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Request for Proposal ol ‘fe a
23

Jackson Mills Date: Mar 12, 2019
+ Powering Business Worldwide
Revision: 0.0

1. INTRODUCTION

Eaton Corporation has a successful record of deploying turnkey hydro electro-mechanical
modernization projects spanning more than 50 years in government, utility and privately-owned
hydro-electrical facilities. We are well positioned with an experienced and committed team to
lead the Jackson Mills electrical modernization with a modern and cost-effective solution. This
skilled team will improve your ability to deliver quality power and improve the reliability and
functionality of pumping water and generating electricity.

Recently, Eaton Corporation has successfully automated a variety of systems in the power
generation and distribution industries. Notable projects include:

— Green Mountain Power, Little River Station: Repowering and modernization, including
exciters, governors, automation and protection systems

— Green Mountain Power, Ascutney Gas Turbine: Automation and excitation replacement

— Bureau of Reclamation, Shasta & Keswick: Excitation modernization

— Titan Americas: Plant Automation including SCADA, automation and protection systems

Eaton’s comprehensive technical proposal proves our ability to meet the requirements of the
specification, deliver on the goals of facility uniformity and maintain an aggressive, flexible
schedule through design and construction.

Eaton Corporation hereby offers to provide the services as detailed below, at the prices and on
the terms and conditions exclusively set forth in this offer.

1.1 EXECUTIVE SUMMARY

The following proposal and scope of work has been developed in response to the Request for
Quote and includes the design and procurement of the required protection and control
equipment associated with the Mavel supplied modern turbine-generator equipment. This
proposal assumes the new synchronous generator will be rated at 1226 kW, 4160 V.

To develop the most creative and cost-effective solution that meets the specification provided,
Eaton Corporation is providing a base price, with several options that either improve reliability,
decrease plant outage and downtime, or other recommended system enhancements.

1.2 PROJECT SUMMARY

The existing Jackson Mills Hydroelectric Generation Station is currently under review for
repowering. The scope of work outlined as part of this offer, is limited to the electrical and
control system as part of the repowering and based on the turbine-generator data provided by
Mavel and referenced as part of this offer.

2. ENGINEERING SERVICES SCOPE OF WORK

Eaton proposes to upgrade the Jackson Mills Station using an integrated approach. The basis
for every successful project is sound engineering and design as well as flawless execution.

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation. 4 Pp a
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited. | g €

Request for Proposal PS “T ie
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Jackson Mills Date: Feb 25, 2019 . &
aes Powering Business Worldvade
Revision: 0.0 BA

Eaton’s Generator Protection & Control Group has extensive experience integrating the latest
technologies and systems into a comprehensive and complete design package. Detailed
design drawings specific to each project are developed to provide an integrated drawing set for
all systems and subsystems within the facility, affected by the scope. When required, old
drawings are re-drawn and verified vendor equipment drawings are integrated into an overall
drawing package. Standard borders and drawing numbers provide a seamless cross reference
for all interconnected systems within the facility.

2.1 DRAWINGS

As part of this offer, Eaton Corporation is including engineering drawings of the protection and
control system. All drawings shall be provided in AutoCAD format per industry standards,
Professional Engineer stamping is not required. Drawing submittals and subsequent approvals
shall be provided per the following outline:

— Review Set (Schematics Only)

— For Fabrication (Custom Control Panels, Field Devices, etc.)
— For Construction (To Be Maintained by On-Site Contractor)
— Red-Lines (Copy to be Maintained On-Site)

— Record Drawings

The drawing package below shall be a complete and functional set of drawings for the entire
facility. All drawings from equipment vendors shall be updated and completed with the entire
system information. The drawing package below outline the minimum number of drawings
included as part of the document package.

— AC Metering & Relaying One-Line Diagram

— Network Architecture & Communications Diagram
— AC Three-Line Diagrams

— Breaker/Contactor Control Schematics

— Protective Relaying Schematics

— PLC I/O Diagrams

— Demolition Details

— Cable & Conduit Schedules

— Panel Fabrication & Wiring Diagrams

— Interconnection & Termination Details

2.2 STUDIES & CALCULATIONS

As part of this project, Eaton Corporation proposes the integration of Schweitzer Engineering
Laboratories 700G Generator Protection Relays for the Generators, one each. All protective
relay settings are provided as part of this offer.

2.3 SYSTEM INTEGRATION

This offer includes a comprehensive and integrated automation upgrade for the Jackson Mills
Hydroelectric Generation Station. Eaton Corporation proposes to design, supply and

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation. 2? | i a g e
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited

Request for Proposal = ‘ | of
wm

Jackson Mills Date: Mar 12, 2019
+s Powering Business Worldvide
Revision: 0.0

commission a complete and fully functional generator protection and control package to include
both manual and automatic control modes.

