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121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1 617 242 2205

www.mavel.com

Technical Data for Hydraulic Turbine

The prototype turbine shall be designed for a maximum hydraulic capacity of approximately 800 cfs at 21 feet of net head. The
net head on the turbine shall be defined as Hn per IEC Standard #41-1965, Page 17.

The Vendor shall provide the following specific technical data for the proposed turbine.

Runner Diameter (MM) 1800
Number of Runner Blades 4
Rated turbine speed at 19.9 foot net head (RPM) 240
WR2 of turbine rotor (Lb-Ft?) 284400
Combined WR? of all rotating components (Lb-Ft ) 299120
Is the WR? of the unit sufficient for isochronous operation (yes or no) no
Maximum guaranteed runaway speed at 21 foot net head (RPM) 714
Maximum guaranteed turbine power at 21 foot net head (KW) 1127
Minimum turbine discharge at 18.8 foot net head (CFS) 191
Minimum guaranteed turbine power at 18.8 foot net head (KW) 304
Minimum turbine discharge at 21 foot net head (CFS) 224
*Turbine shaft centerline setting (METERS +) above or below minimum tailwater +0.61m
Minimum permissible wicket gate closing time under normal conditions (seconds) 60s
Minimum permissible wicket gate closing time under full load rejection seconds 605

Vendor Alternative Turbine Settings & Guaranteed Maximum Turbine Power

Maximum pressure rise in turbine water passage under full load rejection 21 foot net head (FT.H20) 6
Maximum turbine speed rise under full load rejection conditions (%) 125
Maximum turbine oil and bearing temp, rise under max. runaway speed condition for 60 mins (°C) 75

Project No. 0-29029.Rev.3 www.mavel.com Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

www.mavel.com

4.4 Guaranteed Turbine Performance Data

Turbine unit speed ni1 167.27
Turbine model efficiencies, prototype outputs and efficiencies for 21.88 foot net head (NET HEAD PER IEC #41-1965, page 17)

Qu Em Q Prototype Turbine
(Unit discharge) (Model Efficiency) (cfs, prototype discharge) Efficiency Ep KW Output

0.761 224.9 88.79% 370.0
1.015 299.9 91.46% 508.2
1.269 374.9 92.68% 643.7
1.522 449.8 93.15% 776.4
1.776 524.8 93.18% 906.1
2.030 599.8 92.79% 1031.2
2.283 674.8 91.81% 1147.8
2.537 749.7 90.04% 1 250.8

The Vendor shall provide the following additional guaranteed turbine performance data. All quoted turbine performance is to
be based on a rated turbine operating speed corresponding to a 19.9 foot rated net head.

Turbine model efficiencies, prototype outputs and efficiencies with unit operating under a 19.9 foot net head.
n11=175

Qui Em Q Prototype Turbine
(Unit discharge) (Model Efficiency) (cfs, prototype discharge) Efficiency Ep KW Output
0.798 224.9 89.15% 338
1.064 299.9 91.61% 463
1.330 374.9 92.65% 585
1.596 449.8 93.04% 705
1.862 524.8 93.04% 823
2.128 599.8 92.58% 936
2.394 674.8 91.39% 1039
2.661 749.7 89.21% 1127

Turbine model efficiencies, prototype outputs and efficiencies with unit operating under a 17.9 foot net head.
n1i = 184.8

Qu Em Q Prototype Turbine
(Unit discharge) (Model Efficiency) (cfs, prototype discharge) Efficiency Ep KW Output
MAX
0.841 ne 89.09% 304
1.122 299.9 91.39% 416
1.402 374.9 92.31% 525
1.683 449.8 92.66% 632
1.963 524.8 92.64% 737
2.243 599.8 92.04% 837
2.524 674.8 90.52% 926
2.804 749.7 87.82% 999

Project No. 0-29029.Rev.3 www.mavel.com Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

ww.mavel.com

4.6 Turbine Service Differences

The Vendor shall state the method (Ex: Hutton Formula, Moody Formula, etc.) utilized in stepping the model efficiencies to the
guaranteed prototype efficiencies.

The Vendor shall state any differences in the turbine model and the prototype unit.

Does the turbine model test include the effects of the turbine shaft in the water passage? (yes orno) No. Because shaft is
not inside the

water profile.

Does the turbine model test include actual cavitation testing? (yes or no) Yes

Was the turbine model test witnessed by an independent third party? (yes or no) (If so, Vendor shall

identify said party) Yes

The Vendor shall estimate the cost of conducting a witnessed model test if the prototype turbine It shall be discussed
does not meet its guaranteed performance data? if the prototype

turbine does not
meet guaranteed

data.
4.7 Turbine Service Requirements

ls the turbine designed to facilitate inspection of the runner without disassembling the draft tube? (yes or no) Yes
Is the turbine designed to facilitate removal and replacement of a blade without complete removal of the Yes
shaft? (yes or no)

Is the turbine designed to remove and replace runner blade seals without removing the blades? (yes or no) No
Is the upstream turbine guide bearing removable without complete removal of the shaft? (yes or no) No
Does the turbine rotor contain convenient provisions for balancing the unit in the field? (yes or no) No

Project No. 0-29029.Rev.3 www.imavel.com Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

www.mavel.com

4.8 Technical Data for Generator

Guaranteed generator output and efficiency (at 0.9 power factor and 40°C ambient) (with turbine operating under _19.9
foot net head).

