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INSTALLATION FOR MEASURING DIELECTRIC LOSSES OF LIQUID DIELECTRICS "TANGENS 3M-3-LIGHTNING"

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Equipment

The device "TANGENS 3m-3-LIGHTNING" provides, under normal conditions of use, the measurement of the tangent of the angle of dielectric losses ( tgδ ) and the capacitance of samples of liquid dielectrics ( Cx ) in the ranges with the basic measurement error given below:

- measurement range of dielectric loss tangent

from 1 10 -4  to   0.3;

- the limit of the permissible absolute basic error when measuring the tangent of the dielectric loss angle

+  (5  10 -4  + 0.05 tgδ);

- capacitance measurement range at a test voltage of 2 kV

5 pF to 100 pF;

- the limit of the permissible basic absolute error when measuring capacitance at a frequency of 50 Hz

1.5 pF + 0.01 Cx;

- limit of permissible relative error when measuring rms voltage at a frequency of 50 Hz in the voltage measurement range from 1 to 2 kV

+ 3%;

- the limit of the permissible absolute error of measuring the temperature of the tested liquid dielectric

+ 1.5 ° C.

- heating time up to 90 ° C, min.

80 ± 20

- cell volume, cubic meters cm

60 ± 2

- supply voltage of single-phase alternating current, V

220 ± 22

- power consumption, kVA, not more

0.65

The limit of the permissible additional measurement error caused by a change in the ambient temperature from normal (20 ± 5 ° С) to any within the working area does not exceed 10% of the limit of the permissible basic absolute measurement error for every 10 deg. temperature changes.

"TANGENS 3m-3 -LIGHTNING" provides output of measurement results on the liquid crystal display (LCD) of the indication unit.

The image of numbers and signs on the display is distinguishable at a distance of at least 0.8 m with an external illumination of 10 to 1000 lux.

"TANGENS 3m-3-LIGHTNING" in normal and working conditions of use is ready for work within no more than 2 minutes. after switching on.

Mean time between failures for operating conditions of use is 
not less than 4000 hours.

The average service life of the meter is at least 10 years.

No.

Component name

Designation

Quantity, pcs.

Overall dimensions, mm

Weight, no more, kg

1

INSTALLATION FOR MEASURING DIELECTRIC LOSSES OF LIQUID DIELECTRICS "TANGENS 3m-3 - LIGHTNING" OPERATION MANUAL

3M3-00.00.00RE

1

 

 

2

Installation for measuring dielectric losses of liquid dielectrics "TANGENS 3m-3-LIGHTNING"

"TANGENS 3m-3-LIGHTNING"

1

670x330x115

21

3

Measuring cell

 

3

Ǿ105x40

0.4

4

Set of wires and cables

KP-1

1

Ǿ200x40

0.4

five

Packaging containers

 

1

830x430x240

five

COMPLETENESS

The device "TANGENS 3m-3-LIGHTNING" is supplied with the set specified in Table 1. The list of cables included in the set of connecting wires KP1 is given in the table.

 

Modification

Name of cables and wires

Quantity, pcs.

Note

KP1

High-voltage connecting wire

1

Length 1.5 m

Network cable

1

Length 1.5-1.8 m

Ground wire

1

Length 1.5 m

Installation for measurement of dielectric losses of liquid dielectrics "TANGENS 3m-3-LIGHTNING" is designed to measure the tangent of the dielectric loss angle of transformer oil and some other liquid dielectrics, carried out in accordance with GOST 6581-75.

The device "TANGENS 3m-3 - LIGHTNING" is made in a version that meets the requirements of GOST 22261 for electronic measuring devices of group 2.

 "TANGENS 3m-3-LIGHTNING" has the following normal conditions of use:

ambient temperature, ° С

20 ± 5;

relative humidity, %

80 at 25 ° C;

atmospheric pressure, kPa (mm Hg)

84-106 (630-795);

power supply frequency, Hz

50 ± 1.

 

The TANGENS 3m-3-LIGHTNING device is intended for operation under the following operating conditions:

ambient temperature, ° С

from 10 to 35;

relative humidity, %

up to 80 at 30 ° С;

atmospheric pressure, kPa (mm Hg)

70-106.7 (537-800);

power supply frequency, Hz

50 ± 1.