Air Insulated Switchgear EVA +
Air Insulated Switchgears (EVA + MMMH) are medium voltage switching elements used in the secondary distribution system of electricity at levels of 12 kV, 24 kV, and 36 kV and according to the customer various demands. EVA + Air Insulated Switchgears are extremely suitable for the use in the monoblock concrete substations, prefabricated concrete substations, metallic substations, and special type buildings. Due to its modular structure, EVA + Air Insulated Switchgears can be installed and commissioned with ease and fast manner. In these switchgears, the busbar outputs are insulated by air, while, the electrical switching and breaking operations are performed in either SF6 gas or vacuum environment which by that a maximum safe operation can be achieved. In addition, EVA+ Air Insulated Switchgears have got extra advantage such as withstanding voltage up to 40.5 kV, operating capability at an altitude of 1625m. Furthermore, EVA+ Air Insulated Switchgears have got a digital gas pressure indicator that shows the number of operations in both the disconnector and the load break switch, an audible signal lamp that warns the operator to prevent grounding while the switchgear is energized and last but not least, EVA + Air Insulated Switchgears have the advantage that enables the operator to observe the grounding switch directly by bare eyes which make it an absolute operator friendly. EVA + Air Insulated Switchgears stand out with their metal compartment structure (PM), Loss of Service Continuity class (LSC2B), internal arc classification structure (AFL), and the insulation medium which could be either SF6 gas or vacuum for circuit breakers and SF6 gas for disconnectors. With all the aforementioned advantages EVA + Air Insulated Switchgears show a great competency to their counterparts and offer the selection flexibility preferred by the customers with maximum user and system safety.
| Type | EVA+ MMMH | | | |
| Rated Voltage | 12 kV | 24 kV | 36 kV | 40,5 kV |
| Rated power frequency withstand voltage (Phase-to-phase) (1 min) | 28 kV | 50 kV | 70 kV | 80 kV |
| Rated power frequency withstand voltage (Across isolating distance) (1 min) | 32 kV | 60 kV | 80 kV | 90 kV |
| Rated lightning impulse withstand voltage (Phase-to-phase) | 75 kV | 125 kV | 170 kV | 185 kV |
| Rated lightning impulse withstand voltage (Across isolating distance) | 85 kV | 145 kV | 195 kV | 215 kV |
| Rated frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Rated current | 630-1250 A* | 630-1250 A* | 630-1250 A* | 630-1250 A* |
| Rated short circuit withstand current (1 s) (3s) | 16-20 kA | 16-20 kA | 16-20 kA | 16-20 kA |
| Rated mainly active load breaking current | 630 A | 630 A | 630 A | 630 A |
| Rated transfer current | 630 A | 630 A | 630 A | 630 A |
| Rated peak short circuit withstand current | 40 kA-peak | 40 kA-peak | 40 kA-peak | 40 kA-peak |
| Mechanical endurance class | M1/M2 | M1/M2 | M1/M2 | M1/M2 |
| Electrical endurance class | E3/E2 | E3/E2 | E3/E2 | E3/E2 |
| Capacitive endurance class | C2 | C2 | C2 | C2 |
| Protection class | IP3X | IP3X | IP3X | IP3X |
| Internal arc class | AFL | AFL | AFL | AFL |
| Loss of service continuity class | LSC2A-PI | LSC2A-PI | LSC2A-PI | LSC2A-PI |
| Fuse Length | 358mm | 508mm | 603mm | 603mm |
* Non-Applicable for LBS Cubicles.
| EVA+ 12 kV MV Air Insulated Switchgear | | |
| EVA+-12-S | Incoming Outgoing Cubicle with Load Break Switch (LBS) | view |
| EVA+-12-F | Transformer Protection Cubicle with Fuse and Load Break Switch (LBS) | view |
| EVA+-12-B | Transformer Protection Cubicle with Disconnector and Circuit Breaker (CB) | view |
| EVA+-12-OTOP | Auto-Producer Cubicle with Circuit Breaker (CB) | view |
| EVA+-12-McvL | Current and Voltage Metering Cubicle with Load Break Switch (LBS) | view |
| EVA+-12-Mvi | Auxiliary Transformer Cubicle with Disconnector | view |
| EVA+-12-Mv | Voltage Metering Cubicle with Disconnector | view |
| EVA+-12-CB | Busbar Connection Cubicle with Two Disconnectors and Circuit Breaker (CB) | view |
| EVA+-12-CR | Cable Connection Cubicle | view |
| EVA+-12-DB | Busbar Compartment Cubicle with Circuit Breaker (CB) | view |
| EVA+-12-DS | Busbar Compartment Cubicle with Load Break Switch (LBS) | view |
| EVA+ 24 kV MV Air Insulated Switchgear | | |
| EVA+-24-S | Incoming Outgoing Cubicle with Load Break Switch (LBS) | view |
| EVA+-24-F | Transformer Protection Cubicle with Fuse and Load Break Switch (LBS) | view |
| EVA+-24-B | Transformer Protection Cubicle with Disconnector and Circuit Breaker (CB) | view |
| EVA+-24-OTOP | Auto-Producer Cubicle with Circuit Breaker (CB) | view |
| EVA+-24-McvL | Current and Voltage Metering Cubicle with Load Break Switch (LBS) | view |
| EVA+-24-Mvi | Auxiliary Transformer Cubicle with Disconnector | view |
| EVA+-24-Mv | Voltage Metering Cubicle with Disconnector | view |
| EVA+-24-CB | Busbar Connection Cubicle with Two Disconnectors and Circuit Breaker (CB) | view |
