Answer / jim

ultrasonic waves

Answer / r_mujalde

Resonant waves

Answer / rajesh kumar

B. Ultrasonic wave

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

0 Answers  

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From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

0 Answers   Schneider,

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what effect on electrical equipment if PF is gone over 0.996 in leading when provider say that its keep in minimum 0.996lagging

3 Answers   ABB,

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The armature of shunt dc motor has 0.8ohm resistance and motor is to run on 120V circuit.If motor is suddenly thrown on circuit while armature at standstill then current drawn by motor will be??Also back emf in normal running is 110V

2 Answers  

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What are the disadvantages if neutral current exists in grounded star transformer distribution system?

1 Answers  

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what is the MF if CT ratio is 500/5 and in meter specification is 3.75 REVS/KWH? Thanks and Regards Selvendran.N

1 Answers  

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how do you tell if a avalanche button diode is a p or an

1 Answers  

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What are locations arc protection relay is fixed.

0 Answers   KSEB, L&T, Siemens,

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how to calculate micom relay earth falt time and current sertting

0 Answers  

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WHY IS wet surface used for grounding???

2 Answers  

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7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

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Earth has zero potential then what would be the neutral potential ?

0 Answers   JLL,

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