High Power Regenerative AC & DC Load, 30kVA to 1.1MVA
High Power Regenerative AC & DC Load, 30kVA to 1.1MVA
The ELZ Series is a regenerative electronic load with an optional PHIL interface that can emulate both linear and non-linear AC or DC loads. This unit delivers up to 55kVA in a single cabinet, scalable to 550kVA in parallel and three-phase systems exceeding 1.1MW. The ELZ integrates three high-performance DSPs for superior loading capability, such as circuit emulation.
Why Choose ELZ Series
4 Quadrant AC & DC Load > 90% Energy Efficiency
Dual voltage range and high current availability within a single product
3DSP RTC Controllers for advanced load capabilities; includes Circuit Emulation
Power Hardware in the Loop with <50µs latency for real-time simulation
Key Specifications
- Single, Split, Three-Phase
- 30kVA, 45kVA, or 55kVA per cabinet
- Modular, scalable power up to 550kVA
- High Power Three-Phase Systems up to 1.155kVA
- Full power in AC and DC
- Dual Voltage Range: 5-220Vac L-N / 9-380V L-L and 5-440Vac L-N / 9-760V-LL
- 15Hz-1000Hz; Extended Mode 1 – 10,000Hz
- Regenerative > 90% Efficiency
- Full Galvanic Isolation protects users and units under test
- Precision True-RMS metering
- Advanced Oscilloscope Function
- Sine, Square, Triangle, THD and Arbitrary waveforms
- Programmable Output Impedance (R+L); Resistive -10 to +10 Ohm, Inductive 0 to 2mH
- AC Modes: Constant Current, Constant Power & Apparent Power, Constant Resistance, Constant Voltage, CC+CR, CC / CS Rectifier Mode 1ø & 3ø
- DC Modes: Constant Current, Constant Power, Constant Resistance, Constant Voltage, CR+CC
- Circuit Emulation Mode eliminates the need for additional equipment
- 3 Phase AC input with Active PFC
- 200 programs for transient testing (List, Pulse, Step Modes)
- Special inrush current application transient programming
- Precision Voltage Programming – 0.02% with Continuous Self Calibration (CSC)
- Extensive Analog and Digital I/O for system integration
- RS-232, USB, Modbus, TCP, GPIB, SCPI compatibility; IVI Instrument Drivers
- CE (EMC/Safety) Marked
- Built-In SmartSource Suite Remote Control Platform
Highest Performance AC Load with DC Capability
Perform complete AC and DC power testing with true bidirectional, 4-quadrant operation. This programmable AC/DC electronic load supports full 4-quadrant capability, enabling precise control of real and reactive power while allowing adjustment of power factor, current crest factor, current waveform, and more.
Regenerative AC/DC Electronic Load capability with both AC and DC operating modes pushes the boundaries of your test environment. Simulate linear and non-linear loads (including rectified), inductive and capacitive loads.
- AC Modes: Constant Current, Constant Power & Apparent Power, Constant Resistance, Constant Voltage, CC+CR, CC / CS Rectifier Mode 1ø & 3ø
- DC Modes: Constant Current, Constant Power, Constant Resistance, Constant Voltage, CR+CC
- Additional CE Mode
Simultaneous AC and DC load operation is supported per phase (or channel), with automatic input mode switching to give test engineers maximum flexibility. Configurations include single-phase, split-phase, three-phase, and multi-channel setups, with optional isolated neutrals available for both AC and DC.
- AC, DC configurations
- Simultaneously test AC and DC, on separate phases
- Full galvanic isolation from facility AC input to output and between
phases/channels also protects the user and the UUT.
The ELZ is optimized for real-time Power Hardware-in-the-Loop (HIL) simulation. Its high-speed analog inputs and outputs deliver rapid response for precise control of frequency, voltage, current, and waveform. At the same time, voltage and current feedback signals are captured and returned to the real-time simulation system, ensuring accurate closed-loop operation.
- Amplifier for PHIL applications
- Latency of less than 50µs
- High Speed Analog Inputs
Get access to SmartSource Suite, our proprietary built-in platform that allows full remote control, development, and execution of test sequences in real-time. Intelligently monitor, control, and manage testing using the intuitive embedded web browser interface on any mobile device.
