CTPT · OUTDOOR
11 kV Oil-Cooled CT-PT Combined Unit
Combined CT-PT unit · outdoor installation up to 33 kV
Current and potential transformers combined in one oil-filled outdoor unit, for HT metering on 11 kV and 33 kV lines and consumer connections.
- Integrated CT & PT
- Space-efficient design
- Outdoor rated
- Single support structure
- Up to 33 kV
Need help choosing a rating? Call +91 9991688804 or email contact@ashokapowermatrix.com.
The oil-cooled CT-PT combined unit (metering unit) houses three-phase current and potential transformers in a single sealed, oil-immersed tank for outdoor HT metering.
One unit replaces separate CTs and PTs on a single support structure, saving space and making the metering point simpler to install and seal.
- Integrated CT & PT
- Space-efficient design
- Outdoor rated
- Single support structure
- Up to 33 kV
| Parameter | Unit | 11 kV | 33 kV |
|---|---|---|---|
| Highest system voltage | kV | 12 | 36 |
| 1 min power-frequency withstand | kV | 28 | 70 |
| Lightning impulse withstand | kVp | 95 | 170 |
| Rated frequency | Hz | 50/60 | 50/60 |
| Total creepage | mm | 300 | 900 |
| Secondary current (CT) | A | 1 or 5 | 1 or 5 |
| Secondary voltage (PT) | V | 110/√3 | 110/√3 |
| Voltage factor | — | 1.2 cont. / 1.5 × 30 s | 1.2 cont. / 1.5 × 30 s |
- IS 2705
- IS 3156
- IS 16227
- IEC 61869
Datasheets, drawings and test certificates for the 11 kV Oil-Cooled CT-PT Combined Unit are shared with our dealers and on request.
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