GE WESDAC D20ME Substation Controller

GE WESDAC D20ME Substation Controller

DESCRIPTION

GE WESDAC D20ME substation controller is a high-performance, reliable industrial automation controller from GE (General Electric), designed for substations and other complex industrial environments. It integrates advanced microprocessor technology and digital signal processing algorithms with powerful data processing and control capabilities, and is able to meet the needs of substations for high precision, high reliability and real-time.

D20 Main Chassis

The D20 main chassis comes in three distinct types tailored to meet the varying size and communication requirements of different automation projects from a few hundred points to over 75,000 SCADA points.

D20ME II CPU Board

The D20ME II is the sixth generation main processor for the D20 platform. This 32-bit main processor module handles data collection and delivery to host computers, runs local automation algorithms and maintains I/O and device data in the system database.

CPU and Memory

• 32-bit microprocessor architecture 

• 2 MB flash application memory 

• 1.5 MB SRAM 

• 512 KB NVRAM 

• 1 MB BootROM 

• TCXO clock, 1.0 ms resolution, accurate to ±2 ppm

Communications

• 7 RS-232/485 serial ports 

• RS-232 maintenance port 

• 2 D.20 Link HDLC ports for communication to D20 I/O modules 

• Wireless Ethernet Ready with PPP/TCP/IP

Self-diagnostics

• Program memory check sums 

• RAM test 

• Configuration verification 

• Interrupt controller verification 

• Serial port test 

• Watchdog and power monitor 

• I/O Module health checks 

• Error logger

Technical specifications

Operating Voltage: Typically 220V, ensuring stable operation of the unit at standard voltages.

Output Frequency: 51kHz, providing a high frequency output to meet the need for fast response.

Processor Model: CPU Model 350, as a controller, I/O system and specialised modules designed to meet the needs of flexible industrial solutions.

Memory: Equipped with 32KB of user memory to ensure sufficient storage space for programmes and data.

Number of I/O points: 4K I/O, supporting the connection of a large number of input and output points to meet the needs of complex control systems.

Number of racks: 8 racks, providing enough expansion space for system upgrade and expansion.

Logic execution speed: 0.22msec/K, ensuring fast and accurate logic operation and control.

Functional features

High-performance processing: adopts high-speed microprocessor and digital signal processing algorithm to achieve fast and accurate control effect.

Multi-channel support: Supports a variety of input and output channels, capable of monitoring and controlling multiple devices or processes, suitable for substations and other complex industrial environments.

Multiple communication interfaces: supports multiple communication protocols and interface standards such as Ethernet, serial port, etc., which is convenient for integration and data exchange with other industrial automation equipment.

Real-time operation: capable of data processing and control in real-time or near real-time to meet the demand for real-time in substations.

Easy to install and operate: Designed with ease of use in mind, it makes installation and operation simple and convenient, reducing maintenance costs.

High reliability: Redundant design and high-quality components are used to ensure stable operation of the equipment even in harsh environments, improving the reliability of the system.

Application Areas

GE WESDAC D20ME substation controller is widely used in substation automation systems in the power industry for monitoring and controlling various devices in the substation, such as transformers, switchgear, protection devices and so on. It can realise the functions of remote monitoring, fault diagnosis, automatic control and protection of the substation, and improve the operation efficiency and safety of the substation.