Abb Reu615 Under Voltage Relay

Abb Reu615 Under Voltage Relay
Made By Abb
Reu615
Reu615e_d
Hbuaeaadnca1bnn1xd
Uaux= 48-250 Vdc/100-240 Vac
Un= 100/110/115/120v (U/uo)
Pq Less Than 10w
Fn= 50/60 Hz
112497
Com0034
2rca023019a0004c
111981
Aim0006
2rca021397a0001h
India
Weight : 3.330 Kg
Ref No(S) : 69241

What is an Under Voltage Relay?

An under-voltage relay is a protective equipment employed within an electrical system to monitor the voltage levels. The relay detects the level where the voltage drops. With the occurrence of an under-voltage, the relay initiates suitable response such as powering down the supply or indicating to the operator that the system should be shut off or otherwise controlled. This helps avoid the deterioration of delicate equipment, prevents efficiency loss, and keeps the system in good working condition.

Brownout or power failure: This means a severe shortage of power supply in your locality.
Overload: This is a scenario where you make demand more than what the existing power supply can meet.
Faulty equipment: There may be some faulty device or appliance connected to the power circuit which might be causing low voltages.

Without an under-voltage relay, when such low voltages are present for some time, equipment failures may arise, overheating, or even a complete system collapse. Without that protective relay, expensive overhauls and down time could be inevitable. Hence, an under-voltage protector significantly helps with the prevention of costly overhauls and down time.

The Essentials ABB REU615

ABB’s Relion has integrated the advanced protection and control solution for utility and industrial power distribution systems. The REU615 is specifically designed to enhance your system’s safety against voltage protection through real-time monitoring, fast response, and highly customizable settings.

Key Features of ABB REU615

Advanced Protection Functions: The REU615 provides many protection features richly, including under-voltage protection (27), over-voltage protection (59), and residual voltage protection. This flexibility makes it suitable for applications ranging from medium-voltage distribution networks to industrial facilities.

Real-Time Monitoring and Diagnostics: Equipped with advanced communication protocols including IEC 61850, DNP3, and Modbus, the relay provides real-time data that is continuously assisting operators in monitoring voltage levels. This helps in early detection of anomalies and fast response to issues.

Flexible Voltage Setup: Another flexibility available in the REU615 would be the ability to set voltage thresholds to fit the needs of one’s system. This ensures that protection is most specific to the machine or facility being protected.

Quick Response Time-In electrical equipment protection time is of the essence. The REU615 relay responds quick enough to protect the system quickly upon detection of under-voltage conditions.

Multiple Communication Options: The relay provides multiple communication options through various protocols that can make the integration with existing systems much easier. Be it a utility grid or an industrial plant, management of the overall system seems much smoother with REU615 due to seamless communication between devices.

Rugged Design for Harsh Environments: Electrical systems often operate in challenging conditions. They can be high humid, extremely hot or cold, or have a great deal of vibration. ABB REU615 is designed to handle such environments with steadfast performance and reliability.

How Does the ABB REU615 Work?

The voltage levels in your electrical system, it has set voltage thresholds, which may be highly personalized according to the users’ needs. Once it reaches the level, the relay immediately activates safety mechanisms.

The very simplified step-by-step on how the ABB REU615 works is the following:

Monitoring Phase: The relay scans for voltage in your electrical system in real-time.

Under-Voltage Detection: This is when the relay detects a level of voltage lower than the preset threshold to allow for the protection action to be initiated.

Activation of Protective Action: This is the initiation of the required protective action. Some equipment will be shut down while other parts of the system get disconnected, or an alarm gets reported to the operator.

Recovery Action: Once the voltage in the system reaches the acceptable levels, some systems can be allowed to recover automatically while others will require manual control according to the chosen protection types.

Applications of ABB REU615

The ABB REU615 can be applied in a broad cross-section of applications, virtually all industries.

Utility Grids: It protects transformers and generators from under-voltage conditions to enable an uninterruptible source of power supply, preventing damage.

Industrial Plants: This machinery and critical equipment are protected to prevent down time and aid in optimum operation.

Renewable Energy Systems: It allows for the smooth operation of solar, wind, and other renewable energy installations, protecting against unstable voltages.

Power Distribution Systems: Monitors and protects electrical distribution systems in residential, commercial, and industrial areas from voltage fluctuations.

Benefits of ABB REU615

Higher System Reliability: Continuous monitoring and protection against under-voltage conditions ensure greater reliability of the system with fewer unplanned outages.

Cost Savings: Avoided equipment damage; lesser time lost together with reduced downtime leading to massive cost savings in repairs, maintenance, and lost productivity.

Easy Integration: REU615 offers for a number of communication protocols. This makes it very easy to integrate the relay into your systems without having to do major alterations.

Increased Safety: Automatic responses to voltage issues are ensured by the REU615, thus reducing the chances of equipment failure and through this, resulting safety hazards in electrical installations.