- Access on any web browser in real-time
- Enhanced visualization and reporting tools
- View and control on multiple windows
- Save time and increase productivity
| Model | Rated Power (W/VA) | Input Form | Input Volts (Vac/Vdc) | Amps/Phs (Aac/Adc) | AC Input | Units/Height | Weight (Kg/Lbs) | ||
|---|---|---|---|---|---|---|---|---|---|
| 3300ELZ | 30000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 45Arms/ 30Adc 90Arms / 60Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3450ELZ | 45000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 65Arms/ 40Adc 110Arms / 80Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3550ELZ | 55000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 75Arms/ 50Adc 130Arms / 100Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3900ELZ | 90000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 130Arms/ 80Adc 220Arms / 160Adc | 3Ø | 2 / 60″ | 1034/2280 | ||
| 31100ELZ | 110000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 150Arms/ 100Adc 260Arms / 200Adc | 3Ø | 2 / 60″ | 1034/2280 | ||
| 31650ELZ | 165000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 225Arms/ 150Adc 390Arms / 300Adc | 3Ø | 3 / 60″ | 1551/3420 | ||
| 32200ELZ | 220000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 300Arms/ 200Adc 520Arms / 400Adc | 3Ø | 4 / 60″ | 2068/4560 |
Note: In Split Phase mode, rated power is 30kVA/30kW for 3300GSZ, 33kVA for 3450GSZ & 36.7 kVA for 3550GSZ Models.
- For applications requiring more than 1.1MW+, contact Pacific Power Source for more details.
- Three phase input voltage settings: 380 to 400VAC±10% or 480VAC±10%.
| Title | Document Type |
|---|---|
ELZ Series Regenerative AC & DC Load Datasheet
|
Datasheet |
ELZ Series Regenerative AC & DC Load Manual
|
Manual |
Burn-In Testing Using Regenerative Electronic Loads Application Note
|
App Note |
|
AC Loads for Linear and Non-Linear Circuit Emulation
|
App Note |
|
Regenerative Loads Operating Modes Overview
|
App Note |
SmartSource Suite Brochure
|
Brochure |
Why Choose ELZ Series
4 Quadrant AC & DC Load > 90% Energy Efficiency
Dual voltage range and high current availability within a single product
3DSP RTC Controllers for advanced load capabilities; includes Circuit Emulation
Power Hardware in the Loop with <50µs latency for real-time simulation
Key Specifications
- Single, Split, Three-Phase
- 30kVA, 45kVA, or 55kVA per cabinet
- Modular, scalable power up to 550kVA
- High Power Three-Phase Systems up to 1.155kVA
- Full power in AC and DC
- Dual Voltage Range: 5-220Vac L-N / 9-380V L-L and 5-440Vac L-N / 9-760V-LL
- 15Hz-1000Hz; Extended Mode 1 – 10,000Hz
- Regenerative > 90% Efficiency
- Full Galvanic Isolation protects users and units under test
- Precision True-RMS metering
- Advanced Oscilloscope Function
- Sine, Square, Triangle, THD and Arbitrary waveforms
- Programmable Output Impedance (R+L); Resistive -10 to +10 Ohm, Inductive 0 to 2mH
- AC Modes: Constant Current, Constant Power & Apparent Power, Constant Resistance, Constant Voltage, CC+CR, CC / CS Rectifier Mode 1ø & 3ø
- DC Modes: Constant Current, Constant Power, Constant Resistance, Constant Voltage, CR+CC
- Circuit Emulation Mode eliminates the need for additional equipment
- 3 Phase AC input with Active PFC
- 200 programs for transient testing (List, Pulse, Step Modes)
- Special inrush current application transient programming
- Precision Voltage Programming – 0.02% with Continuous Self Calibration (CSC)
- Extensive Analog and Digital I/O for system integration
- RS-232, USB, Modbus, TCP, GPIB, SCPI compatibility; IVI Instrument Drivers
- CE (EMC/Safety) Marked
- Built-In SmartSource Suite Remote Control Platform
Highest Performance AC Load with DC Capability
Perform complete AC and DC power testing with true bidirectional, 4-quadrant operation. This programmable AC/DC electronic load supports full 4-quadrant capability, enabling precise control of real and reactive power while allowing adjustment of power factor, current crest factor, current waveform, and more.
