FAQ

Yes, the RPS series uses high-precision power synthesis technology to simulate various grid conditions, including standard utility power, abnormal voltage fluctuations, and different frequency environments. It complies with international power testing standards such as IEC 61000-4-11 (voltage dips, short interruptions, and voltage variations), IEC 61000-4-13 (harmonics and interharmonics testing), IEC 61000-4-27 (unbalanced voltage testing), and IEC 61000-4-34 (voltage fluctuation testing for high-power equipment), ensuring the reliability and stability required by data centers.

 The RPS series supports multiple communication interfaces, including USB, LAN, RS-232, GPIB, and CAN, enabling easy integration into your testing systems for remote control and monitoring.

Yes, the RPS series is a high-performance power simulation solution that supports AC, DC, and AC+DC output modes. It is widely applicable to renewable energy systems, EV charging stations, and industrial energy storage. With advanced power switching technology and digital control architecture, it offers faster voltage response times, precisely simulating transient load changes for accurate and stable testing. The AC+DC mode allows simultaneous DC bias and AC signal output, suitable for grid imbalance simulation, voltage ripple analysis, and EV charger endurance testing.

The RPS series offers G, S, and L models to meet diverse power testing needs:

1. • G Model (Regenerative Grid Simulator): Features adjustable voltage, frequency, and phase control with single-phase, split-phase, and three-phase outputs. It simulates standard and abnormal grid conditions, suitable for EV charging station grid integration tests, renewable energy system certifications (IEEE 1547, UL 1741, EN 50549), UPS transfer testing, and grid disturbance immunity evaluations.
   • S Model (Programmable AC Source): Provides stable AC/DC output with high dynamic response, supporting AC, DC, and AC+DC modes. It simulates dynamic load changes and transient events, ideal for power conversion systems (e.g., inverters, PFC devices), industrial energy storage systems, and power aging tests.
   • L Model (Regenerative AC/DC Load): Offers Constant Current (CC), Constant Voltage (CV), Constant Power (CP), and Constant Resistance (CR) modes with bidirectional regenerative technology, feeding absorbed energy back to the grid to improve testing efficiency and reduce energy consumption.

The RPS series uses a high-precision Digital Signal Processing (DSP) architecture combined with advanced auto-calibration to guarantee accurate and repeatable test data. Its built-in high-resolution AD/DA converters monitor and compensate output errors in real-time while dynamically adjusting outputs to maintain stable and precise power.

To enhance testing flexibility, the RPS series supports programmable modes including LIST, STEP, PULSE, TRANSIENT, and a custom waveform editing function. It can simulate real power grid disturbances, surge variations, and harmonic effects, making it suitable for rigorous power validation and endurance testing. Additionally, all systems undergo strict verification testing during the design phase and are subject to multi-stage automated testing and precision calibration on the Zhongda Intelligent Production Line, ensuring that every unit leaving the factory meets international testing standards and high-precision requirements.

Yes, the RPS series supports high-power loads, including high-density server systems and various industrial equipment. It offers up to 225 kVA of testing power, flexible phase outputs, and advanced harmonic analysis capabilities to meet different application needs.

Supported load modes include:

1. • Constant Current (CC): Maintains constant current for short-circuit and overcurrent protection testing.
   • Constant Voltage (CV): Keeps output voltage stable, simulating real-world load demands.
   • Constant Power (CP): Dynamically adjusts output to maintain set power levels, suitable for high-power applications.
   • Constant Resistance (CR): Simulates resistive loads to verify power supply performance.
   • Dynamic Load Mode: Simulates transient changes to assess the power system's response and stability.

The RPS series supports SCPI (Standard Commands for Programmable Instruments) and LabVIEW, allowing seamless integration without significant modifications. Standard interfaces like GPIB, LAN, and RS-232 make system upgrades simple.

Using the PowerVUE PC software, users can simplify test setups, data management, and integrate the RPS-5000 into automated test systems (ATS) for real-time monitoring, data analysis, and reporting, improving testing efficiency and reliability.

The RPS series supports the standard SCPI protocol, making it compatible with most testing equipment on the market. By leveraging standard interfaces and the SCPI protocol, it helps users quickly replace and integrate the RPS-5000 into existing test systems (ATS).

