REU615

Description

Parameter Specifications

1. Power Supply
   • The REU615 can be powered by a wide – range AC or DC supply. The typical AC input range is 85 – 265V, 50/60Hz, while the DC input range is 100 – 350V. This flexibility allows it to be used in various electrical environments.
2. Measurement and Protection Functions
   • It can measure multiple electrical parameters such as voltage (up to 690V), current (up to several thousand amperes depending on the current transformer used), power, energy, frequency, and power factor.
   • For protection, it offers over – current, over – voltage, under – voltage, and earth – fault protection functions with adjustable settings.
3. Communication
   • Supports multiple communication protocols, including Modbus RTU over RS – 485 and Ethernet – based protocols like Modbus TCP. This enables seamless integration with SCADA systems, PLCs, and other monitoring and control devices.

Uses

1. Power Distribution Systems
   • In industrial and commercial power distribution networks, the REU615 is used to monitor and protect electrical feeders. It can detect abnormal electrical conditions, such as short – circuits or over – loads, and quickly isolate the faulty section to prevent further damage.
2. Renewable Energy Systems
   • For solar or wind power plants, it monitors the power output, voltage, and current of the generation units. It also protects the electrical equipment from potential faults in the power conversion and distribution processes.
3. Building Automation
   • In large buildings, it can be used to manage and monitor the electrical consumption of different areas. By providing real – time energy data, it helps in energy management and cost – control.

Weight and Dimensions

1. Weight
   • The device weighs approximately 2 – 3 kg, which is relatively light considering its functionality and the robust construction.
2. Dimensions
   • It has a compact design with dimensions around 220mm (height) x 160mm (width) x 100mm (depth). This allows for easy installation in standard electrical cabinets.

Characteristics

1. High – Accuracy Measurement
   • The REU615 provides high – accuracy measurement of electrical parameters, with an accuracy of up to ±0.2% for voltage and current measurements. This ensures reliable monitoring and control of electrical systems.
2. Flexible Configuration
   • Users can easily configure the device according to their specific requirements. The settings for protection functions, measurement ranges, and communication parameters can be adjusted via a user – friendly interface.
3. Self – Diagnosis Function
   • It is equipped with a self – diagnosis function that can detect internal faults and communicate them to the monitoring system. This helps in quick maintenance and reduces downtime.

Stability and Reliability

1. Robust Design
   • The device has a robust housing that can withstand harsh industrial environments, including temperature variations, humidity, and mechanical vibrations.
2. Redundant Protection
   • It features redundant protection mechanisms to ensure continuous operation even in the event of a single – point failure. For example, it may have backup power supplies and redundant communication channels.
3. Long – Term Testing
   • The REU615 has undergone extensive long – term testing under various operating conditions to ensure its stability and reliability over a long service life.

Actual Cases

1. Industrial Factory
   • In an industrial factory, the REU615 was installed on the main electrical feeders. It detected an over – current condition caused by a short – circuit in one of the production lines. The device quickly tripped the circuit breaker, preventing a large – scale power outage and protecting the electrical equipment from damage.
2. Solar Power Plant
   • At a solar power plant, the REU615 monitored the power output of the solar panels. It detected a drop in power due to a malfunction in one of the inverters. By sending an alarm signal to the control center, maintenance personnel were able to quickly identify and fix the problem, minimizing the loss of power generation.