Electroalfa is a manufacturer with an extensive experience in the assembly of low voltage equipment having a portfolio with a full range of products:
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PC/MCC Low voltage distribution panels DISMOD T3N Type, In≤ 6300A
Our own concept switchboard, the DISMOD T3N was completed based on the principles of modularity, currently offering what we think is the best quality and technical performance for a wide range of applications in low voltage networks.
The new generation T3N DISMOD panels improves the design of the previous family of low voltage switchboards (Dismod and Dismod T3) made by Electroalfa, improves the main technical performances and improves and extends the scope.
Completed based on the principles of modularity and versatility, the DISMOD T3N family panels lends itself to various applications of electrical drives (frequency converters, progressive starters, variable speed for DC motors, electric drive for special electric motors) and automation (automatic change over systems, processes monitoring and/ or control, data transmissions).
DISMOD T3N has applications in industry, in the commercial sector as well as in the tertiary sector, regardless of the complexity of the application, for a wide range of end user’s requirements.
The DISMOD switchboards represent the perfect combination of technical performance (top technical parameters, quality, operational reliability, flexibility, modular technology) and economic efficiency.
In addition to high quality products, we provide our customers with technical support for installation and commissioning, operating personnel training, maintenance and repairs during warranty, post-warranty service.
Type Test
The special performances of this electrical panel are certified by tests carried out in accordance with European standard IEC 61439 in national and international testing laboratories. The authorized trial labs where the tests were conducted are IPH Berlin (par of CESI Italy) and ICMET Craiova. The tests carried out in the CESI/ IPH Berlin lab are ASTA certified.
Electrical Technical Characteristics | |
Rated voltage Un for the main circuit | maximum 690 Vac |
Rated voltage Un for the secundary circuit | maximum 230 Vca or 220 Vcc |
Rated voltage for operation Ue for the main circuit | maximum 690 Vac ±10% |
Rated voltage for operation Ue for the secondary circuit | maximum 230 Vca ±10% sau 220 Vcc ±10% |
Rated insulating voltage Ui for the main circuit | maximum 1000 V |
Rated insulating voltage Ui for the secondary circuit | maximum 300 V |
Rated impulse withstand voltage Uimp for the main circuit | 8 kV; 12 kV |
Rated impulse withstand voltage Uimp for the secondary circuit | 4 kV; 6kV pentru Ui=300 V |
Rated current of the unit InA | 5850 A la Ta = +35ºC 5000 A la Ta = +50ºC |
Rated current for operation of BCP | maximum 6300 A |
Rated current for operation of BCD for fixed functional units | 2500 A; 2000 A |
Rated current for operation of BCD for withdrawable/removable functional units | 1000 A; 1250 A; 1500 A |
Rated peak withstand current Ipk of BCP | 286 kA |
Rated peak withstand current Ipk of BCD | 220 kA |
Rated peak withstand current Ipk of of the protection circuit | 171,6 kA |
Rated short-term withstand current Icw of BCP | 130 kA/1s |
Rated short-term withstand current Icw of BCD | 100 kA/1s |
Rated short-term withstand current Icw of of the protection circuit | 78 kA/1s |
Time duration for Icw | 1s |
Rated diversity coefficient (RDF) | 0,8 |
Rated frequency fn | 50 Hz or 60 Hz |
Grounding diagram, according to 3.3.2 of NP – I7 – 2011 | TN-C or TN-C-S – at the user’s request TN-S, IT or TT – for special orders |
Mechanical Technical Characteristics | |
Earthquake resistance – according to SR EN 600368-3-3 | 0,5g; 1÷35Hz; 20s; biaxial; k=2; G=1,5 |
Resistance to free electric arc produced by an internal flaw – according to IEC TR 61641 | 80 kAef/0,3 s |
IP Protection Class – according to SR EN 60529 | IP20; IP40; IP41; IP 43 (IP54 at the user’s request) |
IK protection degree against mechanical impacts - conform SR EN 62262 | IK09 |
Number of functional units on the column (section) | maximum 48 |
Form of internal separation | 2a; 2b; 3a; 3b; 4a; 4b |
Column height | 2300 mm |
Column width | 300 mm ÷ 1200 mm |
Column depth | 700 mm; 1000mm; 1300mm |
PC/MCC Low voltage distribution panels DISMOD T3, In≤ 5000A
DISMOD T3 low voltage main distribution board represent the optimal solution for a diverse range of applications in the low voltage networks (energy, infrastructure, industry, buildings).
