We design. We manufacture. We test. We follow through. NPT develops and produces rectifiers for direct-current systems, with in-house manufacturing in São Paulo.
The brand grew out of the industrial experience accumulated in the operation that originated from EFACEC and was later consolidated within the POWER ecosystem. Growth in rectifier engineering and manufacturing led to the creation of a dedicated identity focused specifically on DC power supply systems.
Throughout this history, many units were manufactured and supplied under the POWER name. As NPT was consolidated as a specialized brand, new deliveries adopted the NPT identity.
Today, POWER and NPT are companies within the same economic group, controlled by MACH Capital. POWER focuses on substation automation, protection, control, supervision, retrofit, and engineering, while NPT focuses on industrial rectifiers and DC systems.
Technical, industrial, and operational continuity — rectifier expertise did not appear overnight.
Industrial experience and engineering in power systems.
Expansion of the manufacturing and supply of direct-current systems, with a large volume of rectifiers produced over the years.
Consolidation of a dedicated brand and operation focused on industrial rectifiers.
POWER and NPT integrated into the same group, with complementary specializations and independent management.
NPT designs and manufactures industrial rectifiers at its plant on Rua Agostinho Gomes, in the Ipiranga district of São Paulo. In-house manufacturing provides direct control over engineering, quality processes, and delivery schedules for CIB-family equipment.
Every rectifier leaving the plant undergoes functional testing before shipment, ensuring that the equipment reaches the customer ready for field commissioning.
Survey of the system’s load, voltage, and current.
Definition of technology, architecture, and redundancy.
Rectifier production at our own plant in the Ipiranga district.
Functional testing before leaving the factory.
The brand changed. The experience remained.
An important part of the rectifier line's history was built when this equipment was still associated with the POWER brand. The transition to the NPT brand represents specialization and consolidation of an operation dedicated to DC systems, not a break with that history.
Direct-current power systems applied in power utilities, rail transit systems, generation, and critical infrastructure.
Power generationCachoeira Dourada Hydroelectric Plant
110-125 VDC / 200 A thyristor-based system for the Cachoeira Dourada hydroelectric plant.
Thyristor-based direct-current power system for the Cachoeira Dourada Hydroelectric Plant, with three-phase input at 380-400 VAC / 60 Hz and output at 110-125 VDC / 200 A, dedicated to the reliability of the generation plant’s essential systems.
Energy utilityFundão Substation
125 VDC / 100 A thyristor-based system for the Fundão substation.
Thyristor-based direct-current power system for the Fundão substation, with three-phase input at 220 VAC / 60 Hz and output at 125 VDC / 100 A, dedicated to the essential systems of the utility’s operation.
Power generationHenry Borden Power Plant
125 and 250 VDC for the Henry Borden power plant.
Direct-current power systems of 125 VDC and 250 VDC for the Henry Borden power plant, including manufacturing, installation, commissioning, and the respective distribution panels.
Mobility / metro-rail125 VDC thyristor-based and switched systems for Lines 1 and 2 of Rio Metro.
Renewal of the direct-current power systems for the auxiliary and primary substations of Rio Metro Lines 1 and 2: thyristor-based solutions at 125 VDC / 100 A and 35 A, and switched solutions at 125 VDC / 35 A, with input at 220 VAC or 450 VAC.
We design exclusively rectification systems — without spreading engineering and production across other product lines.
Production at our Ipiranga plant in São Paulo, with direct control over engineering, quality, and delivery times.
From project specification to after-sales, the customer is supported by the same technical team that manufactured the equipment.
Both companies share a common technical origin in the Brazilian power sector but now have clearly specialized roles: POWER in substation automation, protection, control, supervision, and retrofit; NPT in industrial rectifiers and DC systems. They are sister companies within the MACH Capital group, with a connected technical history and distinct specializations.
We evaluate new commercial partners across different regions and segments. We seek long-term relationships with companies and professionals who already have presence and knowledge of the industrial market.
Tell our team the voltage, current, and application of your project. We’ll get back to you with the right technical configuration for your direct-current system.
