8. Electrical maintinence

SHORT NAME  ⇒⇒   ф = Phase , ⬇️ Less , ⬆️ more  ,

Mantinence - अनुरक्षण
कम पैसे में machine ,वस्तु , प्लांट कम मूल्य में   संतोषजनक चलाना

Repair - मरम्मत क्षति ग्रस्त को सुधारणा
Mantinence - मरम्मत के बाद भी पहुंची क्षती में सुधार कार्य करना

Motive - production time में खराबी नही
Maintinence Cost ⬇️↓
plot efficiency ⬆️
Again repair short time
Production⬆️ cost⬇️
Application safly worked
Oprator happy

For regularly work points - 
Perday machine सफाई साफ हवा उचित temp.
Time to time inspection 
Machine work study for speedly solution
उचित औजार उपलब्ध imigeitly required
दोस record generaly generate दोस पर्याप्त ज्ञान

Maintenance type -
1.preventive 2. Breackdown

1. (a)   Routine M- machine app. Insulator, buss, startrr connecotr bearing से धूल गंदगी हटाना
जला गसा contract बदले
Circit bracker oil change
 (b)  Overhaul M. - Pre planned ताकि brack down time कम से कम हो
Main part change, rewinding, Circit braker buss change, machine सफाई खराब part change
2. BDM - अचानक आई खराबी दूर करना समय खराब किये बिना तुरंत पार्ट repair कर machine चालु करना

For speedly machine mantinence -
A inspection

B record

C tool equipment

D safty  equipment

E electric tragedy

Ac Dc machine repair mantinence -

DC machine mantinence  दोष
1. Area circit दोस
A open circit दोस
B short circit दोस
C rong connection
D Earth fault

2. Armature fault
3.bruss gear
4. यांत्रिक
5. Bruss spark

Dos         cause         solution



Dc currnt generator make Reason for not producing voltage

• Armature field स्योजन गलत
• Armature गुमने की दिस गलत
• Genetor field resistence > critical aresistence
• ब्रुस contact
• Commutator surface oily
• Area avsist magnat kam
• क्षेत्र कुंडलं मे short circit
• क्षेत्र circit open
• Genetor speed low

Dc machine preventative mantinence gap -

DAILY -- temp. , brush spark, सफाई, commutator brush pressure adjust, machine vibration, oil part Give oil

WEEKLY - base bolt nut checking, viring tight, blower clean, commutator test clean

MONTHLY - field pole armuture gap test, commutator surface repair As required
, startor resister point test change  , bearing oil greesing

YEARLY - Bering Grees change, all overhal, pent

Manti.  AC machine-
Industrial work most usese देख रेख़् अधिक required
Weaknes
1.open circit fault - winding Wire disconnect with terminal, winding Wire crash, terminal जन्ग
Earth fault -  winding condector body touch test lamp ohm metar use
Short circit fault -1. winding 2 winding contact

Single phase winding coil circul  contact
Test check -- shunt ohm / test lamp use
Winding wrong connection - star delta
पिंजरी प्ररिन motar rotar fault - copper aluminium rod ring short circit  rod crash or ring space
Slipring rotar fault - 

3ф INDUCTION OTER  FAULT OR SOLUTION - 

MOTER STARERTER FAULT SOLUTION -