PCL 45kW Programmable DC Power Supply 30V 1500A to 1500V 30A & 2000V 22.5A

  • 45kW Programmable DC Power Supply
  • Output ratings from 30V 1500A to 1500V 30A & 2000V 22.5A
  • Low ripple, high stability
  • List mode function
  • Auto Run function
  • Interlock loop function
  • No overshoot during startup
  • Soft start by hardware, and adjustable voltage rise time by software
  • Multiple protections: OVP, OTP, ACF and current limit protections
  • Standard interface: RS232 & RS485, support ModBus-RTU commands
  • Options: DC 0-5V, 0-10V or 4mA interface for control and feedback
  • Options: LAN interface
  • Comprehensive customization services

Twintex PCL 45kW series Programmable DC Power Supply, composed of three paralleled 15kW power modules integrated into a standard 12U mobile cabinet, features a compact structure for flexible on-site deployment. Its modular design balances current costs with future scalability; the cabinet supports direct expansion to 60kW (by adding one module) without requiring a cabinet replacement, fully accommodating future power growth needs. Additionally, we offer comprehensive customization services, allowing for the selection of larger cabinets to provide ample space for further future expansion.

The PCL 45kW Programmable DC Power Supply offers a wide output range, delivering up to 1800A at 20V or 22.5A at 2000V. It comes standard with RS232/RS485 communication interfaces and supports real-time recording and export of test data (exportable to Excel format via PC software). Engineered for high reliability, it is ideally suited for high-power static testing scenarios, such as full-load temperature rise tests for electric vehicles and controllers, constant-current/constant-voltage charge-discharge cycle verification for energy storage battery packs, static MPPT efficiency scanning for PV inverters, and long-term withstand voltage/aging tests for high-voltage IGBTs and relays. With its modular redundant design and precise CV/CC modes, it provides a stable, low-ripple high-power static load, meeting the rigorous reliability requirements of both R&D verification and mass production testing.

Below are the specific testing and application scenarios for eight typically used models, from low voltage to high voltage.

20V 1800A 36kW Programmable DC Power Supply PCL20-1800: This model features low voltage and ultra-high current, primarily targeting electrochemical and industrial high-current applications. Typical use cases include:

  • Precision electroplating and electrolysis (e.g., PCB plating, electrolytic copper foil production)
  • Hard anodizing
  • Supercapacitors and power batteries
  • Extreme fast-charging testing
  • Current-carrying temperature rise testing for high-power connectors, relays, and fuses.

30V 1500A 45kW Programmable DC Power Supply PCL30-1500: Also a low-voltage, high-current model, its applications largely overlap with those of the 20V model, with a focus on industrial electrochemistry and low-voltage, high-power equipment. Key application scenarios include:

  • Industrial electroplating and electrolysis (e.g., hardware plating, hydrogen production via water electrolysis)
  • High-power DC-DC converters (testing 12V/48V systems)
  • Performance and aging tests for power tools and low-voltage motors
  • Automated battery charging and lifecycle testing for electronic products

150V 300A 45kW Programmable DC Power Supply PCL150-300: A workhorse for aging and testing medium-voltage, high-power equipment. Core applications include:

  • Production testing of power electronics, particularly long-duration aging tests for EV drive systems, Uninterruptible Power Supplies (UPS), and control systems for large industrial equipment
  • Experimental, performance, and routine testing of electrical and electronic products such as DC motors, inverters, and relays

300V 150A 45kW Programmable DC Power Supply PCL300-150: Higher voltage rating for a broader application range, suitable for medium-to-high voltage electronics and automotive electronics. Primarily used for:

  • Performance testing of motors, controllers, and DC/DC converter modules for new energy vehicles (NEVs)
  • Testing of PV inverters and high-voltage switches

600V 75A 45kW Programmable DC Power Supply PCL600-75: This voltage and current rating aligns closely with the parameters of high-voltage power semiconductors (IGBTs). Key scenarios include:

  • Testing and validation of IGBT modules
  • R&D and production testing for equipment such as motor drives, variable frequency drives (VFDs), UPS systems, and switching power supplies

1000V 45A 45kW Programmable DC Power Supply PCL1000-45: A specialized model designed for 800V high-voltage platforms. Primary applications include:

  • Aging tests for high-voltage PTC heaters in new energy vehicles
  • Experimental, performance, and aging tests for high-voltage NEV components such as motor controllers and inverters

1500V 30A 45kW Programmable DC Power Supply PCL1500-30: This model focuses on the high-voltage energy storage and photovoltaic (PV) sectors. Core applications include:

  • Testing parameters such as MPPT efficiency for 1500V PV inverters
  • Long-distance DC power transmission; simulating high-voltage DC supply scenarios to test relevant converters or equipment

2000V 22.5A 45kW Programmable DC Power Supply PCL2000-22: This model is designed for ultra-high voltage testing and scientific research. Typical applications include:

  • Testing of high-voltage power devices, such as voltage withstand verification for IGBTs and diodes
  • Aging tests for high-voltage capacitors
  • Specialized applications in scientific research, such as power supplies for particle accelerators, vacuum coating, and high-voltage biasing for plasma research.

