Novel Thermal Design Reduces Inverter Volume

Lenze has developed 8200 vector inverters using the 'cold plate' technique for cases where the inverter can be mounted directly onto a substantial heatsink. AC Tech Lenze 8200 vector inverters are available for power 0.55 to 90kW with three-phase supply. In the more popular smaller sizes up to 22kW, a space saving variant can reduce the requirement for panel space by up to 40%. By dissipating the heat outside the cabinet, these 'cold plate' versions enable panels to have higher enclosure ratings. Alternatively a plate with external cooling by liquid or air can be used. The cold plate versions of the 8200 vector inverters have no heat fins, so heat generated is passed to the mounting plate and transmitted out of the cabinet. In this way inverters require less mounting depth and the space savings are substantial. For a 1.5kW inverter the saving is 25%, rising to 40% for a 22kW inverter.

Therefore panels can be smaller and costs reduced. As the heat is now transmitted to outside of the cabinet, requirements for a flow of cooling air through the cabinet are removed. Cabinets can be sealed and protection to IP65 is easier to achieve. This is particularly advantageous in dusty conditions where any through flow of air would cause a dust build-up. Above 22kW the cold plate design is not available. However an alternative 'push-through' design can be used right up to 90kW. Here the Lenze Drives inverter heatsink is mounted outside of the panel, gaining the advantages of panel space and enclosure as described. The concept of the 8200 vector frequency inverter is based on a modular system of complementary components. Combined with a Lenze geared motor or a Lenze three-phase AC motor, it can be used to implement electronic variable speed drives for a multiplicity of applications. Compact: Side-by-side mounting saves space in the control cabinet. Integrated filters (optional) simplify installation. Flexible: The modular structure enables the inverters to be optimised for your application. This results in cost-effective but high-performance drive solutions. Whether as a "stand-alone" inverter with setpoint selection via potentiometer or a networked inverter with speed feedback in master/slave mode, the inverter functions can be adapted to suit every application.

Pro-Face Xycom 12" Operator Interface

A great, first impression, multi-port 12 inch dedicated operator interface touch screen for OEMs and high graphical detail applications. The Pro-Face Xycom AGP3600 is part of a latest line of Pro-face brand operator interfaces. The bright, crisp, and clear SVGA display of this model is complemented with a large viewing area, high resolution no-grid analog resistive touch screen providing a higher level of screen clarity and precise part placement. A host of features include audio output, Ethernet, USB, RS232,422,485 serial ports, Direct MPI support up to 12Mbps plus compatible with the GP2000-VM41 4 channel video mix module. Known for our network connectivity the AGP3600 supports up to four simultaneous protocols making the AGP3600 a highly versatile operator interface.

Data logging and, trending, OEM field upgrades, recalling imported images or capturing images from a video camera, are all possible with the APG3600 Xycom Operator Interface and a CompactFlashTM card. Up to 512Mb storage Compact flash cards are optionally available. For data intensive applications with very detailed graphic requirements, the AGP3600 is a great choice! For data intensive applications with very detailed graphic requirements, the AGP3600 is a great choice! The AGP3000 is compatible with both types of bar code readers. Using these bar code . data formats you can collect 84 to 1000 times more data than conventional bar-code readers. Bar code reader setup is easily accomplished by one simple check box in GP PRO-EX HMI Development software.

On-the-wall guide to circuit breaker selection

ABB Low Voltage Products has introduced three wallcharts to help take the confusion out of circuit breaker selection. Containing comprehensive information including selection tables and calculations, the charts explain how to size and select circuit breakers for transformer, generator and power factor correction applications. Each chart includes detailed unit measurement tables to help match exact current, short circuit and overload current data to the appropriate circuit breaker. The Power Factor Correction and Circuit Breaker Selection wallchart explains how to select circuit breakers for capacitor bank switching and protection applications. By using the wallchart as a guide, users can match load requirements against the data provided for ABB's TMax, Isomax and Emax circuit breakers to help them pick the best device for their application.

The second wallchart, Circuit Breaker Selection for Protection and Switching of 400V Transformers, explains how to select the appropriate type of circuit breaker for protection on the LV side of an MV-LV transformer. Users can match their requirements against the wallchart's at-a-glance selection table, which shows the main ABB Circuit Breaker options. Also included is advice for consideration of other factors that can affect selection including selectivity and back-up protection. The third wallchart, Circuit Breaker Selection for Generator Protection, covers the selection of circuit breakers for generator protection and switching applications. The need to guarantee an ever greater continuity of service has led to an increase in the use of emergency supply generators either to replace or supplement the public utility supply network. The wallcharts illustrate the main miniature circuit breaker, moulded case circuit breaker and air circuit breaker options for generator protection applications up to 690V.