Plug-in surge arrester POLIM-D..PI-2/-3
Plug-in arrester for IEC class distribution high (DH) for AC systems up to 52 kV
Surge arrester with metal-oxide (MO) resistors without spark gaps directly molded with silicone rubber, in a touch-proof metal clad, designed and tested according to IEC 60099-4.
The arrester is applicable for inner cone systems according to DIN EN 50181 and DIN 47637.
The arrester is available in cone sizes 2 and 3. It is used for secure protection of transformer and metal-clad switchgear against overvoltages from atmospheric discharges and switching conditions.
Applications
- Transformers
- Medium-voltage gas-insulated switchgear
Why Hitachi Energy?
- Over 100 years of experience in overvoltage protection and more than 30 years with silicone insulation
- Local and global Hitachi Energy application support
- Proven safe short-circuit current design
- Design life of more than 30 years
- Own production of metal-oxide (MO) resistors
- Excellent protection level with low residual voltage
- Easy to install
- Maintenance-free
- Easy to track with monitoring system SAM 3.0
Brief performance data
| POLIM-D..PI-2 | POLIM-D..PI-3 | ||
|---|---|---|---|
| Maximum system voltage (Us) | kV | 52 | 52 |
| Continuous voltage through arrester (Uc) | kVrms | 4 – 42 | 24 – 42 |
| Rated voltage of arrester (Ur) | kVrms | 5 – 52.5 | 30 – 52.5 |
| Nominal discharge current (In) | kApeak | 10 | 10 |
| Cone size | 2 | 3 |
For more details see the data sheet in downloads below.
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