AC/DC Electronic Loads – Electro-Meters https://www.electro-meters.com/product-category/electronic-loads/ac-dc-electronic-loads/ Technology for all your measurement needs Fri, 14 Mar 2025 17:59:27 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.electro-meters.com/wp-content/uploads/images/electro-meters/cropped-EMlogo_square-32x32.png AC/DC Electronic Loads – Electro-Meters https://www.electro-meters.com/product-category/electronic-loads/ac-dc-electronic-loads/ 32 32 ITECH IT7900E Series – Regenerative Grid Simulator https://www.electro-meters.com/product/itech-it7900e-series-regenerative-grid-simulator/ Thu, 06 Jun 2024 17:27:43 +0000 https://www.electro-meters.com/?post_type=product&p=23678 The IT7900E series is a programmable, four-quadrant grid simulator and power amplifier designed to test various grid-connected equipment, such as PCS, energy storage systems, microgrids, V2X (Vehicle-to-Everything), PHiL, and more. Utilizing advanced SiC technology, a single unit of the IT7900E can perform anti-islanding protection tests through its islanding mode with adjustable RLC settings. The series boasts high power density, delivering 6kVA in a 1U unit and 15kVA in a 3U unit. Through parallel connection, its power capacity can be expanded up to 960kVA.

The IT7900E series offers a variety of operating modes to meet diverse testing requirements, including single-phase, three-phase, reverse-phase, and multi-channel configurations. In reverse mode, the voltage can be extended to 200% of the rated voltage. Its robust arbitrary waveform editing function allows for the simulation of various power grid disturbance waveforms, making it an ideal choice for testing and R&D laboratories.

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]]> Highlighted Features
  • Adopt advanced SiC technology
  • High power density/minimum rack space, 3U up to 21kVA
  • Frequency range: 16Hz~150Hz
  • Regenerative grid simulator & full 4-quadrant AC & DC power sources
  • Power amplifier function for PHiL applications
  • Three working modes: CV, Current Limit, Power Limit
  • Output capability: AC, DC, AC+DC, DC+AC
  • Comprehensive working modes: single-phase, three-phase, reversed phase
  • Programmable output impedance for simulating real-world utility grid impedance
  • Compliance tests including LVRT, Phase Jump, Frequency variation, Harmonic Injection
  • Supported regulatory testing includes IEC61000-4-11, 4-13, 4-14, 4-28

Additional Features

  • Wide voltage ranges: 350/700/1050 VL-N*
  • Master-slave parallel with current sharing technology, up to 1MVA+
  • 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
  • Waveform library: sine wave, square wave, triangle wave, clipped sine waves, trapezoidal wave, self-defined waves
  • Harmonics and interharmonics waveform synthesizer
  • Power line disturbance simulation testing through LIST programming, SWEEP, and Surge & Sag functions
  • Up to 50th harmonic simulation and analysis, with built-in IEC61000-3-2/3-12 and other test regulations*
  • Output start/stop phase angle can be set from 0-360°
  • Front panel USB port for data and waveform import/export
  • Relay CTRL function to cut off the connection between instrument and DUT
  • Built-in USB, CAN, LXI-compliant LAN interface, Digital IO interface; optional GPIB, Analog, RS232 interfaces
  • Support for CANopen, Modbus, LXI, SCPI communication

*Notes:*

  1. Voltage/current harmonic analysis
  2. Please refer to the IT7900E high voltage version

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]]> ITECH IT7900EP Series – High Performance Regenerative Grid Simulator https://www.electro-meters.com/product/itech-it7900ep-series-high-performance-regenerative-grid-simulator/ Thu, 06 Jun 2024 15:45:57 +0000 https://www.electro-meters.com/?post_type=product&p=23673 With the adoption of advanced SiC technology, the IT7900EP series high-performance regenerative grid simulator offers a comprehensive test solution. This versatile device functions not only as a grid simulator and four-quadrant power amplifier but also as a four-quadrant regenerative AC/DC electronic load. Its full four-quadrant operation and regenerative capability enable power feedback to the grid, promoting environmental sustainability and significantly reducing electricity and heat dissipation costs.

