General view of the Apron already entering the night. The homogeneity of lighting in the area of operations is observed.
View of a tower with the installation completed. All wiring is protected by rigid or flexible metal conduits suitable for outdoor use.
General view of a lighting tower while Ketro staff works on assembling the luminaires.
Detailed view of the assembly of the luminaires and auxiliary equipment. There are no exposed wires left to suffer from the weather.
Detailed view of the fastening system of the galvanized metallic electrical pipes to the structure of the tower.
Detailed view of the system that allows the luminaire to be oriented and adjusted according to project angles.
Project, provision and installation of light aid systems and windsocks in heliports. In this case, a windsock installed in the warehouse heliport in Armavir (ARMENIA) is observed.
View of the approach system (first 900m before the runway) supplemented with a flash system (helps air navigation on foggy days).
View of the approach system turned on (first 900m before the runway) complemented with a flash system (helps air navigation on foggy days).
Efectuamos tareas en todo tipo de climas. En la imagen nuestro personal trabajando sobre pista en servicio, aprovechando un corte momentáneo para la instalación de balizas empotradas frente a una tormenta de verano.
... during night service.
Calibration prior to aerial verification of the PAPI (Precision Approach Path Indicator) system to ensure correct angles. This system visually indicates to the aircraft commander the correct landing angle.
PAPI (Precision Approach Path Indicator) system recently installed at Gyumri City Shirak Airport.
PAPI (Precision Approach Path Indicator) system recently installed at Gyumri City Shirak Airport.
Drilling the runway for the removal (and subsequent relocation) of embedded markers from the runway center line during the resurfacing process. The airport interrupted its operation only 10 hours a day.
Indication signage for aircraft.
Indication signage for aircraft.
Avion verificador en pleno vuelo para recategorización de pista. Se observe how it approaches, the unmistakable and perfect geometry of the lighting and its complete operation. On that occasion, the Center Line and Touch Down Zone systems were replaced with LED lights. Photo 1 of 3.
Avion verificador en pleno vuelo para recategorización de pista. Se observa como se va aproximando, la geometría inconfundible y perfecta de la iluminación y su funcionamiento completo. En tal oportunidad se reemplazaron los sistemas Center Line y Touch Down Zone a luces LED. Foto 2 de 3.
Verifier plane in full flight for runway recategorization. It is observed as it approaches, the unmistakable and perfect geometry of the lighting and its complete operation. On that occasion, the Center Line and Touch Down Zone systems were replaced with LED lights. Photo 3 of 3.
Pumps for impulsion of cold water in the HVAC cooling circuit, flow rate 500 m3/h @ 50mca. They are equipped with speed variators in order to keep the pressure constant regardless of the consumption of the circuit.
Pumps for driving rainwater. Flow rate 1000m3/h@30mca.
Battery of water filters in the water pump machine room.
Pumps for driving cooling water between chiller condensers and cooling towers. Flow rate 400m3/h@40mca.
Pumps for impulsion of cold water in the HVAC cooling circuit, flow rate 500 m3/h @ 50mca. They are equipped with speed variators in order to keep the pressure constant regardless of the consumption of the circuit.
Laying of ladder-type cable trays and cables on it. We attach particular importance to the neatness of the facilities and the "combing" of the drivers.
Laying of ladder-type cable trays and cables on it. We attach particular importance to the neatness of the facilities and the "combing" of the drivers.
Laying of ladder-type cable trays for power cables and blind trays for weak current conductors. On the right, PVC pipes with installation of grounding cables. The red cables are 45kV nominal voltage cables. Sub Station 35/6kV, 12MVA, left side.
Laying of ladder-type cable trays for power cables and blind trays for weak current conductors. The red cables are 45kV nominal voltage cables. Sub Station 35/6kV, 12MVA, right side.
Ketro staff assembling support for cable trays.
Ketro staff assembling support for cable trays.
Ketro personnel connecting cables stretched on trays in a pass-through box.
Ketro staff connecting power cables to transformer.
