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A ground path can be provided to either an ungrounded wye or a delta-connected system using a grounding transformer, also known as an earthing transformer, in three-phase electric power systems.
Transformers used for grounding are a component of the network’s earthing system. Having a return path for current to a neutral allows them to accommodate phase-to-neutral loads in three-phase (delta linked) systems.
Although a wye-delta winding transformer can also be used to make grounding transformers, a single winding transformer with a zigzag winding design is more typical.
On generators in power plants and wind farms, neutral grounding transformers are quite frequent. Neutral grounding transformers are occasionally used in high-voltage (sub-transmission) systems, as those at 33 kV, where a ground would otherwise be absent.
Grounding transformers are typically used to:
The Global ground transformer market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024to 2030.
Ivory Coast received the first special transformers from KONAR – Distribution and Special Transformers (D&ST). Seven earthing transformers that can withstand and limit ground current for five seconds are part of the delivery.
Ivory Coast has long received medium power transformers from D&ST. Additionally, two autotransformers with a combined rated power of 10 MVA are part of the most recent order.
With significant financial expenditures in electrification projects, the project opens the ground for the introduction of distribution transformers on this quickly expanding market.
Due to the Ivory Coast’s strong economic growth and significant investments in electrification, distribution transformers may now be sold there as well thanks to special transformers for that country.
A memorandum of understanding was signed by Siemens Energy and Casa dos Ventos, one of the first and largest investors in the development of wind projects in Brazil, for the supply of the region’s first Sensformer Advanced digitally enabled power transformers.
At the substation of the Rio do Vento wind farm expansion, these transformers are currently in use and digitally connected to a private and secure online platform.
Due to its experience with specially constructed units, Siemens Energy has developed a highly sophisticated design process that allows for flexibility within a specific standardization framework. The main component of a power transformer is its iron core.
To ensure compliance with even the smallest tolerances, computer-controlled machines are used to precisely cut high-grade, cold-rolled, and laser-treated metal sheets with thicknesses of 0.3 mm or less. One of the few transformer producers with the ability to calculate material losses during the cutting of core metal sheets is Siemens. Siemens will be able to confirm the material’s quality and make sure it meets the standards the customer has set.
One of Singapore’s EPC companies, Eastern Green Power Pte Ltd, has placed an order with Toshiba Energy Systems & Solutions Corporation for transformers and related equipment for the urban-type underground substation owned by one of the country’s largest utility companies.
Based on an EPC agreement between EGP and the Utility Company, this project was approved. For the first 230-kV class urban-type underground substation in Southeast Asia, Toshiba ESS will provide three 200 MVA transformers and four 75 MVA transformers.
In accordance with the new NMX-J-351-1-ANCE-2021 regulation, HPS has announced the availability of a full line of low voltage and medium voltage distribution transformers. A high level of quality and service is offered by HPS low voltage and medium voltage (power) distribution transformer, which has come to be associated with HPS. These transformers are appropriate for commercial, industrial, and renewable energy applications whether they are indoor or outdoor.
GE Research and Prolec GE have partnered with Cooperative Energy to create and install the first flexible large power transformer at the utility’s main substation in Columbia, Mississippi, marking a significant step toward modernising the structure of the US grid.
The 165kV, 60/80/100 MVA transformer was created as part of an ongoing project funded by the U.S. The Office of Electricity at the Department of Energy (DOE) has started a six-month field validation to evaluate its performance and determine how this new technology might change grid management in the future.