| EVA+-24-CR | Cable Connection Cubicle | view |
| EVA+-24-DB | Busbar Compartment Cubicle with Circuit Breaker (CB) | view |
| EVA+-24-DS | Busbar Compartment Cubicle with Load Break Switch (LBS) | view |
| EVA+ 36 kV MV Air Insulated Switchgear | | |
| EVA+-36-S | Incoming Outgoing Cubicle with Load Break Switch (LBS) | view |
| EVA+-36-S(a) | Incoming Outgoing Cubicle with Disconnector | view |
| EVA+-36-F | Transformer Protection Cubicle with Fuse and Load Break Switch (LBS) | view |
| EVA+-36-B | Transformer Protection Cubicle with Disconnector and Circuit Breaker (CB) | view |
| EVA+-36-OTOP | Auto-Producer Cubicle with Circuit Breaker (CB) | view |
| EVA+-36-McvL | Current and Voltage Metering Cubicle with Load Break Switch (LBS) | view |
| EVA+-36-McvS | Current and Voltage Metering Cubicle with Disconnector | view |
| EVA+-36-Mvi | Auxiliary Transformer Cubicle with Disconnector | view |
| EVA+-36-Mv | Voltage Metering Cubicle with Disconnector | view |
| EVA+-36-McvR | Current and Voltage Metering Cubicle without Disconnector | view |
| EVA+-36-BR | Busbar Riser Cubicle | view |
| EVA+-36-CB | Busbar Connection Cubicle with Two Disconnectors and Circuit Breaker (CB) | view |
| EVA+-36-CR | Cable Connection Cubicle | view |
| EVA+-36-DB | Busbar Compartment Cubicle with Circuit Breaker (CB) | view |
| EVA+-36-DS | Busbar Compartment Cubicle with Load Break Switch (LBS) | view |
| EVA+ 40,5 kV MV Air Insulated Switchgear | | |
| EVA+-40,5-S | Incoming Outgoing Cubicle with Load Break Switch (LBS) | view |
| EVA+-40,5-S(a) | Incoming Outgoing Cubicle with Disconnector | view |
| EVA+-40,5-F | Transformer Protection Cubicle with Fuse and Load Break Switch (LBS) | view |
| EVA+-40,5-B | Transformer Protection Cubicle with Disconnector and Circuit Breaker (CB) | view |
| EVA+-40,5-OTOP | Auto-Producer Cubicle with Circuit Breaker (CB) | view |
| EVA+-40,5-McvL | Current and Voltage Metering Cubicle with Load Break Switch (LBS) | view |
| EVA+-40,5-McvS | Current and Voltage Metering Cubicle with Disconnector | view |
| EVA+-40,5-Mvi | Auxiliary Transformer Cubicle with Disconnector | view |
| EVA+-40,5-Mv | Voltage Metering Cubicle with Disconnector | view |
| EVA+-40,5-McvR | Current and Voltage Metering Cubicle without Disconnector | view |
| EVA+-40,5-BR | Busbar Riser Cubicle | view |
| EVA+-40,5-CB | Busbar Connection Cubicle with Two Disconnectors and Circuit Breaker (CB) | view |
| EVA+-40,5-CR | Cable Connection Cubicle | view |
| EVA+-40,5-DB | Busbar Compartment Cubicle with Circuit Breaker (CB) | view |
| EVA+-40,5-DS | Busbar Compartment Cubicle with Load Break Switch (LBS) | view |
Advantages:
Compact Design
Easy Installation and Changeability Thanks to its Modular Construction
Compatibility with Right-Left Extension When Needed
Intelligent Locking Systems for Maximum Operator Safety
Reliable Switching Within Sf6 Gas Environment
Compatibility with SCADA Systems
Suitable for Easy Transport and Storage
Different Combinations of Feeders According to the Customer’s Requirements
Usage Areas:
Transformer substations
Infrastructure and construction sectors (Ports, train stations, airports, hospitals, schools, hotels, shopping centers, trade centers, holiday complexes etc).
Various industries (water, iron and steel, automotive, oil, etc.)
Power stations
Medium voltage distribution systems
Industrial facilities
Energy sector (Wind power plants, solar power plants, hydroelectric power plants, MV distribution systems, transformer centers)
What’s New?:
For the domestic production, complies with TSE standards
Guarantee for 5 years
The main busbars are 30x10mm thick and dust-resistant with a set of field regulators
A mechanical interlocking system between the disconnector and the circuit breaker is found to ensure the safe switching and to prevent the incorrect operating while the line is energized
Possibility of installation of the overcurrent and short circuit protection relays in any brand and model requested by our customers
Maximum operator safety by the ability to check the position of the earthing switch from the surveillance window in front of the cell
Various operating selectability by remote control or buttons with signal lamps which makes it an operator friendly
Ability to monitor whether the cell is energized or not by the means of the SCADA system which is connected to a voltage indicator
Digital manometer with dual contact and large screen which by that the SF6 gas pressure and temperature could be observed. Also, the disconnector switching numbers is been tracked on this manometer which adds an extra advantage to it in terms of operating
Operator-friendly with an illuminated and audible warning system that warns the operator when the cell is still energized in order to avoid wrong intervention and causing a short circuit by turning the earth switch off
Better insulating property under voltage fluctuations and humid weather conditions with reinforced area regulators