Hot water boiler room for heating, 3000kW nominal power, dual (methane gas and gas oil).
Hot water boiler room for heating, 950kW nominal power, dual (methane gas and gas oil).
Hot water boiler room for heating with a nominal power of 3000kW. Exhaust gas outlet chimneys.
Water steam generators. Nominal capacity 3000kW, dual (methane gas and gas oil). Like any container that supports pressure and according to its construction standard, periodic requalification may be required to determine its structural integrity. We have professionals specialized in the task. In this case, qualified personnel are observed verifying the integrity of the smoke tube welds by using penetrating inks. On the right you can see the external body of the candera without thermal insulation, which has been removed for this occasion.
Water steam generators. Nominal capacity 3000kW, dual (methane gas and gas oil). Like any container that supports pressure and according to its construction standard, periodic requalification may be required to determine its structural integrity. We have professionals specialized in the task. In this case, qualified personnel are observed verifying the thickness of the steel sheet by ultrasonic method.
Water steam generators. Nominal capacity 3000kW, dual (methane gas and gas oil). Like any container that supports pressure and according to its construction standard, periodic requalification may be required to determine its structural integrity. We have professionals specialized in the task. To carry out these tasks, it is necessary to remove all the thermal insulation to access the steel plate that makes up the container. In this case, Ketro operator replacing the insulation after having carried out the requalification work.
Unloading, positioning and installation of a centrifugal chiller with R123 refrigerant of 1100TR capacity. The 16Tn weight equipment has been installed in a room at sub-floor level.
Installation and commissioning of a centrifugal chiller with R123 refrigerant of 1100TR capacity.
The chemical washing of the condenser of each chiller is carried out annually to eliminate deposits of calcareous material that prevents the correct exchange of heat in the condenser. After this process, the tubes are brushed and finally cleaned with high pressure water.
After chemical washing and mechanical and high-pressure water cleaning, the brass tubes are perfectly clean, without calcareous residues on the internal knurling, which ensures correct heat exchangeability and optimal equipment performance during the summer season.
During the use of the chiller in the summer, the hard water deposits calcium and magnesium salts on the surface of the tubes. At the end of the season, a calcareous layer forms on the surface of the condenser tubes. It prevents the normal heat exchange and lowers the performance of the equipment. Endoscopic view of the tube inside it before chemical washing.
At the end of the chemical washing, the tube is perfectly clean, ensuring optimum performance of the chiller during its operation in summer. Such improvement represents a very significant saving of electrical energy. In extreme cases, the thickness of the calcareous deposit prevents the Chiller from working.
Traditional air injection ducts in galvanized sheet, thermally insulated with glass wool with external aluminum foil. The installation has been coordinated with the laying of electrical cable trays, optimizing and ordering the attic (this is the space above the ceiling and below the concrete slab where most of the installations circulate).
Trunk air ducts (injection and return) in engine rooms. The inlet and outlet connections to the AHUs (Air Handling Units) are observed.
Ducts for discharge of cooling air from large equipment. In this case, a 1,600 kVA emergency generator set.
Design, supply and installation of all kinds of environmental air distribution elements in environments: bars, blinds, dampers, nozzles, etc. etc.
Container for storage of tools and material in movement from a finished work to another to start.
1600kVA emergency generator set, after 10 years of installation and maintenance by Ketro.
Emergency generator set from previous photo, reinstalled at Shirak Airport to power the entire terminal and office sector. The fastening of the silencer and exhaust pipe is observed.
Grupo electrógeno de emergencia de fotografía anterior, reinstalado en Aeropuerto Shirak para la alimentación de todo el sector de terminal y oficinas. Las persianas de paletas opuestas se habren en forma totalmente automática cuando el equipo entra en servicio para despedir el aire de refrigeración hacia el exterior.
Lighting of the facade of the building. General view.
Fachada lado plataforma, arribos (planta baja) y preembarque (planta alta), Terminal 3 Fase 2.
Fachada lado plataforma, arribos (planta baja) y preembarque (planta alta), Terminal 3 Fase 2. Vista general.
