5950-01-257-9287, TRANSFORMER,POWER

6220-01-257-9288 LIGHT,NAVIGATIONAL,AIRCRAFT

National Stock Number:
5950-01-257-9287

Federal Supply Class:
5950

National Item Identification Number:
012579287

Description:
TRANSFORMER,POWER

Detail:
A TRANSFORMER CONSISTING OF ONE OR MORE PRIMARY WINDING(S) AND ONE OR MORE SECONDARY WINDING(S). IT MAY BE DESIGNED FOR DIRECT CONNECTION TO AN ALTERNATING CURRENT SOURCE FOR PURPOSES OF CHANGING THE SECONDARY VOLTS AND AMPERES OR DESIGNED TO ELIMINATE METALLIC INTERCONNECTION BETWEEN CIRCUITS IN AN OVERALL ONE TO ONE VOLTAGE RATIO, WITH OR WITHOUT ADDITIONAL OUTPUT WINDINGS, OR ITEMS DESIGNED TO AUTOMATICALLY MAINTAIN A CONSTANT OUTPUT VOLTAGE WITHIN SPECIFIED LIMITS UNDER VARYING INPUT OR LOAD CONDITIONS. ALSO INCLUDES ITEMS HAVING A PROVISION FOR MECHANICALLY CHANGING THE TURNS RATIO OR INDUCTIVE COUPLING IN PROGRESSIVE INCREMENTS BY MEANS OF VOLTAGE TAPS, RATIO ADJUSTER, OR DEVICES OE SIMILAR DESIGN. FOR TRANSFORMERS HAVING WINDING(S) COMMON TO BOTH INPUT AND OUTPUT CIRCUITS, SEE TRANSFORMER (1), POWER, AUTOTRANSFORMER. EXCLUDES TRANSFORMER (1), PULSE.

Manufacturer Information:

245B955H01	97942	NORTHROP GRUMMAN SYSTEMS CORPORATION
740102PC95	30086	L3HARRIS MARITIME POWER & ENERGY SOLUTIONS, INC.
TF4SX02YY	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	2.880 INCHES NOMINAL ALL MOUNTING FACILITIES SINGLE CENTER GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH	1.630 INCHES NOMINAL ALL MOUNTING FACILITIES SINGLE CENTER GROUP
FREQUENCY RATING	400.0 HERTZ NOMINAL SINGLE COMPONENT
INCLOSURE TYPE	FULLY INCLOSED
INPUT-OUTPUT PHASE RELATIONSHIP	THREE PHASE TO THREE PHASE SINGLE COMPONENT
OVERALL HEIGHT	3.590 INCHES NOMINAL
OVERALL LENGTH	3.720 INCHES NOMINAL
OVERALL WIDTH	2.470 INCHES NOMINAL
MOUNTING FACILITY QUANTITY	4 ALL GROUPINGS
MOUNTING HOLE DIAMETER	0.201 INCHES NOMINAL SECOND GROUP
MOUNTING METHOD	THREADED STUD(S) FIRST GROUP
MOUNTING METHOD	UNTHREADED HOLE(S) SECOND GROUP
NOMINAL THREAD SIZE	0.164 INCHES FIRST GROUP
RELIABILITY INDICATOR	NOT ESTABLISHED
WINDING FUNCTION AND QUANTITY	1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
WINDING OPERATING CURRENT	0.53 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
WINDING OPERATING CURRENT	0.53 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
WINDING OPERATING CURRENT	0.9 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
WINDING OPERATING VOLTAGE	200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
WINDING OPERATING VOLTAGE	21.50 AC VOLTS MINIMUM AND 23.00 AC VOLTS MAXIMUM SINGLE COMPONENT FIRST SECONDARY
WINDING OPERATING VOLTAGE	28.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
TERMINAL TYPE AND QUANTITY	12 THREADED STUD
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC) FIRST GROUP

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