PXe-D Series Programmable DC Power Supplies
PXe-D-00-000 Series
PX Electronics PXe-D Series programmable DC power supplies convert an available single-phase or three-phase AC supply into controlled, adjustable DC voltage and current.
The range supports constant-voltage and constant-current operation, allowing engineers to power equipment, apply controlled current or reproduce defined DC operating conditions. Configurations extend from compact lower-power supplies to engineered systems rated up to 480kW, with output voltages up to 1200V DC and high-current outputs available for specialist applications.
The PXe-D-6-5000 is an example high-current configuration. Rated at 30kW, it provides an adjustable output of 0 to 6V DC and 0 to 5000A, with PWM conversion, RS232 Modbus RTU communication and constant-voltage or constant-current control.
Technical Highlights for Programmable DC Power Testing
Adjustable Voltage & Current Control
Set the DC output voltage and current around the required test point, load or process condition, with programmable limits to prevent operation outside the permitted range of the connected equipment.
Constant-Voltage & Constant-Current Operation
CV mode regulates the selected output voltage, while CC mode maintains the programmed current as the connected load changes.
Low-Voltage High-Current & High-Voltage Configurations
Available for high-current DC applications such as shunts, busbars, current sensors, contactors, cables and assemblies, with higher-voltage configurations available up to 1200V DC for industrial systems and specialist power-electronics testing.
PWM Regulation with Local Measurement
Solid-state PWM conversion provides controlled DC output with electronic voltage and current regulation. Front-panel indication provides voltage, current, power and operating-time information, with stored settings available on selected controllers.
Remote Control & Electrical Protection
Optional RS232, RS485, and Modbus communications support PLC, computer, and automated test-system integration, with protection against overvoltage, overcurrent, overtemperature, and short-circuit conditions.
Product Information
PXe-D Series Configurations
PXe-D Series DC power supplies are configured around the available AC input, required DC voltage and current, operating mode, duty cycle and connected load.
Single-phase input is available on selected lower-power units. Higher-power and high-current systems normally use a three-phase input to reduce the current carried by each incoming phase.
Available Configurations
| Parameter | Available Configuration |
|---|---|
| Input Phase | Single-phase on selected lower-power models or three-phase four-wire for higher ratings |
| Input Voltage | Typically 220V single-phase or 380/400V three-phase, subject to model |
| Input Frequency | 50Hz or 60Hz |
| Output Voltage | Application-specific DC output, including standard ranges up to 1200V DC |
| Output Current | Selected according to continuous current, peak demand and duty cycle, with engineered ratings up to 11,000A |
| Power Rating | Compact lower-power supplies through to engineered systems rated up to 480kW |
| Operating Modes | Constant voltage and constant current |
| Control | Front-panel control with optional RS232, RS485 or Modbus communication |
| Construction | Rack-mounted or floor-standing, depending on power, voltage and current rating |
| Cooling | Forced-air cooling, sized for the selected converter rating |
Popular Configurations
The models below show representative PXe-D Series voltage and current combinations. Alternative ratings can be produced following technical review.
| Model | DC Output | Power | Typical Application |
|---|---|---|---|
| PXe-D-30-100 | 30V / 100A | 3kW | Component testing, DC motors and industrial control equipment |
| PXe-D-30-500 | 30V / 500A | 15kW | Current sensors, contactors and high-current assemblies |
| PXe-D-30-1000 | 30V / 1000A | 30kW | Busbar, cable and shunt testing |
| PXe-D-60-250 | 60V / 250A | 15kW | Industrial DC equipment and motor testing |
| PXe-D-100-150 | 100V / 150A | 15kW | Power electronics and industrial controls |
| PXe-D-300-100 | 300V / 100A | 30kW | Industrial DC buses and higher-voltage equipment |
| PXe-D-600-100 | 600V / 100A | 60kW | High-voltage DC systems and power electronics development |
| PXe-D-1200-100 | 1200V / 100A | 120kW | Specialist high-voltage industrial equipment |
| PXe-D-6-5000 | 0 to 6V / 0 to 5000A | 30kW | High-current injection, busbar, shunt and sensor testing |
Dimensions, weight, input requirements and connection arrangements are confirmed at quotation because they depend on the selected voltage, current and power rating.
High-Current Output Considerations
At very high current, resistance in the output circuit can create a significant voltage drop. Cable length, cable cross-section, busbar design, terminal resistance and connection quality must therefore be considered as part of the complete system.
For low-voltage high-current applications, PX will normally review:
- Required voltage at the load
- Continuous and peak current
- Cable or busbar length
- Conductor cross-section
- Permitted voltage drop
- Terminal and connector arrangement
- Duty cycle
- Cooling requirements
- Output isolation and protection
- Remote voltage-sensing requirement
Specifying a PXe-D Series DC Power Supply
The power supply should be selected using the complete DC operating range and the behaviour of the connected load.
