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Transcript
Sample Proposal HS-2014
“Insert Company Name”
“Company Location”
For
Electrical Harmonic Analysis and Survey
Prepared by
Franz Sparovic
Power Correction Systems, Inc.
1800 S. Robertson Blvd, PMB 419
Los Angeles, CA 90035
Tel.: (310) 247-4848 - Fax: (310) 273-7719
Website: www.activeharmonicfilters.com
January 2000
“Insert Company Name”
“Company Location”
Table of Contents
Page
1. Introduction
3
2. Scope
5
3. Process
6
4. Schedule
7
5. Requirements of Temco Fibers Company
7
6. Price
7
Power Correction Systems, Inc.
Sample Proposal HS-2014
2
“Insert Company Name”
“Company Location”
1. Introduction
Harmonic currents have been present in the electricity supply system for
many years. Initially the mercury arc rectifiers used to convert AC to DC for
DC variable speed drives in industry produced them. More recently the
range of types and number of units of equipment causing harmonics have
risen sharply, and will continue to rise. Modern electronic loads differ from
earlier electrical loads. Until recently, the most common loads found in a
facility were incandescent lights, standard speed motors, and heaters. The
transformers, switchgear, and wiring were designed to match the electrical
characteristics of these loads. However modern electronic loads do not
share the same characteristics and their impact on a facility distribution
system can be adverse. Equipment shutdown can be caused by a number of
events. As an example, the higher voltage peaks that are created by
harmonic distortion put extra stress on motor and wire insulation which
ultimately can result in insulation breakdown and failure. Harmonic distortion
disrupts plants. Of the greatest importance is the loss of productivity,
throughput and possibly sales. These occur because of process shutdowns
due the unexpected failure of motors, drives, computers, power supplies or
just the spurious tripping of breakers.
Grounding requirements have increased with the evolution of modern
electronic equipment. Ground was once used only as a fault current return
path. However modern electronic equipment uses ground for logic and
system reference as well for safety purposes. Performance of modern
electronic equipment is tied directly to the quality of the power distribution
system serving the equipment.
Large increases in the energy cost during the last decade have made energy
Conservation in the process industry vitally important. Typically, energy cost
represents the large component of a fiber plant operating cost. A number of
companies are seeking ways to reduce energy consumption, also to improve
the electrical power quality, and to operate their plants competitively and
profitably. Power Correction Systems has the technical expertise and
professional skills to increase the energy efficiency and improve the power
quality of existing plants.
Our engineers offer multi-disciplinary capabilities to manage the design,
construction, operation, and maintenance of energy facilities and systems.
They employ state-of-the art technology, combined with exceptional
analytical and technical expertise to help customers resolve today’s complex
energy and electrical power quality issues. The harmonic analysis and
survey is the first, and perhaps the most important step identifying and
solving, correcting and improving power problems.
Power Correction Systems, Inc.
Sample Proposal HS-2014
3
“Insert Company Name”
“Company Location”
Our integrated approach combined with resources and capabilities gives your
company the power to focus on your business and the competitive edge to
lead and innovate.
Potential benefits of an Electrical Harmonic Analysis and Survey:
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Reduced energy Costs
Elimination of high order harmonics
Elimination of lower order harmonics
Control of natural resonant frequencies
Improved load power factor
Voltage improvement and stability
Surge and transient protection
Reduced equipment failures
Improved energy efficiency
Increased production reliability
Reduce demand charges
Eliminate power factor surcharge
Reduce voltage unbalance
Increase life expectancy of motors and transformers
Reduce power line losses
Maximize plant distribution capacity
Effects of Harmonics
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Reduced efficiencies
Insulation damage
Capacitor failures
Pulsating torque’s in rotating machinery
Interference with communication, control and signal circuits
Maloperation of equipment
Increased operating temperature on equipment
Reduced capacitor life
Blown fuses
Increased copper losses
Source of Harmonics
Harmonic distortion is due to non-linear loads, i.e., loads in which the current
drawn is not proportionally related to the supply voltage.
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Switched mode power supplies (SMPS)
Electronic fluorescent lighting ballast’s
Variable speed drives
Power Correction Systems, Inc.
Sample Proposal HS-2014
4
“Insert Company Name”
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“Company Location”
Uninteruptible power supplies (UPS)
Magnetic-cored devices
Power converters and rectifiers
Transformer magnetization non-linearity
Electric arc furnaces
Induction furnaces
Electric arc welders
Industry Standard