Technical data | |
Rated voltage Ue | 690V |
Rated current In | 5000A |
Rated short-time withstand current Icw/1sec | 100kA |
Rezistenta la actiunea arcului electric | 80kA/0,3sec |
Partition | up to 4b |
MCC-DISMOD In ≤3200A type low voltage distribution board, equipped with withdrawable slide-boxes and compartments, represent the optimal solution in electrical distribution, automation, motors control and protection, for all the industrial processes.
Technical data | |
Rated voltage Ue | 690Vac |
Rated current In | 3200A |
Rated short-time withstand current Icw/1sec | 80kA |
Resistence to electric arc | 80kA/0,3sec |
Partition | up to 4b |
Low voltage distribution panels for commercial and residential buildings XENERGY, Prisma Plus System, XL3 4.000
The distribution panels are electrical power distribution equipments for low voltage, realising the consumers powering-up from one, two or more energy sources.
Technical data | |
Insulated voltage | 660 V ca |
Rated voltage | 400; 500 V ca ±10% |
Rated impulse withstand voltage (Uimp) | 8kV |
Rated frequency | 50/ 60 Hz |
Main busbar | |
- rated current - rated short-time withstand current (Icw/1s) - rated peak withstand current (Ipk) | 630/ 1000 A maximum 25 kAef maximum 50 kAef |
Distribution busbar | |
- rated current - rated short-time withstand current (Icw/1s) - rated peak withstand current (Ipk) | -630/ 1000 A maximum 25 kAef maximum 50 kAef |
Normal protection degree | IP31/ IP41 (IP54 by request) |
Partitie | 2b/ 3b |
Main and secondary distribution boards
The electrical panels of this category are dedicated to customized applications for the distribution of energy inside buildings (commercial and business buildings, sports and cultural centers, industrial units and warehouses, office buildings, residential building complex, hotels, hospitals). The specificity of these applications has determined us to design a product where safety and reliability came first, but also in view of reducing to a maximum the time required for the interventions and/or future extensions.
At our clients’ request, we can provide technical support for the project’s design and implementation activity, technical assistance for mounting and commissioning the executed electrical panel, training of the operating personnel, maintenance and repair services for the warranty period, post-warranty service.
Technical Characteristics | |
Rated insulating voltage (Ui) | 1000 Vca |
Rated voltage of operation (Ue) | maximum 690V ca ±10% |
Rated impulse withstand voltage (Uimp) | 8kV |
Rated current (In) | 50 Hz |
Curent nominal (In) | 3200A |
Rated short-term current (Icw/1sec) | 80kA |
Resistance to the action of the electric arc | 80kA/0,3sec |
Normal protection degree | IP31/ IP41 (IP54 on demand) |
Form of internal separation | 2b/ 3b |
Industial automation and control switchboards
The industial automation and control switchboards produced by Electroalfa are designed for the technological installations in the following fields of activity:
- Transport and distribution of electrical energy
- Water infrastructure: production/ transport drinkable water, collection/ treatment of waste water, irrigations/draining works
- Climatization (HVAC) of civil and industrial buildings
- Petrochemistry
- Oil and gas extraction/transport
Depending on the client’s request, Electroalfa can perform and finalize the entire set of specific activities for these product categories:
- Application analysis
- Elaboration of the technical solution in principle
- Elaboration of the Technical Project
- Elaboration of Execution Documentation
- Fabrication and testing in the factory
- Technical assistance for mounting
- Commissioning and testing in installation
- Training of operating and maintenance personnel
- Post-warranty maintenance and service
- Modernization and upgrade
The industial automation and control switchboards can be produced as independent or integrated equipment in other manufacturing units of Electroalfa or other producers.
The technical solutions used by Electroalfa in the realization of industrial automatizations are based on PLC equipment type, Operating Panel, active devices for data communication and IBM PC compatible computers, their selection being determined by the functional requirements. Typical functions that can be executed include:
- Industrial monitoring and process control (SCADA)
- Control and data acquisition in the electrical energy distribution (tele-measurement, remote control, A.A.R., D.A.S.)
- Technical and energetic management of buildings (BMS)
For the manufacturing of panels and sub-units of industrial automatizations, Electroalfa uses specific equipment made by well-known brands, such as SIEMENS, EATON, Schneider Electric, Wago.
For the manufacturing of electronic controls, Electroalfa offers to the clients products based on equipment of the following type:
- Soft Starter
- Frequency Convertor
- Speed variator for continuous current motor
For the manufacturing of panels and sub-units of electronic controls, Electroalfa uses products made by well-known brands, such as SIEMENS, EATON, Schneider Electric, ABB, Danfoss, Rockwell Automation.
