HZJD-2 Transformer Oil Tan Delta And Resistivity Tester

Product Description

HZJD-2 Transformer Oil Tan Delta Tester Introduction

1.The test cell used of the three-electrode structure in line with the international standard IEC, with electrode spacing 2mm, can eliminate the effects of the stray capacitance and leakage on dielectric loss test results. The apparatus is equipped with the oil drainage solenoid switch, and we can empty the test cell in case of not removing it and rinse it with the test sample.
2.The instrument adopts the medium frequency induction heating, PID temperature control algorithm. This heating method has the advantages of t non-contact between the test cell and the heating body, even heating, fast speed, convenient control, strict control of the temperature within error range of the preset temperature.
3.Internal standard capacitor is SF6 gas-filled three-electrode capacitance, and its capacitor dielectric loss and electrical capacity is independent of ambient temperature, humidity and other effects, so that the instrument accuracy can be ensured even after prolonged use.
4.AC test power supply using AC-DC-AC conversion, effectively avoid the fluctuations in mains voltage and frequency on dielectric loss measurement accuracy effect. Even a generator, the instrument can work properly.
5.Perfect protection function; When there is over voltage,over current or high-voltage short circuit, instruments can quickly cut off pressure, and issues a warning message. When the temperature of the sensor failure or not connected, the instrument will also issue a warning message.
6.There is a temperature limiting relay in the medium frequency induction heating furnace. When temperature above 120 degrees, the instrument frees the relay and stops heating.
7.More convenient the experimental parameter is set. Temperature setting range 0125 , AC voltage setting range 5002200V, DC voltage setting range 0500V.
8.Using of large-screen LCD display, with backlight and clear display. Friendly interface, simply follow the Chinese menu prompt, enter the command, the instrument can be automatically tested. And automatically store and print test results.

9.Built-in real-time clock, the test date and time may be saved, displayed and printed with the test results.
10.Calibration functions of cleaned dry cell. The measurement of dry cells capacitance and dielectric loss factor can determine its cleaning and assembly conditions. The calibration data is automatically saved and so that it facilitates the calculation of relative permittivity and DC resistivity.

HZJD-2 Transformer Oil Tan Delta Tester MAJOR TECHNICAL INDICATORS

Voltage supply:  AC 220V10%

Power frequency 50Hz/60Hz 1%

Measuring range

Electric capacity   5pF200pF

Relative Permittivity 1.00030.000

Dielectric loss factor 0.00001100

DC Resistivity 2.5Mm20Tm

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 range0120

Temperature measurement error0.5

Test Voltage AC(RMS) 5002000V Continuously adjustable, frequency 50Hz

Test Voltage DC 300V500V  Continuously adjustable

Power consumption100W

External dimensions 500360420

Total weight 22Kg

3.HZJD-2 Transformer Oil Tan Delta Tester USE CONDITIONS
Ambient temperature0 40 Relative humidity(RH)<75%

Solvent cleaning method   Dismantle the test cell.

Wash all parts with solvents, and change the solvents.

Wash all parts with the acetone first, then tap water. Then clean them with distilled water.

Dry the parts 6090 minutes in the oven at temperature of 105110.

When testing a group of similar liquid samples but not used, as long as the last test sample has better performance than the specified value of the measuring, we can use the same test cell without intermediate washing. If the performance of the tested sample is inferior to the measuring sample, the test cell must be cleaned before you do the next test