Optical CT: optical current transformer up to 800 kV, 4000 A
Optical CT is an optical current transformer up to 800 kV with rated current up to 4000 A. It is used for measurement and relay protection at digital HV and EHV substations in place of electromagnetic CTs.
- Voltage class
- up to 800 kV
- Rated current
- up to 4000 A
- Principle
- optical sensor
- Filling
- nitrogen at a pressure slightly above atmospheric
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
An optical sensor measures the current instead of an electromagnetic circuit. The internal volume is filled with nitrogen at a pressure slightly above atmospheric. The unit has no ambient temperature limits. It is designed for digital HV and EHV substations, where it works in measurement and relay protection circuits.
Technical specifications
| Voltage class | up to 800 kV |
|---|---|
| Rated current | up to 4000 A |
| Principle | optical sensor |
| Filling | nitrogen at a pressure slightly above atmospheric |
| Temperature | no ambient temperature limits |
Replacement for
there is no direct equivalent
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
Optical CT: optical current transformer up to 800 kV, 4000 A. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8504 31 29 00 |
|---|---|
| HS, 6 digits | 8504 31 |
| CN (EU) | 8504 31 29 |
| HTSUS (USA) | 8504 31 20 00 |
| China customs tariff | 8504 31 10 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What are the voltage and current of Optical CT?
Voltage class up to 800 kV, rated current up to 4000 A.
What is the optical current transformer filled with?
Nitrogen at a pressure slightly above atmospheric.
Which substations is Optical CT suitable for?
Digital HV and EHV substations, where it replaces electromagnetic CTs in measurement and relay protection circuits.
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