Question
Download Solution PDFWhere the voltages are high and current to be interrupted is low, the breaker preferred is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Vacuum circuit breaker: Vacuum circuit breakers are specially used for a low-cost switch having low fault interrupting capacity, but capable of a large number of load switching operations without maintenance and in some applications capable of interrupting the charging (or) capacitor current without restrike.
|
Circuit breaker |
Arc Quenching medium |
Rating |
Applications |
|
Oil CB |
Insulating Oil |
Up to 132 kV |
Used for interrupting high voltage |
|
Air break CB |
Air |
up to 15 kV |
Used for railway traction purpose |
|
Air blast CB |
Compressed Air |
245kV, 420kV or more |
Used in high voltage applications |
|
Vacuum CB |
Vacuum |
Up to 66 kV |
Used for interrupting low current at high voltage and remote and rural areas. |
Last updated on Jun 24, 2025
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