Interested to Buy Any Domain ? << Click Here >> for more details...
What is the basic principle of circuit breaker?..
I read that it works on electro-mechanical principle...
Does it require both electric n magnetic conversion to act?
- 3 Answers
- 6262 Views
- I also Faced
- E-Mail Answers
Answer Posted / jairaj shetty
a circuit breaker , in its simplest form is a thermo
electric device . when the rated current is exceeded , the
thermal device , made up of bimetallic strip heats up and
bends , thus tripping the mechanically spring loaded
switch .
the other form of electro magnetic circuit works by
activating a magnetic relay instead of a bi metallic trip
device .
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
what is meant by 3rd hormonics ?
In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.
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 capacitance?
How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.
In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because
Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
what is the transiant condition in alternator? and how it can be prevanted?
HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?
What is the difference between line drop and percentage line drop?
I want definition for ABT Meter (Availability Based tariff) ?
How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?
When lag/lead/lag-lead compensation is employed?
