Current & Potential Transformers (CT/PT)
Resin-cast and oil-filled instrument transformers for metering and protection duty.
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Instrument transformers supplied to the ratio, burden and accuracy class your scheme actually requires — metering cores at class 0.2S or 0.5S, protection cores at 5P10 or 5P20 with the knee-point voltage calculated for the relay and lead burden. Every unit is routine tested for ratio, polarity and insulation, and supplied with its own test certificate.
Technical specifications
| Voltage class | 415 V to 33 kV |
|---|---|
| CT ratio | 50/5 A to 2000/5 A |
| Accuracy class | 0.2S / 0.5S metering, 5P10 / 5P20 protection |
| Burden | 5 VA – 30 VA |
| Insulation | Resin cast or oil filled |
| Standard | IS 2705 / IS 3156 / IEC 61869 |
Specifications are indicative. Final ratings are confirmed against your site conditions and the approved make.
Applications
- Metering and protection circuits
- Panel instrumentation and transducers
- Substation protection schemes
- Energy audit and check metering
Interested in the Current & Potential Transformers (CT/PT)?
Tell us the rating and quantity you need. We will confirm availability, price and delivery — and quote the installation too if you want it commissioned.
More from Metering & Instrument Transformers
Equipment commonly specified alongside this item.
Supply only, or supply and install?
We deliver material against your BOQ with full test documentation — and can erect, test and commission it under the same contract.