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Explain procedure to take shut down and to test the power line before starting work?
Ans: Study the circuit and find out the circuit breaker to be opened. Open and lock the circuit breaker and take the key in personnel custody. Disconnect neutral link if available. Hang "Man at Work" notice board on the circuit breaker. Test for supply after making sure that, the testing device itself is OK at the line or equipment . Start the work.
Q. Working of self - excited generators? For self-excited generators, residual magnetism must be present in the ferromagnetic circuit of the machine in order to start the self-
Why we provide the short circuit and open circuit test in transformer
Discuss in detail about pulse broadening in graded index waveguide ? Intermodal dispersion within multimode fibers is minimized along with the use of graded index fibers, ther
Comparison of Analog-Modulation Systems The comparison of analog modulation systems (conventional AM, DSB SC, SSB SC, VSB, FM, and PM) can be based on three practical criteria:
Module of the rated currents - transformer: The transformer of the Face(Figure) 2 is a transformer of type Delta-Y (the neutral of Y is grounded). The rated output is of 1500
Properties of Conductors and Insulators: This unit provides the basic characteristics or properties of the most common materials which are classified as semiconductor, conduct
Q. Determine the voltages V x using voltage division and equivalent resistor reductions for the circuits shown in Figure.
Explain Soft ferrites and their applications. Soft ferrites and their applications: Such are non- metallic compounds having ferric oxide and one or two bivalent metal oxides as
Q. A two-winding system has its inductances given by where k 1 and k 2 are constants. Neglecting the winding resistances, derive an expression for the electric force when
Description of Capacitor r A capacitor has capacitance of one Farad when current charging of one Ampere flows in one second. This process causing a transferring of one volt in p
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