The scope of supply involves more than 3,000 items, including: distribution transformers, high-efficiency motors, electrical panels and drives
WEG contributes to the increase of renewable energy sources in the world, providing solutions for the segment, as well as expanding its market share at global level. An example of this was a supply of step up substations and transformer made to a multinational energy sector company for five solar and wind power plants of more than 962.7 MW.
The substations provided by WEG for these five projects are complete turnkey solutions including preliminary study about the project, definition of a customer-dedicated solution, project management, construction and assembly. For customer satisfaction, WEG counts of a qualified and trained staff with proven experience, having delivered and operated more than 430 substations at all voltage levels up to 550 kV.
In addition to complete and customized delivery, turnkey substations offer significant advantages such as interface with other products that WEG manufactures, such as HV switches, HV transformers, MV/LV oil and dry transformers, panels – control/protection and auxiliary services, cabinets – control/protection of feeder bays, monitoring system and generators.
According to ONS (Brazil´s Electric Grid Operator), every transmission and power generation substation interconnected to SIN (National Interconnected System) system must include two energy sources for essential loads. So, in addition to substations and transformers, WEG has also supplied 69 kVA and 200 kVA, IP44 Degree of Protection synchronous alternators for these projects. The generator set will operate at an emergency/stand-by service duty to cover unexpected failures of power outages from the electricity grid, keeping in operation essential equipment such as computers, control monitoring systems, control panels, among others.
What allows WEG to be successful with this type of supply is its verticalized production process, combined with the customization of projects, which provide customers with high flexibility and delivery speed up. Associated to this, state-of-the-art equipment a qualified technical team and a comprehensive product portfolio ensure added value to each solution designed for the customer.
WEG will be supplying about 40 MV electric motors with rated output up to 13,400 kW, over 100 LV electric motors and five MV variable speed drives (three of them with 11,723 kW rated output) for the largest oil and gas platform in Brazil.
These products, which are already being produced at the WEG manufacturing site located in Jaraguá do Sul/SC, Brazil, will be supplied through compressor and pump manufacturers from Europe and Asia, and will be driving these machineries at Bacalhau oilfield.
Designed for the Santos Basin pre-salt and with the first oil production scheduled between 2023/2024, the new platform will have a production capacity of 220,000 barrels of oil per day and 15 million m³ per day of natural gas.
In the last decade WEG has consolidated itself as the world’s largest supplier of electric motors for oil and gas FPSO (Floating Production Storage and Offloading) platforms, mainly due to the high technology used in its products and high operating reliability.
“For projects like this, where final destination is Brazil, our customers can also count on the largest local service structure with highly trained and qualified engineers to provide prompt support in case of any need,” says Elder Stringari, WEG´s International Director.
When the WG20 gear unit in this setup is then connected to a EUSAS integral motor from WEG, this offers a wide range of advantages for the user, because the EUSAS motor operated in frequency inverter mode (100/120 Hz characteristics) offers double the power at a constant torque.
WEG, a global leader in drive technology, announces availability of a decentralised drive package for indoor and outdoor applications, consisting of WG20-series gear units, EUSAS motors and the MW500 variable speed drive. Members of the MW500 VSD family can be used for applications in the range from 0.12 to 9.2 kW for line voltages of 380–480 V and in three frame sizes (A, B and C), as well as from 0.12 to 1.5 kW for 200–240 V with the WG20 geared motor series, which is available in models with helical, parallel shaft and helical bevel gear units. When the WG20 gear unit in this setup is then connected to a EUSAS integral motor from WEG, this offers a wide range of advantages for the user, because the EUSAS motor operated in frequency inverter mode (100/120 Hz characteristics) offers double the power at a constant torque.
When compared with traditional drives, this compact, decentralised drive solution from WEG provides users with a wide range of benefits. With lower energy consumption and a compact footprint, the package is far more efficient overall than centralised drive solutions. At the same time, it ensures the user enjoys maximum flexibility. The decentralised drive package can be utilised for a broad spectrum of applications, including machines in intralogistics such as warehouse systems and conveyor belts. Other applications include speed controlled fan pumps and filling systems as used in the food industry.
“By combining the MW500 VSD designed as a decentralised solution and the WG20 gear unit with a EUSAS integral motor, we’re demonstrating just how compact, powerful and efficient drive solutions can be,” says Norbert Reisner, who heads up the Product Engineering Dept. at WEG subsidiary Watt Drive. “When it comes to decentralised indoor and outdoor applications, the MW500 VSD family makes a good pairing with geared motors from the WG20 series. This combination is the perfect solution when users need variable-speed drives while simultaneously cutting energy requirements.”
