Answer / wareagle

You are not required to use 125% for motors. The NEC says
that the breaker rating can be up to 250% of the motor FLA.

why we use REF and Differential Protection in one transformers?my doubt is both protections are operated in internal fault only.why we want to use 2 protections?please clarify.

7 Answers  

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what is stalling of a motor?

2 Answers   BTCL,

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What is the difference between grounding & earthing?

9 Answers  

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How is operate breaker failure scheme in substation

0 Answers  

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what is the difference between earth and unearth cable?

1 Answers   Essar,

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what is the size of ht cable of 33kv ht line and transformers ratings are 2.5mva and 5.5mva.please send formula also.

1 Answers  

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What is the difference between single phase, 2phase, and 3 phase motors?

2 Answers  

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According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?

0 Answers  

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what is sevice settings for mccb?How can be it setted?

0 Answers  

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what is power and what is watts detailed description and formulas

2 Answers  

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how much load should be given on 5 mva transformer

7 Answers   NTPC, OHPC, Power Grid,

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Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers  

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