800a siemens vcb in our company can not be closed electrcally
an mechanicaly cc and oc coils are found ok. why?
Answer Posted / prakash gokhale
Please check for the mechanical assembly of the VCB. Some
times due to some misalighments breaker can not be closed
mechanical or electricaly even if CC & OC are ok.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
how can we change the phase angle b/w two phase?
Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.
What are the function of different components of servo motor?
What is difference between Over Current & Earth Fault protection?
Why computer humming sound occurred in ht transmission line?
Differentiate between voltage and current feedback in amplifiers?
How they LT panel busbar size choose
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
how we calculate the dick for a pole?
Pls mail me utility & Dg related question with answer
why ct ,cvt should be stored in a vertical position?
how many electricity poles are there and what are the names and their sizes.
We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?
What is the range of the stator resistance of 3 phase induction motor?