M/s. Involute Engineers & Industries (M/s. IEI) has been engaged in manufacture and indigenous development of Electro-mechanical & Electro-pneumatic equipment for Railway transportation, since its inception in 1984. Major thrust of its activity has been the import substitution in above mentioned field.
M/s. Involute has rendered a considerable and meaningful contribution by indigenously developing among others a variety of critical spares & sub-assemblies for N-32 Tap Changer. N-32 Tap Changer is a vital equipment in A/c Electric Locomotive. IEI has been a major supplier of railway componentsto M/s. Bombardier, Adtranz, Baroda (formerly M/s. Asea Brown Boveri Ltd.) and OEM for N-32 Tap Changer. Presently, M/s. IEI caters to the maintenance demand for Tap Changer & Circuit Breaker spares to all the Electric Loco Sheds in India under various Zonal Railways.
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