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salesusa@romagnole.com
salesusa@romagnole.com
Romagnole offers technical assistance for all its products. You can request it through the Contact Form, filling in your details and selecting the ‘Technical Assistance’ option or by clicking here.
Service for Photovoltaic Structures
For Photovoltaic Structures products, there is a direct service channel, via WhatsApp 44 3233-8545 or by clicking here
You can clear up your technical doubts and learn more about the installation of Romagnole solutions for solar energy generation.
It is a common term given to generally large pieces made from concrete, the CNAE (Business Activities Code) defines it as pre-molded or prefabricated pieces with a structural function. Very common in civil construction and in electricity distribution networks.
Although they are often used as synonyms, cement and concrete are distinct and have distinct applications.
Cement is a fine powder made from limestone and other minerals, which when added to water, serves as a binder for concrete, that is, it is one of the elements of concrete.
Concrete, in turn, is obtained from a mixture of cement, water, stone (gravel) and sand. And if, after this, it receives metal, it becomes reinforced concrete.
These are concrete structures that have steel bars inside them.
Concrete is known for its high compression capacity, but it is deficient in resisting tensile stresses. By adding such steel reinforcements to the concrete, this deficiency is overcome and the concrete structure becomes more resistant.
They are made of reinforced concrete, that is, concrete and a steel structure inside.
Service entrance posts are offered for public lighting, energy distribution and transmission.
The main difference between the double T type B post and the circular type R post is the type of cross section.
The double T model has a cross section similar to an H, we call the closed side face B and the open side face A. The resistance of each face is different, where face A resists half of the nominal load applied to face B. As an example, a post with a nominal load of 300 daN, face B, has a nominal capacity of 150 daN on face A.
The circular post R, as its name suggests, has a circular cross section and in this case the resistance in all directions is the same. Therefore, a 300 daN post has a nominal capacity of 300 daN in all directions.
This depends on the region. In the case of Paraná and Santa Catarina, the companies Copel and Celesc use the double T type B pole in their distribution network. In this situation, the entire network is designed and projected to use this type of pole, avoiding torsional stresses.
In regions such as the states of São Paulo and Rio Grande do Sul, the most commonly used models are the circular type R poles.
The length of the pole can vary according to the network design.
Service entrance poles range from 6 to 7.5m in length.
Type D distribution network poles range from 7 to 12m. B and R poles can range from 9 to 20m.
Power transmission poles can reach 35m in height or more.
The post’s embedding may vary according to its length. To calculate this embedding, we use a formula established in NBR 8451 where E = Length x 0.1 + 0.60. Where E is the embedding length.
As an example, a 12 m post will be embedded 1.80 m (E = 12 x 0.1 + 0.60).
First, it is necessary to know what forces are acting at that point in the network. This information must be consulted with the network designer, to then determine the suitability of the type of pole.
In some cases, yes, to define the pole model it is necessary to know the model and the number of reflectors that will be used.
This equipment is installed at the point where the electrical energy enters the establishment, connecting the internal system to the local utility company’s distribution network. The product consists of interconnected modules, which are: underground cable entry and measuring/billing devices (provided by the electricity company), sectioning, general protection and switching of the transformer(s).
Approved cabinet:
These are models that have modules intended for energy utilities. These modules house the equipment that collects data for measuring/billing and to house donation transformers when used.
ABNT cabinet:
These are models for private use, intended for the control and protection of internal networks, as well as sectioning, shelters for transformers and/or low-voltage distribution panels.
With the use of a metal primary cabinet, it is possible to control, measure, protect and distribute electrical energy safely and efficiently, serving the entire company plant. Its application is viable for both new projects and already consolidated installations that require an increase in load or restructuring of the service entrance system.
The installation of the cabin in the electrical power grid must be carried out by an authorized technician, who will supervise the installation with due safety.
Before energizing the cabin, check that all power connections are properly connected. If necessary, retighten all connected points. Also check the nominal value of the ohmic resistance of the grounding grid.
When making the connections, do so according to the diagrams provided.
