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- 78 models
- Heavy-duty floor-standing enclosure
- Expandable into the multi-megawatts
- 100 kW to 2,000 kW+ output power
- 16 Vdc to 6000 Vdc output voltage
- 16.6 Adc to 6000 Adc single unit output current
- High-power harmonic neutralizers
- SCPI Remote Programming API
- High Accuracy Measurements
- Programmable Protection Limits
- NI LabVIEW™ and IVI Driver
High-Power and High-Performance Standard DC Power Supplies Expandable into the Multi-Megawatts
Harmonic Neutralization for Low THD, Made in the USA, Many Options for Tailored Performance
Magna-Power Electronics MT Series uses the same reliable current-fed power processing technology and controls as the rest of the MagnaDC programmable power supply product line, but with larger high-power modules: individual 100 kW, 150 kW and 250 kW power supplies. The high-frequency IGBT-based MT Series units are among the largest standard switched-mode power supplies on the market, minimizing the number of switching components when comparing to smaller module sizes. Scaling in the multi-megawatts is accomplished using the UID47 device, which provides master-slave control: one power supply takes command over the remaining units, for true system operation. As an added safety measure, all MT Series units include an input AC breaker rated for full power.
250 kW modules come standard with an embedded 12-pulse harmonic neutralizer, ensuring low total harmonic distortion (THD). Even higher quality AC waveforms are available with an external additional 500 kW 24-pulse or 1000 kW 48-pulse harmonic neutralizers, designed and manufactured exclusively by Magna-Power for its MT Series products.
Current-Fed Topology: Robust Power Conversion
All MagnaDC programmable DC power supplies utilize high-frequency IGBT-based power processing in current-fed topology. This topology adds an additional stage over the conventional voltage-fed topology for enhanced control and system protection, ensuring that even under a fault condition, the power supply will self-protect. Due to the self-protecting characteristics of this topology, the possibility of fast rising current spikes and magnetic core saturation is eliminated.
In addition to its robust topology, key performance characteristics of MagnaDC programmable DC power supplies include:
- High-accuracy voltage and current programming accuracy
- Class-leading line and load regulation performance
- High 3Φ AC input power factor with in-rush limiting circuitry
- Computer and user I/O isolated from the power supply output
For more details, read: Current-Fed Power Processing—Ride Through Robustness
Designed and Manufactured in the USA, Available Worldwide
For complete control of quality, MagnaDC programmable DC power supplies are designed and manufactured at Magna-Power's vertically integrated USA manufacturing facility in Flemington, New Jersey. Heat-sinks and chassis are machined from aluminum. All sheet metal is fabricated and powder coated in-house. Magnetics are wound-to-order from validated designs based on a model's voltage and current. An automated surface-mount production line places components on printed circuit boards for control, driver, auxiliary power, and display circuits. And finally after assembly, products undergo comprehensive test and calibration, followed by an extended burn-in period.
For more details: Tour Our Manufacturing Operations.
Standard Safety Features
MagnaDC programmable DC power supplies have extensive diagnostic functions, including:
- AC Phase Loss
- Excessive Thermal Conditions
- Over Voltage Trip (Programmable)
- Over Current Trip (Programmable)
- Cleared Fuse
- Excessive Program Line Voltage
- Interlock Fault
When in standby or diagnostic fault, the AC mains are mechanically disconnected by an embedded AC contactor, providing confidence that the unit is only processing power when desired.
Finally, with a dedicated +5V interlock input pin and included +5V reference on all models, external emergency stop systems can be easily integrated using an external contact.
Included Software and Drivers
All MagnaDC programmable DC power supplies come standard with National Instruments LabVIEW and IVI drivers. In addition, the support SCPI command set provides an easy to use API using ASCII commands over any interface.
In addition to being able to develop your own software, Magna-Power's Remote Interface Software is also included with all power supplies. The software provides the user with an easy and intuitive method to operate a Magna-Power Electronics power supply with computer control. The Remote Interface Software has six different windows, including:
- Virtual Control Panel. Use a virtual front panel on the desktop to remote control the power supply from a computer.
- Command Panel. Explore all the available commands, along with logs of what string the software is sending to the power supply; used for developing your own software.
- Register Panel. Quickly get the status of all the power supply registers from one screen.
- Calibration Panel. Recalibrate internal digital potentiometers.
- Firmware Panel. Upgrade the power supply's firmware.
