Öl-Analysator HZJD-2Z

Industrieautomatischdigital

In electrical engineering and maintenance, ensuring the reliability and efficiency of insulating oils is of utmost importance. The Tan Delta Tester for dielectric loss of insulating oils is an essential tool for professionals involved in maintaining the integrity of electrical systems. This advanced device measures the dielectric loss (Tan Delta) of insulating oils, providing crucial insights into the condition and performance of these vital materials.OverviewThe HZJD-2Z, a tester for dielectric loss and specific resistance of insulating oil, was developed and manufactured according to GB/T5654-2007 for “Measurements of relative permittivity, dielectric loss factor, and specific DC resistance of liquid insulating materials.” It is used to measure the dielectric loss factor and specific DC resistance of insulating oil and other insulating liquids. The device features an integrated structure and includes a test cell, temperature controller, temperature sensor, dielectric loss test bridge, AC test source, standard capacitor, high resistance meter, DC high voltage source, and other key components. The device uses fully digital technology and features intelligent automatic measurement. It is equipped with a large color LCD screen (800 x 480) that guides you through each step and automatically saves and prints test results, allowing even operators without specialized training to use the device safely.Main Functions and FeaturesThe test cell uses a three-electrode structure according to the national standard GB/T5654-2007 with an electrode spacing of 2 mm, eliminating the effects of stray capacitance and leakage on dielectric loss test results. The device is equipped with an oil drain magnetic switch, allowing draining and rinsing of the test sample without removing the test cell.The device uses medium-frequency induction heating and a PID temperature control algorithm. This heating method offers contactless interaction between the test cell and the heater, uniform heating, high speed, convenient control, and strict temperature control within the preset temperature error range.The internal standard capacitor is a three-electrode capacitor filled with SF6 gas. Its dielectric loss and capacitance are independent of ambient temperature, humidity, and other influences, ensuring the instrument's accuracy even after long-term use.The AC test power supply uses AC-DC-AC conversion to effectively avoid fluctuations in mains voltage and frequency affecting the accuracy of dielectric loss measurements. The device can operate properly even with a generator.Perfect protection function: In case of overvoltage, overcurrent, or high-voltage short circuit, the instrument can quickly shut off pressure and issue a warning. If the temperature sensor fails or is not connected, the instrument also issues a warning.The medium-frequency induction furnace contains a temperature limit relay. If the temperature exceeds 120°C, the device releases the relay and stops heating.Convenient setting of experimental parameters: Temperature setting range 0–125°C, AC voltage setting range 500–2000 V, DC voltage setting range 0–500 V.Large LCD display with backlight and clear display. User-friendly interface: Simply follow the Chinese menu guidance, enter the command, and the device can be tested automatically. Test results are automatically saved and printed.Built-in real-time clock: Test date and time can be saved, displayed, and printed with the test results.Calibration functions for the cleaned dry cell: Measuring the capacitance and dielectric loss factor of the dry cell can determine its cleaning and assembly conditions. Calibration data are automatically saved, facilitating the calculation of relative permittivity and DC resistance.Key Technical IndicatorsPower supply: AC 220 V ± 10%Frequency: 50 Hz/60 Hz ±1%Measurement range:Capacitance: 5pF–200pFRelative permittivity: 1.000–30.000Dielectric loss factor: 0.00001–100DC resistance: 2.5 MΩm–20 TΩmMeasurement accuracy:Capacitance: ± (1% of reading + 0.5 pF)Relative permittivity: ±1% of readingDielectric loss factor: ± (1% of reading + 0.0001)DC resistance: ±10% of readingResolution:Capacitance: 0.01 pFRelative permittivity: 0.001Dielectric loss factor: 0.00001Measured temperature range: 0–125°CTemperature measurement error: ±0.5°CTest voltage AC (RMS): 500–2000V stepless adjustable, frequency 50HzTest voltage DC: 0–500V stepless adjustablePower consumption: 100 WDimensions: 500×360×420 mmTotal weight: 22 kgOperating ConditionsAmbient temperature: 0°C to 40°CRelative humidity (RH): (see images for details)Technical Specifications / FeaturesModel: HZJD-2ZBrand: HuazhengApplication: Measurement of dielectric loss and specific resistance of insulating oils and liquidsDisplay: Large color LCD (800 x 480)Automatic measurement and data storage/printingIntegrated structure with test cell, temperature controller, sensors, and moreComplies with GB/T5654-2007 standardMultiple protection and safety featuresCalibration and real-time clock functions