TECO Australia and New Zealand has designed its medium voltage drive to support the local industrial landscape.
Under the technical leadership of TECO Australia and New Zealand product manager for medium and high voltage motors and drives, Bradley Cargill, TECO has positioned the Medium Voltage Drive MV510 as a solution designed to cover all major regional industries, from heavy mining and cement to traditional centrifugal pumps and fans.
At the core of the TECO MV510 is a multilevel H-bridge topology utilising 690V power cells. This specific architecture provides a significant advantage for site maintenance teams: because the internal power cells operate at 690V, high voltage paperwork and procedures typically required for maintenance are not necessary for power cell interventions.
Furthermore, TECO has standardised these power cells across the entire range. This allows end users to optimise spare parts inventory significantly; a site can operate a 1MW 3.3kV unit and a 5MW 11kV unit while sharing the same set of critical spare components. This commonality reduces the risk of prolonged downtime due to component unavailability.
The MV510’s multilevel H-bridge topology produces a near-sinusoidal output voltage.
This design ensures strict compliance with IEEE-519 requirements for Total Harmonic Distortion, protecting the integrity of the motor insulation without the need for additional, space-consuming external filtering equipment.
An inbuilt dry-type transformer further enhances flexibility, allowing engineers to size motors to optimise the specific application rather than being constrained by the available supply voltage onsite.
The TECO MV510 is engineered for sophisticated multi-motor control. Through a built-in bypass cabinet, the drive can start several motors and transfer them to line voltage (and back to drive control), allowing customers to manage a mix of fixed and variable speed assets. This capability reduces overall installation costs and minimises the physical footprint required in the motor control centre.
For heavy-duty grinding circuits, the TECO MV510 integrates dedicated Mill Asset Protection. Features such as frozen charge protection and start ball run SAG capability are essential safeguards that prevent catastrophic structural damage to mill shells and bearings during high-torque start-up sequences.
Local expertise with global reach
TECO Australia and New Zealand serves as a centre of excellence for these medium-voltage solutions. Backed by a local engineering team that travels internationally, with successful onsite support provided as far afield as Mexico and Senegal, TECO ensures that technical accountability is maintained throughout the asset’s lifecycle.