— The process in more detail —
~ The initial physical measurement & analysis is for the purpose
of identifying anomalies, & modeling the general characteristics
of the electrical loads & distributions in a facility. From this
information, both the impedance (Z factor) of the system and the
X/R ratio are determined.
~ X being the reactance of the system and R being the resistance
of the system. From that, we are able to point out the areas in
your plant where energy is being wasted and equipment destroyed.
~ This process requires a fully certified electrician to measure
at the main entry transformer(s), Bussbars or Switchgear.
~ If mechanical risers are not available, then arrangements can
be made to obtain this information another way.
~ If the power distribution diagram is also not available then a
generated diagram can be provided.
— For an accurate report of savings & ROI, the following
criteria/data are required —
1. Plant operations must be equal to or greater than 70% of
normal operation at the time measurements are taken.
2. Access to the main secondary transformer is preferred for
ease of access and to obtain the KVA & primary/secondary
voltage rating, impedance, configuration & other data.
3. Copies of the last 12-months electric bills. The monthly
total charge is not sufficient. The engineering analysis
we perform, incorporates the actual KWH consumed, the
energy charge, KWD, KWD charges, and any discounts.
4. If Power Factor Correction Capacitors are installed, we
require a list of where they're installed, the type, and
the sizes in KVAR.
5. Number and total of transformers on each electric bill.
6. Is power metered on primary side or secondary side.
7. Site plan of electrical system, if available.
8. Hours of Operation; This referes to the calculation for
the adjusted hours of continuous normal operation of the
electrical load, reflecting % in operation, in terms of
hours per week, per location.
— The following are not required, but are helpful in the process —
1. Explanations of any unscheduled operating changes for the
past year from normal yearly cycle/operations.
2. Details of any future changes to normal plant operations,
such as, expansion, product changes, cutbacks, etc.
3. List of known problems in the electrical system, such as
surges, harmonics, unusual breakdowns & failures of all
types of equipment or machinery, etc.
4. The estimated % of DC load related to normal total load.
5. Notification of variable frequency drives & SCR controls.
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