Key Features and Benefits
Advanced IGBT Technology:
Bidirectional Operation: Enables both rectification and inversion, allowing for regenerative feedback and efficient energy management.
PWM Control: Utilizes Pulse Width Modulation (PWM) for precise voltage and current regulation, enhancing overall system stability and performance.
Galvanic Isolation: Provides complete separation between input and output, ensuring safety and minimizing electrical noise.
High Efficiency and Low Harmonic Distortion:
Low THDi (< 6%): Minimizes harmonic interference, ensuring cleaner power quality and reducing stress on upstream electrical systems. High Power Factor (>0.99): Ensures minimal reactive power consumption, enhancing energy efficiency and reducing operational costs.
Overall Efficiency (> 94% at Rated Load): Delivers superior energy conversion efficiency, optimizing power usage and minimizing losses.
User-Friendly Interface and Monitoring:
Color TFT Touchscreen Display: Offers an intuitive and interactive user interface for easy navigation, real-time monitoring, and system diagnostics.
Event Ring Memory (Non-Volatile): Stores event logs and historical data, facilitating maintenance and troubleshooting.
Microprocessor-Controlled Monitoring: Ensures continuous system oversight, enhancing reliability and operational safety.
Robust Performance and Reliability:
Low Residual Ripple (< 0.5%): Ensures stable DC output, protecting sensitive equipment and enhancing overall system performance.
Two-Stage Temperature Monitoring: Incorporates warning and shutdown mechanisms to prevent overheating and ensure long-term reliability.
High MTBF Values: Designed for extended operational life with minimal downtime, ensuring consistent performance in demanding environments.
Flexible Integration and Customization:
Parallel Connection Capability: Allows multiple rectifiers to be connected in parallel, providing scalability and redundancy for larger systems.
Programmable Battery Test: Facilitates comprehensive battery testing with full rated power through grid feedback, ensuring optimal battery health.
Configurable Remote Signals: Includes 8 potential-free contacts that can be customized for various control and monitoring functions.
RS232 Interface: Enables seamless communication with external monitoring and control systems.
Compliance and Standards:
Low Voltage Directive (2014/35/EU): Ensures electrical safety and compliance with European standards.
EMC Directive (2014/30/EU): Guarantees electromagnetic compatibility, minimizing interference with other devices.
RoHS Directive (2011/65/EU): Restricts the use of hazardous substances, promoting environmental sustainability.
EMC Standards Compliance:
EN 61439-1
EN 61439-2
EN IEC 62040-2
Options and Customizations
Temperature-Controlled Charging Voltage: Adjusts charging parameters based on environmental conditions.
Earth Fault Monitoring: Enhances safety by detecting and responding to ground faults.
Communication Interfaces: Supports Profibus, Modbus, SNMP, and other protocols for seamless integration.
Increased Protection Class: Offers higher protection ratings (e.g., IP21) for enhanced environmental resistance.
Additional Options: Customized electrical and mechanical parameters, protective devices (MCCB, surge arresters), and monitoring systems available upon request.
Technical Specifications
| Parameter | Type GR-3864 |
| Rated Power | Up to 500 kW |
| Rectifier Version | IGBT, PWM, galvanically isolated (λ > 0.98) |
| Input Voltage | 3/N/PE AC 400/230 V ±10% |
| Input Frequency | 50 (60) Hz ±5% |
| Output Voltage | Up to 1000 V |
| Output Current | Up to 1250 A |
| Voltage Tolerance | Static: ±1% |
| Dynamic: < 5% at 100% load change | |
| Settling Time | < 2 ms |
| EMC Standards | EN 61439-1 |
| EN 61439-2 | |
| EN IEC 62040-2 | |
| Noise Level | Approx. 50 – 70 dB(A) |
| Cooling Type | “AF” Enhanced Cooling |
| Overall Efficiency | Typically > 94% at rated load |
| Protection Class | IP 20 (floor IP00) according to EN 60529 |
| Permissible Installation Height | 1000 m above sea level |
| Minimum Air Pressure | 870 hPa |
| Painting | RAL 7035, full tone textured paint |
| Monitoring (Configurable): | Undervoltage AC input with shutdown |
| Over- and undervoltage output | |
| Current limit | |
| Temperature monitoring | |
| Display / Operation: | TFT touchscreen display |
| Intuitive menu navigation | |
| Remote Signals: | Configurable potential-free contacts (8 signals) |
| On (switch-on enable controller) | |
| Operation / Malfunction | |
| Emergency stop switch |
Monitoring and Control
Display and Control Unit:
TFT Touchscreen Display: Provides an intuitive interface for easy navigation and real-time system monitoring.
Intuitive Menu Navigation: Simplifies operation and configuration, reducing the learning curve for operators.
Remote Signaling:
Configurable Potential-Free Contacts: 8 signals with 2 potential-free changeover contacts per signal, enabling versatile remote monitoring and control.
Operation Signals: Indicate system status such as switch-on enable, operation/malfunction, and emergency stop.
The Type GR-3864 IGBT Rectifier is a versatile and highly efficient solution for modern industrial power systems, offering advanced features, robust performance, and extensive customization options to meet diverse application requirements.