- Modulation Panel. Emulate non-linear profiles, such as solar arrays, pseudo-resistance for N+1 redundancy without wires, or automatic compensation for leadless remote sensing.
The included Remote Interface software supports RS232, LXI TCP/IP Ethernet, and IEEE-488, along with the USB and RS485 converters.

High Performance Master-Slave Operation
All MagnaDC programmable DC power supplies come with master-slaving capability.
The MagnaDC master-slaving strategy helps to ensures no degradation in performance as units are added in parallel or series by providing gate drive signals directly from the master to the slave units. This strategy ensures one control loop for the system and eliminates the noise susceptibility commonly found when sending analog control references over long distances.
The Universal Interface Device 47 (UID47) accessory eases master-slave parallel or series configuration of Magna-Power DC power supplies, enabling near equal current or voltage sharing, depending on the configuration.
Master-slave series operation is supported to combined voltages up to the product's DC Output Isolation specification. No external blocking diodes are requires for series operation.
External User I/O for Analog Control
Using the rear isolated 37-pin I/O connector, included as standard, the MagnaDC programmable power supplies can be completely controlled and monitored using external signals. The voltage, current, over voltage and over current set points are set by applying a 0-10V analog signal. Each diagnostic condition is given a designated pin, which reads +5V when high. Reference +5V and +10V signals are provided, eliminating the need for external voltage signals and allowing the use of dry contacts.
Also, the power supply features a normally closed external interlock, which when enabled, allows the power supply to be tied in with other emergency stop equipment. All these pins are isolated from the output terminals and referenced to earth-ground as standard—no additional isolation equipment or options necessary.
The following list summarizes the available I/O from the power supply:
- 4 analog inputs (0-10V)
- 2 analog outputs (0-10V)
- 5 digital inputs (5V)
- 15 digital outputs (5V)
- +2.5V, +5V and +10V reference signals
With the High Slew Rate Output (+HS) option equipped, high bandwidth operation is enabled along with fast rise times, allowing the MagnaDC programmable DC power supplies to address requirements for Hardware-in-the-Loop (HIL).
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.
Front Panel - Standard
Front Panel - C Version
REM SEN: Remote sense enabled
INT CTL: Front panel start/stop/clear enabled
EXT CTL: External start/stop/clear enabled
ROTARY: Front panel rotary knob input
EXT PGM: External analog voltage-current control
REMOTE: Computer control
LOC: Interlock
PGL: External input voltage beyond limits
PHL: Under-voltage AC input
THL: Over-temperature condition
OVT: Over-voltage protection has tripped
OCT: Over-current protection has tripped
MENU: Selects function
ITEM: Selects item within function
V/I DIS: Displays voltage-current settings
TRIP DIS: Displays OVT and OCT setting
CLEAR: Clears settings or resets fault
ENTER: Select item
Models
Choose from 78 MT Series Models
There are 78 different models in the MT Series spanning power levels: 100 kW, 150 kW, 250 kW, 500 kW, 750 kW, 1000 kW+.
To determine the appropriate model:
- Select the desired Max Voltage (Vdc) from the left-most column.
- Select the desired Max Current (Adc) from the same row that contains your desired Max Voltage.
- Construct your model number according to the model ordering guide.