Designed with a compact, modular, and efficient structure, the IT7900EP delivers up to 21kVA in a 3U single unit, and its power can be extended to 1MVA through master-slave parallel connection. The colorful touch screen with an intuitive GUI allows users to directly define various waveforms. The simulator supports a wide range of operational modes, accommodating single-phase, three-phase, and reverse-phase testing requirements. This high flexibility makes it suitable for applications in PV, ESS, and EV industries.

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]]> Parameter Features
  • Adopt advanced SiC technology
  • High power density, up to 21 kVA for 3U
  • Voltage can reach 350V L-N
  • Highly efficient power regeneration
  • Master and slave equal flow, parallel machines up to 1MVA
  • Comprehensive working modes selectable: single-phase, three-phase, reversed phase, and multi-channel; voltage extension to 200% of rated voltage in reversed mode
  • Support LIST/SWEEP/Surge&Sag three waveform modes
  • Built-in rich waveform database
  • Harmonic simulation and analysis function up to 50 times, built-in IEC61000-3-2/3-12 compliance
  • Can simulate arbitrary waveform output, support CSV file import waveform
  • Phase angle 0-360° settable
  • Touch screen design, simple UI interface
  • Built-in USB/CAN/LAN/Digital IO interface, optional GPIB/analog & RS232 interface
  • Full protection functions including automatic clearing, POVP, watchdog, etc. Support CANopen, Modbus, LXI, SCPI communication

Source Features

  • Regenerative grid simulator & full 4-quadrant AC & DC power sources
  • Frequency: 16-2400Hz
  • Power amplifier function for PHIL applications
  • Four output modes: AC/DC, AC+DC, DC+AC
  • Programmable output impedance, simulation of real-world impedance
  • Harmonic/inter-harmonic synthesis
  • Compliance tests including LVRT, Phase Jump, Frequency Variation, harmonic injection
  • Supported regulatory testing includes IEC61000-4-11/4-13/4-14/4-28
  • Optional software to complete pre-compliance standards testing for civil avionics/electrical ships according to multinational safety regulations

Load Features

  • Regenerative full 4-quadrant AC & DC load
  • Frequency: 16-500Hz
  • AC mode supports CC/CP/CR/CS/CC+CR/CE multiple operating modes, and CE mode can simulate various circuit topologies such as single-phase rectifier RLC and shunt RLC
  • DC mode supports 9 working modes including CC/CR/CP/CV
  • AC mode supports both rectified and non-rectified modes
  • Adjustable crest factor: 1.414 ~ 5.0
  • Support phase shift function in the range of -180º ~ 180º
  • The unit power factor function allows the current waveform to vary with the voltage waveform, making the power factor as close to 1 as possible
  • Supporting unloading angle control, 0-359° adjustable

*Notes:*

  1. Voltage/current harmonic analysis, voltage harmonic simulation in source mode, current harmonic simulation in load mode, fundamental wave ≤ 60Hz
  2. Stay tuned
  3. In grid simulator and islanding simulation mode, 16-150Hz
  4. After turning on the rectification function, the setting range of the phase shift is restricted by the crest factor

Testing Capabilities

Power Hardware-in-the-Loop (PHiL) for Testing and Verification of Grid-Tied DUT

ITECH modular and scalable IT7900(P) support  built-in power amplifier mode for Power Hardware in the Loop (PHIL) applications providing further testing and simulation capability.

The lately upgraded analog interface card IT-E177 for HIL application bandwidth reaches 2.4kHz; IT7900(P) Power Amplifier mode for PHIL application with low latency at 65μs  , rising/fall high speed up to 2.5V/μs,which helps simulate real-world conditions.

The post ITECH IT7900EP Series – High Performance Regenerative Grid Simulator appeared first on Electro-Meters.

