M-3310
M-3310 Transformer Protection System
Please Note: As of 12/31/2022, Beckwith Electric will no longer be manufacturing the M-3310 Transformer Protection System.
- Beckwith will accept orders for these products until 8/31/2022 and all products ordered must ship before 12/31/2022.
- Please contact us to request a quote and place orders.
- This product may have an alternative replacement product, M-3311A, depending on your application needs. Please contact us for details.
- Fully Digital Multifunction Relay with eight programmable outputs, six programmable inputs, and four multiple setpoint groups
- Suitable for two-winding transformers of any size, and some three-winding applications
- Windows-based software offers extensive graphics for easy inservice commissioning
- Optional three-phase Voltage Protection Package available
Standard Protective Functions
- Negative-sequence inverse time overcurrent (46)
- Two winding, dual element instantaneous overcurrent (50W1 #1, 50W1 #2, 50W2 #1, 50W2 #2)
- Breaker Failure (50BF)
- Transformer neutral, instantaneous/inverse time overcurrent (50G/51G)
- Two winding inverse time phase overcurrent (51W1/51W2)
- Residual, inverse time overcurrent (51NW1/51NW2)
- Two winding, phase differential (87T) and High Set instantaneous (87H)
- Ground differential (87GD)
- Six External functions with individual timers
Optional Three-Phase Voltage Protection Package
- Overexcitation (24) V/Hz
- Phase undervoltage (27) function for load shedding
- Neutral overvoltage (59G)
- Underfrequency (81U)
Standard Features
- Multiple Setpoint Groups
- Eight programmable outputs and six programmable inputs
- Oscillographic recording
- 32-target storage
- Real time metering of measured parameters, with demand and maximum values
- Two RS-232 and one RS-485 communications ports
- Standard 19″ rack-mount design
- Removable printed circuit board and power supply
- 50 and 60 Hz models available
- 1 and 5 A rated CT inputs available
- M-3820A IPScom® Communications Software
- IRIG-B time synchronization
- Includes MODBUS and BECO 2200 protocols
Optional Features
- Redundant Power Supply
- M-3910 Target Module
- M-3931 Human-Machine Interface (HMI) Module
- M-3801D IPSplot® PLUS Oscillograph Analysis Software
- 4-Wire RS-485 Connection
Customer Service
Technical Support