ABB RXIDK 2H 1MRK000838-HA Time-overcurrent relays

ABB RXIDK 2H 1MRK000838-HA Time-overcurrent relays

Device Overview

ABB RXIDK 2H 1MRK000838-HA is a high performance pressure transmitter widely used in industrial automation and control systems. With dual-channel analogue inputs, flexible PWM modulation, built-in PID regulator and powerful network functions, it provides an efficient and stable solution for industrial automation.

Main Functions

Dual-channel analogue inputs: Each channel can be configured independently, with one channel supporting positioner Q control (AO) and the other supporting position monitoring (A). This configuration ensures that the actuator can accurately enter the position specified by the control system.

PWM modulation: Random modulation, asynchronous modulation and synchronous modulation are provided, and users can choose any of them online according to the actual needs, providing greater flexibility and adaptability for the device.

Built-in PID regulator and output 24V power supply: makes the equipment more stable and reliable in the control process, and also simplifies the power supply configuration.

Multiple input ports: including 1 analogue input with 5V voltage, 2 PWM pulse inputs with amplitude less than 12V opto-isolated, and 2 current/voltage opto-isolated analogue inputs. These inputs can be directly connected to the flow signal and pressure signal, providing the device with rich data acquisition capabilities.

Network server function: with embedded 10/100Mbps RJ45 Ethernet port and remote connection function, it can communicate quickly. It supports MODBUS protocol and has the ability to send up to 255 emails with dynamic data. In addition, it can be configured to communicate with a variety of software (e.g., WINLDR software, WINSRVOPC software, HG operator interface, etc.) and MODBUS protocols at the same time, and up to 14 simultaneous connections can be established.

Conceptual links related to overcurrent protection

Although the ABB RXIDK 2H 1MRK000838-HA is not a specialised time-overcurrent relay in itself, its application in industrial automation and control systems can be combined with overcurrent protection systems to jointly ensure the safe and stable operation of power systems. Example:

Data acquisition and monitoring: through its multiple input ports and network functions, the RXIDK 2H 1MRK000838-HA can monitor the current, voltage and other parameters in the power system in real time and transmit the data to the control system. When the current exceeds the preset value, the control system can trigger the overcurrent protection action to cut off the faulty circuit.

Cooperation with protection relays: In power systems, overcurrent relays are usually used to detect current abnormalities and trigger protection actions. the RXIDK 2H 1MRK000838-HA can exchange information and coordinate control with overcurrent relays through its network communication function to achieve more accurate and faster fault detection and positioning.

Scope of application

ABB RXIDK 2H 1MRK000838-HA has a wide range of applications in the field of industrial automation and control systems thanks to its rich functionality, high reliability and powerful communication capability. It can be used for a variety of device configurations and data transmission needs, especially in the need for high-precision pressure measurement and control of the occasion of outstanding performance.

Application Areas

Electric power plants: monitoring and controlling generators, steam turbines, governors and other equipment to ensure the stable operation of the power generation system.

Power transformer and distribution: used in substations and distribution stations to monitor and control transformers, circuit breakers, voltage regulators and other equipment.

Grid control: applied in monitoring, scheduling and control of power systems to ensure the stability and reliability of power networks.

Industrial process control: in manufacturing and chemical plants for automating and monitoring production processes.

Energy Management System: supports the monitoring, analysis and optimisation of energy systems to improve energy efficiency.

Power Generation Scheduling: Coordinates and optimises the operation of power generation plants to meet electricity demand.

Smart Grid: in smart grids to support the digitisation and intelligence of the grid.

Product Parameters

Processor: 32-bit RISC processor

Clock frequency: 100 MHz

Memory: 128MB

Flash memory: 256MB

Communication interface: RS-232/485, Ethernet, etc.

Input/output interface: analogue input/output, digital input/output

Operating temperature: -25°C to +60°C

Storage temperature: -40°C to +85°C

Relative humidity: 5% to 95% (non-condensing)

Protection rating: IP65

Product specification: 300mm x 200mm x 100mm