Model G, a high-performance regenerative grid simulator, offers key features for renewable energy testing:

• • Bidirectional Current Feedback: Simulates charging and discharging processes for EV chargers and battery energy storage systems (BESS).
  • High-Precision Grid Simulation: Replicates various grid conditions, including standard utility power, wind, and solar systems.
  • Microgrid Integration Testing: Supports microgrid components and evaluates system coordination and performance.
  • Advanced Control Strategy Testing: Validates control strategies like power factor adjustment, frequency, and voltage stability.
  • Transient Event Simulation: Simulates transient grid disturbances to evaluate system stability and safety.

Yes, the RPS series is designed for EV charging station testing, featuring:

1. • Power Factor Measurement: High-precision power factor testing to assess charger efficiency.
   • Harmonic Distortion Analysis: Evaluates harmonic emissions to ensure compliance with IEEE 519 standards.
   • Voltage Regulation: Simulates voltage fluctuations to verify charger stability under varying grid conditions.
   • Transient Response Testing: Assesses system response to rapid load changes.
   • Bidirectional Feedback: Enables energy recovery during charging/discharging processes, improving testing efficiency.

Yes, the RPS series supports EMC compliance testing, covering power line conduction and immunity tests. It complies with standards like IEC 61000-3-11, 61000-3-12, 61000-4-11, IEC 61000-4-13, IEC 61000-4-14, and IEC 61000-4-28, 61000-4-34, ensuring products meet international regulations.

The RPS series can simulate various power conditions for PFC testing, featuring:

1. • Accurate Power Simulation: Adjustable power factor and stable voltage/frequency outputs.
   • High-Precision Measurements: Real-time monitoring of power factor, active/reactive power.
   • Harmonic Distortion Evaluation: Analyzes harmonic emissions under different load conditions.
   • Diverse Testing Modes: Supports CC, CV, and CP modes for dynamic load simulation.

The RPS series, in three-phase mode, can deliver up to 100 Arms of current per phase—an improvement of over 30% compared to previous-generation products on the market. In single-phase mode, its current output can reach up to 300 Arms, meeting the demands of various high-power applications.

Additionally, the RPS series offers flexible phase configuration, supports multiple output modes, and features an optimized cooling design to ensure stable performance and reliability even under high-load conditions. These attributes make the RPS series a powerful solution for power testing and simulation, particularly suited for high-performance industrial equipment and power system testing.

Yes, the RPS series is ideal for testing industrial appliances, lighting power supplies, and transformers. It offers:

1. • Diverse Load Simulation: Simulates motors, lighting systems, and transformers.
   • High-Precision Measurements: Monitors voltage, current, power factor, and harmonic distortion.
   • Stability Testing: Performs long-duration stability tests.
   • Compliance Verification: Ensures products meet international standards.

1. • High Stability Voltage and Frequency Outputs: Reduces risks from poor power quality.
   • AC/DC Output Testing: Supports both AC and DC outputs for versatile testing.
   • Modular DSP Technology: Enhances testing efficiency.
   • High-Frequency Testing Support: Optional support up to 1000 Hz.

Yes, the RPS series supports LIST, STEP, PULSE, TRANSIENT, and Arbitrary Waveform Editing, enabling complex waveform creation for transient response and power quality testing.

1. • Constant Voltage (CV): Stable voltage output.
   • Constant Current (CC): Stable current output.
   • Constant Power (CP): Maintains set power levels.
   • Dynamic Load: Simulates variable loads for real-world conditions.

The RPS series simulates power supply and load conditions for aerospace applications, including flight control systems and navigation equipment. It supports frequencies up to 1000 Hz for 400 Hz or 800 Hz testing.

Yes, it supports parallel operation up to 225 kVA, with real-time current-sharing to ensure balanced power distribution and stable operation.

The RPS series offers up to 350V AC (optional 400V) and 495V DC (optional 565V), suitable for energy storage systems, industrial power supplies, renewable energy inverters, high-voltage transformer testing, and aerospace applications.

It simulates rapid load and voltage changes, supports custom waveform editing, and provides real-time measurement for in-depth transient response analysis.

Yes, it can test solar, wind, and energy storage systems, simulating grid conditions to evaluate inverter performance and energy storage compliance.

Yes, it evaluates voltage disturbances, harmonic distortion, and transient events, with built-in harmonic analysis tools for precise diagnosis.