Information Required
| Requirement | Information to Provide |
|---|---|
| AC Input | Available voltage, phase arrangement, frequency and maximum supply current |
| DC Output Voltage | Required minimum, nominal and maximum voltage |
| DC Output Current | Continuous current, peak current and required current limit |
| Operating Mode | Constant voltage, constant current or automatic transition between modes |
| Load Type | Motor, heater, current sensor, shunt, busbar, electronic equipment or mixed load |
| Duty Cycle | Continuous operation, timed test, pulsed duty or repeated production cycle |
| Performance | Ripple, line regulation, load regulation, setting accuracy and measurement resolution |
| Control | Manual operation, PLC control, computer control, RS232, RS485 or Modbus |
| Connections | Cable, bolted terminal, busbar, connector and remote-sensing requirements |
| Installation | Rack or floor-standing construction, cooling, cable entry and environmental conditions |
| Documentation | Factory test records, calibration information, witness testing and project documentation |
Available Options
Application-Specific Voltage and Current Ratings
Output voltage and current can be configured around the required operating point and total power.
RS232, RS485 and Modbus Communication
Remote interfaces allow integration with computers, PLCs and automated test systems.
Stored Operating Settings
Selected controllers can store voltage and current settings for repeatable testing. Memory capacity is controller-dependent.
Adjustable Voltage and Current Limits
Maximum voltage and current limits can be set to help protect the connected equipment.
High-Current Busbar Outputs
Bolted busbars and heavy-duty terminals are available for high-current installations.
Remote Voltage Sensing
Remote sensing can be considered where voltage drop in the output cable or busbar needs to be compensated at the load.
Rack-Mount Construction
Selected lower-power systems can be supplied in rack-mounted formats.
Floor-Standing Construction
Higher-power and high-current models are supplied in ventilated floor-standing cabinets.
Cables and Terminations
Output cables, busbars, terminal covers, isolators and customer-specific connection assemblies can be supplied.
Factory Acceptance Testing
Factory testing can include output voltage and current checks, regulation, protection operation and communication verification.
PXe-D Series Technical Specification
The following values represent the general PXe-D Series specification. Model-specific performance is confirmed in the final technical proposal.
| Specification | PXe-D Series |
|---|---|
| Conversion Technology | PWM switching |
| Power Range | Lower-power systems through to 480kW |
| Input Phase | Single-phase or three-phase four-wire, depending on rating |
| Input Voltage | 220V AC or 380/400V AC ±10%, depending on configuration |
| Input Frequency | 50Hz or 60Hz, ±10% |
| Output Voltage | Application-specific; standard ranges include 30V, 60V, 100V, 150V, 300V, 600V, 900V and 1200V DC |
| Output Current | Selected according to output voltage and power rating; high-current engineered configurations available |
| Operating Modes | Constant voltage and constant current |
| Ripple | 1% full scale |
| Load Regulation | ±1% full scale |
| Voltage Setting Range | 10% to 100% rated voltage in constant-voltage mode |
| Current Setting Range | 10% to 100% rated current in constant-current mode |
| Setting Accuracy | Voltage ±1%; current ±1% |
| Measurement Accuracy | Voltage, current and power: 0.5% full scale + 5 digits |
| Voltage Resolution | 0.1V below 1000V; 1V at 1000V and above |
| Current Resolution | Model-dependent according to rated output current |
| Power Resolution | 0.1W |
| Display | Voltage, current, power and time |
| Stored Settings | Voltage and current memories available; quantity depends on the selected controller |
| Current Limit | Adjustable from zero to maximum rated current |
| Voltage Limit | Adjustable from zero to maximum rated voltage |
| Protection | Overvoltage, overcurrent, overtemperature and short-circuit protection |
| Communication Options | RS232, RS485 and Modbus, subject to selected controller |
| Cooling | Forced-air cooling |
| Operating Environment | 0°C to 40°C; 20% to 80% RH, non-condensing |
Yes. PXe-D Series supplies can be configured for high-current operation.
The PXe-D-6-5000 example provides adjustable current up to 5000A at up to 6V DC.
Yes. Adjustable voltage and current are available, with constant-voltage and constant-current operating modes.
The usable adjustment range depends on the selected model.
Potentially, but the charging profile must be reviewed carefully.
Battery chemistry, maximum voltage, charge current, temperature monitoring, isolation and charge termination all need to be defined. The PXe-D Series should not automatically be treated as a complete battery charger.
Yes. Selected models can be supplied with RS232, RS485 or Modbus communication for external control and automated testing.
PX Electronics will require the input supply, required DC voltage and current, load type, operating mode, duty cycle, ripple and regulation requirements, control method, output connections and required test documentation.
Typical applications include shunt testing, current sensor testing, busbar testing, cable testing, contactor testing, current injection and low-voltage high-current equipment validation.
A programmable DC power supply converts an AC input into adjustable, regulated DC voltage and current.
It allows engineers to reproduce defined DC conditions for testing, powering equipment or industrial processes.
In constant-voltage mode, the supply maintains the selected voltage while current changes according to the load.
In constant-current mode, the supply maintains the selected current while voltage changes within the available output range.
Standard series information includes 30V, 60V, 100V, 150V, 300V, 600V, 900V and 1200V DC.
Application-specific voltages can also be considered where the required voltage, current and power are defined.
Protection includes overvoltage, overcurrent, overtemperature and short circuit.
Maximum voltage and current limits can also be configured to restrict the permitted output.
