M-3311A Transformer Protection (2, 3, or 4-Winding) Relay
Brand: Beckwith Electric
Catalog ID: M-3311A
Protect Transformers and Other Important Power System Apparatus.
- For Transformers of All Sizes
- 2, 3 or 4 winding Transformers for Transmission and Distribution applications
- Generator-Transformer Unit Overall Differential
- Unit Protection of Other Electrical Apparatus and certain Bus Arrangements (including those with a transformer in the zone)
- Additional Applications:
- System Backup Protection
- Load Shedding (voltage and frequency)
- Bus Protection
- Individual Breaker Failure Protection for each winding input
- Available voltage configurations include zero, two or four voltage inputs
- Ground Differential configurations include one, two or three current inputs
- Optional Ethernet Connection and Expanded I/O
- Optional Voltage Package includes:
- 24 Volts/Hz Overexcitation
- 27 Phase Undervoltage
- 59G Ground Overvoltage
- 81O/U Over/Under Frequency
Product details
General
Application
Transformer Protection
Catalog Number
M-3311A