The cable entries and exits must be completely sealed after the cables are installed, in order to prevent the entry of animals and insects, preventing electrical short circuits.
The cabin must be installed by trained technical personnel, qualified and authorized by the local energy company, in compliance with its technical installation specifications and safety standards. No voltage source should be connected to the secondary winding (auxiliary service VT, protection CT or any other induction device), as this procedure can induce high voltages in the primary winding, which can lead to serious accidents with a risk of death. When handling the cabin, the responsible people must use personal protective equipment, such as appropriate insulating clothing, gloves, safety glasses, helmet, maneuvering stick and others related to safety standards.
The cabin should be moved using the suspension hooks and never by forklifts, taking care not to damage the paint, which can cause corrosion problems after installation. Before moving the cabin, make sure that the suspension equipment is capable of supporting its weight. Worn cables or straps should not be used to lift the cabin.
The base used to secure the cabin should be sized to support its mass.
The cabin must be installed on the base in such a way as to correct any imperfections between the two, thus preventing the entry of dust and insects, which could cause a short circuit.
Also make sure that the cabin is connected to a permanent grounding point with low ohmic resistance. There are two grounding terminals in the cabin. One is located at the cable entry and the other at the cable exit.
The cabin accessories and components aim to ensure the safety of the equipment and the personnel involved, and are:
· Muffle
· Passage bushing
· Lightning rod
· Current transformer
· Potential transformer
· Three-pole disconnect switch
· Medium voltage circuit breaker
· Protection relay
The current transformer acts to establish the current that should flow through the circuit. If an overcurrent occurs in the system, it is the responsibility of the CT to inform the relay of the occurrences so that it can take action and prevent damage.
This equipment is used to reduce the voltage of the medium voltage circuit to levels compatible with the maximum withstand by the internal instruments. This voltage will be used to power the protection relay, the ventilation system and, when necessary, can be applied to internal auxiliary sockets.
This is the switching device designed to establish and interrupt electrical circuits, providing an isolation distance that guarantees specified safety conditions in relation to any energized circuits.
Circuit breakers are distinguished by the fact that they require low mechanical energy for their operation. Basically, they are a set of mechanical controls (energy stored in springs) and three sealed ampoules with two contacts: one fixed and one movable.
When the contacts separate, an electric arc is established through the metal vapor and the current to be interrupted flows through the plasma until the first passage through the current zero. The electric arc is then extinguished.
Vacuum circuit breaker:
It has a robust and compact structure and is used to protect electrical circuits. The interruption of the electric current is done inside a ceramic structure known as a vacuum interrupter. The interrupter is completely insulated, allowing a high vacuum rate inside it and houses the fixed and mobile contacts to extinguish the arc.
Gas circuit breaker:
It has a robust structure, with mechanical or motorized front-operated control, has 3 separate and mechanically connected poles, integrated in an insulating interrupter of the “sealed pressure system” type. This interrupter is filled with low-pressure SF6 gas to extinguish the arc.
The protection relay acts to prevent abnormalities in the power distribution network, such as: overvoltage, phase or neutral failure, overcurrent, from causing damage to the loads connected after the primary cabinet.
What is the cabinet grounding system like?
The cabin grounding system uses bare copper cables, 50mm² in size, fixed directly to the internal structures. The installer must then connect it to the external grounding grid.
All equipment, accessories and components are interconnected to this internal grounding grid.
The NBR IEC 60529 standard – Degrees of protection provided by enclosures is applied to classify the degrees of protection in the enclosures of electrical equipment with a nominal voltage not exceeding 72.5 kV. It is from this standard that we have the classifications of degree of protection against the entry of water and particles of various equipment that we know.
In order to have the necessary heat exchange of the internal equipment, the cabin has a ventilation system installed in its structure through grilles in the side doors.
For locations with high levels of humidity, the cabin has a system that consists of using internal resistors and a capillary thermostat, which is activated if there is a change in temperature inside the cabin modules.
