in one substation we have two power transformers of 100mva,75mva capacity.statoin load is155mva.how much each tranformers share the load????
6 11298for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?
1 4799we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain
2225what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
2381i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected
2274can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. .
1 3713Post New TNEB Tamil Nadu Electricity Board Interview Questions
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We are facing the problem of communication failure between seimens drives and ABB DCS. Between drives and DCS on RLM -01 module for communication purpose. We found red blinking i.e error blinking in RLM -o1 module. So we replaced with new one but after one month same problem again came. So again we installed old RLM-01 module. Now also RED blinking is coming but sometimes drives are not tripping. What will be the cause for this problem?
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