Primary Clocked Technology: Ensures continuous operation and high efficiency.
Short-Circuit Proof Design: Enhances reliability under demanding conditions.
Modular Parallel Operation: Modules can be connected in parallel for increased power capacity or redundancy.
Integrated Decoupling Diode (Partial Models): Allows for easy integration into existing systems without additional components.
Accessible Connections: Front-accessible connections facilitate easy maintenance and replacements during operation.
Fanless Design: Most models feature a fanless design, reducing noise and maintenance requirements.
User Interfaces: Equipped with LEDs, test sockets, and potential-free changeover contacts for operational monitoring and fault signaling.

Sustainability and Reliability

High-Quality Industrial Design: Built to meet current standards and withstand rigorous industrial environments.
High Test Voltages: Ensures safety and reliability in operation.
Inrush Current Limitation: Protects the system from power surges during startup.
Long Lifespan and Spare Parts Guarantee: Designed for longevity with a 15-year guarantee on spare parts availability.

Options

Battery Operation Functionalities: Includes charging characteristics, temperature control, and symmetry monitoring.
Additional Controllers: For digital displays and integration of additional interfaces.

Technical Data

TO: Natural Cooling, AF: Forced Air Cooling

Test Voltages:

Input-Output: 5.3 kV DC
Input-Body: 2.8 kV DC
Output-Body: 2.8 kV DC

Standards and Compliance

EMC: Compliant with EN 61000-6-2, EN 61000-6-4, and EN 50121-4.
Protection Class: IP20, according to EN 60529.
Safety: Designed per EN 61140 standards.
Environmental Conditions: Tested per EN 60721-3-1, EN 60721-3-2, and EN 60721-3-3.

These rectifier modules offer reliable and versatile DC power solutions tailored for industrial applications, ensuring long-term operational efficiency and ease of integration into existing systems.

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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

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.

The post IGBT Rectifier first appeared on Westek Electronics.

Advanced Thyristor Technology:

6-Pulse Rectifier (12-Pulse Optional): The GR-3811 and GR-3812 models use a 6-pulse thyristor rectifier, with an option to upgrade to a 12-pulse configuration for applications requiring lower harmonic distortion and higher efficiency.
Galvanic Isolation: Ensures complete separation between input and output, providing enhanced safety and protection against electrical noise and interference.

User-Friendly Interface and Monitoring:

GR-3811: Equipped with a color TFT touchscreen panel, offering intuitive operation, easy navigation, and a digital display with non-volatile event ring memory for real-time monitoring and historical data access.
GR-3812: Features an LC display with LED indicators in a mimic diagram, providing clear and straightforward operational feedback.

Reliable Performance and Safety:

Automatic Charging with Three IU Characteristics: Supports continuous, strong, and forming charges according to DIN 41772 standards, ensuring optimal battery health and longevity.
Temperature Monitoring: Two-stage temperature monitoring with warning and shutdown functions to protect the power unit from overheating, ensuring consistent performance and long service life.
Fanless Design: Natural air cooling through convection reduces maintenance needs and minimizes the risk of failure in dust-prone or corrosive environments.

Flexible Integration and Customization:

Parallel Operation: The rectifiers can be connected in parallel for increased capacity or redundancy, ensuring scalability for larger systems.
Remote Signaling and Control: Equipped with 8 remote signals (configurable potential-free contacts) and an RS232 interface for seamless integration with existing monitoring systems.
Custom Options: A variety of customizable electrical and mechanical parameters are available, including specific voltages, frequencies, protection classes, and additional monitoring or protective devices.

Compliance with International Standards:

The GR-3811 and GR-3812 rectifiers comply with a wide range of international standards, ensuring safety, reliability, and environmental sustainability:
Low Voltage Directive: 2014/35/EU, ensuring electrical safety.
EMC Directive: 2014/30/EU, governing electromagnetic compatibility.
RoHS Directive: 2011/65/EU, restricting the use of hazardous substances.

Technical Specifications

Permissible Environmental Conditions:

Storage: Compliant with EN 60721-3-1 (1K21 / 1M11), suitable for temperatures from +5 to +40 °C.
Transport: Built to withstand extreme temperatures during transport, from -45 to +70 °C, compliant with EN 60721-3-2 (2K12 / 2M4).
Operation: Designed for reliable performance in temperatures from +5 to +40 °C, with relative humidity between 5-85% without condensation, following EN 60721-3-3 (3K22 / 3M11).

Customization and Options

Electrical Parameters: Customizable voltage and frequency settings to match specific requirements.
Mechanical Parameters: Options for higher protection classes (e.g., IP21 and above) and custom base plates.
Functional Add-ons: Additional protective devices (MCCB, surge arrester), monitoring systems (fan, earth fault), and communication interfaces (Profibus, Modbus, SNMP).
Temperature-Controlled Battery Charging: Advanced battery management options to optimize charging based on environmental conditions.

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