Surge arresters
Application:
Medium voltage surge arresters are offered in two versions: for use indoor and outdoor use. Surge arresters are made of strictly connected varistors, separated from the cover by a special resin dilatation.
Products comply with the standard PN-EN 60099-4: 2009.
Basic features:
- outdoor and indoor use
- high resistance to dirt
- excellent hydrophobic properties in outdoor performance
- maintenance-free
- low weight and small dimensions
- mounting system and the spower supply is unified with post insulators
Operating conditions:
| AMBIENT TEMPERATURE | -40oC up to +40oC |
| MAX. HEIGHT | up to 1000 m above sea level |
| MAX. CROSS-SECTION OF THE CONNECTION LINE | up to 70 mm2 |
Versions:
| INDOOR | housing made of epoxy resin, red color |
| OUTDOOR | housing made of hydrophobic epoxy composites |
| CLAMPS, BOLTS, NUTS | made of chrome-nickel steel |
| MAX. CROSS-SECTION OF THE CONNECTION LINE | up to 70 mm2 |
| FREQUENCY | 48 Hz - 62 Hz |
Technical data:
| MCL-OPW/01 | MCL-OPW/02 | MCL-OPW/03 | MCL-OPW/04 | MCL-OPW/05 | MCL-OPW/06 | MCL-OPW/07 | MCL-OPW/08 | MCL-OPW/09 | MCL-OPW/10 | MCL-OPW/11 | |
| rated voltage Ur | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 | 30 | 33 |
| continuous operating voltage Uc | 2,4 | 4,8 | 7,2 | 9,6 | 12 | 14,4 | 16,8 | 19,2 | 21,6 | 24 | 26,4 |
| lower voltage at rated discharge current Uo not higher than | 7,7 | 15,4 | 23,1 | 30,8 | 38,5 | 46,2 | 53,9 | 61,6 | 69,3 | 77 | 84,7 |
| lowered voltage at current impulse 10 kA 1/3 | 9,4 | 18,8 | 28,2 | 37,6 | 47,1 | 56,5 | 65,6 | 75,3 | 84,7 | 94,1 | 103,5 |
| reduced connecting voltage 250 A | 6,3 | 12,7 | 19 | 25,4 | 31,7 | 38,1 | 44,4 | 50,8 | 57,1 | 63,4 | 69,8 |
| creepage path [mm] | 60 | 110 | 180 | 180 | 245 | 245 | 290 | 290 | 490 | 490 | 490 |
| height H [mm] | 64 | 99 | 134 | 134 | 179 | 179 | 214 | 214 | 304 | 304 | 304 |
| rated voltage Ur | 3 kV up to 33 kV |
| rated discharged current | 10 kA |
| limitting discharged current | 100 kA |
| rectangular impulse current withstand | (2000 µs) 250 A |
| line discharge class | 1 |
| energy absorption capability | 2,8 kJ/kVUc 3,22 kJ/kVUr |
Structure:
| 1 | epoxy resin |
| 2 | varistors |
| 3 | aluminum ferrule |
Technical drawings:
Dimensions
| MCL-OPW/01 | MCL-OPW/02 | MCL-OPW/03 | MCL-OPW/04 | MCL-OPW/05 | MCL-OPW/06 | MCL-OPW/07 | MCL-OPW/08 | MCL-OPW/09 | MCL-OPW/10 | MCL-OPW/11 | |
| H1 | 64 | 99 | 134 | 134 | 179 | 179 | 214 | 214 | 304 | 304 | 304 |
| H2 | 60 | 95 | 130 | 130 | 175 | 175 | 210 | 210 | 300 | 300 | 300 |
| D1 | Φ 60 | Φ 60 | Φ 55 | Φ 55 | Φ 60 | Φ 60 | Φ 60 | Φ 60 | Φ 75 | Φ 75 | Φ 75 |
| D2 | Φ 60 | Φ 60 | Φ 75 | Φ 75 | Φ 85 | Φ 85 | Φ 90 | Φ 90 | Φ 114 | Φ 114 | Φ 114 |
ELTOM reserves the right to make changes resulting from technological progress.