TANGENT-3M

AUTOMATIC INSULATING OIL DISSIPATION FACTOR METER

TANGENT-3M is designed for measuring the dielectric dissipation factor (tan δ / tangent delta) of insulating oils at industrial frequency (f = 50 Hz) according to IEC 60247:2004.

In addition to the dielectric dissipation factor, TANGENT-3M determines the temperature, absolute permittivity, and electrical capacitance of the oil sample.

AUTOMATED MEASUREMENT

Fully automated cycle for measuring dielectric dissipation factor, including empty test cell calibration and oil sample heating, is carried out according to IEC 60247 specifications.

REPLACEABLE TEST CELLS

TANGENT-3M is supplied with three test cells as standard, however its non-volatile memory is capable of storing parameters for up to six different cells.

STORING AND EXPORTING TEST RESULTS

Up to 2000 test results can be stored in the memory of the device and exported to PC in MS Word or Excel formats.

HIGH ACCURACY AND RATE OF MEASUREMENT

In addition to the dielectric dissipation factor, TANGENT-3M measures the temperature, dielectric constant and electrical capacitance of an oil sample.

Measurement duration according to the program "START 1", including test cell calibration and oil sample heating to 90 °С (with taking measurements at 70 and 90 °С), does not exceed 35 minutes.

Measurement duration according to "START 2" program which in addition to test cell calibration and oil sample heating to 95 °С (with taking measurements at 70/80/90 °С) also includes the sample cooling (with taking measurements at 90/80/70 °С), does not exceed 85 minutes.

DURABLE DESIGN

The meter is made in the form of a single compact unit enclosed in a heat-resistant plastic casing and weighs only 5 kg.

SAFETY

High-voltage circuit of TANGENT-3 is protected against breakdowns, while the high voltage supply is immediately cut off whenever the test chamber lid gets opened.

* Pictures used herein are for illustration purposes only. *


Dissipation factor (tangent delta) measurement parameters Measurement range 0.0001 … 1.0
Absolute measurement error ± (0.01*tan δ + 0.0002),
where tan δ – measured value of the dissipation factor
Measurement resolution 0.00001
Measurement time, including cell calibration and oil sample heating to 90 °C (with measurement at 70 / 80 / 90 °C) up to 35 min
Measurement time, including cell calibration and oil sample heating to 90 °C (with measurement at 70 / 80 / 90 °C) and cooling (with measurement at 90 / 80 / 70 °C) up to 85 min
Electrical сapacitance determining parameters Determining range 5 … 50 pF
Determining error ± (tan δ + 0.5) %
System parameters AC voltage applied to the test cell 2000 VRMS
Relative voltage measurement error ± 2.5 %
Heating temperature of the oil sample in the cell up to 90 °С
Absolute temperature determining error ± 1 °С
Test cell volume 12 cm3 ± 1 cm3
Power supply and consumption Mains supply voltage 230 VAC, ± 10 %
Mains supply frequency 50 / 60 Hz
Power consumption up to 0.3 kV•А
Physical Dimensions, H × W × D 90 × 405 × 260 mm
Weight 5 kg

 

* Products specifications are subject to change without notice. *


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