Control and protection panels for high voltage electrical substations
The 110 kV control and protection panels are aimed for transformer substations (mostly aimed aelectrical power supply and distribution companies) to provide protection, control, interlocking, automation and SCADA functions. The protection systems are performant and their configuration is compatible and integrated into the control-protection systems with hierarchical, distributed and open type architecture, fully redundant and dedicated to the present EMS/ SCADA applications.
Configuration types:
- 110kV lines protection panels
- 110/20(6)kV transformer protection panels
- 110kV coupling protection panels
- SCADA panels
- Arc-suppression coil automation panels
Compliant with the technical standards of nationwide power generation, transport and distribution companies such as Transelectrica (the national transmission operator), CEZ Group, E.ON Group, Electrica Group (area distribution operators).
Depending on the application, the numerical terminals can have a different number of DI digital inputs, AL analogical inputs and DO digital outputs, different supply voltage and graphic or alpha-numeric display. The communication protocol will be selected depending on the requirements of the SCADA system where the protection equipment will be integrated, the most usual one being IEC 61850.
Technical Characteristics | |
Rated voltage [Un] | - circuit measure 100√3 Vca - circuit protection 100 Vca |
Rated frequency [fn] | 50Hz± 5% |
Operating voltage of primary equipment [Up] | 6 ÷ 110kV |
Trafo current transformation ratio | 50 ÷ 4000 / 5 / 5 A |
Trafo voltage transformation ratio | 6 ÷ 110 kV/ 100V / 100√3V |
Voltage of secondary and control circuits | 24, 48, 110, 220 Vdc br> 100, 110, 230 Vac |
Protection degree | IP31 |
Normal Operating Conditions | |
Mounting place | interior; in the control room |
Temperature of the environment during operation | -5÷40°C |
Temperature of the environment during transportation, storing and mounting | -25÷50°C |
Average environment temperature in 24h | 35°C |
Air relative humidity | maximum 50% at 40°C |
Maximum altitude | 2000 m |
Pollution class | 3 |
Resistance to vibrations, shocks, earthquakes | Class 1 |
Over-voltage class | class III |
Electromagnetic media | medium A |
Lifetime | 25 years |
400/230 Vac and 48…220Vdc auxiliary services cabinets
The 400/230 Vac and 48…220Vdc auxiliary services cabinets are designated to supply the low voltage consumers within the 110/20(6)kV transformer substations of the power supply and distribution companies: Electrica SA, CEZ Group, ENEL Group, E.ON Group; Transelectrica’s 400/220/110kV connection and transformer substations; hydro power plants; thermal power plants.
Technical data | Alternativ current | Direct current |
Rated voltage Ue | maximum 400Vca | maximum 220Vcc |
Rated current In | maximum 630A | maximum 250A |
Rated short-time withstand current Icw/1sec | 25kA | 16kA |
Protection degree | IP43 | IP43 |
Consumers of own services are supplied partly with alternative current at the voltage of 400/230 VAC (except certain consumers, for whom the labor safety requirements impose the use of lower voltages) and partly continuous current, the possible voltages being 24, 48, 110, 220 VDC.
As a general rule, the installation of the main distribution of a.c. comprises a simple bar system divided into two sections by cross coupling, the supply of the own service bars being made from the own service transformers, which can supply each the entire power requested by the own service consumers. The two sources can function permanently connected or with a source normally disconnected, playing a role of backup, with the possibility of designing an AAR installation for the automatic selection of the supply source.
For supplying the continuous current consumers, beside the rectifiers connected to the own service bars of alternative current, usually there is an independent source made up of one or two batteries. The installation of main continuous current distribution is generally made up of a simple collector bars system divided in two sections by cross coupling.
Technical Characteristics | Cabinets of alternative current services: |
Rated voltage of operation (Ue) | 400/230V |
Rated voltage of insulation (Ui) | 690V |
Rated frequency (fn) | 50Hz |
Rated impulse withstand voltage (Uimp) | 8kV |
Rated current (In) | 630A |
Rated short-term withstand current (Icw/1s) | 25kA |
Rated peak withstand current (Ipk) | 52,5kA |
Cabinets of continuous current service: | |
Rated voltage of operation (Ue) | 24, 48,110 VDC |
Rated voltage of insulation (Ui) | 690V |
Rated impulse withstand voltage (Uimp) | 8kV |
Curent nominal (In) | maximum 250A |
Rated short-term withstand current (Icw/1s) | 16kA |
Rated peak withstand current (Ipk) | 32kA |
Operation Conditions | |
Climate group | WDr/CT(moderate climate: hot/dry/temperate cold) |
Mounting place | interior |
Temperature of the ambient environment during operation | -10°C…+40°C |
Temperature for the duration of transportation, storing and mounting | -40°C…+55°C |
Humidity | 50% at +40°C, 90% at +20°C |
Maximum altitude | 2000 m |
Pollution degree | 3 |
Over-voltage category | categoria III |
Electromagnetic media | mmedium A |
Protection degree | IP43 |
Assemblies for power distribution in public networks
Electroalfa assemblies for power distribution in public networks are equipped with the safest and most reliable. Judiciously tested and evaluated in the authorised laboratories in Romania, our products comply with the latest European standards. Our products comply with the technical standards of the companies providing power generation, transport and distribution nationwide as Transelectrica (the national energy transmission operator), CEZ Group, E.ON Group, Electrica Group (area distribution operators).
