Wire-wound resistor
Resistor type:
RD/40A/12s./3,3kV/80R.
Parameters:
| rated operating voltage | 3,3 kV |
| rated voltage of insulation to earth | 18,5 kV / 1 min. |
| rated operating current | 40 A |
| heat resistance of the resistor at rated current | 12 s. |
| rated resistance | 80Ω ±5% |
| level of protection | IP00 |
| type of cooling | natural |
| application | indoor |
Compliance with standards:
- PN-E-05115
- PN-EN 60071-1
- PN-EN 60071-2
Quality testing:
- examination
- resistance measurement
- testing the insulation for the puncture of test volatge of 18,5 kV/1min., 50 Hz
Operating conditions:
- casual work
- natural cooling
- indoor use
- work in an atmosphere containing no explosive gases and mixtures and corrosive fumes
- ambient temp.: lowest long-term -30°C, the highest 24-hour 30°C, the highest short-term 55°C
- relative humidity to 95% at +22°C (293 K)
- installation height max. 1000 meters above sea level
Construction:
The resistor is constructed as shown below. The thrust elements are made of wire thrust wire (FeCrAl) elliptically coiled and placed on an insulated core. The resistor consists of five thrust elements which are placed on the resin post insulators providing another extra level of insulation.
TECHNICAL DRAWINGS:
All technical data presented in the catalog can be changed due to technological progress.