A digital automatic dissipation factor measurement apparatus Tangens-3M is designed for measuring the dielectric dissipation factor tgδ of transformer oil and other insulating fluids according to IEC 60247 and GOST 6581-75 standards.
The device can operate with six different measurement cells, parameters of which are stored in a non-volatile memory and are easily accessible from the built-in menu. All settings and 2000 last measurements are also stored in a non-volatile memory of the unit.
The package includes software on a CD-ROM that allows importing the measurements data from the device to a PC. The data can be imported in MS Word or MS Excel formats. The device connects to a PC via the serial interface (RS232C).
- Technical Specifications
- Operating Conditions
The device is designed for an indoors operation under the following conditions:
| Condition |
Value |
| Air temperature, °С |
from -20 to +40
|
Relative humidity, %, up to
|
80 at +20° С |
Atmospheric pressure, kPa (mm hg)
|
84,0 – 106,7 (630 – 800) |
| Параметр |
Значение |
Dissipation factor measurement range
|
0,0001 ÷ 1.0 (0.01 ÷ 100 %)
|
Dissipation factor measurement error, %, max
|
(0,01 tg + 0,0002) |
Effective voltage applied to the measurement cell, V
|
2000 |
| Operating voltage measurement range, V |
0 ÷ 2700 |
| Relative error limit when measuring the operating voltage, % |
1.0 |
Capacitance measurement range, pF
|
5 ÷ 50 |
| Relative error limit when measuring the capacitance, % |
(0.5 + tg) |
| Heating range, °С |
10 ÷ 100 |
| Temperature measurement error, °С |
±1 |
| Measurement time, including callibration and heating to 90 °С (with measurement intervals of 10 °С), minutes |
30 |
| Measurement time, including callibration and heating to 90 °С (with measurement intervals of 10 °С) and cooling down, minutes |
80 |
|