]]> ITECH IT8200 Series – Regenerative AC/DC Electronic Loads https://www.electro-meters.com/product/itech-it8200-series-regenerative-ac-dc-electronic-loads/ Wed, 31 Aug 2022 15:50:48 +0000 https://www.electro-meters.com/?post_type=product&p=21298 IT8200 Series is a regenerative programmable AC/DC electronic load. It is power regenerative, which not only saves electricity and cooling costs for you, but is also good for saving energy and environmental protection. AC load mode supports both rectification and non-rectification, providing CC/CR/CP/CS/CC+CR/CE operating modes. It can simulate multiple circuit topologies under CE mode such as single-phase rectification RLC Circuit and parallel RLC Circuit. IT8200 can be used in the testing of V2G, EVSE, PCS, UPS, inverter, etc. IT8200 Series utilizes a high power density design, and the power can reach 6kVA in a 2U unit and 15kVA in a 3U unit. After parallel connection, the power can be extended to 960kVA at most. Its LCD touch screen with graphical UI interface can directly define different waveforms. Combined with arbitrary waveform editing function and perfect protection function, it is an ideal choice for R&D testing and system construction.

The post ITECH IT8200 Series – Regenerative AC/DC Electronic Loads appeared first on Electro-Meters.

]]> Features
  • High power density, 6kVA in 2U unit and15kV A in 3U unit
  • Measure up to 16 parameters including Vrms/Arms/Freq/CF/PF/UTHD/ITHD/±Vpeak.
  • Master/Slave parallel, power up to 960kVA 1
  • High efficient energy regeneration
  • Voltage – 350 VL-N
  • Comprehensive working modes selectable: single-phase, three-phase, reversed phase. Rated voltage can be extended to 200% under reversed phase
  • Output frequency: 16-500Hz
  • Support NORMAL/LIST/SWEEP/Surge&Sag modes
  • Simulate arbitrary waveform output, support csv. file import
  • Built-in various waveforms
  • Touch screen, simple UI for easy operation
  • Built-in USB/CAN/LAN/Digital IO interface, optional GPIB/Analog&RS232
  • DC mode supports nine working modes, including CC, CR,CP, and CV
  • AC mode supports CC/CP/CR/CS/CC+CR/CE multiple working modes, CE mode can simulate various circuit topologies such as single-phase rectifier RLC and parallel RLC
  • AC mode supports both rectification and non-rectification modes
  • Adjustable crest factor: 1.414 ~ 5.0
  • Supports phase shift, ranging from -90 º to 90.0 º 2
  • The unit power factor1 function allows the current waveform to vary with the voltage waveform and the power factor is as close to 1 as possible
  • In three-phase AC mode, two access modes are supported: Y and Δ
  • Comprehensive harmonics measurement and analysis, up to 50th. Built-in IEC61000-3-2/3-12 pre-compliance test standard 3
  • Support the loading and unloading angle control, the full range of 0-359° can be set
  • Various protection functions such as Protect auto clear (UV&FE auto Clear), POVP, POCP, UVP, Software watchdog
  1. For 1U/2U models, max.16 units can be connected in parallel ; for 3U models, max.64 units can be connected in parallel.
  2. After the rectification function is enabled, the setting range of phase shift is restricted by the peak factor
  3. Voltage/current harmonic analysis, current harmonic simulation, fundamental wave ≤ 60Hz

The post ITECH IT8200 Series – Regenerative AC/DC Electronic Loads appeared first on Electro-Meters.

]]> ITECH IT7900P Series – High Performance Regenerative Grid Simulator https://www.electro-meters.com/product/itech-it7900p-series-high-performance-regenerative-grid-simulator/ Wed, 31 Aug 2022 15:00:36 +0000 https://www.electro-meters.com/?post_type=product&p=21295 The IT7900P series high-performance regenerative grid simulator provides an all-in-one test solution that can be used not only as a grid simulator and four-quadrant power amplifier, but also as a four-quadrant regenerative AC/DC electronic load. The full four-quadrant operation, regenerative ability can feedback power to the grid, meet the needs of environmental protection, but also saves a lot of electricity and heat dissipation costs. Compact, modular and efficient structure design allows the IT7900P up to 15kVA in 3U single unit, and its power can be extended to 960kVA after master-slave parallel connection. Colorful touch screen with intuitive GUI allows IT7900P to directly define different waveforms. The rich operation modes can meet the test requirement of single-phase, three-phase, inverse-phase and multi-channel. It provides high flexibility for testing and can be widely used in many fields such as PV, ESS and EV.

