1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?

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In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

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What's ND relay & it's functions?

2 Answers  

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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in ceiling fan and table fan what is the rotating part and what is the stationary part?

5 Answers  

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Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 Answers  

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Difference between RCCB, RCBO and ELMCB.

0 Answers   Megatron Solutions,

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In Fluorescent tube there is a writing like 6500k . what this 6500k represents?

4 Answers  

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what is buscoupler adopter panel????

5 Answers  

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what is the design voltage for 6.6KV 2000 KVAR HT capacitor?

1 Answers  

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how can decide the current rating of oltc

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we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

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