Kolkata-based power and distribution transformer company Marsons has received two orders totaling ₹349.4 million (~$3,85 million) from Galaxy Solar Energy and LC Infra Projects for inverter duty transformers (IDT) and extra-high-voltage (EHV) power transformers, respectively.

Marsons will supply 72 IDT transformers of various ratings to Galaxy Solar for ₹250.28 million (~$2.76 million) and one each of 70 MVA and 80 MVA 132 kV EHV power transformers to LC Infra for ₹99.12 million (~$1.1 million).

The company will execute both orders within six months.

Marsons designs, develops, manufactures, and tests power and distribution transformers. It manufactures furnace, dry-type, and multiple types of special application transformers, ranging from 10 KVA to 160 MVA, 220 kV.

The company is constructing a new facility to enhance its EHV transformer manufacturing capability to up to 315 MVA 400 kV.

Operating at minimum voltage levels of 132 kV, EHV transformers are critical for limiting energy losses over large distances. Such transformers connect different parts of a power grid, transferring voltage from long-distance transmission lines to a lower-voltage level usable by substations and industries.

Common EHV transformer classes include 132 kV, 220 kV, and 400 kV.

Transmission constraints are among the biggest impediments to faster commissioning of renewable energy projects in India. Stakeholders report growing stress in the power system supply chain, with supply falling short of demand for components such as transformers, control relay panels, tower parts, insulators, and gas-insulated switchgear. Longer lead times in procuring these components are causing delays in transmission and power generation projects.

In October, a Central Electricity Authority (CEA) report said a large number of transformer failure incidents go unreported. It noted that many transformers installed in Indian utilities have failed within the first few years of service, which is a matter of concern.

In another report, the CEA reported that 76 extra high-voltage transmission line tower failures occurred across 28 transmission lines, including 220 kV, 400 kV, and 765 kV AC lines, in 2024.