Product Parameters

PCL 45kW Programmable DC Power Supply 30V 1500A to 1500V 30A & 2000V 22.5A

ModelRated OutputModelRated Output
VAWVAW
PCL20-180020V1800A36kWPCL20-240020V2400A48kW
PCL30-150030V1500A45kWPCL30-200030V2000A60kW
PCL40-112540V1125A45kWPCL40-150040V1500A60kW
PCL50-90050V900A45kWPCL50-120050V1200A60kW
PCL60-75060V750A45kWPCL60-100060V1000A60kW
PCL80-56280V562.5A45kWPCL80-75080V750A60kW
PCL100-400100V450A45kWPCL100-600100V600A60kW
PCL150-300150V300A45kWPCL150-400150V400A60kW
PCL200-225200V225A45kWPCL200-300200V300A60kW
PCL300-150300V150A45kWPCL300-200300V200A60kW
PCL400-112400V112.5A45kWPCL400-150400V150A60kW
PCL500-90500V90A45kWPCL500-120500V120A60kW
PCL600-75600V75A45kWPCL600-100600V100A60kW
PCL800-56800V56.25A45kWPCL800-75800V75A60kW
PCL1000-451000V45A45kWPCL1000-601000V60A60kW
PCL1500-301500V30A45kWPCL1500-401500V40A60kW
PCL2000-222000V22.5A45kWPCL2000-302000V30A60kW
Assembly3 modules in parallel4 modules in parallel
WeightApprox 110kgApprox 140kg
Dimensions600Wx734.6Hx732D mm (including wheels)
AC Input3φ4W (L1, L2, L3, PE), 380V±10% 47~63Hz (at default)
3φ4W (L1, L2, L3, PE), 440V/480V±10% 47~63Hz (at request)

For the purpose of product improvement, specifications are subject to change without prior notice.

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  • Experience excellence with our dedicated support and customer-focused approach.

Frequently Asked Questions

A DC power supply is to supply voltage and current in constant voltage (CV) or constant current (CC) mode within the rated output range. Such working characteristics is called a constant voltage/constant current automatic cross-over type. This permits continuous transition from constant current to constant voltage modes in response to the load change. The intersection of constant voltage and constant current modes is called the crossover point. Below figure shows the relationship between this crossover point and the load.

In CV mode, a regulated output voltage is provided. The output voltage remains constant as the load increases while the output current changes in response to the load changes, up till the present current limit point is reached. At that point, the output current becomes constant and the output voltage drops in proportion to the further increases in load.

Similarly, in CC mode, crossover from the CC to CV mode automatically occurs from a decrease in the load. A regulated output current is provided. The output current remains constant as the load decreases while the output voltage changes in response to the load changes.

A power supply with CV and CC operation mode can be operated in only one mode according to load situation. The power supply is in CV mode when the actual load is over the preset load capacity; and the power supply is in CC mode when the actual load is below the preset load capacity.

When the power supply is connected to a big capacitive load, it always causes increase to the output voltage in a power supply. The output voltage may make fast increase to the Over Voltage Protection point. It may also cause slow decrease when the output voltage is turned down.

To solve this problem, connect a power resistor in parallel to the output terminals of the power supply; at the same time, connect a diode in serial between output terminals and the load.

When an inductive load is connected to the power supply, it will cause a reverse polarity induction electric motive force when the power supply is turned on or off, or when preset the output voltage. The pulse noise caused by an inductive load will also affect the power supply, especially when the pulse noise has the same polarity with the output of power supply.

To avoid effect or damage to the power supply, connect a diode in serial between the output terminals of power supply and the load; at the same time, connect a power resistor and a capacitor in parallel to the load to make a R-C snubbed circuit, which will significantly restraint generation of the noise.

When use the power supply to charge a battery, such as accumulator and ni-mh battery, the recommended protection measures is to connect a diode between the power supply and the battery. When the output electrolytic capacitor of the power supply is charged, connecting a load (battery) may cause sparks. This is normal. After the two of them get to equal voltage, the sparks will disappear.

Even if the peak current of a pulse load, such as motor, bulb, DC-DC or DC-AC converter module, does not exceed the rated current of the power supply, it will also cause voltage drop or instability to the output.

A basic solution is to connect a inductor in serial between the power supply and the load. Or, choose a power supply with higher rated current.

If the pulse circuit has a small pulse width or low peak current, another solution is to connect a capacitor with large capacity. A reference to choose capacity of a capacity is: 1000uF capacity to a 1A current.

When the power supply is connected to a load that will cause reverse polarity current to the power supply output, the output voltage will increase, because the power supply cannot absorb the reverse polarity current from the load.

A solution is to connect a diode in serial between the output terminal and the load; at the same time, connect a discharge resistor in parallel to the load to absorb the reverse polarity current. When the reverse polarity current is a peak surge, connect the large electrolytic capacitor in parallel to the two ends of the load.

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