Delivered projects

Itam/Energisa: another project delivered!

For ITAM, we designed and manufactured the control cabinet of a 10/12.5/15 MVA, 34.5/13.8 kV regulating transformer for end customer Energisa Mato Grosso, with digital protection and monitoring, forced cooling, and tap-changer control.

By Ricardo Coracini
December 8, 2025
1 min read

Customer: ITAM – Indústria de Transformadores Amazonas
End customer: Energisa Mato Grosso
Product: Design and manufacture of a control cabinet for auxiliaries, forced cooling, digital monitoring, digital protection, and tap-changer control for a 10/12.5/15 MVA, 34.5/13.8 kV regulating transformer.

Integrated equipment and sensors

Design drawing, front view: on the left, the mounting plate with relays, terminal blocks, and wiring ducts; on the right, the door with its control devices — Cabinet design: front view of the mounting plate and door

SEL-2414 temperature monitor
SEL-2440 data acquisition relay
SEL-2505 relay in the parallel-operation control
Gas sensor
Tap-changer membrane rupture relay
Digital oil level monitor
Digital OLTC oil level monitor
OLTC torque monitor

Assembled cabinet, door open: an SEL relay, terminal blocks, and wiring ducts on the orange plate; on the door, another SEL device, auxiliary relays, and miniature circuit breakers — The assembled cabinet with the door open

Tank oil temperature sensor
Ambient temperature sensor
OLTC oil temperature sensor
Forced-cooling control in Manual, Automatic, and Remote modes
Time-delayed cooling start
Dual, integrated RS-485 network
Media converter with fiber-optic DNP3 output

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