Energy Recovery AC Electronic Load Model 63800R Series

Chroma 63800R series products are AC electronic loads with energy recovery function, divided into three models according to the power of 9kVA/12kVA/15kVA. This series of products to 3U body height with a maximum of 15kVA pulling power, to achieve high power density design; a single body with single-phase, three-phase pulling mode, can be widely used in various types of AC voltage source products; through the master-slave control, can be realized in parallel combination of more than one single machine, to provide greater pulling power to meet the test requirements.

The 63800R series provides users with a complete energy-saving solution. Through its energy recovery mechanism, the energy consumed by the DUT during the pull test can be efficiently fed back to the power grid through the machine instead of being consumed thermally during the test process, thus achieving the goal of environmental protection and energy saving. Through this, the 63800R series can be applied to various green energy related industry tests in the market, such as ESS for energy storage systems, Hybrid PV Inverter, AC EVSE, and V2L, V2H applications for bi-directional vehicle chargers (BOBC), etc. The 63800R series can be used in the testing of various green energy related industries, such as energy storage systems, hybrid PV Inverter, and V2L and V2H applications of EVSE.

In addition, for uninterruptible power system UPS testing, compared with traditional AC loads are mostly energy-consuming components to power consumption, 63800R series through the energy recovery function, not only no waste heat problems, in the high-power testing can also significantly save electricity costs; at the same time, the Chroma 63800R series can also comply with IEC 62040-3 UPS Efficiency Measurement nonLinear test requirements specification, providing a complete solution for UPS testing. Chroma 63800R series can also comply with IEC 62040-3 UPS Efficiency Measurement Non-Linear Test Requirements, providing a complete solution for UPS testing.

Chroma 63800R series uses advanced full digital control technology, in addition to the basic pull-load settings, it can also provide pull-load/unload angle, pull-load current Slew Rate and other advanced settings, and pull-load can be achieved to achieve a high degree of accuracy of the linear load level. In order to match the rapid change of the voltage source of the DUT, Chroma 63800R series develops a new Stand-By function, which can keep the DUT Load On when it is waiting to be loaded or cut off, and pull the load instantly when the voltage source is activated, which replaces the human intervention in adjusting the setting or protection of the load, and is suitable for the test process of a fully-automated intelligent factory.

In addition to the basic functions of constant current, constant power, and constant impedance, the Chroma 63800R series is also equipped with advanced operation modes such as Rectified and Lead/Lag, which can simulate the characteristics of rectified loads and capacitive and inductive loads. In addition, it can also simulate the characteristics of SCR and TRIAC components through the unique half-circle pull-load function, and simulate the characteristics of loads such as thermostats, dimmable household appliances, and protection switches, etc., to test the output stability of the voltage source.

The 63800R series uses a 5-inch LCD touch screen with an intuitive and easy-to-use UI interface that allows users to quickly familiarize themselves with the operation of the instrument. The remote interfaces include USB, LAN, and optional GPIB or CAN interfaces, which allow for fast digital control through a computer and Chroma SoftPanel software; in addition, Chroma also provides the instrument's control driver, which allows users to use LabVIEW software for control system program integration applications. In addition, Chroma also provides a control driver for the instrument, which allows users to use LabVIEW software for control system program integration.

The 63800R series energy recovery AC electronic loads are equipped with touch-screen operation, providing an intuitive UI for users to quickly perform multiple settings and operations. The advanced functions of AC loads, such as pull/unload angle and pull current slew rate, are hidden in the upper right corner of the More Setting function, making the main setting screen simple and clean. The full-screen mode allows all measured values to be expanded to the full screen, which is suitable for observation after inputting settings and provides users with a clearer picture of the measured parameters.

Chroma 63800R series energy recovery AC electronic loads are equipped with grid-connection and energy recovery functions, and are designed with complete protection measures for the incoming power supply of energy recovery equipment. When the 63800R series detects over-voltage, under-voltage, frequency abnormality, three-phase imbalance, over-current and other abnormalities at the grid-connected AC power, it will instantly pop-up a warning and stop pulling the load, and at the same time, make the power module at the grid-connected end enter into the lockout state in order to maintain the user's safety, and restart the machine after confirming that the state of the grid is normal in order to reconnect to the grid again, and to realize the perfect grid-connected protection mechanism.

