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ARRESTERS (DMOA)
Class I Distribution Metal Oxide Surge Arresters with polymeric enclosure, for systems from 13.8 kV to 34.5 kV with nominal discharge current of 10 kA according to the CFE-VA410-43 specification. EPRECSA trademark. Manufactured in Mexico.
| Short description | ADOMC-10 | ADOMC-12 | ADOMC-18 | ADOMC-21 | ADOMC-27 | ADOMC-30 | |
|---|---|---|---|---|---|---|---|
| Rated System Voltage (kV) | 13.8 | 13.8 | 23 | 23 | 34.5 | 34.5 | |
| Rated Voltage and System type (kV) | 13.8 kV 3F-4H | 13.8 kV 3F-3H | 23 kV 3F-4H | 23 kV 3F-3H | 34.5 kV 3F-4H | 34.5 kV 3F-3H | |
| Surge arrester Rated Voltage (kV) | 10 | 12 | 18 | 21 | 27 | 30 | |
| Insulated Withstand Voltage | Impulse test 1,2/50µs (kV Peak) | 75 | 85 | 125 | 125 | 150 | 150 |
| Altern current Voltage test into 1 minute power frequency in wet (kV effective) | 24 | 27 | 36 | 36 | 60 | 60 | |
| Max Residuals Voltages | Switching impulse , 10 kA peak, 1/20µs | 29 | 35 | 53 | 61 | 79 | 87 |
| Lightning Impulse , 10kA peak, 8/20µs | 36 | 44 | 65 | 76 | 98 | 108 | |
| Steep current Impulse 30/60µs | 40 | 48 | 72 | 84 | 108 | 120 | |
| Continious Operation Voltage (kV effective) | 8.4 | 10.2 | 15.3 | 17.0 | 22.0 | 24.4 | |
| Max. Partial Discharge Value (pC) | 10 | 10 | 10 | 10 | 10 | 10 | |
| Min. Creepage Distance | 495 | 495 | 830 | 830 | 1030 | 1030 | |