Capacitive trip unit:
This is a source formed by capacitors, which is responsible for triggering the circuit breaker and powering the protection relay when there is a power outage.
Uninterruptible power supply:
A device used to guarantee the power supply to the protection relay when there is a power outage
With the exception of emergency maneuvers, it is essential that a prior schedule and a list of procedures to be performed are made to ensure that maintenance is performed safely. To perform scheduled maintenance, the cabin must be completely de-energized. To do this:
· Always turn off the circuit using the circuit breaker and never using the disconnect switch. Circuit breakers are designed to withstand load surges and even short circuits.
· Perform voltage test with calibrated equipment;
· Perform temporary grounding;
· Isolate the area;
You should contact the Regional Representative.
The consumer can repair the transformer at any company of their choice. If you need any advice, contact the Regional Representative.
Through its single-body construction and application on a compact platform, this product is designed for power ranges between 500 and 8000 kVA, manufactured in high-resistance galvanized steel for outdoor installation IP-54, has all the integrated equipment, including medium voltage cubicle (measurement and protection), power transformer (dry or oil), distribution board (low voltage) and inverters, for quick connection to your plant. Mounted on a metal base, the Skid is supplied ready for use, simply by connecting the cables coming from the field through openings in the lower part, as well as preparing the masonry platform for its fixing. The Skid allows energy generation to be carried out in an optimized and efficient manner, minimizing downtime for maintenance or repairs.
Distributed generation skid:
These models are highly customizable, as they can accommodate inverters integrated into the solution, compartmentalized as follows: MV protection and measurement panel, auxiliary transformer and power transformer, general LV protection and control panel, support for fixing the inverters and interconnection cables.
Another version has the inverters installed in the module structure, compartmentalized as follows: MV protection and measurement panel, auxiliary transformer and power transformer, general LV protection and control panel.
Centralized generation skid:
These models are built to serve large plants, compartmentalized as follows: MV protection panel, control and communication panel, auxiliary transformer and power transformer, as well as interconnection cables.
Due to Romagnole technology, power transformers for centralized generation can serve one or more central inverters, thus reducing the number of transformers in the field.
· Note: both models may undergo changes according to the project approved by the energy concessionaire;
Its application is viable for new projects or for already consolidated facilities that require system restructuring, since its “plug and play” installation provides a reduction in installation costs due to mobility. Another reduction is in relation to the CAPEX of civil infrastructure and cables due to the proximity to the QGBT and reduction of OPEX in services and professionals in the field.
Mounted on a metal base, the Skid is supplied ready for use, requiring the connection of the cables coming from the field through openings in the lower part, as well as the installation and parameterization of the inverters.
Along with the product approval drawings, the preparation diagram of the masonry platform for fixing the equipment to the ground is sent.
The skid must be installed by qualified, qualified and certified technical personnel from the owner’s engineering department, in compliance with the technical installation specifications and safety standards.
No voltage source should be connected to the secondary winding (auxiliary service VT, protection CT or any other induction device), as this procedure can induce high voltages in the primary winding, which could lead to serious accidents with risk of death. When handling the skid, the responsible persons must use personal protective equipment, such as appropriate insulating clothing, gloves, safety glasses, helmet, maneuvering stick and others related to safety standards.
The skid must be moved by the indicated suspension points, sometimes using a “rocker” and never by forklifts, taking care not to damage the structure or paint, which can cause corrosion problems after installation.
Before moving the skid, make sure that the suspension equipment is capable of supporting the weight. Never use worn cables or straps to lift the product.
The concrete base used to fix the skid must be sized to support its mass. The skid must be placed on the base in such a way as to correct imperfections between the two, thus preventing the entry of dust and insects, which could cause a short circuit.
Also make sure that the skid is connected to a permanent ground point with low ohmic resistance. The skid has grounding terminals located at the cable input and another at the output.
