Butler Group Test and Measurement Environmental and Process Test Programmable Power Supplies MT Series 100 kW to 2000 kW+

MT Series 100 kW to 2000 kW+

Features


High Frequency IGBT-based Switch-Mode Design

The MT Series utilizes the latest IGBT devices to drive down size and increase performance. The high frequency design delivers fast transient response and low output ripple. This performance coupled with Magna-Power's rugged current-fed power processing, enables confidence in even the most demanding applications.

Fully Programmable Power

All MT Series functions and features of are available and programmable from a variety of control methods, including:

  • Stepless front panel knobs
  • 37-pin isolated analog-digital I/O
  • Computer interface with software and drivers

Various programming interfaces are available, such as LXI TCP/IP Ethernet (+LXI), IEEE-488 GPIB (+GPIB), Edgeport USB, Accessory (+USB), RS485 Accessory (+RS485).

Large 100 kW, 150 kW and 250 kW for High Power DC Demands

Magna-Power's MT Series consists of large high-power IGBT-based modules: individual 100 kW, 150 kW and 250 kW power supplies. As an added safety measure, all MT Series VI units include an input AC breaker rated for full power. The independent IGBT-based MT Series units are among the largest standard switch-mode power supplies on the market, minimizing the number of switching components, making it more economical and simpler to integrate than smaller module sizes.

Designed for Safety

MT Series power supplies have extensive diagnostic functions, including: phase loss, excessive thermal conditions, over voltage trip (programmable), over current trip (programmable), cleared fuse, and excessive program line voltage. When in standby or diagnostic fault, the AC mains are mechanically disconnected via an embedded AC contactor, providing confidence that the unit is only processing power when desired.

Scalable Master-Slave Operation

For maximum flexibility, all MT Series power supplies can be scaled a in master-slave configuration for higher voltage or current output. Using the plug and play Universal Interface Device (+UID47), units are tied together in via their 37-pin I/O, allowing an increase in system current when configured in parallel or increase in system voltage when configured in series—up to the power supply's output isolation rating.

Extensive Programming Support and Included Software

All MT Series power supplies come standard with a National Instruments LabVIEW™ and LabWindows™/CVI drivers. In addition, an IVI driver is included supporting Visual C++, Visual C#, Visual Basic .NET, MATLAB, Measure Foundry, PAWS, Visual Basic 6.0, and Agilent VEE Pro. A Standard Commands for Programmable Instrumentation (SCPI) command set is also supported, allowing programming using raw ASCII commands. Finally, Magna-Power's RIS Panel software is provided allowing for a virtual control panel controlling the power supply via any of the available communication interfaces.

MT Series Harmonic Neutralization

Magna-Power's Harmonic Neutralizers eliminate families of harmonic components by multiplying the number of input phases with specially wound magnetic components, reducing the total harmonic distortion (THD). These magnetic components, in combination with equally loaded, high-power DC power supplies, offer a cost-effective solution to maintaining power quality at acceptable levels, enabling applications to benefit from Magna-Power's reliable high-frequency switch-mode power supplies, extended into multi-megawatts. A 12-pulse Harmonic Neutralizer is embedded in all 250 kW models and its installation is transparent to the end user. For applications demanding an even better THD level than that provided by a 12-pulse waveform, external 24-pulse and 48-pulse harmonic neutralizers are available from Magna-Power. Contact you local sales partner for more information.

Understanding AC Harmonic Waveforms

The following figures are representative of expected AC current waveforms for the various pulses available from Magna-Power Electronics power supplies. Standard models 1.5 kW through 150 kW produce 6-pulse waveforms, while 250 kW models produce 12-pulse waveforms. Magna-Power Electronics Harmonic Neutralizers suppress families of harmonics by increasing the number of power phases. It can be used when multiple power supplies are used in series or parallel and are equally loaded. Harmonic Neutralizers can produce 12-pulse, 18-pulse, 24-pulse, or 48-pulse waveforms which have harmonic current components on the order of 12n±1, 18n±1, 24n±1, or 48n±1, respectively. The following figures show the theoretical difference for waveforms with a different number of pulses. Harmonic Neutralizers are protected with appropriate sized primary-side circuit breakers.

Why Neutralize Harmonics?

Input current harmonics are a by-product of nearly all power supplies. Power can only be delivered to the load if the frequency and phase of the voltage and current match. For a three phase power supply using a three phase input rectifier, the input current has a theoretical spectrum of 6n±1 where n is an integer incrementing from 1; this is known as a 6-pulse waveform. This means that a power supply with a three phase input rectifier will produce input currents at 1, 5, 7, 11, 13, 17, 19 ... times the fundamental frequency. The theoretical magnitude decays as the reciprocal of the harmonic component. The 5th and 7th harmonic components have magnitudes of 20% and 14% of the fundamental component, respectively.

Harmonics currents in power systems can find unusual paths and can cause problems if the magnitude is significant and there are loads sensitive to harmonic frequencies. For example, lighting ballasts have series connected capacitors and inductors which can be excited by harmonic currents. IEEE has introduced standard, IEEE 519, which defines recommended limits. Implementing this standard requires a knowledge of the power system and other loads producing harmonics. Unfortunately, the standard can allow the same power supply to possibly exceed limits in one application and not in another. In the same respect, a power supply may or may not can cause a harmonic related problem with or without meeting IEEE 519. The best solution to minimize the risk of a harmonic problem is to eliminate the harmonic current at the source.

Models

There are hundreds of possible configurations for the MT Series product. Using the following ordering guide and models chart to define the best model for your application. Need less power? Visit our MS Series product line.

Model Ordering Guide

Models Chart

The following chart details the available standard MT Series models. The Current Maximum (Adc) column is separated by the available power levels. To determine the appropriate model, first select your output Voltage Maximum (Vdc) to find appropriate row. Next, select one desired Current Maximum from the row that contains your desired Voltage Maximum. Then, construct your model number according to the model ordering guide, above. Non-standard voltage and current configurations are available. Configurations above 1000 kW are also available. Please contact your local sales partner for more information.

  • Calibration Available
  • Training Available

Contact us:

Sales +353 1 629 2620

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