IT8200E Series Feedback AC/DC Electronic Load

♦ Silicon Carbide (SiC) technology adoption
♦ High power density, up to 21kVA in 3U
Master-slave equalization, parallel up to 1MVA+.
♦ Efficient energy return
Voltage up to 350 VL-N
♦ Support single-phase/three-phase/inverted-phase, inverted-phase mode can be extended to 200% rated voltage
♦ Frequency: 16-500Hz
Support NORMAL/LIST/SWEEP, any one of these modes can be superimposed with Surge&Sag function.
Built-in rich waveform database
♦ Touch screen design, simple UI interface
Built-in USB/CAN/LAN/Digital IO interface, optional GPIB/Analog & RS232 interface.
♦ AC mode supports CC/CP/CR/CS/CC+CR/CE operating modes ♦ CE mode can simulate 14 circuit topologies such as single-phase rectifier RLC and parallel RLC ♦ DC mode supports 9 operating modes such as CC/CR/CP/CV.
AC mode supports both rectified and non-rectified modes
Adjustable crest factor: 1.414 ~ 5.0
Support phase shift function, the range is -90 º~90 º *1
The unit power factor 1 function allows the current waveform to vary with the voltage waveform and the power factor to be as close to 1 as possible.
♦ Support Y and Δ access in three-phase AC mode
♦ Up to 50th harmonic simulation and analysis capabilities with built-in IEC61000-3-2/3-12 regulatory testing *1
Support pumping and unloading angle control, the whole range of 0-359° can be set.
Multiple protection functions, including auto-clear protection, instantaneous over-voltage protection POVP, instantaneous over-current protection POCP, under-voltage protection UVP, software watchdog, etc.
Support CANopen, Modbus, LXI, SCPI and other communication protocols.
*1 Setting range of phase shift is constrained by peak factor when rectification is turned on
*2 Voltage/current harmonic analysis, current harmonic simulation, fundamental ≤ 60 Hz

Feedback AC/DC loads

As a new feed-back AC electronic load, the IT8200E series has a feed-back efficiency of up to 88%. Whether in AC mode or DC mode, the energy generated by the object to be tested can be directly utilized in the plant after high recovery, rather than consumed in the form of heat, providing users with a "green energy-saving This provides users with a "green and energy-saving" solution.

 

oscilloscope function

The IT8200E series has a built-in digital oscilloscope function to acquire time-domain signals of voltage and current, phase relationships and perform waveform triggering. The oscilloscope sampling rate is up to 10us, and up to 6 oscilloscope curves can be displayed at the same time for instantaneous analysis.

At the same time provides data recording function, can be observed for a long time and the output state, the current waveform data captured recorded to the external storage device for secondary analysis. Without the need for data acquisition instruments and oscilloscopes, it can meet a variety of measurement needs in the test, fully taking into account the different measurement needs of engineers.

Single-phase, three-phase, and reverse-phase operation modes

The IT8200E series has very flexible operation modes, single-phase, three-phase and inverted mode can be selected through the panel menu. 350V equipment in inverted mode, the user can get up to 700V single-phase voltage, the power remains 2/3 of the original In three-phase mode, the user can choose to realize the Y-type and Δ-type connection through the panel of the machine, and the Y-type connection supports the C-phase phase loss function. Function. Free and flexible matching to meet diversified testing needs.

Multiple modes of operation

The IT8200E series can turn on the Rectified rectification function in AC mode, so that the load operates in the first and third quadrants, and the voltage and current are always in the same direction. At this time, users can select the waveform integrity, including full wave, positive half wave, and negative half wave.

Crest factor CF 1.414-5.0

The crest factor indicates the extreme peaks of the waveform. For applications that require a pure sine wave, it is desired that the CF of the load-side current waveform be 1.414 or as close as possible. However, in practice, the peak shape of the load current waveform may become very sharp, and its CF is often greater than 1.414, at which time the starting point of the sine wave is shifted positively by a few degrees from 0 degrees, so the user needs to correct the waveform. Therefore, users need to correct the waveform. IT8200E's crest factor (CF) value can be adjusted from 1.414 to 5.0, and also allows users to set the phase shift angle from -90 º ~ 90 º to correct the resultant amplitude, so that the RMS value remains unchanged. This allows more accurate simulation of field test conditions to ensure the reliability of the unit under test (UUT).