4C7EDA

Description

قیمت فروش رله ومپ اشنایدر

MAIN CHARACTERISTICS
• Medium voltage/sub transmission line differential protection (87L)
• Distance protection (including full scheme) with 30 independent
distance elements for 6 measuring systems (21/21E)
• Pilot channel communication functionality for various protection
schemes (85)
• Complete set of time and instantaneous overcurrent, overvoltage,
undervoltage, and frequency protection functions
• Sensitive earth fault protection functions which are suitable for
compensated, isolated and solidly grounded networks
• Programmable protection stages
• Auto-reclose function
• Synchrocheck function
• Switch-onto-fault(SOTF) functionality
• Digital input support for Trip Circuit Supervision
• Selectable nominal DI activation voltage
• Frequency stage df/dt (ROCOF)
• Fault value, alarm led display, event buffer, blackout data and
disturbance recording storage in non volatile memory
• Native solution for IEC61850 communication with support for GOOSE
messages
• Removable / interchangeable communication modules for connecting
the relay to various system communication solutions and medias

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