IEEE Std 519-1992, “IEEE Recommended Practice and Requirements
for Harmonic Control in Electrical Power Systems” represents the most
recent effort to establish a standard level of acceptable harmonic
distortion levels on power system.
2. Scope
The following components will be included in the Electrical Harmonic
Analysis and Survey:

Power System Measurements and Data Collection
Power system measurements and data collection are typically taken at
various essential locations throughout the facility to enable the
accurate modeling of harmonic sources. This is required since the
theoretical addition of harmonics from a number of sources will not be
directly additive and could be considerably less. In addition to
harmonic measurements, voltage and load measurements are also
taken.

Harmonic Analysis
A harmonic analysis involves the use of computer programs to identify
and predict potential harmonic problems and mitigation techniques.
The study will also look at different operating points as well as system
Changes that might occur in the future.

Short Circuit Analysis
Power Correction Systems, Inc.
Sample Proposal HS-2014
5
“Insert Company Name”
“Company Location”
A short circuit analysis is used to calculate system fault current levels
to determine the interrupting and withstand adequacy of power system
equipment and associated protective devices.

Load Flow Analysis
A load flow analysis is conducted to predict power flow magnitudes,
power factor, voltage levels, and losses in branches of the system
based on the specified operating conditions.
3. Process
Power Correction Systems will conduct the electrical harmonic survey for the
“Insert Company”.
It will be complimented with the “Insert Company” sponsoring executive and
his assigned management contacts. Franz Sparovic will perform the survey
for Power Correction Systems.
The process will begin with an on site alignment and orientation meeting with
the people from “Insert Company” to establish clear understanding of the
process. This is essential in order to avoid misunderstanding at the operating
level of the organization.
During the onsite phase, the Power Correction Systems team will gather
information through structured records review, physical inspection, field
measurements, (may require assistance from “Insert Company” people)
and individual interviews.
Upon completion of the onsite phase, the Klima Technical engineer will return
to Greenville to assemble the findings, formulate recommendations and
implementation plan. A formal study report will be prepared and presented to
the “Insert Company”.
4. Schedule
For planning purposes the following schedule should be assumed:
Power Correction Systems, Inc.
Sample Proposal HS-2014
6
“Insert Company Name”
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“Company Location”
Program start-up & orientation
Onsite assessment
Final report preparation
Presentation, path forward and closure
Days
X
XX
XX
X
5. Requirements of “Selected Company”
The visibility and commitment of the “Insert Company” management team
is critical to the success of the project. The selection of the sponsor
therefore is extremely important. This sponsor should be a stakeholder in
the company, and well respected by its employees.
A set of contact points within each audit areas needs to be established. The
team will coordinate all activities in that area with this individual. Although an
important component of the team, the team is, demands upon this individual
will not unduly affect their ability to perform their normal duties.
A work area with telephone and support services will significantly improve the
team’s efficiency. It should be large enough to house the accumulated data,
and provide workspace for Power Correction Systems people.
If security clearance is required, we request that it be established upon
arrival. Additionally it is anticipated that the team will work through the
connecting weekend. I hope that access to the facilities can secure.
6. Price
Power Correction Systems will complete the energy engineering study / audit
for the lump sum price of $xxxxx US, plus travel and living (T&L) expenses.
T & L will be billed at cost.
Terms and conditions
The enclosed Power Correction Systems Agreement will govern our
participation.
Power Correction Systems, Inc.
Sample Proposal HS-2014
7
“Insert Company Name”
Power Correction Systems, Inc.
“Company Location”
Sample Proposal HS-2014
8