Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.
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We are having a 2000KVA DG set. It trips with Over speed and Engne Hot when the mahine is stopped in full speed. How shall I analyse the block load and reverse power.Is the problem related to power factor. The machine which runs on this DG is having all Synchronous motors with incividual Drives.
can we run the home fan both clock and anticlockwise direction
why ct output is in 5A?
How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.
how can decide the current rating of oltc
Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??
in CNC reference how to take? what kind of input give to the servo amplifier?
Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?
What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?
what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?
what are the stresses in circuit breakers ?
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.
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