Based on Voltage
- Low - Less than 1kV
- Medium - 1kV to 52kV
- High/Extra High - 52kV to 245kV
- EHV - 245KV to 765kV
- Ultra High - Above 765kV
Based on location
- Indoor
- Outdoor
Based on External design
- Dead tank
- Live tank
Based on Interrupting media
- Air break
- Air blast
- Bulk oil
- Minimum oil
- SF6 gas insulated
- Vacuum
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