EV TECHNICIAN TRAINING
Wiring, Fuse & Connectors
Wiring, fuse, MCB, connector, ground aur voltage drop ki practical jaanch.
What You Will Learn
EV me kai samasyaein loose connector, toote wire, corrosion, kharab crimp ya kharab ground se paida ho sakti hain.
1
Wire aur Connector ki Jaanch
Upar se theek dikhne wala connector bhi kharab ho sakta hai
Connector me loose pin, peeche khiski pin ya toota lock dekhein.
Hara ya safed jamaav corrosion ka sanket ho sakta hai.
Kaala ya pighla plastic zyada heat ka sanket ho sakta hai.
Wire ka insulation kata, ghisa ya daba hua to nahi, dekhein.
Crimp terminal dheela hone par resistance aur heat badh sakti hai.
Connector me paani ya nami jaane ke nishan dekhein.
Practical Tip:
Connector ko sirf dekhkar sahi na maanein. Zaroorat padne par meter se test karein.
2
Fuse aur MCB
Gaadi ki protection kaise kaam karti hai
Fuse zyada current aane par circuit ko khol deta hai.
MCB trip hone par kai systems me usse reset kiya ja sakta hai.
Fuse ka rating gaadi ki zaroorat ke anusaar hona chahiye.
Fuse baar-baar udne par short ya zyada current ka karan dhundhein.
Fuse ko wire se jodkar bypass na karein.
Practical Tip:
Protection device hata kar gaadi chalana safe nahi hai.
3
Voltage Drop Test
Voltage aa raha hai phir bhi power kam kyun hai?
Kisi wire me voltage dikhna ye saabit nahi karta ki wo load par bhi sahi hai.
Loose ya corroded connection load ke samay voltage drop kar sakta hai.
Load ON karke connection ke dono taraf voltage difference measure kiya ja sakta hai.
Jahan zaroorat se zyada voltage drop mile wahan connector, fuse holder, terminal ya wire jaanchein.
Practical Tip:
Voltage drop test kharab connection pakadne ka bahut upyogi tarika hai.
Practical Checklist
Main fuse/MCB dekhein.
Battery aur controller connector jaanchein.
Loose ya jale hue terminal dhundhein.
Negative/ground connection jaanchein.
Zaroorat padne par voltage drop test karein.
Safety First
Live high-current wiring par metal tool se short na karein.
Module Complete?
Checklist complete karne ke baad next module par move karein.
Training information is for general diagnostic learning. Always follow the vehicle and component manufacturer's specifications.