AVR-63T Three Phase Adjustable Current and Voltage Protection Relay

With adjustable protection parameters and real-time digital display, this AVR-63T Three Phase Adjustable Current and Voltage Protection Relay helps prevent damage caused by overvoltage, undervoltage, overload, phase failure and unstable grid conditions. Manufactured by GOTOELE, a professional electrical equipment supplier in China, the AVR-63T provides a compact and reliable protection solution for industrial equipment, commercial facilities, agricultural systems and renewable energy applications.

Product Design and Protection Functions

1. Real-Time Voltage and Current Monitoring

The AVR-63T uses dual digital displays to monitor voltage and current status of each phase.

The display allows electricians to quickly check:

· Phase voltage

· Phase current

· Abnormal operating conditions

· Protection status

Compared with separate meters and protection devices, the integrated monitoring design reduces installation space and simplifies electrical system management.

2. Adjustable Overvoltage and Undervoltage Protection

The relay provides adjustable voltage protection thresholds according to different application requirements.

Overvoltage Protection

When grid voltage exceeds the preset value, the AVR-63T disconnects the load to protect sensitive equipment from high-voltage damage.

Typical protected equipment includes:

· Motors

· Pumps

· Compressors

· Industrial controllers

· Inverters

Undervoltage Protection

When voltage drops below the set value, the device disconnects power to prevent equipment malfunction and motor damage caused by low-voltage operation.

3. Three Phase Current Overload Protection

The AVR-63T supports adjustable current protection settings up to 63A.

When operating current exceeds the preset threshold, the relay disconnects the power supply to protect equipment against:

· Long-term overload

· Motor stall current

· Excessive operating current

· Abnormal load conditions

This function is especially suitable for three-phase motors and industrial electrical equipment.

4. Phase Loss and Phase Unbalance Protection

Three-phase equipment is highly sensitive to phase abnormalities.

The AVR-63T provides protection against:

· Phase loss

· Three-phase voltage imbalance

· Neutral wire failure

When abnormal phase conditions occur, the relay quickly disconnects the load to prevent motor overheating and equipment failure.

5. Adjustable Delay and Automatic Reclosing Function

The built-in timing logic provides flexible power recovery management.

Fault Trip Delay

The adjustable delay avoids unnecessary shutdown caused by short-term voltage fluctuations.Auto Reclosing DelayAfter the grid returns to normal, the device automatically restores power after the preset waiting time.

This function is ideal for:

· Outdoor equipment

· Unattended workshops

· Agricultural facilities

· Remote electrical systems

Typical Application Scenarios

The AVR-63T Three Phase Adjustable Current and Voltage Protection Relay is designed for electrical systems requiring continuous monitoring and automatic protection.

1. Three Phase Motor Protection Systems

Common applications include:

· Water pumps

· Air compressors

· Fans

· Machine tools

· Production line motors

The relay protects motors from phase loss, overload and unstable voltage conditions, helping reduce equipment downtime and maintenance costs.

2. Commercial Power Distribution Systems

Suitable for:

· Central air conditioning systems

· Cold storage equipment

· Commercial electrical cabinets

· Three-phase charging equipment

The AVR-63T improves power supply reliability by preventing damage caused by grid fluctuations.

3. Solar Power and Renewable Energy Systems

Used with:

· Three-phase PV inverters

· Solar distribution cabinets

· Renewable energy control systems

The relay helps protect equipment from abnormal voltage conditions and phase imbalance during grid connection.

4. Agricultural Electrical Equipment

Suitable for:

· Irrigation pumps

· Livestock ventilation systems

· Agricultural processing machines

The automatic reclosing function helps maintain operation in rural areas where voltage instability may occur.

5. Industrial Control and Automation Systems

Applied in:

· Industrial control cabinets

· Servo power systems

· UPS systems

· Automation equipment

The digital monitoring function allows operators to quickly identify electrical abnormalities.

Global Application Case

1. Southeast Asia Water Pump Protection Project

The AVR-63T Three Phase Adjustable Current and Voltage Protection Relay was installed in a three-phase water pump control system in Southeast Asia.

The local power network experienced occasional voltage fluctuations and phase imbalance, which affected normal pump operation.

By monitoring voltage and current conditions in real time, the AVR-63T automatically disconnected the power supply during abnormal conditions and restored operation after voltage recovery.

The customer improved equipment protection and reduced manual inspection requirements.

Project Details:

· Application: Three-phase pump protection

· Installation: Distribution control cabinet

· Protection functions: Overvoltage, undervoltage, overload and phase loss protection

· Key requirements: Automatic protection and unattended operation

Installation and Configuration Advantages

1. Standard DIN Rail Mounting

The compact modular structure allows direct installation inside:

· Distribution boxes

· Electrical cabinets

· Industrial control panels

The standard DIN rail design simplifies installation and replacement.

2. Easy Parameter Adjustment

Protection values can be configured through adjustment knobs without complex programming.

Electricians can quickly set:

· Voltage thresholds

· Current limits

· Trip delay time

· Reset delay time

This improves installation efficiency in different application environments.

3. Integrated Protection Solution

The AVR-63T combines multiple protection functions in one device:

· Voltage relay

· Current relay

· Phase failure protector

· Auto reset controller

This reduces cabinet space requirements compared with using multiple independent devices.

Technical Specifications

Manufacturing and Quality Assurance

GOTOELE applies standardized manufacturing processes to ensure reliable performance of each AVR-63T Three Phase Adjustable Current and Voltage Protection Relay.

Quality control includes:

· Electronic component inspection

· Protection function testing

· Display accuracy verification

· Load switching testing

· Final product inspection

Each product is tested before shipment to ensure stable operation in different electrical environments.

With professional low-voltage electrical manufacturing experience, GOTOELE provides reliable protection solutions for global customers.

Why Choose GOTOELE AVR-63T Protection Relay

1. Complete Three Phase Protection

One device integrates voltage, current and phase protection functions, simplifying electrical system design.

2. Real-Time Electrical Monitoring

Digital displays allow quick identification of voltage and current conditions without additional meters.

3. Flexible Adjustable Parameters

Users can configure protection values according to different equipment requirements.

4. Automatic Power Recovery

The auto reclosing function reduces manual intervention in unattended applications.

Packaging and Delivery

Each AVR-63T Three Phase Adjustable Current and Voltage Protection Relay is packed with protective materials for safe transportation.

GOTOELE supports standard export packaging, bulk supply and OEM customization including product labeling and packaging requirements.

FAQ

Q1: What does the AVR-63T protect against?

The AVR-63T provides protection against overvoltage, undervoltage, overload, phase loss and phase imbalance conditions.

Q2: Can the AVR-63T protect three-phase motors?

Yes. It is suitable for three-phase motors such as pumps, fans and compressors by preventing damage caused by abnormal voltage and current conditions.

Q3: Does the relay automatically restore power after a fault?

Yes. After the electrical condition returns to normal, the automatic reclosing function restores power according to the preset delay time.

Q4: Is the AVR-63T suitable for outdoor applications?

Yes. It can be used in outdoor electrical cabinets and remote equipment systems when installed with appropriate enclosure protection.

Q5: Does GOTOELE support OEM customization?

Yes. GOTOELE provides OEM services including customized labels, packaging and technical requirements according to customer needs.