The skid accessories and components aim to ensure the safety of the equipment and personnel involved, they are:
· Muffle
· Passage bushing
· Lightning arrester
· Current transformer
· Potential transformer
· Auxiliary transformer (dry or oil)
· Power transformer (dry or oil)
· Three-pole medium voltage and low voltage disconnect switch
· Medium voltage and low voltage circuit breaker
· Protection relay
· Temperature relay
· Artificial lighting
· Control panel
· Low voltage main switchboard
· Communication and power cables
· Grounding grid
· Oil containment box (pre-specified capacity)
The current transformer acts to establish the current that should flow through the circuit. If an overcurrent occurs in the system, it is the responsibility of the CT to inform the relay of the occurrences so that it can take action and prevent damage.
This equipment is used to reduce the voltage of the medium voltage circuit to levels compatible with the maximum withstand level of the internal instruments. This voltage will be used to power the protection relay, the ventilation system and, when necessary, can be applied to internal auxiliary sockets.
This is the switching device designed to establish and interrupt electrical circuits, providing an isolation distance that guarantees specified safety conditions in relation to any energized circuits.
Circuit breakers are distinguished by the fact that they require low mechanical energy for their operation. Basically, they are a set of mechanical controls (energy stored in springs) and three sealed ampoules with two contacts: one fixed and one movable.
When the contacts separate, an electric arc is established through the metal vapor and the current to be interrupted flows through the plasma until the first passage through the current zero. The electric arc is then extinguished.
The protection relay acts to prevent abnormalities in the power distribution network, such as: overvoltage, phase or neutral loss, overcurrent, from causing damage to the loads connected after the primary skid.
The skid grounding system uses bare copper cables, 50 mm² gauge, fixed directly to the internal and external structures. The installer must then connect it to the external grounding grid.
All equipment, accessories and components are interconnected to this internal grounding grid.
The NBR IEC 60529 standard – Degrees of protection provided by enclosures is applied to classify the degrees of protection in the enclosures of electrical equipment with a nominal voltage not exceeding 72.5 kV. It is from this standard that we have the classifications of the degree of protection against the ingress of water and particles of various equipment that we know.
In order to have the necessary heat exchange of the internal equipment, the skid has a ventilation system installed in its structure through grilles in the doors.
For places with high levels of humidity, the skid has a system that consists of using internal resistors and a thermostat, which is activated if there is a change in temperature inside the modules.
Capacitive Release:
This is a source made up of capacitors, which is responsible for triggering the circuit breaker and powering the protection relay when there is a power outage.
Uninterruptible Power Supply:
A device used to ensure the power supply to the protection relay when there is a power outage
Operational records should be obtained through readings of indicator instruments, extraordinary occurrences related to the equipment, as well as any event related or not to the operation of the electrical system, which may affect its performance and/or intrinsic characteristics.
It is recommended to read the temperature indicators (note the ambient temperature) of the oil level indicator, load and voltage of the transformer daily.
Check that the current, during hours of maximum load, does not exceed its nominal value, to prevent the transformer from exceeding the temperature rise specified by the standards.
With the exception of emergency maneuvers, it is essential to make a prior schedule and a list of procedures to be performed to ensure that maintenance is performed safely. To perform scheduled maintenance, the skid must be completely de-energized. To do this: · Always turn off the circuit using the medium voltage circuit breaker and never using the disconnector. Circuit breakers are designed to withstand load surges and even short circuits. · Perform a voltage test with calibrated equipment; · Perform temporary grounding; · Isolate the area.
With the exception of emergency maneuvers, it is essential to make a prior schedule and a list of procedures to be performed to ensure that maintenance is performed safely.
To perform scheduled maintenance, the skid must be completely de-energized. To do this:
· Always turn off the circuit using the medium voltage circuit breaker and never using the disconnector. Circuit breakers are designed to withstand load surges and even short circuits.
· Perform voltage tests with calibrated equipment;
· Perform temporary grounding;
· Isolate the area.
To perform scheduled maintenance, the skid must be completely de-energized. To do this:
· Always turn off the circuit using the medium voltage circuit breaker and never using the disconnect switch. Circuit breakers are designed to withstand load surges and even short circuits.