2.3.1 Programmable Logic Controller (PLC)

The PLC will be responsible for overall unit condition monitoring and sequencing. The
principle functions of the PLC include:

— Unit Start Sequencing & Start Permissive Monitoring
— Unit Stop Sequencing

— Unit Mechanical Protection (Alarm, Shutdown & Trip)
— Unit Voltage & Power Factor Control

— Unit Gate Position Control

— Unit Load Control

— Unit & Station Water Level Management & Control

— Automatic Unit Dispatch Control

— Unit & Station Monitoring & Alarm Conditioning

— SCADA System Integration & Point of Control

2.3.2 Human Machine Interface (HMI)

Eaton Corporation's offer includes the programming integration of a comprehensive HMI for
station and unit control and monitoring. The Maple Systems HMI will be responsible for all
station and unit alarm annunciation and logging. The HMI graphics will be developed to
match other owned facilities for operator familiarity.

2.3.3 Voltage Controllers

The new generator (supplied by others) shall be equipped with a brushless excitation
system. As such, it is our recommendation, that our protection and control system include a
Basler DECS 250 voltage regulator. This voltage regulator will be integrated as part of a
standalone turbine control system.

2.3.4 Network Architecture

This solution incorporates high quality, reliable components to provide the Jackson Mills
Hydro Electric Facility with a long lasting cost-effective solution. The hardware listed below
will be incorporated into the turbine control enclosure. The overall strategy is to provide an
automation solution that incorporates modern intelligent devices with existing manual
controls in a seamless package. This strategy significantly decreases the field support
required for the upgrade as much of the existing field wiring will not be touched. I/O is
connected to the central processor over a high-speed copper ethernet based connection
using Allen Bradley’s Ethernet IP protocol.

2.4 TESTING, STARTUP & COMMISSIONING

Testing is limited to individual hardware and components as part of the larger system. The
entire system commissioning is excluded from this offer.

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation.
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited.

3|Page

Request for Proposal Ee: i of

Jackson Mills Date: Feb 25, 2019
a Powering Business Worldwide
Revision: 0.0

The following outlines the testing, startup and training deliverable items:
— Factory Acceptance Written Testing Plan
— Instrument Transformer Testing
— PLC I/O Verification
— HMI Testing
— Relaying & Metering Communication Verification
— OEM & Operations Manuals

3. EQUIPMENT SCOPE OF SUPPLY

Included in the base proposal, and in an effort to optimize the plant floorspace, Eaton
Corporation proposes to integrate the new turbine-generator protection and control system with
the medium voltage switchgear.

3.1 SWITCHGEAR

The proposed switchgear will include all necessary protection and control equipment to safely
operate the unit. The Eaton Metal Enclosed, Medium Voltage, Front Access (MEF) Switchgear
includes:

1 1200 A, Insulated Main Bus, 5kV, 25kAIC

4 Cell, 5kV, 1200 A

1 Eaton VCP-T 1200 A Vacuum Breaker, 25kAIC, 3 Cycle Interrupting

6 ABB Current Transformer, Single Ratio, High Accuracy (Metering/Protection)

Sized to Match Generator Neutral Current Transformer (Differential)

4 ABB Voltage Transformer, 5kV (Metering/Protection/Synchronization)

1 Breaker Trip Coil, 125 VDC

1 Breaker Spring Release (Close) Coil, 125 VDC

1 Breaker Charge Motor, 125 VDC

AIR MOC & TOC Status Switches

A/R Heater & Thermostat Assembly

1 Closed Door Racking Assembly & Breaker Lift Mechanism

3.2 MANUAL USER INTERFACE

The manual user controls requested as part of the specification will be integrated into an
additional section of the MEF Switchgear. The hardwired protection and control circuits include
the following devices:

Speed Relay with Digital Display & Speed Switches (Overspeed)
Eaton PXM Multi-Function Power Meter

Analog Frequency Meter

Analog Voltage Meter

Analog Synchroscope Meter

Emergency Stop Push Button

Governor Raise/Lower Control Switch

Voltage Regulator Raise/Lower Control Switch

Generator Breaker Control Switch

a A A oP) | oS oo

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation 4 | Pa ge
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited

Request for Proposal - “T ol
FN

Jackson Mills Date: Mar 12, 2019 —
_ Powering Business Worldwide
Revision: 0.0 |

1 Unit Start/Stop Control Switch
1 SEL-700G Generator Protection Relay
1 Lockout Relay

3.3 NETWORK ARCHITECTURE

The heart of the Automation System is the Programmable Logic Controller (PLC). For this
project, Eaton Corporation proposes the Rockwell Automation CompactLogix platform by Allen
Bradley. The Rockwell Automation Plant Automation Controller (PAC) is the preferred solution
for turbine control systems. All Logix controllers operate with a multitasking, multiprocessing
operating system and support the same set of instructions in multiple programming languages.
The CompactLogix environment offers different levels of redundancy that can be designed into
each system. For this project, the selected CompactLogix process system works with in-rack
and/or remote I/O, drives, operator interfaces, relays, meters or any other devise that can
communicate with a CompactLogix controller over an Ethernet link.