Yes, it supports harmonic analysis up to the 50th order, helping users assess power quality and ensure compliance with international standards.

1. • Optimized Component Design: Increases cooling efficiency by 20%.
   • Stable Long-Duration Testing: Maintains reliable performance during extended high-power tests.

The RPS series calibration process follows strict technical standards, using built-in calibration parameters and high-precision measurements to ensure output accuracy and stability. It connects to external test equipment (e.g., power analyzers, standard sources) via SCPI protocol, automatically collecting and comparing data to adjust deviations.

Modular Design Advantages:

1. No Recalibration Needed:
   • Pre-calibrated high-precision modules.
   • Faulty modules can be replaced without full system recalibration, minimizing downtime.
   • Matched calibration data ensures consistent accuracy after module replacement.
2. Lower Maintenance Costs:
   • Only the faulty module needs replacement, avoiding full system recalibration and reducing downtime and maintenance costs.

The RPS series’s modular design simplifies maintenance, offering superior serviceability and scalability over traditional grid simulators.

Key Maintenance Advantages:

1. Efficient Fault Handling:
   • Three independent modules allow quick replacement of faulty parts without full disassembly or complex repairs.
   • No recalibration needed after replacement, reducing downtime and interruptions.
2. Lower Maintenance Costs:
   • Only damaged modules require replacement, cutting costs and extending equipment life.
   • On-site repairs need no special tools, reducing operational expenses.
3. Plug-and-Play Calibration:
   • Pre-calibrated modules are ready for immediate use, eliminating full system recalibration.

The RPS series offers a cost-effective, efficient, and flexible maintenance solution, ideal for high-end power testing.

In power testing applications, rack-mount and floor-standing designs offer distinct technical advantages. The choice depends on power requirements, cooling performance, space constraints, and the application environment.

1. Rack-Mount Power Testers: Ideal for medium-capacity applications (9–18 kVA). Compact design suits labs, server rooms, automated test equipment (ATE), and unmanned production lines.

2. Floor-Standing Power Testers: Designed for high-power applications (18 kVA and above).Best suited for industrial manufacturing, R&D testing, and power equipment validation.

Rack-mount and floor-standing power testers each have their advantages, primarily depending on power requirements, space constraints, environmental resilience, and cooling methods. For cabinet integration and high-density applications in limited spaces, rack-mount designs are the best choice. In contrast, for high-power applications, industrial environments, and long-duration testing, floor-standing units offer better performance and reliability.

The RPS series undergoes rigorous internal certification and international standard verification during its design and manufacturing processes, ensuring high standards of safety, reliability, and long-term stability.

1. Strict Internal Certification and Testing Procedures: During R&D and mass production, the RPS series follows a comprehensive quality control system with multi-level validation, including:

• Component Quality Verification: All critical components are carefully selected and comply with strict supply chain standards to ensure long-term reliability.
• De-rating Analysis: Electrical and thermal de-rating analyses are applied to power components to ensure sufficient safety margins under extreme conditions, enhancing product lifespan and stability.
• Electrical and Environmental Stress Testing: Tests include high/low-temperature cycling, humidity testing, EMC compliance verification, and extended high-load burn-in testing to guarantee stable performance across various application environments.

2. Mass Production Certification and Validation
Before mass production, the RPS series must meet stringent quality standards, following Delta's complex production validation processes to ensure consistency and reliability across every batch. This phase includes:

• Function Test: Verifies that all electrical specifications meet design requirements, ensuring stable output and proper response times.
• Highly Accelerated Life Testing (HALT): Simulates extreme operating environments to evaluate aging resistance.
• Reliability and Safety Assessment: Confirms the product’s ability to run stably over the long term, even in complex applications.

3. TÜV Certification and Its Significance
The RPS series has obtained TÜV certification, confirming its compliance with international standards in safety, electromagnetic compatibility (EMC), and overall quality.

• TÜV Certification covers electrical safety, mechanical safety, environmental resilience, and long-term reliability, ensuring the RPS series operates safely and stably in diverse scenarios.
• This certification not only strengthens the product’s competitiveness in global markets but also guarantees data accuracy and equipment safety in demanding testing applications.

With strict internal certification, robust production quality control, and TÜV certification, the RPS series demonstrates exceptional safety, reliability, and long-term stability, making it the ideal choice for high-precision power testing applications.