HV Test Sets


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IOG Test Transformers

IOG transformers (Test, Single-phase, with Gas insulation) are designed for use as high voltage sources in the mobile and stationary test laboratories.

                     
IOG-100/7,5 test transformer outline drawing                      IOG-100/7,5 test transformer in a transporting case

Transformers specifications are shown in table:

 
 Characteristic Value
IOG-150/18 IOG-100/20 IOG-100/7,5 IOG-50 IOG-15
HV winding rated voltage, kV 150 100 100 50 15/10*
Max. HV winding voltage at short-term using (use factor 10 %), kV 155 105 105 55 15/10*
50 Hz frequency test voltage, kV 165 110 110 55 16.5/11*
LV winding rated voltage, V 220 220 220 220 240
Rated frequency, Hz 50 50 50 50 50
Short-circuit stable current, A, not less 1,8 2,9 1,4 2,8 6,7/7,5*
Short-circuit voltage Usc, % 6,8 6,7 5,0 3,5 3,5
Min. load capacitance, nF 0,0 0,0 0,0 0,0 0,0
Max. capacitance of the test object, nF 15 15 15 40 330
Test power, kVA:
—    long-term rate
—    short-term rate (use factor 10%)

8,5
18

12
20

4,1
7,8

4,4
7,5

4,7
7,4
Max. supply power, no more, kVA 14,0 13,5 5,5 5,5 4,8
Proper PD intensity, pC, no more 5,0 5,0 5,0 5,0 5,0
Rated SF6 overpressure, MPa, no more 0,32 0,32 0,35 0,30 0,30
SF6 filling volume, l 25 25 15 15 15
Overall dimensions, mm 400x420x1270 400x420x700 350x350x620 350x350x580 350x350x580
Weight, kg 95 85 42 38 36
           

                                                                         

 * — The transformer has two LV winding sections; in the denominator – data for the series connection of the sections
 


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