Generator Output (KW) Generator Efficiency
100% Load 1,080.7 95.9
75% Load 839.3 95.7
50% Load 556.5 95.1
25% Load 312.7 92.5

Guaranteed generator efficiencies shall account for all losses; including but not limited to, bearing, windage, I2R, excitation
and miscellaneous electrical losses.

4.9 Guaranteed Generator Reactances
Direct Axis Subtransient Xd" 0.2 OHMS
Direct Axis Transient Xd'_0.24 OHMS
Direct Axis Synchronous Xd 1.34 OHMS
Negative Sequency Reactance Xd2_0.3 OHMS
Zero Sequency Reactance Xdo 0.01 OHMS
Open Circuit Transient Time Constant T’do 1.28
Calculated Resistance of Field Winding at 25°C 1.46 0 - Main 180 exciter
Max Rated Exciter (dc) Volts 120 Volts
Max Rated Exciter AMPS _6A
Guaranteed Short Circuit Ratio, not less than 0.74
Residual T.I.F., not greater than _BD
Deviation of Waveform, plus or minus 3%
Voltage Regulator Stability +0.5% at 40 °C
Rated Generator Speed 720 RPM

Vendor Shall Submit the Following Generator Performance Curves

(A) No Load Open Circuit Saturation Curve CURVE # TBD

(B) Synchronous Impedance Curve CURVE # TBD
(C) Reactive Capability Curve* CURVE # TBD
(D) Vee Curves CURVE # _TBD

*The reactive capability curves shall define generator limits as a function of ambient temperature.

Project No. 0-29029.Rev.3 www.mavel.com Jackson Mills Upgrade

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www.mavel.com

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 2422204 Fax: +1617 242 2205

Technical Data for Speed Increaser

General Description of Speed Increaser Operation and Features:

Mechanical Rating _3_ HP at 240 RPM

INPUT
Rated Torque 431916 In-Lb
Total Weight of Speed Increaser Assembly 12125 Lb

Guaranteed Efficiencies 98.2 % at 100% Load

979 % at 75% Load

97.2 % at 50% Load
95.8 % at 25% Load

Machining Tolerances - on coupling faces and rims__ TBD MILS

Speed Increaser Bearing Types/Manufacturers:
Low Speed Bearings rolling/SKF, Renk, FAG
High Speed Bearings rolling/SKF, Renk, FAG

Rated Thrust Capacity of Speed Increaser__35970__Lbs. (Upstream)
35970 __Lbs. (Downstream)

Project No. 0-29029.Rev.3 www.mavel.com

Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

www.mavel.com

Technical Data for Hydraulic System and Governor

Component Weights 1102 LBS
Power Requirements 10 kw
Governor Speed Sensitivity +1%
Hydraulic System Working Pressure 2321 PSI
Low Hydraulic Pressure Alarm (Trip) Point 580 PSI
Maximum Permissible Wicket Gate Closure Time 60 SEC
Minimum Time to Open Wicket Gates 60 SEC
Minimum Time to Close Wicket Gates 15 SEC
Wicket Gate Servometer Capacity 34800 LBS
Frce Required to Close Wicket Gates Under Maximum Head at Most Adverse Operating Condition 40345 LBS
Blade Position Servometer Capacity 140400 LBS
Maximum Blade Position Servometer Force Required Under Most Adverse Conditions 160040 LBS

Project No. 0-29029.Rev.3 www.mavel.com Jackson Mills Upgrade

www.mavel.com

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

Equipment Erection, Start-Up, Commissioning and Performance

The Vendor shall estimate the required installation supervision times required for the following:

(1) Embedded Parts
(2) Turbine, Speed Increaser & Generator
(3) Control System

Estimated time for final commissioning of unit

weeks
weeks
weeks

weeks.

Project No. 0-29029.Rev.3

www.mavel.com

Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

www.mavel.com

Variable Speed, Permanent Magnet Generating Equipment
General

Mavel is not providing a proposal for the variable speed, permanent magnet generating equipment. The experience with this
equipment is it is more expensive and requires additional electrical equipment and control. There may also be interconnection

concerns with the local utility that would need to be clarified.

Turbine equipment weight and delivery time information is included in the following forms. Turbine efficiency information is
provided in Section 6, Appendix B.

Jackson Mills Upgrade

Project No. 0-29029,Rev.3 www.mavel.com

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

Turbine Efficiency

Not Applicable — See Appendix B for Performance Info for Proposed Scope

Net Head (ft) Design Discharge (cfs)

Mechanical Power kw) otal Max Efficie %

100% 90% 80% 70% 60% 50% 40% 30%
Turbine

Generator
otal (%)

Project No. 0-29029,Rev.3 www. mavel.com Jackson Mills Upgrade

121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205

www.mavel.com

Generator Coupling

The turbine shall be directly coupled to a permanent magnet generator (PMG) with peak operation at NA RPM.

Weight

Gross shipping weight of the above turbine unit is 55,120 Ibs.

Lead Time

NA

Project No. 0-29029.Rev.3 www.mavel.com Jackson Mills Upgrade