naval dockyard, mumbai - Irfc-nausena.nic.in

NAVAL DOCKYARD, MUMBAI
TITLE : QUALITY ASSURANCE PLAN DOC CODE Q C L 7 4 Q A P 0 6 3
DEPT. :
QC(ELECTRICAL )
C. NO. 74 ISSUE NO : 00 DATE : 15 Apr 12 PAGE 02 OF 14
5. QC CHECKS TO BE UNDERTAKEN AS PER SOW/ CHECK LIST :
Sr. ACTIVITY
No. DESCRIPTION
REFERENCE DOCMENT & CHECK LIST INSPECTION
SCOPE OF WORK P R W H
01 Repair, Overhauling, Refer to QAP : QCL074QAP001 for Alternator 1 2&3 3 3
refurbishment, new (i) Checks during removal and opening inspection,
installation and Check for technical details of removed / opened
commissioning/Testing Alternator for any damage /missing /
of Alternator / abnormalities . Check for serviceability / condition
Generator
of Alternator for to ascertain the serviceability of
each components to undertake repair/ overhaul /
renewal.
ii) Check for old & New bearings to be QC checked
before fitment at QC bearing Lab.
iii) Check winding ohmic values & insulation of winding.
iv) Check for overhauling and cleaning of all by CTC /
alcohol / petrol Alternator parts like body, winding, rotor,
shaft, rocker
Arms, carbon brusher & AVR . Defective parts to be
renewed as per sample and reputed / OEM make
conforming IS.
v) Carbon brusher to be renewed as per grade & size
confirming IS
vi) If winding found burnt/over heated/Zero insulation
(Not improved even overhauling) to be rewound as per
original data.
vii) New procured winding wire to be QC checked in the
QC WWT Lab
viii) Dr bake varnish / coat varnish to be applied on the
winding.
viii) Rotor to be balanced and trueness checked.
Certificate to be provided .
ix) Shaft bearing size to be checked, if found changes
then rotor shaft built up/machined by fabrication &
machining.
x) Check rotor bar open / crack / shorted with shaft to be
repaired, if It found beyond then to be renewed as per
design.
xi) Check for inspection for insulation & proper
assembling, fitment, alignment and connections.
xiii) Check for terminal block, terminal connections
cables lugs, cable glands. Check for insulation of Cable
1 2&3 3 3
DYT/INCOD/12­13/106(a)/PL­YCM/MADHUR­REFIT/420 67/127