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High power
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High efficiency
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Constant power and Bidirectional
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Easy Master/Slave
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Output bus bar kits
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Plug-and-play interfaces

High-Power programmable DC Supply Systems

Advanced applications require advanced power solutions. The SM15K series power supplies are engineered for high efficiency, stability, and reliability. By combining multiple SM15K units, you can achieve a modular and scalable power system with an output current of up to 27,000 A, featuring a bidirectional constant power curve.

Modular Power System

The SM15K series enables a fully modular high-power system, scalable up to 900 kW using Master/Slave interface cards and output bus bar assembly kits. This flexible solution allows systems to be quickly assembled or disassembled, adapting effortlessly to changing power requirements.

The master unit simplifies system configuration through front panel controls, a web interface, or Ethernet connectivity. Additional interface cards can be integrated at any time, expanding the system’s functionality and connectivity.

Key Benefits of Modular Power:

  • Scalability – Expandable up to 900 kW by adding additional units.
  • Rapid Deployment – Quick assembly and disassembly in minutes.

  • Versatile Control Options – Configure via front panel, web interface, or Ethernet.

  • Seamless Connectivity – Easily extend functionality with optional interface cards.
     

Bidirectional Power Flow

The SM15K series features true bidirectional power flow, absorbing 100% of power and operating symmetrically across both quadrants. Voltage and current are fully programmable from zero to maximum, enabling precise control over energy flow.
With Delta’s Power Regeneration Technology, the SM15K achieves up to 95% efficiency, returning full power to the grid, eliminating the need for costly water-cooling systems. 

This results in: Lower operating costs, reduced carbon footprint, compactness, and energy-efficient test setups. These advantages make the SM15K high-power system an ideal solution for battery testing, renewable energy research (PV, hydrogen, fuel cells), and other high-power industrial applications.
 

Excellent Performance

Even as a system of multiple SM15K units delivering more power, the system maintains excellent dynamic load response, ensuring high stability and reliability in operation. Consult the data sheet of the SM15K series for more information. Equipped with advanced features such as Ethernet interface, built-in sequencer, PC control software, fine-tune settings, and sink mode, the SM15K series offers comprehensive functionality out of the box. Optional plug-and-play interfaces for master/slave operation, digital I/O, interfaces, or analog programming further enhance usability and customization options. See the data sheets of the SM15K series and Master/ Slave interface for more information.

Availability

Current availability:

In-stock, or approx. 4-6 week build time if model unavailable

Models

Unit Voltage Current VI-curve
SM70-CP-450 units in parallel (up to 60, 900 kW)
0 - 70 V
-27000 - 27000 A
Power_1
SM210-CP-150 units in parallel (up to 60, 900 kW)
0 - 210 V
-9000 - 9000 A
Power_1
SM500-CP-90 units in parallel (up to 60, 900 kW)
0 - 500 V
-5400 - 5400 A
Power_1
SM1000-CP-45 units in parallel (up to 60, 900 kW)
0 - 1000 V
-2700 - 2700 A
Power_1
SM1500-CP-30 units in parallel (up to 60, 900 kW)
0 - 1500 V
-1800 - 1800 A
Power_1

Features

  • 15 - 900 kW bidirectional DC source & sink
  • Constant-power curve output for extended operating range
  • Regenerative design: sink power returned to the grid
  • ≥ 95 % efficiency resulting in low heat dissipation
  • Fast digital control with tunable load response
  • Rated for continuous full-power operation
  • Comprehensive overload and short-circuit protection

Functionalities

  • Wide-range three-phase AC input
  • Expandable in functions, interfaces and Master-Slave
  • Built-in Ethernet interface with browser-based web interface
  • Digital encoders for voltage/current setting and navigation
  • Large front-panel display with menu-driven operation
  • Temperature-controlled fans for low audible noise
  • EMC performance beyond CE (low emission, high immunity)

Specifications

  • Specifications: See single SM15K unit
  • Recovery time: 2x the values of a single unit
  • Ripple and noise: values of a single unit
  • Programming speed: 2x the values of a single unit
  • Operating temperature: -20 to +50 ºC

Standards

  • Emission: EN 61326-1 (class B equipment, for use in domestic establishment)
  • Immunity: EN 61326-1 (equipment for use in industrial and domestic establishment)
  • Safety: EN 60950-1 / EN 61010-1
  • Protection class: IP20

Dimensions and weight

  • Width: 19 inch
  • Height: > 3 U
  • Depth: 591 mm
  • Weight: > 27 kg
HPS_dimensions
SM500-CP-90-3-VA
SM500-CP-90-3-AA

Interfaces

Add-ons to be added at any time

Request a quote

Select your model, options, and interfaces, and enter your application details. We’ll then provide you with a tailored quote. For additional options or more information, feel free to contact one of our experts.

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Delta Elektronika

Vissersdijk 4
4301 ND Zierikzee
The Netherlands

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