APS DCB Series Programmable Bi-directional DC Supply and Load

The DCB Series of precision Regenerative Two Quadrant DC power Supplies uses state of the art field programmable logic array (FPGA) technology to implement a digital power conversion topology that combines a DC source with a Regenerative DC load into a single unit. High efficiency energy recycling back to the grid results in significant energy and HVAC cost savings, especially for large EV battery pack applications. Packaged in a compact, standard 19” rack mount chassis, these powerful functions are easily accessible through an easy to use, color touch screen based user interface from the front panel or by sending commands over one of several available digital control interfaces.

The ability of the DCB Series to both source and sink DC power using regenerative technology makes them ideally suitable for a E-Mobility development and test applications. With power levels from 2500W to 15000W per 3U chassis and 30000W per 4U chassis and the ability to parallel units for higher power needs, a wide range of present and future power demands can be met.

All DCB models are equipped with a flexible auto-ranging output stage which provides higher output voltage at lower output current, or higher output current at lower output voltage, always controlled by the adjustable power set value . Therefore, a wide range of applications can be covered by the use of just one DCB model.

For power requirements higher than 30kW, refer to the high power master/slave cabinet systems.

Features

• Bi-directional, regenerative DC Supply and Electronic Load combination
• Output voltage ranges from 60 V up to 2000 V
• Constant Power Auto-ranging Voltage/Current profile
• Current: up to 1000A, parallelable for higher current
• Output power 2.5, 5, 7.5, 10 or 15 kW per 3U chassis and 30kW per 4U chassis
• Parallel mode expandable up to 1920 kW
• High overall efficiency up to 95% saves on energy cost
• Three phase universal input voltage 208Vac~480Vac wide range
• Flexible, precisely regulated output power stages
• Various protection circuits (OVP, OCP, OPP, OTP)
• Intuitive TFT touch panel with display of settings, read-backs, status and notifications
• Remote sensing with automatic open sense detection
• Galvanically isolated analog interface and USB port
• Integrated function generator
• Internal resistance simulation and regulation
• Optional, digital interface modules
• GPIB interface (available on 3U models only)
• SCPI commands and ModBus RTU (optional: ModBus TCP) support

Common Specifications

• AC Input
  • Input Voltage:
    • HP models: 208VLL ~480VLL ±10% 3ph
  • Frequency:  45-66Hz
  • Power Factor:  > 0.99
• DC Output
  • Accuracy:  < 0.1% of F.S.
  • Load regulation 0-100%:  < 0.05% of F.S.
  • Line regulation ±10% ΔVac:  < 0.02% of F.S.
  • Response Time 10-100% load (Source):  < 2 msec
  • Slew rate 10-90% (Source):  < 30 msec
  • Overvoltage protection:  Adjustable, 0~110% Vnom
• DC Current
  • Accuracy:  < 0.2% of F.S.
  • Load regulation 0-100% ΔVdc:  < 0.15% of F.S.
  • Line regulation ±10% ΔVac:  < 0.05% of F.S.
  • Slew rate 10-90% (Sink):  < 1 msec
• DC Power
  • Accuracy:  < 1.0% of F.S.
• Overvoltage category:  2
• Protection:  OT, OVP, OCP, OPP, PF
• Insulation
  • AC input to enclosure:  2500 Vdc
  • AC input to DC output:  2500 Vdc
  • DC output to enclosure (PE):  Model specific. See model tables
• Parallel Operation:  Master-slave, up to 32 units
• Regulatory Standards:  EN 61010, EN 61000-6-2:2016-05 and IEC 61000-6-3:2011-09 Class B
• Environmental
  • Pollution Degree:  2
  • Protection Class:  1
  • Cooling:  Forced air, temperature controlled fans
  • Temperature Operating:  0~50 °C / 32~122 °F
  • Storage:  -20~70 °C / -4~158 °F
  • Relative humidity:  < 80%, non-condensing
  • Altitude Operating:  < 2000 m (1.242 mi)
• Front Panel
  • Display:  Color Touch Screen Graphics LCD
  • Controls:  Dual Rotary Digital Encoders
  • Output on/off:  Push Button
• Digital Interfaces
  • Internal:  1x USB type B for communication, 1x GPIB (optional)
  • Interface Slot:  1x for retrofittable plug-in modules
• Analog Interfaces
  • Internal:  Built-in, 15 pole D-Sub (female), galvanically isolated
  • Signal range:  0~5 V or 0~10 V (selectable)
  • Inputs:  V, I, P, R, remote control on-off, DC output on-off, resistance mode on-off
  • Outputs:  V, I, alarms, reference voltage, status
  • Accuracy V / I / P / R:  0~10 V: < 0.2%, 0~5 V: < 0.4%
• Dimensions
  • 3U: 19” x 5.25” x 26.4” / 483 x 133 x 670 mm
  • 4U: 19” x 7.0” x 26.4” / 483 x 178 x 670 mm