Delta SM15K DC Power Supply
15kW Bi-directional DC Power Supplies
Delta SM15K 15kW Bi-directional DC Power Supplies
The Delta SM15K DC Power Supply is a 15kW bidirectional dc power supply from Delta built for test engineers who need reliable source and sink performance without the overhead of expensive cooling infrastructure. Whether you are running battery cycle tests, PV simulations, or need a high voltage dc power supply up to 1500V, the Delta SM15K delivers flexible constant power output with over 95% efficiency across the full operating range.
Featured Benefits
Bi-directional power supply with standard 15 kW source and sink
Flexible output with Constant Power characteristics
Power Regeneration Technology: in sink mode the PSU returns the energy back into the grid
Easy Master/Slave parallel & series operation up to 900kW
Very low heat dissipation. Efficiency is more than 95%. No need for expensive cooling systems
Excellent dynamic responses to load changes including all-digital control to adapt regulation to match load type
Designed for long life at full power
Protected against all overload and short circuit conditions
Models Table
| Models | Voltage range | Current range |
|---|---|---|
| SM 70-CP-450 | 0 - 70 V | -450 - 450 A |
| SM 210-CP-150 | 0 - 210 V | -150 - 150 A |
| SM 500-CP-90 | 0 - 500 V | -90 - 90 A |
| SM 1500-CP-30 | 0 - 1500 V | -30 - 30 A |
The Delta SM15K fits naturally into integrated power supplies configurations thanks to its Master/Slave interface, up to 60 units can be paralleled to reach 900kW in a single rack build. As a fully capable bidirectional dc power supply, it handles both source and sink duties in the same chassis, keeping your DC Power Supplies footprint compact and your test lab energy-efficient.
Functionalities
Operation on a wide range of three phase AC input voltages
Standard Ethernet & Web interface
EMC surpasses CE requirements: low emission & high immunity
Low audible noise: temperature controlled cooling fans
Durable digital encoders for voltage & current adjustment and menu operation
Large user display, menu driven operations
Typical Applications
- Solar inverter testing, PV-Simulation
- Car testing systems
- ATE in industrial production lines
- Plasma chambers
- Automotive battery simulations
- Controlled battery (dis)charging
- Lasers
- Sustainable energy
- Driving PWM-Controlled DC motors
- Accurate current sources
- Aerospace and military equipment
Standard Features
Bi-Directional Two-Quadrant Output
Full power Bi-Directional two quadrant operation maintains the DC output voltage constant whether the output power is positive or negative. Ideal for PWM-speed controlled DC-Motors and ATE systems.
Digital CV-, CC- and CP-Settings
Reliable, long-life digital encoders are implemented at the front panel. Includes total front panel lock (also for CV- / CC-knobs) and a coarse or fine pitch adjustment depending on the turning speed.
Sequencer
Arbitrary Waveform generator or standalone automation.
High Voltage Isolation
A high DC output isolation allows floating operation up to 1000 V for SM70-CP-450, SM210-CP-150, and SM500-CP-90, and up to 1500 V for SM1500-CP-30.
Ethernet Interface
Ethernet Interface for programming and monitoring
UBS-Input
Not yet available:
Front and rear panel UBS-Input for exchange of setting and waveforms (Host / Type-A), or for controlling the unit (Device / Type-B).
Options
Software Control and Interfaces
Field installable interfaces:
- Master/Slave Controller
- Isolated Contacts
- Serial Controller supporting multiple protocols: RS 232, RS 485, RS 422, and USB (Device)
- Digital I/O
- Isolated Analog Programming
Order Codes:
- INT MOD M/S-2
- INT MOD CON
- INT MOD SER
- INT MOD DIG
- INT MOD ANA
Specifications
| Specifications | SM 70-CP-450 | SM 210-CP-150 | SM 500-CP-90 | SM 1000-CP-45 | SM 1500-CP-30 |
|---|---|---|---|---|---|
| Voltage Rating | 0 - 70 V | 0 - 210 V | 0 - 500 V | 0 - 1000 V | 0 - 1500 V |
| Current Rating | ±450 A | ±150 A | ±90 A | ±45 A | ±30 A |
| Power Ratings | 15 kW | ||||
| Max Power Density | Approx. 0.75 kW/kg (27 kg/unit, high efficiency) | ||||
| Max Parallel Power | Up to 900 kW (60 units) | ||||
| Vslew, CV (10%-90%) Output voltage step Load = 15 kW Load = 1500 W |
0 → 33 V 2.2 ms 1.5 ms |
0 → 100 V 1.6 ms 1.3 ms |
0 → 167 V 1.5 ms 1 ms |
0 → 333 V 1.5 ms 1 ms |
0 → 500 V 1.5 ms 1 ms |
| Output voltage step Load = 15 kW Load = 1500 W |
0 → 70 V 5.5 ms 3.5 ms |
0 → 210 V 3 ms 2.7 ms |
0 → 500 V 4.5 ms 3.5 ms |
0 → 1000 V 4.5 ms 3.5 ms |
0 → 1500 V 4.5 ms 3.5 ms |
| Source Efficiency | 95-96 % | ||||
| Sink Efficiency | 95-96 % | ||||
| Power Factor (at rated power) | 0.996 / 0.988 | ||||
| Ripple, P-P Source Sink |
60 mV 50 mV |
150 mV 150 mV |
55 mV 35 mV |
150 mV 75 mV |
150 mV 130 mV |
| Ripple, RMS V Source Sink |
10 mV 08 mV |
30 mV 30 mV |
10 mV 07 mV |
25 mV 15 mV |
25 mV 15 mV |
| Minimum Sink or Load Voltage | 1.2 V @ – 450 A | 3.0 V @ – 150 A | 7.0 V @ – 90 A | 12.0 V @ – 45 A | 19.5 V @ – 30 A |
| Minimum Sink or Load Current | 0.4% | ||||
| Ripple, RMS I Source Sink |
100 mV 100 mV |
- - |
45 mV 45 mV |
45 mV 60 mV |
12 mV 10 mV |
| AC / DC | 3750VRMS (1 min.) | ||||
| AC / Casing | 2500 VRMS | ||||
| DC / Casing | 1000 VDC 12 | 1500 VDC 12 | |||
| MTBF | 500,000 hrs | ||||
| Supported Protocols | RS‑232, RS‑422/485, USB, Ethernet, Digital I/O, Isolated Analog | ||||
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FAQ
The SM15K is a 15 kW bi directional DC power supply from Intepro/Delta, capable of supplying and absorbing power into the grid. Its key feature is Power Regeneration Technology, which enables energy to be returned to the grid, delivering high efficiency and low heat dissipation.
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