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The following statements associated with Buchholz relays is not true:
- a)It is a gas actuated device
- b)It is a current operative device
- c)It is placed between the transformer tank and the conservator
- d)It causes alarm for minor fault and tripping for major fault
Correct answer is option 'B'. Can you explain this answer?
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The following statements associated with Buchholz relays is not true:a...
- The Buchholz relay protects the transformer from internal faults
- It is a gas actuated device
- It is placed between the main tank and the conservator
- It is used in the transformer having the rating higher than 500 KVA
- It causes alarm for minor fault and tripping for major fault
Most Upvoted Answer
The following statements associated with Buchholz relays is not true:a...
Buchholz relays are protective devices commonly used in power transformers to detect and respond to internal faults. They are designed to provide an early warning for minor faults and to initiate tripping for major faults in order to prevent further damage to the transformer. Let's examine each statement associated with Buchholz relays and determine which one is not true.
a) It is a gas actuated device:
- This statement is true. Buchholz relays are gas actuated devices that operate based on the detection of gas produced by internal faults within the transformer. When a fault occurs, such as insulation failure or the presence of combustible gases, the generated gas accumulates in the relay, causing it to actuate.
b) It is a current operative device:
- This statement is not true. Buchholz relays are not current operative devices. Instead, they are gas operative devices, as mentioned earlier. The relay operates based on the accumulation of gas, not the flow of current.
c) It is placed between the transformer tank and the conservator:
- This statement is true. Buchholz relays are typically installed in the piping connecting the transformer tank and the conservator. This positioning allows the relay to detect faults occurring in the transformer's main tank or the oil-filled conservator.
d) It causes an alarm for minor faults and tripping for major faults:
- This statement is true. Buchholz relays are designed to provide two levels of protection. For minor faults, the relay triggers an alarm to alert operators or maintenance personnel. This allows them to investigate and address the issue before it escalates. For major faults, the relay initiates a tripping action to isolate the transformer from the power system, preventing further damage.
Therefore, the statement that is not true is option 'B', which states that Buchholz relays are current operative devices. In reality, they are gas operative devices that detect faults based on the accumulation of gas.
a) It is a gas actuated device:
- This statement is true. Buchholz relays are gas actuated devices that operate based on the detection of gas produced by internal faults within the transformer. When a fault occurs, such as insulation failure or the presence of combustible gases, the generated gas accumulates in the relay, causing it to actuate.
b) It is a current operative device:
- This statement is not true. Buchholz relays are not current operative devices. Instead, they are gas operative devices, as mentioned earlier. The relay operates based on the accumulation of gas, not the flow of current.
c) It is placed between the transformer tank and the conservator:
- This statement is true. Buchholz relays are typically installed in the piping connecting the transformer tank and the conservator. This positioning allows the relay to detect faults occurring in the transformer's main tank or the oil-filled conservator.
d) It causes an alarm for minor faults and tripping for major faults:
- This statement is true. Buchholz relays are designed to provide two levels of protection. For minor faults, the relay triggers an alarm to alert operators or maintenance personnel. This allows them to investigate and address the issue before it escalates. For major faults, the relay initiates a tripping action to isolate the transformer from the power system, preventing further damage.
Therefore, the statement that is not true is option 'B', which states that Buchholz relays are current operative devices. In reality, they are gas operative devices that detect faults based on the accumulation of gas.
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The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer?
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The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer?.
The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The following statements associated with Buchholz relays is not true:a)It is a gas actuated deviceb)It is a current operative devicec)It is placed between the transformer tank and the conservatord)It causes alarm for minor fault and tripping for major faultCorrect answer is option 'B'. Can you explain this answer?.
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