Transformer Four-Winding Protection M-3311A
Integrated Protection System®
Worksheet
 

We offer our most popular configurations; however, if you need a different configuration, please complete the following questionnaire, click on submit and we will call you within the next business day with a quote for an M-3311A including your specific options. Domestic shipments are F.O.B. factory. International shipments are FCA factory. Prices subject to change without notice. Prices listed are in USA dollars. All orders are subject to Beckwith Electric Co., Inc. standard terms of agreement.

UNIT DESCRIPTION: The Transformer Protection System M-3311A provides protection, control, monitoring and user interface functions for two, three or four-winding transformers. Includes restrained and unrestrained differential protection, overcurrent protection, and optional voltage, and underfrequency protection. Multiple setpoint groups and user-implementable logic schemes provide flexibility. Dual RS-232 ports and an RS-485 port provide user-interface capabilities. Optional modules include the HMI Module for front-panel operation, the Target Module to indicate trip target status and redundant power supply. The M-3311A can be purchased as a differential and overcurrent relay or with the Optional Voltage Protection Package. The M-3826 IPScom® Communications Software is included for direct serial or remote communication access. Waveform data can be downloaded using IPScom®, while the M-3801D IPSplot® PLUS Oscillographic Analysis Software allows for plotting and printing of the downloaded oscillographic data.

Price
Quantity
Description
     
$3,700.00
Transformer Two, Three or Four-Winding Protection System, includes IPScom® Communications Software and the following protective functions:
   
  • Negative sequence overcurrent (46)
  • Winding thermal (49)
  • Four-winding instantaneous phase overcurrent (50)
  • Breaker failure (50BF)
  • Instantaneous ground overcurrent (50G)
  • Instantaneous residual overcurrent (50N)
  • Four-winding inverse time phase overcurrent (51)
  • Inverse time ground overcurrent (51G)
  • Inverse time residual overcurrent (51N)
  • Ground differential (87GD)
  • Phase differential (87T) and high set instantaneous (87H)
  • Six IPSlogic functions with individual timers
     
$800.00
   M-3311A Optional Voltage Protection Package (1Ø )
   
  • V/Hz overexcitation, two definite time and one inverse time elements (24)
  • Phase undervoltage for load shedding (27)
  • Ground overvoltage (59G)
  • Over/Underfrequency (81O/U)
     
M-3311A Optional Features
   
    1. Power Input/Current Transformer Secondary Rating
   
     
    2. Operating Frequency
   
     
    3. Phase Rotation
   
     
$250.00
4. Target Module, M-3911A (D)
     
$250.00
   5. Human-Machine Interface (HMI) Module, M-3931 (E)
     
$420.00
   6. Redundant Power Supply
   
Low Voltage 24-48 V, M-3934 (F1)
High Voltage 110-250 V, M-3935 (F2-S)
     
    7. Mounting Options
N/C
  
$215.00
  
$215.00
  
$215.00
  
   
  8. Trip/Close Circuit Monitoring Input Voltage
   
   
$500.00
   9. Ethernet Port Connection (K)
 
M-3311A Accessories
 
Price
Quantity
Description
$675.00
1. M-3801D IPSPlot® Plus Oscillograph Analysis Software
     

$15.00
2. M-0423 10' RS-232 Serial Null-Modem Cable (DB9 to DB9)
     
$80.00
3. M-0433, USB to Serial Adapter with 10' RS-232 Serial Modem Cable (straight through, DB9 to DB25)
     
$48.00
4. M-3933, 10' RS-232 Serial Modem Cable (straight through, DB9 to DB25)
   

5. Instruction Books
One IPS Product Support CD is provided with each relay at no charge. Included on the CD are:

  • M-3820B IPScom Communications Software
  • M-3311A Instruction Book
  • M-3311A Protocol Document
$20.00
English Instruction Book (paper copy)
     
$530.00
5. M-3908 - Universal Contact Input Adapter
     
     
$5.00
Additional IPS Product Support CD
     
Total:
   
 

The total price is based on the Beckwith Electric Company list price. Upon review of your submitted worksheet, we will provide by return e-mail a firm quotation which will include any applicable discounts.


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