· Perform voltage tests with calibrated equipment;
· Perform temporary grounding;
· Isolate the area.
The transformer oil should preferably be changed when the transformer is overheating during normal operation and the oil viscosity is low. The change should be as complete as possible, since mixing new oil with old oil quickly causes the properties of the lower quality oil to predominate.
When replacing oil that has been removed or leaked in small quantities, the oil to be added must be free of moisture, pure and of the same quality as the oil in the transformer.
This is an argument normally used by manufacturers of dry transformers to reinforce the benefits of this type of equipment. Although they do offer advantages in terms of maintenance activities, it is important to highlight that dry transformers require periodic interventions, inspections and tests like any other equipment in order to operate properly and safely.
In this sense, it is important to establish a schedule of frequent activities, so that problems such as: excessive heating, accumulation of dirt and contaminants, which can cause loss of cooling capacity and consequent loss of power, deformations or structural damage and potential equipment failures, can be avoided.
You should contact the Representative in your region.
The consumer can repair the transformer at any company of their choice. If you need any advice, contact the representative in your region.
A Smart Grid is an electrical network that can intelligently integrate the needs of all users connected to it in order to efficiently provide economical, sustainable and safe electricity supplies.
All users, whether they are: generators, consumers, prosumers or electricity distribution companies.
There are applications for distributed mini-generation, power generation plants, self-producers, horizontal condominiums, outdoor substations, protection and automation of rural and urban networks of cooperatives, industries and sanitation companies.
Only 5% of faults in the power system are permanent, others are semi-transient or transient in nature. The use of an automated recloser in these cases of transient faults can reduce operating costs and increase the safety of the electrical distribution system.
The quality of the power supply can also be improved with intelligent voltage regulators.
The massive use of Smart Grid can facilitate network expansion planning and asset management, reduce technical and commercial losses and prepare the electrical system to receive Distributed Generation (DG), electric vehicles and electrical energy storage systems.
The automatic recloser performs opening and closing operations in an attempt to eliminate transient faults, without the need for operator intervention.
The automatic recloser allows adjustment from 1 to 5 openings. The project engineer responsible for the protection needs to define how many reconnection options are allowed.
If after completing the automatic reclosing cycles the fault remains in the network, the Recloser will go into lockout after the last opening and will remain in this position until a closing command is sent by an operator.
No. Still thinking about the distribution line, in addition to the application for protecting sections, automatic reclosers can be used for load transfer and self-healing. Another application for this equipment is its use as an interruption element both in power substations and in inputs to distributed generation systems (wind, photovoltaic, gas, etc.) or subdivisions.
In addition to its main protection function, since it is equipped with voltage and current sensors, the automatic recloser becomes a very important piece of equipment in the entire network ecosystem, being responsible for providing crucial data to the distribution company. This information is monitored and processed by the central office and is responsible for the assertiveness in identifying the problem, reducing cost and response time to resolve occurrences. These features allow the automatic recloser to integrate the company’s smart grid.
Romagnole has automatic recloser designs to meet nominal voltages of 15kV, 27kV and 38kV.
Romagnole brand automatic reclosers are three-phase actuation types with only one actuator for the 3 phases.
Voltage regulators are designed to compensate for voltage variations in the network generated by changes in the load connected to the network.
Romagnole brand regulators are designed to compensate for variations of +/- 10% of the nominal voltage of the network.
Regulators are mainly used by electric power utilities to compensate for voltage variations in feeders or distribution systems.
Romagnole voltage regulators are single-phase and can be installed in three-piece arrangements for application in three-phase networks.
The installation of voltage regulator banks in three-phase networks is recommended in a grounded star, closed delta or open delta arrangement.
Voltage regulators can be installed directly on posts or on a platform.
A transformer is a device designed to modify voltage and electrical current levels, keeping electrical power practically constant from one circuit to another, also modifying the values of electrical impedances in an electrical circuit.
Distribution transformer:
It is mainly used by energy distribution companies to distribute to consumers values different from those generated, suitable for each type of consumer.
