Explain clearly the three positions in 415 V breaker.

Explain clearly the three positions in 415 V breaker. 
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1 Answer

Answer :

a. Service position: Power connections and control connections are available to the

breaker.

b. Test position: Power connections are cut off but control connections are available

to the breaker and it can be tested.

c. Disconnect position or rack out position: This is for maintenance of the breaker

and in this positions both the control and power connections are not available. 
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Related questions

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What are the interlocks between 415 V and 6.6 kV switch gear?

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Explain the working principle of the circuit breaker

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How serious is a triglyceride reading of 415 in a senior?

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Last Answer : ANSWER: C

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Last Answer : ANSWER: C

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Last Answer : ANSWER: C

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Last Answer : [ A ] 0.12 percent of gross cross sectional area

As per IS: 1139, permissible stress in compression steel reinforcement for High Yield strength deformed bars is [ A ] 140 N/mm2 [ B ] 190 N/mm2 [ C ] 230 N/mm2 [ D ] 415 N/mm2

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