JK / JKO / EGK current and voltage transformers for GIS 72–420 kV
Built-in current transformers and SF6 voltage transformers for GIS 72–420 kV. The CTs are ring-type, single- and three-phase, for currents up to 5000 A.
- CT JK (single-phase, outside enclosure)
- up to 5000 A
- CT JKO (three-phase, inside enclosure)
- up to 4000 A
- VT EGK (single-phase, SF6)
- 72–170 and 245–420 kV
- VT accuracy class
- up to 0.1
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Single-phase JK is installed outside the GIS enclosure and is rated up to 5000 A. Three-phase JKO is placed inside the enclosure, current up to 4000 A. Single-phase SF6 VT EGK is made for 72–170 and 245–420 kV with accuracy class up to 0.1. Gas leakage < 0.1 % per year. The units are intended for gas-insulated switchgear.
Technical specifications
| CT JK (single-phase, outside enclosure) | up to 5000 A |
|---|---|
| CT JKO (three-phase, inside enclosure) | up to 4000 A |
| VT EGK (single-phase, SF6) | 72–170 and 245–420 kV |
| VT accuracy class | up to 0.1 |
| Gas leakage | < 0.1 % per year |
Replacement for
built-in CTs and VTs for GIS 110–500 kV (general type), ЗНГ-110, ТВ-110
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
JK / JKO / EGK current and voltage transformers for GIS 72–420 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8504 31 21 00 8504 31 29 00 |
|---|---|
| HS, 6 digits | 8504 31 |
| CN (EU) | 8504 31 21 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
How do the JK and JKO CTs differ?
JK is single-phase, installed outside the GIS enclosure, up to 5000 A. JKO is three-phase, placed inside the enclosure, up to 4000 A.
What voltages is the EGK VT made for?
For 72–170 and 245–420 kV, accuracy class up to 0.1.
What is the permissible gas leakage?
Less than 0.1 % per year.
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