Power transformers:
They are used for generation and distribution of energy by concessionaires, as well as in substations of medium and large-scale projects.
Type A insulating mineral oil: naphthenic base
Type B insulating mineral oil: paraffinic base
Vegetable oil (biodegradable)
The main function of oil is refrigeration, serving as a means of exchanging heat between the active part and the environment. Another function of oil in electrical equipment is insulation, where the fluid acts as a dielectric or arc extinguisher.
The transformer oil should preferably be changed when the transformer is overheating during normal operation and the oil viscosity is low. The change should be as complete as possible, since mixing new oil with old oil quickly causes the properties of the lower quality oil to predominate.
When replacing oil that has been removed or leaked in small quantities, the oil to be added must be free of moisture, pure and of the same quality as the oil in the transformer.
An analysis of the insulating oil must be performed annually by taking samples and performing physical and chemical tests. It is also recommended that gas analysis be performed in accordance with NBR-7274.
It is a device used to change the taps of a winding, and this operation must be performed with the transformer de-energized. The tap change allows the voltage to be increased or decreased by varying the transformer ratio.
The voltage changer actuation handle is usually located on the tank wall, near the identification plate. To operate it, the following procedures must be followed:
A. Check that the tank is grounded. Disconnect the transformer from the power source.
Ground all terminals before operating the tap changer handle;
B. Unscrew the position locking screw until the position indicator is free;
C. Change to the desired tap position;
D. Tighten the position locking screw.
When the tap changer is not operated externally, access is obtained by opening the inspection cover, which, when opened, must be properly closed to prevent moisture from entering. Take special care to avoid metal objects falling into the transformer. If this occurs, the transformer must be returned to the factory or to a technical assistant to remove the object before energizing.
The thermometer has two pointers, one indicating the maximum temperature reached in a given period and the other indicating the temperature. The connection pointers and the maximum temperature pointer are externally controllable, with the first two moving only by external action, while the last is driven by the temperature needle (drag pointer) only when it is rising, since when it is falling it remains stationary, subject only to external action, allowing the verification of the maximum temperature reached in a given period.
The pressure gauge measures the internal pressure and vacuum in the transformer tank. It can be accompanied by internal contacts for alarm and shutdown.
The valve is a mechanical device for protection against internal excess pressure, providing pressure relief in the transformer during excess pressure conditions, with automatic sealing recomposition when the pressure drops. It has a stainless steel extraction ring connected to allow manual operation, as it consists of pulling the ring away from the device.
The Buchholz relay is an accessory installed in power transformers that have oil as a dielectric and cooling medium, equipped with an upper reserve called a “conservator”. The Buchholz relay is a device that protects itself against oil shortage, gas accumulation and dielectric failures.
The relay has two forms of detection. In the event of a small overload, the gas produced by the decomposition of the oil accumulates at the top of the relay and forces the upper level to fall. A float switch on the relay is used to activate an alarm. This option also works even when the oil level is low, as in the case of a small oil leak. In the case of an electric arc, the accumulation of gas is sudden and the oil flows quickly to the conservator.
The oil conservator is an accessory that aims to compensate for variations in oil volume resulting from temperature and pressure fluctuations. It has a cylindrical shape, with its axis arranged horizontally and is installed at a sufficient height to ensure the minimum oil level required for the parts that must be immersed.
Thermal imaging is the technique commonly used to measure the temperature in the transformer winding. It is called thermal imaging because it indirectly reproduces the temperature of the winding. The temperature of the winding, which is the hottest part of the transformer, is nothing more than the temperature of the oil plus the temperature increase of the winding in relation to the oil.
Bayonet type expulsion fuses must protect the transformer against external defects considered high impedance defects. Bayonet type expulsion fuses must be for on-load operation and installed internally immersed in the tank oil and removable without having to open the tank. The “bayonet” type expulsion fuses must be coordinated with the backup protection (type K fuse links, circuit breakers, reclosers) and be selective with the low voltage protection (NH fuses and switches).
