Surge arrester POLIM-D
Silicone-housed surge arrester of IEC class distribution high (DH) for AC systems up to 52 kV
POLIM-D is a surge arrester with metal-oxide (MO) resistors without spark gaps directly molded in silicone housing, in grey color, designed and tested according to IEC 60099-4; and it fulfills the requirement of ANSI/IEEE C62.11. Fire and smoke behavior tested and classified according to EN 45545-2.
It is used for secure protection of medium voltage systems against overvoltages from atmospheric discharges and switching conditions.
Applications
- Medium-voltage distribution transformer
- Pole mounted medium-voltage transformer
- Medium-voltage cable and cable termination
- Reactor and power line carrier (PLC) line trap
- Other medium-voltage distribution equipment
Brief performance data
| POLIM-D | ||
|---|---|---|
| Maximum system voltage (Us) | kV | 52 |
| Continuous voltage through arrester (Uc) | kVrms | 4-36 |
| Rated voltage of arrester (Ur) | kVrms | 5-45 |
| Nominal discharge current (In) | kApeak | 10 |
| Charge transfer rating (Qth) | As | 1.1 |
For more details see the data sheet in downloads below.