Adopting advanced SiC technologyITECH IT7800 1U high series of programmable AC/DC power supply, with power up to 6kVA,
and 3U up to 15KVA. Users are able to increase output power up to 960kVA by configuring master-slave parallel. With intuitive LCD
touch panel interface, users can be quickly familiar with the unit operation.
IT7800 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, reverse phase, and multi-channel totally 4 output modes, with
programmable output, and complete measurements, ITECH IT7800 series is designed for new energy, power electronics, research
institutes etc.
Model Options
Features
- High power density, 3U up to 15kVA, 1U/2U up to 6KVA
- Master-slave parallel with current sharing technology, up to 960kVA, 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
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: IT7800 can meet the test of high-power inverters up to 960kVA, and can simulate input three-phase imbalance, input voltage sag and other
disturbance waveforms to verify the input stability of the inverter.
3U/15kVA high power density
With only 3U size, ITECH IT7800 programmable AC power source can reach both 15kVA for power and 350V L-N/ 500V L-N for voltage. Compared with conventional AC source, it saves a lot of space for users.
Master/Slave parallel
IT7800 series can provide more power by using the master/slave parallel output function, with 64 units in paralleled, to achieve total output power max. 960kVA. IT7800 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.
Intuitive touch panel design
The IT7800 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 analysis
without an oscilloscope, and save them.
Constant Current source mode
The IT7800 series has a current source mode. It can operate in various modes such as single-phase, reverse phase, AC and AC+DC. Its maximum voltage can reach 700V, which can meet various high voltage and high current applications. Meanwhile, the Normal and LIST functions can cope with various types of conventional and dynamic testing requirements. The rich waveform editing and customization functions can also help you simulate complex current waveforms. Current source mode can provide stable current output so that you can simulate various loads, such as laser drivers, LEDs, motors, etc. It can quickly do frequency sweep, charge/discharge, AC impedance and other related tests on various types of batteries. While improving test efficiency and accuracy, the IT7800 also optimizes the system design while ensuring safety.
Multi-channel function
The multi-channel function of the IT7800 series allows users to test 3 independent DUT at the same time without adding additional hardware configuration. In the traditional solution, 3 tests for the DUT, the user needs to configure 3 AC power supplies; and one IT7800 device can meet multi-channel testing requirements. For example, IT7815-350-90 rated power is 15kVA, can provide single-phase/three-phase 15kVA DUT test, can also meet up to 3* single-phase DUT test, one machine with multiple functions, fully improves the equipment utilization.
Build-In IEC Testing Standards
According to relevant industry standards, the IT7800 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.
Optional Aviation Testing Standards
Optional APS4000 aviation and ship regulations software can be used with ITECH IT7800/IT7900P high performance programmable AC/DC power supply to provide 5kVA-960kVA and 16Hz~2400Hz power supply output for electric equipment. The software has built-in mainstream military and commercial aircraft power supply characteristics standards, such as MIL-STD-704, DO160, A350, A380, GJB181B, HB20326 and MIL1399, etc.,
Output Frequency up to 2.4kHz
The output frequency of IT7800 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 IT7800 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, Split Phase
The IT7800 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 IT7800 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.
