Power levels can increase up to kW when multiple units are paralleled. These high power loads are designed for testing a wide range of EV products including DC charging stations, car battery discharge, on board charger power components, and other power electronics components. With its high power capabilities, parallel control and dynamic synchronization functions make this load ideal for automotive batteries, fuel cells and more. In addition, a set data storage function has been built-in for recall of the stored settings at any time. When used in automated testing, the save and recall functions can save a great deal of time.
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The ultra-high density power 6kW 4U not only saves room, its super high voltage 0. In addition, the entire series can either be operated by hand or controlled remotely. These electronic loads also have synchronous loading capabilities to simulate actual loading status. The maximum current of a single unit is A and up to kW when paralleled. In addition, the A provides 4 sets of user defined hot keys that enable the user to enter operation modes quickly.
Iconic Function Selections Iconic function selections make it easier for users to control and operate the A series. Basic and advanced functions are iconized, so that users can select from the functions either from the rotary knob or using arrow keys.
The abbreviations are displayed in the icons, and full descriptions are displayed on the VFD display to allow users to easily operate the load without referring to an operation manual for every step. This design allows for convenient operation when the unit is below direct line of sight, making it easy to read and manipulate the controls.
Applications For Basic Load Functions The A series electronic loads operate in constant voltage, current, resistance, power and impedance modes to satisfy a wide range of test requirements. For battery chargers or charging stations, CV mode can change their output voltage to ensure the precision of the charging current. When the UUT is a battery, the electronic load can change discharge rates to simulate the device load behavior. Many battery discharge applications and power consumption profiles can be simulated for analysis, making CP mode the best choice for simulating electronic devices.
Using several loads in parallel to emulate a single load dramatically simplifies operation. All models of the A series can be integrated into a 41U standard rack to save space. The sine wave loading must be greater than or equal to zero ampere. Dynamic Load Modern electronic devices operate at very high speeds and demand rapid transient response characteristics. To address these applications, the A series offers high speed, programmable dynamic loading and sweep simulation for testing.
When the load current changes continuously, the internal monitoring mechanism and line circuit can minimize the current waveform distortion. Dynamic Frequency Sweep Control The A also offers a unique dynamic frequency sweep as shown on the right with variable frequencies up to 50kHz. This capability is ideal for determining worst case voltage peaks.
The dynamic loading mode can simulate different loading conditions for most test requirements. Dedicated remote load sensors and control circuits guarantee minimum waveform distortion during dynamic loading. The A enables the user to set current and power orders to test overcurrent and overpower protections, also to judge the test result as Pass or Fail on electronic load.
The maximum power Pmax during testing can be captured and showed on the display without using an oscilloscope to verify the correctness of designed overcurrent and overpower. It can save a lot of testing time for the user.
To reconstruct the actual current waveforms, the user can simply upload the captured waveform data into any load via a Chroma softpanel. Each load is capable of storing up to 10 sets of waveforms with each comprising up to 1. In addition, the A series also provides voltage peak measurement during actual loading conditions. Avoiding the need for using an oscilloscope to capture the voltage peak, saving time and costs. In addition it can measure the battery discharge power WH, AH and total discharge time.
For example, when Load ON is pressed, the A internal clock will start counting until the battery voltage drops to its cut off voltage or Load OFF is pressed. The battery discharge tests can also apply to super capacitors for discharge time testing. Programmable Load Timing The A series electronic load has programmable timings built in for various load condition simulations. The following lists applications for common programmed timings. Battery discharge NPC, electric car, electric locomotive, etc.
For single channel output UUT. ATX12V power supply mixed load modulation. For multi channel output UUT. Printer power supply for peak power cycle testing. For three channel output UUT. Digitizing Function The A series offers a digitizing function convenient for the recording of transients in both voltage and current waveforms.
It is suitable for lithium ion battery charger testing to get a complete V-I charging curve. Moreover, the auto mode can avoid damaging the UUT when the protection circuit is damaged.
Remote Softpanel Operation The A series loads can be operated either from the front panel controls or from an available softpanel. This user friendly software includes all the functions of the A series loads and is easy to understand and operate.
High Power DC Electronic Loads – 63200A
Battery discharge timer Description The Chroma Electronic Loads series are designed to test DC Power Supplies, power electronic devices, automative batteries, and components. Application Specific Load Simulation Chroma series electronic loads provide constant current, constant resistance, constant voltage, and constant power modes. The CC and CR mode load simulations are useful for testing whether the output voltage of the UUT remains stable or regulated under different load conditions. For battery chargers, CV mode helps to change the output voltage of a charger and therefore can test if the battery charger has the correct charging current corresponding to its own output — or more precisely, the battery voltage. If the UUT is a battery, the electronic load is able to simulate the behavior of the device that uses the battery. For many battery discharge applications, power consumption patterns need to analyzed.
Chroma 63200E Series
High Power DC Electronic Load – 63200