Vialidad y canopy frente a sector partidas, Nivel +7,60, Terminal 3 Fase 3.
Road in front of the arrivals sector, Level +0.20 Terminal 3 Phase 3.
Sector control pasaportes en partidas, Nivel +7,60, Terminal 3 Fase3.
Passport control sector in departures, Level +7.60, Terminal 3 Phase3.
Hall público de sector check in, Nivel +7,60, Terminal 3 Fase 3.
Arrivals sector public hall, Level +0.20, Terminal 3 phase 3.
Covered parking, Levels 1, Terminal 3 Phase 3.
Covered parking, Levels 1 and 2, Terminal 3 Phase 3.
We have an electrical engineering department and a thermomechanical engineering department (HVAC Heating Ventilation Air Conditioning) headed by professionals with extensive experience and experience who have worked for us since our inception as a Company. The projects that have been elaborated and are in operation today are developed by interpreting the needs of our Clients, seeking the most optimal technical-economic solution and guaranteeing the project until its start-up. Below are images of the leading professionals and examples of documentation and developments. All these projects have been built and are currently operating optimally.
Warehouse electrical project.
Professional in full development task.
Rack installation.
Wiring and connection of DC systems.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the columns installed with their respective disconnectors. Front.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the columns installed with their respective disconnectors. Side.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the disconnector and the connection in unipolar cables.
High-voltage cells (35kV) that receive the cables from the public lines, divert them to the power transformers and allow the exchange maneuvers.
Existing transformers 35/6kV, 6MVA, with automatic switches that underwent general maintenance. Side view of the connection.
Connections to existing transformers 35/6kV, 6MVA, with automatic switches that underwent general maintenance.
High voltage cells (6kV) that receive power from the power transformers and distribute that voltage within the airport.
Indoor distribution transformers with dry insulation. Installed powers up to 2.5MVA. They then feed the general low voltage distribution boards.
General low voltage switchboard at Zvartnots Airport Terminal 3 Phase 2.
General low voltage switchboard at Zvartnots Airport Terminal 3 Phase 3.
10/0.4kV substation with two transformers of 500kVA each (the one on the left existing from the time of the Soviet Union and the one on the right new with oil bath insulation). There is a disconnector that derives to feed a third transformer also 500kVA at a distance of 400m. They all feed a winery in the town of Armavir.
Refrigerated storage at Zvartnots Airport (Armenia). For it, the electrical power supply was carried out, starting from the 6kV distribution power supply at the Airport. Packaged electrical substation and 800kVA emergency generator set.
Sub estación 6/0,4kV que incluye: celda de entrada en 6kV; Transformador de aislación seca 6/0,4kV; Tablero general para alimentación del almacenamiento refrigerado.
n Main distribution board. In LV (0.4kV). They distribute the power supplies to other sectional panels or specific loads.
Sectional boards. In LV (0.4kV). They distribute power supplies and lighting circuits, outlets and other loads (eg elevators).
CCM (Motor Control Center) type boards for powering HVAC equipment. AHUs (Air Treatment Units); extractor fans; Air conditioning equipment.
CCM type boards. Ketro staff carrying out periodic cleaning.
Boards for specific uses, as in this case, for power supply and control of a sewage treatment plant.
In the process of dismantling for annual maintenance, prior to the start of the summer season.
Chiller condenser water return distribution pipes, mains water supply and chilled water supply to the chillers.
Under annual maintenance. Partial cleaning of the filling by hydrowashing.
Cleaning of water distribution nozzles on the exchange fill. Once the task is completed, the proper functioning of all is verified.
Smoke extractor fan in the attic of the airport terminal.
Combustion gas extractor fan on the maneuvering area of tractors that pull the luggage carts in the distribution belt sector.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Supervisors in action.
Trunk air ducts (injection and return) in engine rooms. The inlet and outlet connections to the AHUs (Air Handling Units) are observed.
