ITECH IT7900 Series

The IT7900 series is a programmable, four-quadrant regenerative grid simulator. It is also a four-quadrant power amplifier, which can be used to test various types of grid-connected equipment.

• High power density/minimum rack space, 3U up to 15kVA,16Hz~150Hz
• Regenerative grid simulator & full 4-Quadrant AC & DC power sources
• Power Amplifier function for PHiL (Power Hardware in the Loop) applications
• Professional anti-islanding test mode, can set and simulate the RLC (resistive-inductive-capacitive), active and reactive power circuit for anti-islanding detection
• CC/CV/CP modes
• AC, DC, AC+DC or DC+AC output capability
• Comprehensive working modes selectable: single-phase, three-phase, reversed phase and multi-channel
• Programmable Output Impedance, allows simulation of real-world utility grid impedance
• Compliance tests incl LVRT (Low Voltage Ride Through) / phase Jump / frequency variation / harmonic injection
• Supported regulatory testing include IEC61000-4-11/4-13/4-14/4-28 etc
• Wide voltage ranges: 350V L-N and 500V L-N
• Master-slave parallel with current sharing technology, up to 960kVA
• Intuitive touch screen with built-in single/3-phase AC power meter and scope function
• Fast response time and high accuracy 0.1% + 0.2% FS
• Waveforms Library : sine, square, triangle, clipped sine, staircase and user-defined waveforms
• Harmonics and interharmonics waveform synthesizer
• Power line disturbance simulation testing by LIST programming / SWEE / surge & sag functions
• The harmonic measurement function can measure 50th order harmonics of voltage and current
• Output 0-360° start/stop phase angle can be set
• Front panel USB port for data and waveform import and export
• Provides various trigger input/output signals. When amplitude/frequency changes, trigger signals can be generated to synchronously capture the current waveform of DUTs
• Relay control function to break the connection between instrument and DUT
• Frequency lock and phase lock functions, tracking the external signal frequency and phase to achieve 6 phase and 12 phase power output
• Built-in USB/CAN/LAN/Digital IO interface, optional GPIB / Analogue and RS232