No, the transformer requires an accessory for fixing to the pole.
There are different products for each pole model, i.e., fixing brackets for circular and double T poles.
Operational records must be obtained through readings of the indicator instruments, extraordinary occurrences related to the transformer, as well as any event related or not to the operation of the electrical system, which may affect the performance and/or intrinsic characteristics of the equipment. It is recommended to read the temperature indicators (note the ambient temperature) of the oil level indicator, load and voltage of the transformer daily. Check that the current, during peak load hours, does not exceed its nominal value, to prevent the transformer from exceeding the temperature rise specified by the standards.
According to standard NBR 14.039, a dry transformer must be used when the transformer substation is an integral part of an industrial and/or commercial building, even if there are masonry walls and fire doors.
Standard NBR IEC 60529 – Degrees of protection provided by enclosures is applied to classify the degrees of protection in the enclosures of electrical equipment with a nominal voltage not exceeding 72.5 kV. It is from this standard that we have the classifications of the degree of protection against the ingress of water and particles of various equipment that we know.
“Maintenance-free” is an argument normally used by manufacturers of dry transformers to reinforce the benefits of this type of equipment. Although they do offer advantages in terms of maintenance activities, it is important to highlight that dry transformers require periodic interventions, inspections and tests like any other equipment in order to operate properly and safely. In this sense, it is important to establish a schedule of frequent activities, so that problems such as: excessive heating, accumulation of dirt and contaminants that can cause loss of cooling capacity and consequent loss of power, deformations or structural damage and potential equipment failures can be avoided.
The controller was developed to monitor up to 3 (three) temperature channels simultaneously, and is used to protect and monitor the temperature of dry transformers.
The medium voltage cables are connected to the pedestal transformer using shielded insulated connectors, TDC (elbow disconnectable terminal) and/or TDR (straight disconnectable terminal). They are divided into two categories: deadbreak for disconnecting without load and loadbreak for disconnecting with the equipment energized. Both models must be specified according to the standard of each utility company. Standard connectors for conventional transformers are used for low voltage connections.
Current-limiting fuses must protect the transformer against internal defects in the tank, considered low impedance and installed internally immersed in the tank oil, and their operation implies opening the transformer for analysis/repair.
You should contact the Representative in the region.
The consumer may repair the transformer at any company of their choice. If you need any guidance, please contact the Regional Representative.
The Romagnole Customer Portal is an area designed for self-service for customers of Romagnole Group companies. Customers can use it to consult and issue 2nd copies of documents without having to contact the company by phone or email. More agility and convenience to facilitate order tracking.
The Portal already has the ability to print 2nd copies of invoices and 2nd copies of invoices. Order Tracking and other features will soon be available.
Access the home page of our website, in the top menu click on “Customer Area” and then “Customer Portal” or click here.
Customers eligible to access the Customer Portal must access https://portaldocliente.romagnole.com.br/firstAccess and enter their registered email address. They will then receive a message in their email inbox asking them to register their password. After confirming their email and registering their password, the customer can access the Portal normally.
The customer should click on “I forgot my password” just below the login and password fields on the Customer Portal. A link will be sent to the email to register a new password. Important: for security reasons, the customer has 20 minutes to access the link and change it. If they miss this deadline, they must return to the Customer Portal and request a password change again.
For which Romagnole Group companies can I provide self-service on the Customer Portal? The Romagnole Group companies with active features on the Customer Portal are:
– Romagnole Electrical Products
– Onix Electrical Products Distributor
– Acrom Aços Perfilados e Slitter
– Concrefort Concreto
– Avimaq Ferragens
Soon everyone will have access to the Portal, but first a customer registration update is required, which is initially occurring when the commercial order is generated or when invoicing. In other words, new orders and invoices are already being updated and are eligible to access the Customer Portal.
Yes, you can. The sales team will update your registration and within approximately 1 hour, you will receive a welcome email to access the Customer Portal.
450 Beaver St, Unit 1036, North Wales, PA, 19454
salesusa@romagnole.com
+1 267-621-2572