Distribution panels for transformer substations
The distribution panels are used in network transformer substations, equipped with 250 ÷ 630 (1000) kVA, 20/0, 4kV power transformer, for supplying power to public buildings, residential, commercial, industrial consumers and street lighting.
Technical data | |
Rated power | 250÷630 (1000)kVA |
Thermal and usage rated current/td> | 360A÷910 (1440)A |
Current transformers current | 400÷1000 (1500)/ 5A, class 0,5 |
Rated voltage | 400/ 230 V ca |
Insulation voltage | 690 V c.a. |
Rated frequency | 50 Hz |
Normal protection degree | IP 00 (open variant); IP 20 (semi-closed variant) |
0,4kV power distribution panel
The distribution panels are designed for network transformers substations on one or two pillars, equipped with 40÷250 (400)kVA, 20/0, 4kV power transformers.Their role is to supply rural /suburban consumers and for street lighting.
Type:
- metallic enclosure
- polycarbonate enclosure
Technical data | |
Rated power | 40÷250 (400)kVA |
Thermal and usage rated current | 58A÷362 (578)A |
Current transformers current | 50÷400 (600)/ 5A, class 0,5 |
Rated voltage | 400/ 230 V c.a. |
Insulation voltage | 690 V c.a. |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 (metallic enclosure); IP 44 (polycarbonate enclosure) |
Connection box
The connection box is used in low voltage distribution networks for supplying power to household users (apartment buildings, houses, etc.) and to public administration buildings.
Type:
- metallic enclosure
- polycarbonate enclosure
Technical data | |
Rated current | maximum 400 A main circuits; maximum 160 A secondary circuits |
Rated voltage | 400/ 230 V c.a. |
Insulation voltage | 690 V c.a. |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 (metallic enclosure); IP 44 (polycarbonate enclosure) |
Three phase metering and protection panel
The three phase metering and protection panel board is used in the low voltage distribution network to supply power to household consumers or public buildings.
Type:
- metallic enclosure
- polycarbonate enclosure
Technical data | |
Thermal and usage rated current | 16÷250A |
Rated voltage | 400/ 230 V c.a. |
Insulation voltage | 690 V c.a. |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |
Single phase metering and protection panel
The single phase metering and protection panel board is employed in the low voltage final distribution network to supply single phase power to individual users.
Type:
- metallic enclosure
- polycarbonate enclosure
Technical data | |
Thermal and usage rated current | 16÷40A |
Rated voltage | 230 V c.a. |
Insulation voltage | 690 V c.a. |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |
Distribution and metering panel
The distribution and metering panels are employed for the distribution, monitoring and protection of households power supply circuits.
Type:
- metallic enclosure
- polycarbonate enclosure
Technical data | |
Thermal and usage rated current | maximum 250 A three-phase circuit; maximum 32 A single-phase circuit |
Rated voltage | 400/ 230 V ca |
Insulation voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 30 (apparent) IP 43 (embedded) IP 54 (outdoor) |
Low voltage three phase junction box
The junction box is used in low voltage distribution networks for public lighting underground or overhead cables connection and for short circuit protection.
Technical data | |
Thermal and usage rated current | maximum 100A |
Rated voltage | 400/ 230 V ca |
Insulated voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |
Low voltage three phase selective box
The selective box is used in low voltage distribution networks to provide selective and sensitive protections to short circuit currents, after the fitting point, before the end of line and its derivatives.
Technical data | |
Thermal and usage rated current | maximum 250A |
Rated voltage | 400/ 230 V ca |
Insulated voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |
Public lighting main switchboard
The public lighting main switchboard is used in in low voltage networks to supply power to public lighting, in single and three phase systems, manual or automatic operation, as well as for electricity metering.
Technical data | |
Thermal and usage rated current | maximum 63 A for single-phase version; maximum 100 A for three-phase version |
Rated voltage | 230 Vac for single-phase version; 400/230 Vac for three-phase version |
Insulated voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |
Power Factor Correction equipment
The power factor correction equipment adjusts the reactive power consumed by the inductive receivers for achieving a power factor in accordance with the current legislation.
