Schneider VAMP 265 PowerLogic Differential Protection Relay

Schneider VAMP 265 PowerLogic Differential Protection Relay is a numerical relay designed to provide differential protection for generators, transformers, and motors in low- and medium-voltage power systems. It combines fast fault detection with dependable protection, making it suitable for industrial plants, utility substations, and power generation facilities.

The relay compares current entering and leaving the protected equipment to detect internal faults while maintaining high stability during external faults and heavy through-fault conditions. Features such as harmonic blocking, numerical CT ratio correction, and selectable transformer connection groups help improve protection accuracy and reduce unnecessary tripping.

VAMP 265 also includes backup overcurrent protection, event recording, disturbance recording, and built-in Ethernet communication with native IEC 61850 support. When generator protection is required, it can be used together with the VAMP 210 relay to provide a complete protection scheme.

Specifications

• Product Name: Schneider VAMP 265
• Product Family: PowerLogic™
• Relay Type: Differential Protection Relay
• Application: Generators, Transformers and Motors
• Protection Principle: Current Differential Protection
• Differential Characteristic: Dual-slope bias with fast operating time
• Harmonic Restraint: 2nd and 5th harmonic blocking
• CT Compensation: Numerical CT ratio correction
• Transformer Support: Selectable connection groups
• Backup Protection: Differential overcurrent and earth fault overcurrent stages
• Circuit Breaker Failure Protection: Supported
• Event Recording: Up to 2,000 event and fault records
• Disturbance Recorder: Built-in
• Arc Protection: Optional
• Communication: Native IEC 61850 with GOOSE messaging
• Ethernet Interface: Built-in
• Additional Communication: Optional VAMP communication modules
• Configuration Software: VAMPSET

Features

• Differential protection for generators, transformers and motors
• High stability during through faults
• Fast operating time with dual-slope bias characteristic
• 2nd and 5th harmonic blocking to reduce unwanted tripping
• Numerical CT ratio correction
• Selectable transformer connection groups
• Differential overcurrent protection
• Earth fault overcurrent protection
• Circuit breaker failure protection
• Built-in disturbance recorder
• Stores up to 2,000 event and fault records
• Built-in Ethernet with native IEC 61850 and GOOSE messaging
• Optional arc protection interface
• Can be paired with VAMP 210 for complete generator protection
• Easy configuration using VAMPSET software

Applications

• Generator differential protection
• Power transformer protection
• Motor differential protection
• Utility substations
• Industrial power distribution systems
• Captive power plants
• Hydroelectric and thermal power stations
• Renewable energy generation facilities
• Oil and gas installations
• Mining operations
• Cement and steel plants
• Water and wastewater treatment plants
• Electrical protection retrofit and modernization projects