The Rockwell Automation CompactLogix platform included as part of this project features the
latest version of processor and required I/O. Included as part of this offer, is the I/O proposed
based on the project specification as well as our experience. A minimum amount of spare I/O is
included as part of this offer.

The Human Machine Interface (HMI) will be a Maple Systems 15” Touch Screen HMI,
communicating with the Allen Bradley PLC over Ethernet Communications. The switchgear
mounted HMI will perform all necessary annunciation, alarm logging and control functions to
safety and efficiently operate the unit.

The existing Allen Bradley controller (Crest Gate & Compressor) will be integrated into the unit
and station control system, for a seamless control architecture. All thermal and mechanical
monitoring equipment (RTDs, Vibration Sensors, etc.) shall be connected directly to the PLC for
proper logging, annunciation and unit protection.

Eaton Corporation’s offer includes the installation and integration of single Eaton Power Xpert
Multi-Function Meter and will be polled by the CompactLogix PLC across a new Ethernet
network. Electrical metering parameters will be displayed on the HMI.

The existing SCADA network will be reworked and integrated into the new plant control system.

3.4 PROTECTIVE RELAYING & AUTO SYNCHRONIZING

Eaton Corporation has evaluated several different options relating to the protection and
synchronizing schemes, including dedicated auto synchronizers and protective relays. It is our
recommendation, based on economics, reliability and ease of installation, to proceed with the
installation of a Schweitzer Engineering Laboratory 700G Generator Protection Relay. Relay
settings development, testing and final documentation are included as part of this offer. In
addition, the protection functions requested as part of the RFP (listed below) will be included in
the SEL 700G. The PLC will poll these relays to provide appropriate targets during trip events.

25A — Automatic Synchronizing

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation 5 | P a e
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited, g

Request for Proposal a ‘ : ely
=

Jackson Mills Date: Feb 25, 2019
ae Powering Business Worldwide
Revision: 0.0

27 — Under Voltage

32 — Directional Power Relay (Reverse Power)
40 — Loss of Field

46 — Negative Sequence

51V — Over Current (Voltage Restrained)

59 — Overvoltage

64S — Stator Ground Detection (59N)

81 — Over / Under Frequency

87G — Generator Differential

3.5 BALANCE OF PLANT

3.5.1 Field Instrumentation

The control system offered as part of this proposal, includes the integration of all new and
existing field instrumentation.

3.5.2 DC Battery System

Included in this offer is a new protection and control battery system, including 103 AH, Lead
Calcium Battery Bank, 2 Tier Rack, Spill Containment, 240 VAC Battery Charger, and fused
isolation disconnect.

3.5.3 Station Service

It is likely that the station service equipment, including lighting, HVAC, hydraulics, etc. will
require some level of attention, with the plant repowering and reconfiguration. As it is
difficult to determine the scope required at this time, the engineering, procurement and
construction activities associated with this equipment is not included as part of this offer.

4. INSTALLATION AND REMOVAL SERVICES

4.1 INSTALLATION SERVICES

At this time, construction and installation services are excluded.

4.2 DEMOLITION & REMOVAL

At this time, demolition and removal services are excluded.

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation. 6 | p a g e
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited

13.

14.

15.

16.

any negligent act, omission, or fault or willful misconduct, whether active or passive, of
Professional Engineer or of anyone acting under its direction or control or on its behalf in
connection with or incidental to the performance of this contract. Professional Engineer’s
indemnity and hold harmless obligations, or portions thereof, shall not apply to liability
caused by the sole negligence or willful misconduct of the party indemnified or held
harmless.

FISCAL CONTINGENCY All payments under this contract are contingent upon the
availability to the City of Nashua of the necessary funds. This contract shall terminate and
the City of Nashua's obligations under it shall be extinguished at the end of any fiscal year
in which the City of Nashua fails to appropriate monies for the ensuing fiscal year sufficient
for the performance of this contract.

Nothing in this contract shall be construed to provide Professional Engineer with a right of
payment over any other entity. Any funds obligated by the City of Nashua under this
contract that are not paid to Professional Engineer shall automatically revert to the City of
Nashua’s discretionary control upon the completion, termination, or cancellation of the
agreement. The City of Nashua shall not have any obligation to re-award or to provide, in
any manner, the unexpended funds to Professional Engineer. Professional Engineer shall
have no claim of any sort to the unexpended funds.

