Interested to Buy Any Domain ? << Click Here >> for more details...
what is the step by step formula for calculating bus bar
phase and neutral size of a panel board.suppose the incomer
of panel board is 100A..???step by step answer please
- 1 Answers
- 3772 Views
- I also Faced
- E-Mail Answers
Answer Posted / rajendra.s
It depend on which metal you are using copper/aluminum.
& it also depends on density.
to calculate busbars multipy cross sections.
For AL if density is 0.7/1A
Eg.for 100A incomer density .7 busbar is 20x10MM=140A.
with 1A density 10x10mm=100A
For CU standard density is 1.5/1.8A
From Rajendra Sawant
Miraj
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
WHY BREAKER ARE USED IN SUBSTATIONS?
HOW TO CALCULATE HV CABLE SIZING?
What is the application of Dyn1 and Dyn11 vector group of transformer?
hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u
what is inverter and converter
TRAFO 1. WHY BREATHER IS USED. 2. WHY OIL GOES DOWN IN CONSERVATOR TANK. 3. WHY WE ARE TAKING OIL SAMPLE TAKING FROM BOTTOM OF TRANSFORMER. 4. HOW TO CHECK IR VALUE OF TRANSFORMER. 5. WHY OLTC HAVING BUCHHOLZ TRIP ONLY; WHY NO ALARM. 6. OFF LOAD TAP CHANGER OPERATION PROCEDURE. 7. TR. SHUTDOWN / ISOLATION PROCEDURE. 8. WHEN THREE TRS. IN PARALLEL, ONE TR. IS NOT SHARING THE LOAD – WHAT IS REASON AND WHAT YOU WILL DO. 9. WHY TR. HAS OLTC IN HV SIDE. 10. WHAT IS % IMPEDANCE. 11. WHY TR. RATING IN MVA. 12. WHAT IS VECTOR GROUP IN TR. 13. CONDITION FOR PARALLEL OPERATION OF TRS. 14. WHAT IS TERTIARY WINDING. WHERE IT WILL BE. 15. IF TR. TRIP ON BUCHHOLZ OR TAP CHANGER RELAY, WHAT YOU WILL DO. 16. DIFFERENCE BETWEEN OIL TEMP. AND WINDING TEMP. PROTECTION 17. HOW WINDING TEMP. IS MEASURED IN CAST RESIN TR. 18. DIFFERENT TYPES OF FAULTS IN TR. Trafo - Page-1 of 2 19. WHAT HAPPENS WHEN TR. CHARGED FROM LV. 20. WHAT WILL YOU DO IF MEGGER READING SHOWS ZERO BETWEEN LV WINDING AND EARTH. 21. CAN WE INTERCHANGE BUCHHOLZ RELAY OF MAIN TANK AND OLTC TANK. 22. IF THE LINE BETWEEN BREATHER AND CONSERVATOR TANK 23. LOCKED, WHAT WILL HAPPEN DURING LOAD CYCLE. 24. WHAT IS THE FUNCTION OF OIL SEAL IN BREATHER. 25. WHAT ARE LOCATIONS FOR BUCHHOLZ RELAY FIXED IN POWER TR. 26. WHAT ARE CHECKS IN POWER TR. DURING MAINTENANCE. 27. WHAT IS IMPORTANT WHEN WE CHECK OLTC OPERATION DURING MAINTENANCE. Trafo - Page 2 of 2
Explain about 3 phase motor fault current calculation with examples?
How to calculate the sag of OPGW during stringing???
What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
what is the use of permanent magnet generator in exciter
What is a commutator?
What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.
Advantages of using generator circuit breaker (GCB) scheme in a power station ?
i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?
Why is the frequency not changed during transformation of electrical energy in a transformer?