100 kW | 150 kW | 250 kW | 500 kW* | 750 kW* | 1000 kW* | |||
---|---|---|---|---|---|---|---|---|
Max Voltage (Vdc) | Max Current (Adc) | Ripple (mVrms) | Efficiency | |||||
16 | 6000 | N/A | N/A | N/A | N/A | N/A | 35 | 90% |
20 | 5000 | N/A | N/A | N/A | N/A | N/A | 40 | 90% |
25 | 4000 | N/A | N/A | N/A | N/A | N/A | 40 | 90% |
32 | 3000 | 4500 | N/A | N/A | N/A | N/A | 40 | 90% |
40 | 2500 | 3750 | 6000 | 12000 | 18000 | 24000 | 40 | 91% |
50 | 2000 | 3000 | 5000 | 10000 | 15000 | 20000 | 50 | 91% |
60 | 1660 | 2500 | 4160 | 8320 | 12480 | 16640 | 60 | 91% |
80 | 1250 | 1850 | 3000 | 6000 | 9000 | 12000 | 60 | 91% |
100 | 1000 | 1500 | 2500 | 5000 | 7500 | 10000 | 60 | 91% |
125 | 800 | 1200 | 2000 | 4000 | 6000 | 8000 | 100 | 91% |
160 | 620 | 900 | 1500 | 3000 | 4500 | 6000 | 120 | 91% |
200 | 500 | 750 | 1250 | 2500 | 3750 | 5000 | 125 | 91% |
250 | 400 | 600 | 1000 | 2000 | 3000 | 4000 | 130 | 92% |
300 | 333 | 500 | 833 | 1666 | 2499 | 3332 | 160 | 92% |
375 | 270 | 400 | 660 | 1320 | 1980 | 2640 | 170 | 92% |
400 | 250 | 375 | 625 | 1250 | 1875 | 2500 | 180 | 92% |
500 | 200 | 300 | 500 | 1000 | 1500 | 2000 | 220 | 92% |
600 | 160 | 240 | 400 | 800 | 1200 | 1600 | 250 | 92% |
800 | 120 | 180 | 300 | 600 | 900 | 1200 | 300 | 92% |
1000 | 100 | 150 | 250 | 500 | 750 | 1000 | 400 | 92% |
1250 | 80 | 120 | 200 | 400 | 600 | 800 | 500 | 92% |
1600 | 62 | 90 | 150 | 300 | 450 | 600 | 600 | 92% |
2000 | 50 | 75 | 125 | 250 | 375 | 500 | 800 | 92% |
2500 | 40 | 60 | 100 | 200 | 300 | 400 | 900 | 92% |
3000 | 33 | 50 | 80 | 160 | 240 | 320 | 1000 | 92% |
4000 | 24 | 36 | 60 | 120 | 180 | 240 | 1100 | 92% |
5000 | 20 | 30 | 50 | 100 | 150 | 200 | 92% | |
6000 | 16.6 | 25 | 41.6 | 83.2 | 124.8 | 166.4 | 92% | |
AC Input Voltage (Vac) | Input Current Per Phase (Aac) | |||||||
380/415 Vac, 3Φ | 184 | 276 | 440 | 880 | 1320 | 1760 | ||
440/480 Vac, 3Φ | 159 | 238 | 380 | 760 | 1140 | 1520 |
* Power levels marked with an asterisk are achieved through master-slave parallel of 250 kW models. Contact sales for more information or to inquire for systems as large as 4,000 kW+.
Specifications
Technical Product Data
415 Vac (operating range 373 to 456 Vac)
440 Vac (operating range 396 to 484 Vac)
480 Vac (operating range 432 to 528 Vac)
> 0.96 at maximum power, 250 kW models
Current mode: ± 0.02% of full scale
Current mode: ± 0.04% of full scale
Model specific. Refer to chart of available models.
100 ms for an output current change from 0 to 63%
8 ms for an output current change from 0 to 63%
2 Hz with remote analog current programming
45 Hz with remote analog current programming
LXI TCP/IP Ethernet RJ45 (Option +LXI)
IEEE-488 GPIB (Option +GPIB)
Referenced to Earth ground; isolated from power supply output
See User Manual for pin layout
Current output monitoring: 100 Ω
+10V reference: 1 Ω
Output: 0 to 5 Vdc, 5 mA drive capacity
67" H x 48" W x 31.5" D (170.2 x 121.9 x 80.0 cm)
1600 lbs (725.8 kg)
67" H x 48" W x 31.5" D (170.2 x 121.9 x 80.0 cm)
2100 lbs (952.5 kg)
67" H x 72" W x 31.5" D (170.2 x 182.9 x 80.0 cm)
3300 lbs (1496.9 kg)
0.06%/°C of maximum output current
CISPR 22 / EN 55022 Class A
Diagrams
MT Series Dimensional Drawings
Options and Accessories
Available for the MT Series
Request a Quote
Get MT Series product pricing
How to Buy
In the USA and Canada, Magna-Power sells it products directly from the factory, with a North American network of technical representatives. Magna-Power products are available worldwide through direct sales offices and authorized distributors. Requests from this form will either be quoted directly or automatically routed to the appropriate sales partner for quote.
Build-time
Magna-Power products are made-to-order with build-times that vary depending on the model's maximum power rating. The current build-time for the MT Series is 6-8 weeks.
Sales Partners
In the USA and Canada, Magna-Power sells it products directly from the factory, with a nationwide network of technical representatives. Magna-Power products are available available worldwide through direct sales offices and authorized distributors. Requests from this form will either be quoted directly or automatically routed to the appropriate sales partner for quote.
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