Item_Description.pdf

ITEM DESCRIPTION

NSN

6130015616085AH

CAGE

088K1

REFERENCE NUMBER

BA23097

NOUN

POWER SUPPLY

END ITEM

This is the End Item

TCTO NUMBER TO NUMBER

21M-LGM30F-4-7, Figure 7-27B

CRITICALITY CODE

H

DEMILITARIZATION CODE

D

SECURITY CODE

MDC

MMI

ES CODE

M7

REMARKS

Touse, Robert JNAME: 09 DEC 2014DATE:

ES reviewed for currency. asset is an ESS assembly.

Farley, Danny LNAME: 02 FEB 2010DATE:

The Energy Storage System (ESS) is a hardened, electromagnetically-shielded cabinet in the Level 1 Launch Eequipment Room (LER-1). The existing facility power is insufficient for operation of the Fast B-Plug system. The purpose of the ESS is to provide the additional power necessary for Fast B-Plug operation in the presence or absence of facility power (minimum of 2 raise/lower cycles in the absence of facility power). One cycle is defined as raising the Secondary Door from the lowered position to the fully raised position and then returning it to the lowered position. The ESS is a modified, commercial off-the-shelf (COTS) item (Pentadyne VSS-120) that stores electrical energy received from the Motor Drive Cabinet (MDC) as kinetic energy in a carbon fiber flywheel. The ESS converts the stored kinetic energy when needed to maintain system voltage levels. When the secondary door is lowered, the EMA motor, in conjunction with the motor drive, acts as a generator, converting downward motion of the Secondary Door into electrical energy (regeneration) to charge the ESS

INITIATOR

NAME

ROBERT.J.TOUSE

ORGANIZATION / OFFICE SYMBOL

414 SCMS / GUMBB

DSN PHONE

777-8591

COMMERCIAL PHONE

801-777-8591

ITEM DESCRIPTION DATA

LENGTH ( IN )

26.0000

WIDTH ( IN )

34.0000

HEIGHT ( IN )

72.0000

WEIGHT ( LB )

2,000.0000

OTHER DIMENSIONS

34"W x 26"D x 72"H and about 2000 pounds

ITEM MATERIAL

Primarily Steel. Core unit has a carbon fiber flywheel supported by magnetic bearings cooled by paratherm oil and sealed in a pressurized tank.

ITEM FUNCTION

The ESS stores electrical energy received from the Motor Drive Cabinet (MDC) as kinetic energy in a carbon fiber flywheel. The ESS converts stored kinetic energy into electrical energy.

SAFETY CRITICAL SCREW

THREADED COMPONENT

ESD CEMS SENSITIVE DATA

STATEMENT OF HELIUM CONTENT (%) 0 PRECIOUS METAL INDICATOR CODE

GFM REQUIRED GFE REQUIRED GFP REQUIRED

JEWEL BEARING JEWEL BEARING RELATED

LEGACY ITEM DESCRIPTION

Page 1 of 1ITEM DESCRIPTION Version 2Generated by PRPS using Jasper Reports on 18 Sep 2019