Periodic cleaning of the water filters. Each system is equipped with a differential pressure gauge that allows knowing the pressure drop in the filter, avoiding unnecessary openings.
Screw chiller maintenance, with R134 refrigerant of 300TR capacity. Within the preventive maintenance system, an annual control of the level and condition of the oil is carried out. The figure shows the sight glass that marks the oil level above the minimum level of 50mm in the crankcase.
Lighted tower in twilight hours.
Provision and installation of UPSs. In this case, two combined units of 200kVA each for the service of the data systems of the airport terminal. General view of the apron late at night. The homogeneity of lighting in the area of operations is observed.
View of a tower with the installation completed. All wiring is protected by rigid or flexible metal conduits suitable for outdoor use.
Detailed view of the assembly of the luminaires and auxiliary equipment. There are no exposed wires left to suffer from the weather.
Detailed view of the assembly of the luminaires and auxiliary equipment. There are no exposed wires left to suffer from the weather.
Detailed view of the fastening system of the galvanized metallic electrical pipes to the structure of the tower.
Detailed view of the system that allows the luminaire to be oriented and adjusted according to project angles
Project, provision and installation of light aid systems and windsocks in heliports. In this case, a windsock installed in the warehouse heliport in Armavir (ARMENIA) is observed.
View of the approach system (first 900m before the runway) complemented by a flash system (helps air navigation on foggy days)
We carry out tasks in all types of climates. In the image our staff working on the runway in service, taking advantage of a momentary outage for the installation of embedded beacons in the face of a summer storm.
We carry out tasks in all types of climates. In the image our staff working on the runway in service, taking advantage of a momentary outage for the installation of embedded beacons in the face of a summer storm.
Balizamiento encendido durante servicio nocturno.
Calibration prior to aerial verification of the PAPI (Precision Approach Path Indicator) system to ensure correct angles. This system visually indicates to the aircraft commander the correct landing angle.
PAPI (Precision Approach Path Indicator) system recently installed at Gyumri City Shirak Airport.
PAPI (Precision Approach Path Indicator) system recently installed at Gyumri City Shirak Airport.
Drilling the runway for the removal (and subsequent relocation) of embedded markers from the runway center line during the resurfacing process. The airport interrupted its operation only 10 hours a day.
Indication signage for aircraft.
Indication signage for aircraft.
Indication signage for aircraft.
Verifier plane in full flight for runway recategorization. It is observed as it approaches, the unmistakable and perfect geometry of the lighting and its complete operation. On that occasion, the Center Line and Touch Down Zone systems were replaced with LED lights. Photo 3 of 3.
Verifier plane in full flight for runway recategorization. It is observed as it approaches, the unmistakable and perfect geometry of the lighting and its complete operation. On that occasion, the Center Line and Touch Down Zone systems were replaced with LED lights. Photo 2 of 3.
Pumps for driving rainwater. Flow rate 1000m3/h@30mca.
Pumps for driving rainwater. Flow rate 1000m3/h@30mca.
Battery of water filters in the water pump machine room.
Pumps for driving cooling water between chiller condensers and cooling towers. Flow rate 400m3/h@40mca.
Pumps for driving cooling water between chiller condensers and cooling towers. Flow rate 400m3/h@40mca.
Laying of ladder-type cable trays and cables on it. We attach singular importance to the neatness of the facilities and the “combing” of the dei drivers
Laying of ladder-type cable trays and cables on it. We attach singular importance to the neatness of the facilities and the “combing” of the drivers.
Laying of ladder-type cable trays for power cables and blind trays for weak current conductors. On the right, PVC pipes with installation of grounding cables. The red cables are 45kV nominal voltage cables. Sub Station 35/6kV, 12MVA, left side.
Laying of ladder-type cable trays for power cables and blind trays for weak current conductors. The red cables are 45kV nominal voltage cables. Sub Station 35/6kV, 12MVA, right side.
Ketro staff assembling support for cable trays.
