@Gyaan electrical please tell me the answers of some questions regarding VCB 1. IR value kis condition mein jyaada hogi a) in open condition pole to pole) in close condition phase to phase c) in close condition phase to earth. 2. Winding resistance kis coil ka jyaada aur kiska kam hoga A) closing coil B) Tripping coil C) spring mechanism motor ka resistance 3) hamko CRM test kab karna chahiye as per standard aur iske ilaawa aur koi instrument hota hai jis se hum contact resistance test kar sake 4) kya hum timing test kit ki closing aur Tripping probes directly coil par de sakte hain.
1. Both should be in Gohm 2. Tripping and closing coil resistance are same and spring motor ka resistant apko last PM ke sath compare karna padega 3. No CRM kit se hi hum accurate resistance le sakte he 4.yes direct control block vcb ma lagta he vaha PE direct de sakte he..
