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 Three-Winding
Protection for Transformers of All Sizes
Reduce project and ownership costs—
- Standardization for 2- and 3-winding differential applications
- Commissioning tools to speed factory acceptance testing and field
start-up
- Configurable and selectable elements to meet protection challenges
for different winding types, CT connections, and grounding of transformers
- Programmable I/O for advanced scheme logic applications
- Meets ANSI and IEC relay compliance standards
- Integral metering, event logging, communications and waveform capture
Enhance security and operational use—
- Dual slope restrained differential, high-set unrestrained differential
and restricted earth fault differential elements provide excellent unit
protection
- Unique 2nd and 4th harmonic restraint for enhanced security on transformer
energizing (inrush detection). 5th harmonic restraint for security during
overexcitation events
- Overexcitation (V/Hz) element for extended asset protection
- Undervoltage and underfrequency elements for load shedding applications
- Phase and ground overcurrent elements for back-up protection
- Optional breaker failure protection and breaker monitoring for each
winding input.
Sales and Service
For sales and service information
contact your local representative
or contact the factory:
E-mail: sales@beckwithelectric.com
Call (727) 544-2326
or Fax (727) 546-0121
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Look at the NEW M-3311A
Two, Three or Four Winding Protection for Transformers of All Sizes.
Software
Protocol Document
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Note: Documents are provided in Adobe
Acrobat PDF format and require Acrobat
5.0 or higher to view.
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