5950-01-138-9720, TRANSFORMER,POWER

National Stock Number:
5950-01-138-9720

Federal Supply Class:
5950

National Item Identification Number:
011389720

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:

77C718042P001	03538	LOCKHEED MARTIN CORPORATION
GE-3P125	20950	ESPEY MFG AND ELECTRONICS CORP
GE-3P125	98675	ESPEY MFG. & ELECTRONICS CORP.

Techincal Specification:

BODY HEIGHT	4.000 INCHES NOMINAL
BODY LENGTH	5.250 INCHES MAXIMUM
BODY WIDTH	4.500 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	3.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH	2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
FREQUENCY RATING	50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
INCLOSURE TYPE	FULLY INCLOSED
INPUT-OUTPUT PHASE RELATIONSHIP	THREE PHASE TO THREE PHASE SINGLE COMPONENT
MAXIMUM OPERATING TEMP	65.0 CELSIUS
MOUNTING FACILITY QUANTITY	1 SINGLE GROUP
MOUNTING METHOD	THREADED HOLE(S) SINGLE GROUP
NOMINAL THREAD SIZE	0.138 INCHES SINGLE GROUP
RELIABILITY INDICATOR	NOT ESTABLISHED
WINDING FUNCTION AND QUANTITY	1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
WINDING OPERATING CURRENT	20.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
WINDING OPERATING VOLTAGE	208.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
WINDING OPERATING VOLTAGE	13.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
WINDING SHIELDING METHOD	INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
TERMINAL TYPE AND QUANTITY	6 TAB, SOLDER LUG
THREAD QUANTITY PER INCH	32 SINGLE GROUP
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
TRANSFORMER WINDING CONNECTION TYPE	DELTA-WYE

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