Adopting advanced SiC technology，ITECH IT7800E 3U high series of programmable AC/DC power supply, with power up
to 21kVA, voltage ranges up to 350V L-N. Users are able to increase output power up to more than 1MVA by configuring
master-slave parallel. With intuitive LCD touch panel interface, users can be quickly familiar with the unit operation.
IT7800E series is built-in power meter and arbitrary waveform generator, which is able to simulate harmonics and other
arbitrary waveform output. Users can choose single phase, three-phase and reverse phase output modes, with programmable
output and complete measurements. ITECH IT7800E series is designed for new energy, power electronics,
research institutes etc.
Model Options
Features
- High power density, 3U up to 21kVA
- Master-slave parallel with current sharing technology, up to 1MVA, multiple units in parallel work as one
- Voltage specification: 350/700/1050 VL-N
- Comprehensive harmonics measurement and analysis, up to 50th.Built-in IEC61000-3-2/3-12 and other test regulations
- Output frequency: 16-2400Hz, programmable slew rate setting for changing voltage and frequency
- Built-in single/3-phase AC power meter
- Multi-channel function, single unit can connect/test up to 3 DUTs
- 4 output modes: AC/DC/AC+DC/DC+AC
- Choose single phase, three-phase, reverse phase output mode, to simulate 3-phase imbalance, 3-phase
- Harmonics imbalance, split phase test, reverse phase sequence tests etc.
- Built-in USB/CAN/LAN/Digital IO interface, optional GPIB / Analog & RS23
- Comprehensive harmonics measurement and analysis, up to 50th
- Harmonics, inter-harmonics waveform synthesizer, according to IEC 61000-4-13
- Programmable output impedance, according to IEC 61000-3-3
- Intuitive touch screen interface
- Simulate arbitrary waveform output, support csv. file import
- Built-in various waveforms
- List mode simulates the power supply reproduction function to realize the simulation function of instantaneous power interruption
- Provides various trigger input/output signals. When amplitude/frequency change, trigger signals can be generated to synchronously capture the current waveform of DUTs
- Output 0-360 ° start/stop phase angle can be set
- Surge/Sag function
- Relay CTRL function, to cut off the connection between instrument and DUT
- With professional software, set up programs comply with multinational security regulations and test conditions, to complete civil aviation electronics and IEC related standards testing
3U/21kVA high power density
With only 3U size, ITECH IT7800E can reach both 21kVA for power and 350V L-N for voltage. Compared with conven tional AC source, it saves a lot of space for users.
Master/Slave parallel
IT7800E series programmable AC power source can provide more power by using the master/slave parallel output function, with 64 units in paralleled, to achieve total output power max. 1MVA. IT7800E ac power supply comes with synchronous On/Off input and output signals, which ensures the synchronization of paralleling and ensures synchronous current sharing of multiple modules. After paralleling, not only all functions are retained, but there is no loss of accuracy. Make the construction of the power system faster, more flexible, and more economical, whether it is a stand-alone test or ATE system, it can be easily reached
Application: Electrical performance test of industrial frequency converter
·Background description: Inverter is a converter that converts fixed voltage and fixed frequency AC current into adjustable voltage and frequency alternating current, to achieve the purpose of speed regulation. It is widely used in fans, water pumps, AC motors and large-scale driving equipment. The range is from several hundred watts to several hundred kilowatts. The inverter test includes input electrical parameters, output electrical parameters, protection functions and conversion efficiency. ·Solution: IT7800E can meet the test of high-power inverters up to 1MVA, and can simulate input three-phase imbalance, input voltage sag and other disturbance waveforms to verify the input stability of the inverter.
Intuitive touch panel design
The IT7800E series is equipped with a brand-new touch screen
design, a simple and intuitive GUI interface, and the keyboard
knob design allows users to perform tests directly and quickly.
Users can choose different interface display styles, customize the
parameter types and display positions of the page, and the
user-friendly settings can meet various measurement needs in the
test.
The screen can display real-time voltage and current curves, up
to 6 waveforms, users can perform instantaneous analy sis
without an oscilloscope, and save them.
Build-In IEC Testing Standard
According to relevant industry standards, the IT7800E series has built-in standard regulatory tests such as IEC 61000-4-11/4-13/4-14/4-28, IEC61000-3-2/3-12. Users can directly call up the compliance of test regulations, and can also define items according to regulatory requirements to expand the test content of the object under test.
Output frequency up to 2.4kHz
The output frequency of IT7800E series is adjustable between 16-2400Hz, allowing users to set the voltage or frequency output variation rate by themselves, so that the voltage or frequency gradually reaches the set value in a regular manner. Therefore, it can verify the operating range of the product more accurately, and can also reduce the surge current when the DUT is turned on.
AC、DC、AC+DC、DC+AC
The IT7800E series programmable AC power source has four output modes: AC, DC, AC+DC, DC+AC. It not only provides pure AC/DC output, but also can use AC+DC and DC+AC output modes to realize "AC output plus DC bias" And "DC output waveform with ripple", which cover a wider range of applications.
Single phase, three phase, reverse phase
The IT7800E series ac power supply provides multiple output modes such as single-phase, three-phase and reverse phase, which can be selected by the user through the panel menu. By programming ,it can simulate three-phase unbalance, three-phase harmonic unbalance, lack of phase test, phase sequence reverse connection and other tests, which are flexible and cover more applications. At the same time, IT7800's reverse mode can also provide a high-voltage test solution. Its voltage can be increased to twice and the power remains 2/3. For example, if it is set to 350V, the actual output voltage can reach 700V after the reverse mode is selected.
Harmonic analysis and simulation
The harmonic analysis function of IT7800E series includes voltage harmonic measurement and current harmonic measurement. In the harmonic mode, the voltage and current harmonic distortion factor (THD) and the phase difference of the harmonic to the fundamental wave can be tested. In addition, it can measure multiple harmonics, and the results are displayed in a list,histogram or vector diagram, making the test results easy to be seen.
