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A 1.5MW drive for hire

06 January 2011

A 1.5 MW variable speed drive (VSD) is now available for hire from VSD hire specialist Quantum Controls. Manufactured by ABB, the 1.5MW, 2.7kA VSD is the largest in the UK available for hire and sets a new milestone in Quantum’s growing hire business. The drive was added following a growing demand from OEMs and end-users alike which have a variety of uses for a hire drive of this capacity, from testing through to breakdown or simply to try before they buy.

Among the OEMs that can benefit from hiring the VSD are large pump-set makers, high pressure vessel manufacturers and those requiring high voltages for testing. Such tests may be required at short notice and the VSD allows various voltages to be selected from 400 V to 11 kV using dedicated output sine filters and selectable output transformers to suit the voltage requirements.

The VSD offers an alternative to costly, multiple diesel generator sets that are used to provide high power requirements. The drive achieves this by keeping the starting and running currents to a minimum, compared to that of other conventional methods of motor control.

The VSD option overcomes the direct-on-line starting currents seen on large motors when temporary tests or factory acceptance tests are required.  Normally several diesel generators sets are synchronised together. These tend to be over-sized, costly and environmentally unfriendly to accommodate the higher starting torque and accompanying peak current.

With the drive, the motor can be ramped up gradually, thereby reducing the overall power required and reducing the associated space and cables.

The drive is installed within a self-contained shipping container that arrives on site complete with heating, lighting, ventilation fans, filters and power supply sockets. The drive itself is totally enclosed to IP65 rating within the container and features a wide range of built-in options including breaker, contactors and communication options. Hiring of the drive comes complete with engineers to install and commission the drive. It is also backed by a fixed time response contract.

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