Description

SEPAM G87 Generator Protection Relay

Technical Specifications

• Product Model: Sepam G87
• Brand: Schneider Electric
• Warranty: One Year
• Protection Functions: Differential protection, phase overcurrent, earth fault, over/under voltage, over/under frequency, reverse power, loss-of-excitation for generators
• Measurement: 3-phase current, voltage, active/reactive power, energy, power factor, frequency
• Current Inputs: 5 A / 1 A secondary CT inputs
• Voltage Inputs: 100 V / 400 V secondary VT inputs
• Operating Temperature: -25 °C ~ +70 °C
• Storage Temperature: -40 °C ~ +85 °C
• Protection Class: IP40 front panel, IP20 rear housing
• Communication: RS-485 Modbus RTU, optional IEC 61850, Ethernet
• HMI: Local LCD display with keypad, fault event and disturbance recording
• System Compatibility: Power plant generator protection panels, substation automation systems
• Certifications: IEC 60255 compliant
• Humidity: 5-95 % RH non-condensing
• Weight: 2.5 kg
• Dimensions: Standard 4U rack-mount / panel-mount footprint
• 

Product Overview

Sepam G87 is a dedicated generator protection relay from Schneider Electric Sepam 80 series. It delivers comprehensive protection for small to medium capacity synchronous generators in thermal power plants, hydro stations and industrial captive power plants. It integrates differential protection, stator and rotor fault protection and abnormal operating condition protection to safeguard generator assets against electrical faults. Communication ports enable remote monitoring and SCADA integration. Surplus and refurbished tested spare protection relay for power plant generator protection panel maintenance projects.

Application Notes

• Configure protection settings according to generator technical parameters.
• Perform primary or secondary injection protection test before commissioning.
• Typical deployment: Generator protection relay spare-part stocking.