81H311

Technical Characteristics

• Winding Operating Current

  1.64 amperes ac maximum single component 1st secondary

• Winding Shielding Method

  internal shield grounded to core and brought out to terminal single component

• Body Height

  28.310 inches nominal

• Inclosure Type

  fully inclosed with oil

• Mounting Method

  flange single group

• Input-Output Phase Relationship

  three phase to three phase single component

• Winding Function And Quantity

  1 primary single component and 2 secondary single component

• Mounting Facility Quantity

  14 single group

• Body Width

  14.060 inches nominal

• Body Length

  28.810 inches nominal

• Center To Center Distance Between Mounting Facilities Parallel To Width

  4.469 inches nominal single mounting facility single center group

• Frequency Rating

  50.0 hertz minimum single component and 60.0 hertz maximum single component

• End Item Identification

  an/fps-20

• Special Features

  reference data, fig 275, index 117, t-1301, t.o. 31p6-2fps20-4, sec 2, pg 731; bxr spec dwg n291823-1

• Winding Operating Current

  1.64 amperes ac maximum single component 2nd secondary