Interested to Buy Any Domain ? << Click Here >> for more details...
what is the range of using dol starter & star delta
starter.
- 10 Answers
- 48718 Views
- I also Faced
- E-Mail Answers
Answer Posted / prakash suhane
There is no hard N fast rule which state the range of star
delta and DOL starter, we have to keep in mind fallowing
points during configuration of DOL starter.
1) Motor should not be of very high rating.
2) Starting torque (reqd to start motor)is not very high.
apart from above case we should use star delta starter.
| Is This Answer Correct ? | 25 Yes | 6 No |
Post New Answer View All Answers
i am completed my degree(B.E EEE) 2014 anychance to get electrical licence plz help me
Can RCD's used to protect the VVVF drive if not why.
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
What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
l&t switch FN 63 handle position can we change
why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A
Why the standard of ambient teperature mentioned as 40 degree celcius in machines.
What is ideal IR values for ground and neutral.
what is the purpose that we use PLC system in power system
Mention how NPN and PNP transistor works?
What are m circles?
how a flip flop can be used as a latch?
can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?
Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?