The post ITECH IT7900P Series – High Performance Regenerative Grid Simulator appeared first on Electro-Meters.

]]> Parameter Features
  • High power density, up to 6 kVA for 2U and 15 kVA for 3U
  • Voltage can reach 350V L-N
  • Master and slave equal flow, parallel machines up to 960kVA 1
  • Highly efficient energy return
  • Comprehensive working modes selectable: single-phase, three-phase, reversed phase and multi-channel, Voltage extension to 200% of rated voltage in inverted mode
  • Support LIST/SWEEP/Surge&Sag three waveform modes
  • Harmonic simulation and analysis function up to 50 times 2
  • Built-in rich waveform database
  • Can simulate arbitrary waveform output, support CSV file import waveform
  • Phase angle 0~359°settable
  • Touch screen design, simple UI interface
  • Built-in USB/CAN/LXI compliant LAN /Digital IO interface, optional GPIB/analog & RS232 interface
  • A variety of protection functions, including automatic clearing protection, transient overvoltage protection POVP
  • Software watchdogs, etc.

Source Features

  • Regenerative grid simulator & full 4-Quadrant AC&DC power sources
  • Output frequency: 16-1400Hz
  • Power Amplifier function for PHiL applications
  • Professional islanding test mode, support R, L, C and active, reactive power settings
  • Four output modes of AC/DC/AC+DC/DC+AC can be realized
  • Multi-channel function, single unit can test 1-3 DUTs at the same time 3
  • Programmable output impedance, simulation of real-world impedance
  • Harmonic/inter harmonic synthesis
  • Frequency lock and phase lock function to achieve 6 phase& 12 phase power output
  • Compliance tests incl. LVRT (Low Voltage Ride Through)/HVRT (High Voltage Ride Through)/Phase Jump/Frequency variation/harmonic injection
  • Supported regulatory testing include IEC61000-4-11/4-13/4-14/4-28 etc.
  • Provide rich trigger configuration, synchronous capture of the voltage waveform of the object to be measured, to achieve data acquisition and simulation functions

Load Features

  • Regenerative full 4-Quadrant AC&DC load
  • Output frequency: 16-500Hz
  • AC mode supports CC/CP/CR/CS/CC+CR/CE multiple operating modes, and CE mode can simulate a variety of circuit topologies such as single-phase rectifier RLC and shunt RLC.
  • DC mode supports 9 working 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 in the range of -180º~180.0º 4
  • When the three-phase AC, support Y and Δ two kinds of access, Y type connection when the support C-phase phase loss function
  • Support with load-on
  • Support positive or negative half-cycle pull load
  • The unit power factor1 function allows the current waveform to vary with the voltage waveform and the power factor is as close to 1 as possible
  1. 3U model only
  2. Voltage/current harmonic analysis, voltage harmonic simulation in source mode, current harmonic simulation in load mode
  3. Multi-channel function is not available for single-phase models
  4. When rectification function is turned on, the setting range of phase shift is bounded by the peak factor

Testing Capabilities

Power Hardware-in-the-Loop (PHiL) for Testing and Verification of Grid-Tied DUT

ITECH modular and scalable IT7900(P) support  built-in power amplifier mode for Power Hardware in the Loop (PHIL) applications providing further testing and simulation capability.

The lately upgraded analog interface card IT-E177 for HIL application bandwidth reaches 2.4kHz; IT7900(P) Power Amplifier mode for PHIL application with low latency at 65μs  , rising/fall high speed up to 2.5V/μs,which helps simulate real-world conditions.

The post ITECH IT7900P Series – High Performance Regenerative Grid Simulator appeared first on Electro-Meters.

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