Regenerative AC/DC Electronic Load capability with both AC and DC operating modes pushes the boundaries of your test environment. Simulate linear and non-linear loads (including rectified), inductive and capacitive loads.
- AC Modes: Constant Current, Constant Power & Apparent Power, Constant Resistance, Constant Voltage, CC+CR, CC / CS Rectifier Mode 1ø & 3ø
- DC Modes: Constant Current, Constant Power, Constant Resistance, Constant Voltage, CR+CC
- Additional CE Mode
Simultaneous AC and DC load operation is supported per phase (or channel), with automatic input mode switching to give test engineers maximum flexibility. Configurations include single-phase, split-phase, three-phase, and multi-channel setups, with optional isolated neutrals available for both AC and DC.
- AC, DC configurations
- Simultaneously test AC and DC, on separate phases
- Full galvanic isolation from facility AC input to output and between
phases/channels also protects the user and the UUT.
The ELZ is optimized for real-time Power Hardware-in-the-Loop (HIL) simulation. Its high-speed analog inputs and outputs deliver rapid response for precise control of frequency, voltage, current, and waveform. At the same time, voltage and current feedback signals are captured and returned to the real-time simulation system, ensuring accurate closed-loop operation.
- Amplifier for PHIL applications
- Latency of less than 50µs
- High Speed Analog Inputs
Get access to SmartSource Suite, our proprietary built-in platform that allows full remote control, development, and execution of test sequences in real-time. Intelligently monitor, control, and manage testing using the intuitive embedded web browser interface on any mobile device.
- Access on any web browser in real-time
- Enhanced visualization and reporting tools
- View and control on multiple windows
- Save time and increase productivity
| Model | Rated Power (W/VA) | Input Form | Input Volts (Vac/Vdc) | Amps/Phs (Aac/Adc) | AC Input | Units/Height | Weight (Kg/Lbs) | ||
|---|---|---|---|---|---|---|---|---|---|
| 3300ELZ | 30000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 45Arms/ 30Adc 90Arms / 60Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3450ELZ | 45000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 65Arms/ 40Adc 110Arms / 80Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3550ELZ | 55000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 75Arms/ 50Adc 130Arms / 100Adc | 3Ø | 1 / 60″ | 517/1140 | ||
| 3900ELZ | 90000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 130Arms/ 80Adc 220Arms / 160Adc | 3Ø | 2 / 60″ | 1034/2280 | ||
| 31100ELZ | 110000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 150Arms/ 100Adc 260Arms / 200Adc | 3Ø | 2 / 60″ | 1034/2280 | ||
| 31650ELZ | 165000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 225Arms/ 150Adc 390Arms / 300Adc | 3Ø | 3 / 60″ | 1551/3420 | ||
| 32200ELZ | 220000 | 1,2,3 Ø | 480 VLN / ±680 Vdc 220VLN / ±340 Vdc | 300Arms/ 200Adc 520Arms / 400Adc | 3Ø | 4 / 60″ | 2068/4560 |
Note: In Split Phase mode, rated power is 30kVA/30kW for 3300GSZ, 33kVA for 3450GSZ & 36.7 kVA for 3550GSZ Models.
- For applications requiring more than 1.1MW+, contact Pacific Power Source for more details.
- Three phase input voltage settings: 380 to 400VAC±10% or 480VAC±10%.
| Title | Document Type |
|---|---|
|
ELZ Series Regenerative AC & DC Load Datasheet
|
Datasheet |
|
ELZ Series Regenerative AC & DC Load Manual
|
Manual |
|
Burn-In Testing Using Regenerative Electronic Loads Application Note
|
App Note |
|
AC Loads for Linear and Non-Linear Circuit Emulation
|
App Note |
|
Regenerative Loads Operating Modes Overview
|
App Note |
|
SmartSource Suite Brochure
|
Brochure |