COMPENSATION Review by the City of Nashua of Professional Engineer's submitted
monthly invoice forms and progress reports for payment will be promptly accomplished
by the City of Nashua. If there is insufficient information, the City of Nashua may require
Professional Engineer to submit additional information. Unless the City of Nashua, in its
sole discretion, decides otherwise, the City of Nashua shall pay Professional Engineer in
full within 30 days of approval of the submitted monthly invoice forms and progress
reports.

COMPLIANCE WITH APPLICABLE LAWS Professional Engineer, at all times, shall fully and
completely comply with all applicable local, state and federal laws, statutes, regulations,
ordinances, orders, or requirements of any sort in carrying out the obligations of this
contract, including, but not limited to, all federal, state, and local accounting procedures
and requirements, all immigration and naturalization laws, and the Americans With
Disabilities Act. Professional Engineer shall, throughout the period services are to be
performed under this contract, monitor for any changes to the applicable laws, statutes,
regulations, ordinances, orders, or requirements, shall promptly notify the City of Nashua
in writing of any changes to the same relating to or affecting this contract, and shall submit
detailed documentation of any effect of the change in terms of both time and cost of
performing the contract.

NONDISCRIMINATION If applicable or required under any federal or state law, statute,
regulation, order, or other requirement, Professional Engineer agrees to the following
terms. Professional Engineer will not discriminate against any employee or applicant for
employment because of physical or mental handicap in regard to any position for which
the employee or applicant for employment is qualified. Professional Engineer agrees to
take affirmative action to employ, advance in employment, or to otherwise treat qualified,
handicapped individuals without discrimination based upon physical or mental handicap
in all employment practices, including but not limited to the following: employment,

GC 8 of 13

Request for Proposal Ee: ; any

Jackson Mills Date: Mar 12, 2019
iii Powering Business Worldwide
Revision: 0.0

Comparable
Experience

Graham, Project Manager

an Peacock, Lead Engineer
Yenter, Governor Design

ike Wagner, UCB / Relays
Tardif, UCB Fabrication

rain Doane, Lead Designer

Wick, Programming

Relay Systems

New York Power Authority Lewiston Pump Generator

GMP Proctor 5 Units

USACE Phi Powerhouse e
Bayonne Energy Center Blackstart Breaker Control

ne Power Control Enclosure
Black Bear ° Excitation (1
Black Bear o Milford Relay U 4 Units
Black Bear Orono B 3 Units
Black Bear Stillwater B Units
Brookfield Renewable Power Glenn Ferris
B Electric GT Excitation (1 Uni
Cal Unit 2 Excitation (1 Unit

Creek Renewable Rio Unit 3 (1

Eversource Canaan PLC U

Eversource Garvin Falls
Eversource Gorham ro PLC rade

Ss ous Condenser Conversion U1,2,3
Grand Coulee Main Canal/Summer Falls
GMP Bolton Falls U e (2 Units
GMP Center Rutland 1.Un
GMP Clark Falls
GMP 18 1 Unit
GMP Hunti Modernization (3 Units
GMP ronous Condenser
GMP Marshfield ro Electrical Pro
GMP Taftsville U 1Un
Lower Neches V. Devers P Station #2

Massachusetts Water Resources Oakdale ro

© 2019 Eaton Corporation. This submittal contains material which is Proprietary and Confidential to Eaton Corporation. 7 | P
It may only be used to evaluate and respond to this proposal. Unauthorized use and/or disclosure is strictly prohibited. a g e

Appendix F

Production and Delivery Schedule

Months to
Complete

1 Milestones
otice to Proceed
of Contract
Parts Des
ofS and Submittals For Manufacture
Purchase of Materials
nufacture Turbine Parts
Assembly & Ti of Turbine
of Turbine Parts to Site
Generator
of Generator
Gearbox
of Gearbox
Electrical Balance of Plant E
of Electrical Balance of Plant
Ti and
Train
of Contract Closeout Submittals and O&M Manual

2 Notice to Proceed

3 and Technical Information
Parts
Preliminary Electrical and Control
urbine Detail
Governor Data
of & Submittals for Manufacture
|Documents

4 Procurement / Manufacturing / Ti
1 Order Turbine Materials
.2 Turbine Manufacturi
4,3 Turbine andT
4.4 Order Generator
.5 Manufacture and Test Generator
4 Controls and Electrical
.5 EBOP Fabrication
4.6 Order Gearbox
4.7 Gearbox Production

of to Site
Turbine
Generator
Controls and Electrical

6 Installation Su and Com
.1 Turbine and Generator Installation
.2. Controls and Electrical Installation
.3 Commissioni
4 Traini

7 com
.1 Substantial
.2 Final

Notes:
TBD - To Be Determined

Work
Completion
Milestone

Milestone date

Months from Notice to Proceed

6

7

8

9

10] 11] 12} 13] 14