“Insert Company Name” “Company Location”

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:

January 2000

Table of Contents

Page

  1. Introduction3
  1. Scope5
  1. Process6
  1. Schedule7
  1. Requirements of Temco Fibers Company7
  1. Price7
  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.

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:

  • 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

  • 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.

  • Switched mode power supplies (SMPS)
  • Electronic fluorescent lighting ballast’s
  • Variable speed drives
  • 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.
  1. 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

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.

  1. 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”.

  1. Schedule

For planning purposes the following schedule should be assumed:

Days

Program start-up & orientation X

Onsite assessment XX

Final report preparation XX

Presentation, path forward and closure X

  1. 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.

  1. 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.

1

Power Correction Systems, Inc. Sample Proposal HS-2014