Ruice Electric Dissipation Factor Relative Permittivity Test Equipment 12kv insulation dielectric loss tester capacitance

I. Overview

RCJD20 Insulating oil dielectric lossand resistivity tester, is designed and manufactured based on

GB/T5654-2007 of(Liquid insulating material of relative permittivity, dielectric loss factorand DC resistivity

measurements). It is used for measuring dielectricdissipation factor and DC resistivity of insulating oil and

other insulatingliquids. The instrument is characterized by integrated structure, andintegrates test cell,

temperature controller, temperature sensor, dielectricloss test bridge, AC test power, standard capacitor,

high resistance meter, DChigh voltage source and other major components. The instrument adopts

fulldigital technology and all of the intelligent automatic measurement, isequipped with large colcor screen

(800*480) LCD display, which each step hasprompted the Chinese, the test results can be automatically

stored and printedoutput, so that the operator without professional training will be able to useit proficiently.

II.The Main Functions and Features

1.The testcell used of the three-electrode structure in line with the national standardGB/T5654-2007, with electrode spacing 2mm, can eliminate the effects of thestray capacitance and leakage on

dielectric loss test results. The apparatus isequipped with the oil drainage solenoid switch, and we can

empty the test cellin case of not removing it and rinse it with the test sample.

2.Theinstrument adopts the medium frequency induction heating, PID temperaturecontrol algorithm.

This heating method has the advantages of t noncontactbetween the test cell and the heating body, even

heating, fast speed,convenient control,

strict control of the temperature within error range of thepreset temperature.

3.Internalstandard capacitor is SF6 gas-filled three-electrode capacitance, and itscapacitor dielectric loss and electrical capacity is independent of

ambienttemperature, humidity and other effects, so that the instrument accuracy can beensured even after prolonged use.

4.AC testpower supply using AC-DC-AC conversion, effectively avoid the fluctuations inmains voltage and frequency on dielectric loss measurement accuracy effect.Even a generator, the instrument can work properly.

5.Perfectprotection function; When there is over voltage,over current or high-voltageshort circuit, instruments can quickly cut off pressure, and issues a warningmessage. When the

temperature of the sensor failure or not connected, theinstrument will also issue a warning message.

6.There is atemperature limiting relay in the medium frequency induction heatingfurnace. When

temperature above 120 degrees, the instrument frees the relay andstops heating.

7.Moreconvenient the experimental parameter is set. Temperature setting range 0~125℃,AC voltage

setting range 500~2000V, DC voltage setting range 0~500V.

8.Using oflarge-screen LCD display, with backlight and clear display. Friendly interface,simply follow the Chinese menu

prompt, enter the command, the instrument can beautomatically tested. And automatically store and print

test results.

9.Built-inreal-time clock, the test date and time may be saved, displayed and printedwith the test results.

10.Calibrationfunctions of cleaned dry cell. The measurement of dry cell’s capacitance anddielectric loss

factor can determine its cleaning and assembly conditions. Thecalibration data is automatically saved and so that it facilitates thecalculation of relative permittivity and DC resistivity.

III.Major Technical Indicators

Voltagesupply: AC 220V±10%

Powerfrequency: 50Hz/60Hz ±1%

Measuringrange:

Electriccapacity 5pF~200pF

RelativePermittivity 1.000~30.000

Dielectricloss factor 0.00001~100

DCResistivity 2.5MΩm~20TΩm

Measuringaccuracy:

Electriccapacity ± (1% of measured value+0.5pF)

Relative Permittivity ±1% of measured value

Dielectricdissipation factor ± (1% ofmeasured value+0.0001)

DCResistivity ±10% of measured value

Resolution:

Electriccapacity 0.01pF

Relativecapacitivity 0.001

Dielectricdissipation factor 0.00001

Measuredtemperature range:0~125℃

Temperaturemeasurement error:±0.5℃

Test VoltageAC(RMS): 500~2000V Continuously adjustable, frequency 50Hz

Test VoltageDC: 0~500V  Continuously adjustable

Powerconsumption:100W

Externaldimensions: 500×360×420

Total weight:22Kg

IV.Use Condition

Ambienttemperature:0℃~40℃

Relativehumidity(RH):<75%