Ketro personnel connecting cables laid on trays in the pass box
Ketro personnel connecting cables laid on trays in the pass box
Ketro personnel connecting cables laid on trays in the pass box
Hot water boiler room for heating, 3000kW nominal power, dual (methane gas and gas oil).
Hot water boiler room for heating, 950kW nominal power, dual (methane gas and gas oil).
Hot water boiler room for heating with a nominal power of 3000kW. Exhaust gas outlet chimneys.
Water steam generators. Nominal capacity 3000kW, dual (methane gas and gas oil). Like any container that supports pressure and according to its construction standard, periodic requalification may be required to determine its structural integrity. We have professionals specialized in the task. In this case, qualified personnel are observed verifying the integrity of the smoke tube welds by using penetrating inks. On the right you can see the external body of the candera without thermal insulation, which has been removed for this occasion.
KODAK Digital Still Camera.
Generadores de vapor de agua. Capacidad nominal 3000kW, duales (gas metano y gas oil). Como todo recipiente que soporta presión y según su norma constructiva, pueda que se requiera una recalificación periódica para determinar su integridad estructural. Contamos con profesionales especializados en la tarea. Para efectuar dichas tareas, se requiere el retiro de toda la aislación térmica como para acceder a la chapa de acero que conforma el recipiente. En este caso, operario Ketro reponiendo la aislación luego de haber efectuado el trabajo de recalificación.
Unloading, positioning and installation of a centrifugal chiller with R123 refrigerant of 1100TR capacity. The 16Tn weight equipment has been installed in a room at sub-floor level.
Installation and commissioning of a centrifugal chiller with R123 refrigerant of 1100TR capacity.
The chemical washing of the condenser of each chiller is carried out annually to eliminate deposits of calcareous material that prevents the correct exchange of heat in the condenser. After this process, the tubes are brushed and finally cleaned with high pressure water.
After chemical washing and mechanical and high-pressure water cleaning, the brass tubes are perfectly clean, without calcareous residues on the internal knurling, which ensures correct heat exchangeability and optimal equipment performance during the summer season.
During the use of the chiller in the summer, the hard water deposits calcium and magnesium salts on the surface of the tubes. At the end of the season, a calcareous layer forms on the surface of the condenser tubes. It prevents the normal heat exchange and lowers the performance of the equipment. Endoscopic view of the tube inside it before chemical washing.
At the end of the chemical washing, the tube is perfectly clean, ensuring optimum performance of the chiller during its operation in summer. Such improvement represents a very significant saving of electrical energy. In extreme cases, the thickness of the calcareous deposit prevents the Chiller from working.
Traditional air injection ducts in galvanized sheet, thermally insulated with glass wool with external aluminum foil. The installation has been coordinated with the laying of electrical cable trays, optimizing and ordering the attic (this is the space above the ceiling and below the concrete slab where most of the installations circulate).
Traditional air injection ducts in galvanized sheet, thermally insulated with glass wool with external aluminum foil. The installation has been coordinated with the laying of electrical cable trays, optimizing and ordering the attic (this is the space above the ceiling and below the concrete slab where most of the installations circulate).
Ducts for discharge of cooling air from large equipment. In this case, a 1,600 kVA emergency generator set.
Project, supply and installation of all kinds of environmental air distribution elements in environments: bars, blinds, dampers, nozzles, etc. etc.
1600kVA emergency generator set, after 10 years of installation and maintenance by Ketro
1600kVA emergency generator set, after 10 years of installation and maintenance by Ketro
Emergency generator set from previous photo, reinstalled at Shirak Airport to power the entire terminal and office sector. The fastening of the silencer and exhaust pipe is observed.
Emergency generator set from previous photo, reinstalled at Shirak Airport to power the entire terminal and office sector. Opposed blade louvers open fully automatically when the unit is put into service to exhaust cooling air to the outside.
Emergency generator set from previous photo, reinstalled at Shirak Airport to power the entire terminal and office sector. Opposed blade louvers open fully automatically when the unit is put into service to exhaust cooling air to the outside.
