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Answer Posted / jithendra adusumilli
all the controls (VCB's & protections relay) will be on DC
When the AC supply is off then for identification of the VCB's & control will very easy it means heart of the Control
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write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
How to assume answer to electrical questions
Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.
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