MV Front Circuit Breaker
3 epoxy insulated pole housings are filled with SF6 Gas and their sealing is guaranteed for life.
The explosion-proof reliability of gas-filled pole epoxy enclosures is ensured by the safety membrane on the bottom cover.
The control mechanism can be installed manually or by motor using a lever. The installed mechanism has accumulated energy for closing and opening. Closing and opening operations can be done with buttons or remote coils.
The circuit breakers are available with front and side mechanisms.
4NA + 4NK or 6NA + 6NK auxiliary contact options for OPEN and CLOSED positions can be optionally selected.
MV Internal / External Type Fuses
With MV High Breaking Fuses, you can protect your devices and plants in 36 kV voltage class against the bad effects of short circuits.
Although there are various types of MV Fuses, CURRENT LIMITER types are preferred all over the world because they are safer and more economical. These types operate silently in a fully enclosed system. No flame or gas overflow when operating. Therefore, it does not require additional devices such as filters, flame cells, special valves, etc.
External Type Disconnector
The disconnectors are suitable for distribution networks with voltages up to 36 kV. In medium and high voltage systems, the circuit is capable of switching on and off when no load. We have two varieties, External and Internal Type. Normal, Grounded, Fused and Fused Grounded are divided into four categories. The disconnectors are three-pole and can be mounted on a wall or a vertical plane, all poles controlled by a common control mechanism. Disconnectors can be opened and closed under voltage and cannot be opened and closed under load. EFO branded separators are manufactured in accordance with TS EN 62271-102 standard and with ISO 9001-2000 assurance.
Polymer Disconnector – Medium Voltage Disconnector
In medium and high voltage systems, switchgear devices which can open and close the circuit in no-load condition after disconnection of the line current and form a separation gap in open position. They cannot perform opening and closing maneuver when there is current on the transmission line. The purpose of the disconnectors to open the unloaded circuit is to isolate the circuit and provide a safe operation. We have 36 kV, 24 kV, 12 kV production alternatives.
Medium Voltage Polymer Composite Chain Insulators
HC Series Medium Voltage Polymer Composite Chain Insulators
Such polymer insulators are used in medium voltage distribution power transmission lines. It is preferred in areas where marine and industrial pollution is high due to its high hydrophobic properties, providing better insulation, composite insulator being puncture-proof type, ease of installation, and being lighter than porcelain insulator and glass insulator.
- 36 kV 40 kN
- 36 kV 70 kN
- 36 kV 100 kN
All type and design tests have been successfully performed in accredited laboratories abroad.
Polymer Surge Arrester
MV surge arresters are used in distribution and station systems to protect transformers and other network elements against excessive system voltages caused by the atmosphere and operating conditions.
Metal Oxide type surge arresters are designed in such a way that there is no negative effect on the energy system at normal operating voltage, but not possible damage in typical fluctuations in the network. This property of the surge arresters is due to the voltage-current characteristics of the highly variable metal oxide resistors. This variability is much higher than SiC surge arresters.
- 3 – 45 kV DM (Class 1, 5kA) Silicon Polymer Enclosed Metal Oxide Surge Arrester
- 3 – 45 kV DH (Class 1, 10kA) Silicon Polymer Enclosed Metal Oxide Surge Arrester
- 3 – 45 kV SL (Class 2) Silicon Polymer Enclosed Metal Oxide Surge Arrester
- 3 – 45 kV SM (Class 3) Silicon Polymer Enclosed Metal Oxide Surge Arrester