Lighting of the facade of the building. General view
Platform side facade, arrivals (ground floor) and pre-boarding (upper floor), Terminal 3 Phase 2. General view.
Road and canopy in front of the departures sector, Level +7.60, Terminal 3 Phase 3.
Road in front of the arrivals sector, Level +0.20 Terminal 3 Phase 3.
Passport control sector in departures, Level +7.60, Terminal 3 Phase3.
Public hall of the check-in sector, Level +7.60, Terminal 3 Phase 3.
Public hall of the check-in sector, Level +7.60, Terminal 3 Phase 3.
Arrivals sector public hall, Level +0.20, Terminal 3 Phase3.
Covered parking, Levels 1, Terminal 3 Phase 3.
Covered parking, Levels 1 and 2, Terminal 3 Phase 3.
We have an electrical engineering department and a thermomechanical engineering department (HVAC Heating Ventilation Air Conditioning) headed by professionals with extensive experience and experience who have worked for us since our inception as a Company. The projects that have been elaborated and are in operation today are developed by interpreting the needs of our Clients, seeking the most optimal technical-economic solution and guaranteeing the project until its start-up. Below are images of the leading professionals and examples of documentation and developments. All these projects have been built and are currently operating optimally.
Warehouse electrical project.
Professional in full development task.
Rack Installation.
Wiring and connection of DC systems.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the columns installed with their respective disconnectors. Forehead.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the columns installed with their respective disconnectors. Side.
Transition of two existing Soviet lines (right) to underground cable (left) with ethylene-propylene rubber insulation at 35kV. Detail of the disconnector and the connection in unipolar cables.
High voltage cells (35kV) that receive the cables from the public lines, divert them to the power transformers and allow the exchange operations.
High voltage cells (35kV) that receive the cables from the public lines, divert them to the power transformers and allow the exchange operations.
Connections to existing transformers 35/6kV, 6MVA, with automatic switches that underwent general maintenance.
Suministro e instalación de SAIs. En este caso, dos unidades combinadas de 200kVA cada una para el servicio de los sistemas de datos de la terminal aeroportuaria.
Indoor distribution transformers with dry insulation. Installed powers up to 2.5MVA. They then feed the general low voltage distribution panels.
Indoor distribution transformers with dry insulation. Installed powers up to 2.5MVA. They then feed the general low voltage distribution boards.
General low voltage switchboard at Zvartnots Airport Terminal 3 Phase 3.
10/0.4kV substation with two transformers of 500kVA each (the one on the left existing from the time of the Soviet Union and the one on the right new with oil bath insulation). There is a disconnector that derives power from a third transformer also 500kVA at a distance of 400m. They all feed a winery in the town of Armavir.
Refrigerated storage at Zvartnots Airport (Armenia). For it, the electrical power supply was carried out, starting from the 6kV distribution power supply at the Airport. Packaged electrical substation and 800kVA emergency generator set.
6/0.4 kV substation that includes: 6kV input cell; Dry insulation transformer 6/0.4kV; General board for refrigerated storage power supply.
Main distribution board. In LV (0.4 kV). Distribute the power supplies to other sectional panels or specific loads.
Sectional boards. In LV (0.4kV). They distribute power supplies and lighting circuits, outlets and other loads (eg elevators).
CCM (Motor Control Center) type cards for powering HVAC equipment. UTA (air handling unit); Extractor fans; Conditioning equipment.
CCM type boards. Ketro staff carrying out periodic cleaning.
Boards for specific uses, as in this case, for power supply and control of a sewage treatment plant.
In the process of dismantling for annual maintenance, prior to the start of the summer season.
Chiller condenser water return distribution pipes, mains water supply and chilled water supply to the chillers.
Under annual maintenance. Partial cleaning of the filling by hydrowashing.
Cleaning of water distribution nozzles on the exchange fill. Once the task is completed, the proper functioning of all is verified.
Smoke extractor fan in the mezzanine of the airport terminal.
Combustion gas extractor fan on the maneuvering area of tractors that pull the luggage carts in the distribution belt sector.
