why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 Answers  

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what is at/cm ?

3 Answers  

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if power factor comes in leading & showing -0.95. Is there any effect on electrical system? if yes, then please tell me what would be the effects. & how long we keep power factor in leading. Keeping power factor in leading shows more KW & less KVA is it correct or not.

2 Answers   Jakson,

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Explain the working principle of Vacuum circuit breaker and Air circuit breaker

10 Answers   HP, Trinidad and Tobago Electricity Commission T TEC,

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How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.

0 Answers  

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what is the significant for using two types of voltage(line voltage & phase voltage)

1 Answers   NTPC,

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What is PCCB?

3 Answers   ICEL, Schneider,

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Why VL is more than the Vc?

2 Answers  

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After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.

2 Answers   Thermax,

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diff between synchronous gen and alternators

1 Answers  

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when a machine act as genartor and as motor?

2 Answers  

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it is possible to run 130V AC and 230 V AC cables run in same tray

2 Answers  

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