EJGF — SF6 combined current and voltage transformer, 245–550 kV
EJGF SF6 combined current and voltage transformer for 245–550 kV substations, primary current up to 5000 A. The VT is located in the upper part and the CT core in the lower part of the head.
- Rated voltage
- 245–550 kV
- Primary current
- up to 5000 A
- Short-time thermal current
- up to 80 kA / 3 s
- Dynamic withstand current
- up to 200 kA
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
SF6 insulation, polymer insulator, monitored gas density. Short-time thermal current up to 80 kA for 3 s, dynamic current up to 200 kA. Up to 8 CT windings and up to 5 VT windings. CT accuracy classes 0.1–3, P, PR, PX, TPS, TPX, TPY, TPZ; VT classes 0.1–3, 3P and 6P. A common CT and VT housing reduces the number of units in the switchyard.
Technical specifications
| Rated voltage | 245–550 kV |
|---|---|
| Primary current | up to 5000 A |
| Short-time thermal current | up to 80 kA / 3 s |
| Dynamic withstand current | up to 200 kA |
| CT accuracy classes | 0.1–3; P; PR; PX; TPS; TPX; TPY; TPZ |
| VT accuracy classes | 0.1–3; 3P; 6P |
| Windings | up to 8 CT windings, up to 5 VT windings |
| Insulation | SF6 |
Replacement for
no direct analog (combined CT + VT units were not produced in series); pairs ТРГ-220 + ЗНОГ-220, ТРГ-500 + НДЕ-500-72
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
EJGF — SF6 combined current and voltage transformer, 245–550 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 many secondary windings can the EJGF have?
Up to 8 current transformer windings and up to 5 voltage transformer windings.
What accuracy classes do the CT and VT have?
The CT is available in classes 0.1–3, P, PR, PX, TPS, TPX, TPY, TPZ. The VT in classes 0.1–3, 3P and 6P.
What networks and short-circuit currents is the unit rated for?
For 245–550 kV substations with a primary current up to 5000 A. Thermal withstand 80 kA / 3 s, dynamic 200 kA.
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