMS)： 500～2000V Continuously adjustable, frequency 50Hz
Test Voltage DC： 0～500V Continuously adjustable
Power consumption：100W
Packing List
|
No. |
Item |
Qty |
|
1 |
Main engine |
1 |
|
2 |
Oil Cup |
1 |
|
3 |
Oil tube |
1 |
|
4 |
Oil cup oil hole |
1 |
|
5 |
Oil cup observation hole |
1 |
|
6 |
Dedicated test cable |
1 |
|
7 |
50ml measuring cylinder |
1 |
|
8 |
Power line |
1 |
|
9 |
Fuse pipe |
2 |
|
10 |
Print paper |
2 |
|
11 |
Allen wrench(5*30) |
1 |
|
12 |
Allen wrench(1.5*15) |
1 |
FAQ
1. When can I get a price quote?
You can contact us online or submit an inquiry. We typically provide a quote within 24 hours after receiving your request.
2. How do you handle after-sale service for overseas customers?
For issues occurring with our products, we offer:
12-month warranty coverage (see details below).
Online technical guidance to troubleshoot problems remotely.
Replacement parts shipped promptly based on your needs.
On-site support (if required): Our engineers can travel abroad to resolve critical issues.
3. What is the warranty period?
Our standard warranty period is 12 months (1 year). During this time, we provide:
Free technical support.
Replacement parts for manufacturing defects.
Solutions tailored to your specific issue.
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