Case Study – 3
National Cable Factory is one of the leading manufacturer of
Medium Voltage power cables (MV Cables) and Low Voltage power
cables (LV Cables) in Oman. The market demand survey conducted by
the company found that the minimum demand per week for MV cables is
30 and the minimum demand for LV cables is only 10. MV cables
requires five production hours and five skilled labour hours to
produce one unit whereas LV cables require three production...
Q1 ) Nutrient broth is referred to as a general
purpose medium. Explain what is meant by this
statement.
When considering your answer, you
may wish to consider what substance nutrient broth is prepared from
in addition to the further information about microbiological growth
media on pg. 45 of the practical manual.
page 45 => Bacterial
growth media – nutrient broth
The medium used in this practical session to study the growth of
bacteria is a liquid medium termed nutrient...
Under ground, l-length high voltage power cable
the radius a of the conductive wire inside is the radius of
the outer cylindrical lead conductive coating b. Between
conductors
the cylindrical area is filled with silicone-plastic
insulator. Q load uniformly on l conductor wire
It is scattered. (Consider the thicker shape of the television
antenna cable.)
a) Electric field in r <a region and in a region between a
<r <b with the help of Gauss's law,
b) Conductive lead outer...
EXPLAIN ANSWERS PLEASE
The electric field intensity in a source-free, dielectric medium
is given as ? = 2?0 sin(??) ??????̂ V/m.
Determine
(a) the magnetic field intensity using Maxwell’s equation from
Faraday’s law, and
(b) the displacement current density in the medium.
Discuss the design, construction and installation of
both solid and oil-filled high voltage cablee, and describe the
techniques which may be used to minimise sheath losses in such
cables. Indicate the limitations of conventional cables for bulk
power transmission.
Explain the principle
and construction of a hydrometer. What is the purpose of the common
measurements of the specific gravities of an automobile’s radiator
coolant and battery electrolyte?
Explain the importance of the planning process:
understanding the readers, purpose, context, and delivery medium
(online or on paper)of instructions and procedures.
please explain in detail in one page UPS(uninterrupted power
supply ) redundancy impact on cable dimension and Automatic
transfer switches.in power design.