VAMP 265 Protection Relay VAMP265-037644 | Schneider Electric

The Schneider Electric VAMP 265 is a differential protection relay that protects generators, transformers, and motors in utility and industrial power systems. It has built-in arc-flash protection and a lot of communication options. It improves the safety and reliability of medium-voltage installations by combining rapid and selective protection, improved measurement, and flexible configuration.

Product Details:

• Model number: VAMP265-037644 for the SCHNEIDER ELECTRIC VAMP 265 Protection Relay.
• Application: protecting generators, transformers, motors, and short cables from short circuits in networks that are firmly or impedance-earthed.
• Type: A numerical protection relay with full digital signal processing and an option for arc-flash protection built in.
• Common uses: industrial plants, marine power systems, utilities, and power generation when reliable differential and backup overcurrent prevention is needed.

Key Features of VAMP 265:

• Full differential protection for motors, transformers, and generators, with great stability during faults.
• A dual-slope bias is needed for safe operation when the load or fault circumstances change.
• Selectable blocking of the 2nd and 5th harmonics to make the transformer more stable during inrush and overexcitation.
• Wide dynamic current input range, enabling to measure short-circuit currents up to 50 × In.
• An integrated, ultra-fast arc protection option with an arc sensor interface that can trip quickly in case of internal problems.
• Fully digital 16-bit microprocessor technology with 16-bit A/D conversion for very precise measurements.
• Disturbance and event recorders for extensive fault analysis and reporting after a fault.
• Programmable safety stages (overcurrent, ground fault, voltage, and frequency stages) and flexible logic.

Benefits of VAMP 265:

• Improved safety: Fast and selective differential and arc-flash protection reduce damage to equipment and make operators safer.
• High reliability: Strong bias characteristics, harmonic blocking, and self-supervision keep things running smoothly even when conditions are tough.
• Operational flexibility: The ability to configure a wide variety of settings and program operations makes it easy to adapt to varied generators, transformers, and motors.
• Simple to combine: The VAMP 265 is good for both new and retrofitted automation applications because it can communicate with multiple protocols and has built-in Ethernet.
• Less downtime: Powerful disruption and event recording help with quick fault identification and targeted maintenance.

Protection Functions:

-> Two distinct overcurrent stages for protecting the phase differential.

-> Overcurrent protection stages for phase failures, as well as backup protection for devices that are downstream.

-> Sensitive stages for ground faults, such as earth-fault and earth-fault overcurrent.

-> Protection against negative sequences and current unbalance for spinning machinery like motors and generators.

-> Circuit Breaker Failure protection to make sure that if the main breaker fails, the circuit will trip down other channels.

-> Dedicated arc sensor inputs for arc-flash protection stages to reduce the amount of energy and damage to equipment.

-> Options for network monitoring and backup that defend against low voltage, high voltage, and frequency.

Communication and Connectivity

• Standard serial communication that works with a number of protocols, such as IEC 60870-5-101/103, Modbus RTU/TCP, Profibus DP, DNP3.0, and IEC 61850 (including GOOSE).
• Built-in Ethernet port for direct connection to modern substation automation systems (depending on the model and options).
• Ports for communication in the front and back for local configuration and remote SCADA integration.
• Works with VAMPSET PC program to adjust parameters, download disturbances, and set up relays.

Ratings:

-> Rated current inputs: usually 1 A or 5 A (depending on the type), however they can handle overloads of up to 20 × In for 10 seconds and 100 × In for 1 second.

-> Voltage inputs: roughly 50–120 V (configurable), with a measurement range of up to about 175 V and a continuous withstand of up to around 250 V.

-> Frequency: 45–65 Hz, with a measurement range that goes from around 16 to 75 Hz.

-> The auxiliary power source can be 40 to 265 Vac/dc using a built-in self-regulating converter, or it can be 18 to 36 Vdc (depending on the version).

-> Typical power use is less than 7 W when the device is in regular operation and less than 15 W when the outputs are on.