121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205
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
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
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.
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
121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205
Technical Data for Hydraulic System and Governor
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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
121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205
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
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.
121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1617 242 2205
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
121 Mount Vernon St., Boston, MA 02108, USA
Phone: +1617 242 2204 Fax: +1 617 242 2205
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.
