DN Voltage Dividers
“DN”-series voltage dividers are designed for measuring the high test voltages (1 - 200 kV) according to GOST 17512:
- DN-xxE - capacitive dividers, for the a.c. power frequency 50 Hz voltage;
- DN-xxEO - capacitance-resistance compensated dividers, for the a.c. power frequency 50 Hz alternating voltage and d.c. voltages;
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DN-10EO |
DN-50EO |
DN-100EO |
DN-100EO-200 |
DN-200E |
DN-series high-voltage dividers |
Basic specifications of SF6 dividers are shown in table:
Characteristic |
Value |
DN-10EO |
DN-15EO |
DN-50E(O) |
DN-100E(O) |
DN-100EO-200 |
DN-200E |
DN-200EO |
Rated frequency, Hz |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
Rated a.c. voltage, kV |
10 |
15 |
50 |
100 |
100 |
200 |
200 |
Rated d.c. voltage, kV |
15 |
20 |
- (70) |
- (100) |
200 |
- |
200 |
Test a.c. power frequency voltage, 1 min., kV |
13 |
20 |
65 |
125 |
125 |
235 |
235 |
Rated h.v. capacity, pF |
2350 |
1570 |
1000 |
500 |
500 |
300 |
250 |
Rated h.v. resistance, MOhm |
96 |
144 |
- (475) |
- (950) |
1535 |
- |
1740 |
Rated dividing coefficient |
100 |
150 |
500 |
1000 |
2000 |
2000 |
2000 |
Max. dividing coefficients error in the voltage range (0.1-1)Urated, % |
± 1,0 |
± 1,0 |
± 1,0 |
± 1,0 |
± 1,0 |
± 1,0 |
± 1,0 |
Rated SF6-gas pressure (excess), MPa |
0,0 |
0,0 |
0,2 |
0,2 |
0,2 |
0,3 |
0,3 |
SF6 filling volume, liter |
0,15 |
0,15 |
4 |
8 |
8 |
18 |
18 |
Measuring cable (type RG58C) length, m |
10 |
10 |
10 |
10 |
10 |
20 |
20 |
Overall height, mm |
320 |
440 |
550 |
870 |
870 |
1450 |
1450 |
Mass, no more, kg |
0,7 |
1,0 |
6,0 |
9,5 |
9,5 |
24 |
24 |
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- Main insulation – synthetic film and SF6;
- Low tgδ value - 0.0005;
- Rated output voltage – 100 V;
- Linearity in wide voltage range;
- Relatively big values of the high-voltage capacity;
- Advanced electrostatic screens;
- Absence of PD in internal and external insulation; possibility of using as coupling capacitors for PD measurements;
- SF6 voltage dividers are flame-proof;
- High transportation resistance;
- Maintenance-free;
- Calibration periodicity – 2 years.
Standard calibration certificate, issued by FSUE "D.I.Mendeleev VNIIM", is accompanied with each divider.
Company also produce DN-220pt standard divider, designed for class 35, 110 and 220 kV voltage transformers on site calibration.
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