Technical data | |
Reactive rated power | 25÷400kVAr |
Number of reagulation steps | 3÷12 steps |
Rated voltage | 400/230 V c.a. |
Insulated voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 30 (indoor); IP 54 (outdoor) |
AC/DC power supply solutions for telecom applications
Intended for indoor or outdoor use the power supply sources for the GSM are based on a modular cabinet concept and represents a new approach on how they can increase the capacity of a DC cabinet for telecommunication applications.
- Indoor cabinets
- Outdoor cabinets
- Outdoor cabinets with integrated thermal management
- Outdoor cabinets with built-in environment control
- Specific power supply cabinets for telecom sites: PMB, SWAC, LDB
Indoor modular cabinets
The cabinet will be used to power telecommunications equipment including mobile networks. The power will be supplied with grounded “+” and the power system will be “-48Vdc” type (upon beneficiary’s request also other voltage levels can be provided).
The modular design concept allows:
- Easy adaptation to conditions on site
- Compliance with requirements related to weight density on the floor
- Ease of transport
- Easy Expansion
Technical data | |
Maximum number of rectifiers | 12x2000W |
Supply voltage | |
single-phase | 230Vac |
three-phase | 230Vac (Δ) |
three-phase | 400Vac+N (Y) |
Frequency | - 45 ± 66Hz |
Sizes (LxAxH) | 600x600x1400mm 600x600x1800mm 600x600x2200mm 600x600x2000mm (OPTIONAL) |
Approximate weight, with no rectifiers and bateries | 1400mm/ 70kg 1800mm/ 90kg 2200mm/ 110kg |
Normal protection degree | IP20 |
Outdoor cabinets
The outdoor cabinet is meant to being used on GSM site and is designed to withstand different environmental conditions, the microclimate inside the cabinet being achieved in accordance with the operational environmental temperature and humidity (specified by the customer). The microclimate inside the cabinet is preserved at the required level required by the customer via the heating management units (heaters for temperatures below 10°C and/or fans, integrated air/ air heat exchangers for temperatures above 25°C).
Technical data | |
Maximum number of rectifiers | 12x2000W |
Supply voltage | |
single-phase | 230Vac |
three-phase | 230Vac (Δ) |
three-phase | 400Vac+N (Y) |
Frequency | - 45 ± 66Hz |
Sizes (LxAxH) | 700x800x2250mm 1350x800x1850mm |
Approximate weight, with no rectifiers and bateries | 2250mm/ 300kg 1850mm/ 350kg |
Normal protection degree | IP54 |
Outdoor cabinets with built-in environment control
The outdoor cabinet is designed for a diversity of applications and can be adapted to suit different specific requirements. The cabinet is very suitable for power equipment, batteries, telecommunications equipment, all integrated into a robust and costeffective package. The cabinet can be equipped with wireless components, optical fibre, TV cable, DSL and WLAN applications. The microclimate inside the cabinet is preserved at the required level required by the customer via the heating management units (heaters for temperatures below 10°C and/ or fans, integrated air/ air heat exchangers for temperatures above 25°C).
The specific cooling capacity is about 22W/K, subject to the fans’ speed. The heat exchanger’s input power is 48 VDC, total 30 W for 4 fans (maximum 7.5W for each fan).
Technical data | |
Maximum power | 120W |
Rated current | 2,5A |
Rated voltage | 48 V cc |
Available space | 6U (1U=44.45mm) |
Normal protection degree | IP 55 |
Outdoor cabinets with built-in environment control
The outdoor cabinet is designed for a diversity of applications and can be adapted to suit different specific requirements. The cabinet is very suitable for power equipment, batteries, telecommunications equipment, all integrated into a robust and costeffective package. The cabinet can be equipped with wireless components, optical fibre, TV cable, DSL and WLAN applications.
Technical data | |
Supply voltage | |
single-phase | 230Vac |
three-phase | 230Vac (Δ) |
three-phase | 400Vac+N (Y) |
Frequency | - 45 ± 66Hz |
Normal protection degree | IP 55 |
Specific power supply cabinets for telecom sites: PMB, SWAC, LDB
The electric boards PMB, SWAC, LDB are used in low voltage distribution network for telecom network consumers electricity supply.
Technical data | |
Thermal and usage rated current | 63A |
Rated voltage | 400/ 230 V ca |
Insulated voltage | 690 V ca |
Rated frequency | 50 Hz |
Normal protection degree | IP 54 |