Compared to centralised solutions, a decentralised drive system can also be networked more easily with standard industrial bus systems. Another major advantage of decentralised solutions is that several drives can be connected via separate bus systems while the supply line is then looped through, allowing for considerably shorter cable lengths. This is in contrast to a switch cabinet solution where every drive has to be wired to the inverter in the switch cabinet. A decentralised drive is also easy to install and maintain. Combining the WG20 geared motor with a decentralised variable speed drive provides independent control of speed and torque. This is an effective way to conserve energy while ensuring the required power is always available.
Significant benefits are achieved when using WG20 gear units and MW500 variable speed drives together with WEG EUSAS motors operated at 100/120 Hz. These motors can be deployed in EUrope, the USA or ASia, since they support a broad range of voltages and also offer the option of voltage switching. As with all WG20-series geared motors, the EUSAS motor can control each individual drive in frequency inverter mode with a variable speed as the situation requires. In this case, the MW500 must be dimensioned to match the doubled motor power and have the right parametric design to use the benefits of the overall package to the full. At low frequencies, forced cooling can also be used to achieve a constant torque: this results in a broad usage spectrum ranging from low to very high speeds. When combined with modern variable speed drives like the MW500, the result is a high-performance, variable-speed drive with double the power at a constant torque across a wide range of speeds.
Thanks to the special winding, a drive with a EUSAS motor can operate at higher speeds and deliver higher power output at a constant magnetic flux (constant torque) without overloading the machine. In this way, the EUSAS motors make excellent use of the capabilities of electronically controlled drive technology. The ability to work with twice the rated power in inverter mode creates more scope in confined installation situations while also enabling applications that require a wide control range (speed range) with constant torque up to 100/120 Hz. The use of smaller motors, even for demanding performance requirements, reduces weights while also cutting costs.
The heavy-duty housing design for the MW500 with an IP66 and NEMA 4X rating means that the VSD can be attached directly to the motor terminal box frame or (with an adapter plate) to the wall, making it ideal for outdoor applications. This removes the need for motor cabling and the switch cabinet, which reduces the effort and costs for installation and commissioning. As a result, users can install the MW500 near to the motor to be controlled, which boosts deployment flexibility.
The MW500 also comes with an energy-saving feature out of the box, which enables the motor voltage to be reduced when loads are light. This offers significant energy savings, especially for partial loads.
In the standard variant, the MW500 features a PID process controller and an integrated PLC with a wide range of programmable functions, plus support both for voltage vector control (VVW) and V/f characteristic curve control. An RFI filter (category C2, according to EN 61800-3) is integrated. An analogue speed setpoint potentiometer is also included in the inverter: this can be used to control the speed of an asynchronous motor without requiring the use of a remote control unit (HMI). If required, however, users can also operate the unit with a simple, user-friendly remote control unit (HMI, optional). Three LEDs placed on the top surface of the inverter are used to indicate operational, alarm and error states. Another option is a built-in mains isolation switch, to ensure safe and straightforward maintenance. A special coating (IEC 60721-3-3, category 3C2), protects the electronic boards in the MW500 from dust, moisture and chemicals. The inverter has CE, cUL and EAC certification.
To maximise the versatility of the unit, optional extension modules available for the MW500 include digital inputs and outputs, as well as communication protocols such as CANopen, DeviceNet and PROFIBUS-DP. The Windows-based application software SuperdriveG2 is used for MW500 settings, control and monitoring, and is available as a free download from the WEG website.
WEG just announced the signing of a contract with OXE Energia for the supply of four complete sets of turbo generators, including logistics, assembly and commissioning services for Bonfim, Pau Rainha, Cantá and Santa Luz biomass thermopower plants, located in the northern state of Roraima.
The contract also includes the installation of four reaction and condensation turbines, with two CT model back-side installation uncontrolled outlets, together with four x 12.5 MVA, 13.8 kV, 1800 rpm, 60 Hz three-phase synchronous generators, plus the protection and monitoring electrical panels, amounting to approximately R$ 39 million (approx. USD 7 million).
Installed in two different locations, the power plants will have an individual installed generating capacity of 11.5MW and will use reforested wood chips as biomass, which is highly available in the region. The energy that will be generated was sold by OXE Energia through one of the auctions conducted by the Brazilian National Electric Energy Agency (ANEEL).
“This supply not only evidences WEG’s successful performance in clean electric power generation projects, but also in strategic initiatives for the sustainable development of different regions in Brazil”, says Paulo Sinoti, Energy Business Director.
The four thermopower plants make part of the power supply safety plan designed for the State of Roraima, which since 2019 stopped importing energy from Venezuela and started to depend entirely on local diesel-operated thermopower plants. Daily fuel consumption ranges from 700 to 1100 million liters in the whole state of Roraima.
According to ANEEL´s executives, this auction is a historic milestone for Roraima. From June 2021, the state will have reliable electrical service with local generation and the future transmission line connecting Roraima to the National Interconnected System. This will attract industries to the state, providing a better quality of life to the population.
Delivery of the equipment will take place in the first quarter of 2021, with the forecast for the operation / commercialization of energy by June of this year.
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