The Chroma 63800R series energy recovery AC electronic loads are equipped with comprehensive AC load simulation functions for general loads, rectified loads, and inductive/capacitive loads with different operation modes for load simulation.

general load

The 63800R series offers a full range of Constant Current CC, Constant Power CP, and Constant Resistance CR modes, which can be used to simulate a wide range of AC load characteristics. In Constant Current CC and Constant Power CP modes, the Power Factor (PF) or Peak Factor (CF) of the pull load can be set, where PF is defined by Lead/Lag to define the voltage ahead/behind the current, and PF and CF can be programmed at the same time through the Priority setting. Under the fixed resistance mode, the PF value is constant at 1, which can simulate the linear impedance to quickly respond to the voltage source change of the object to be tested, such as voltage interruption transient pull test.

rectifying load

For rectifier loads or non-linear loads, such as traditional inverters, UPS, rectifier switches, acoustic and optical control devices, and electromechanical devices with variable frequency functions, the Chroma 63800R series provides CC Rectified and CS Rectified modes, which can be used to set up the CF value of the pulling load to create a sharp current according to the requirement of constant current or constant apparent power, and accompanied by a high stability Slew Rate control to accurately simulate various types of non-sinusoidal pulling currents. With the high stability of slew rate control, it can accurately simulate various types of non-sinusoidal pulling currents.

Inductive and capacitive loads

In reality, many power equipment due to the use of passive components and inductive or capacitive, the characteristics of the pull load current will be ahead or behind the voltage, so the Chroma 63800R series can be specific CC Lead / Lag and CS Lead / Lag modes, in the fixed-current or fixed-visible power test conditions, adjust the current and voltage phase difference (Deg) to simulate the characteristics of various types of inductive or capacitive loads. Inductive or Capacitive Load Characterization.

Chroma 63800R series energy recovery AC electronic loads are equipped with semi-circumferential pulling function in CC Rectified mode. Under the condition that voltage and current are sinusoidal, it provides positive half-circle, negative half-circle and half-circle pulling to simulate SCR/TRIAC switching characteristics such as 90 degree Leading Edge, Trailing edge, and so on. Users can pull this special current waveform to simulate thermostat/dimmer household appliances, protection switches, etc., and test the output stability of the voltage source by using SCR/TRIAC components related to the load characteristics of the test object.

The 63800R series energy recovery AC electronic load realizes the new Stand-By function through advanced control algorithms and precise and rapid detection circuits. In case of sudden circuit opening or instantaneous interruption of voltage source, it can quickly switch to standby state by detecting the disappearance of the voltage of the object to be tested to avoid the open circuit of the current source. Without this feature, the switching load will not be able to react to the voltage change in time and generate reverse high voltage, thus interrupting the test process by skipping the voltage protection. In addition, the Chroma 63800R series also supports Load On standby before voltage source startup, and switches to Pull On state as soon as the voltage source is started, realizing fast standby startup testing. Users only need to complete the Load On setting and Load On to interrupt the voltage source during the test process. This feature makes the Chroma 63800R series suitable for AC EVSE dynamic Load On, OCP/OPP Load On, and swipe charging tests, as well as standby power on and standby power switching tests for inverters and uninterruptible power supplies.

The Chroma 63800R series energy recovery AC electronic loads offer a new energy-saving and carbon-efficient solution for AC EVSE in the test field by utilizing the features of high power density and efficient energy recovery. Conventional load cells are not only bulky, but also require a large amount of energy consumption due to the conversion of test energy into heat, and must be equipped with a corresponding cooling system to avoid overheating the environment. The Chroma 63800R series is equipped with an energy recovery function with a maximum efficiency of 89%, which can save 116,946kWh of electricity per year for the production line with one unit using the full-power pulling load as an example. This is equivalent to 45,258kg of carbon emissions, which not only achieves the energy-saving purpose, but also significantly reduces the cost of cooling, and the 3U high body can bring more flexible test configurations compared to the large and bulky load boxes. In addition, the Chroma 63800R series is equipped with complete CC, CP, and CR pull-down modes, which meets AC EVSE's CCID/RCD leakage current requirements, providing a more cost-effective and reliable solution for aging and pull-down characterization tests.

*The Chroma 63800R Specialized Inrush Current Limiter Box can be purchased for AC EVSE and AC EV Charger test applications.
*Referring to the International Energy Information Administration information, 1kWh of power consumes about 0.855 pounds (0.387 kilograms) of carbon emissions.