Loren Data's SAM Daily™

FBO DAILY ISSUE OF MARCH 12, 2010 FBO #3030
MODIFICATION

59 -- Fish Pump Electric Motors, 3 Phase Vertical Induction Type for Ice Harbor Lock and Dam, Burbank, WA 99323-8662

Notice Date

3/10/2010
 

Notice Type

Modification/Amendment
 

NAICS

423610 — Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
 

Contracting Office

USACE District, Walla Walla, 201 N. Third Avenue, Walla Walla, WA 99362-1876
 

ZIP Code

99362-1876
 

Solicitation Number

W912EF10RSS19
 

Response Due

3/15/2010
 

Archive Date

5/14/2010
 

Point of Contact

Nona Fincher, 509-527-7218
 

E-Mail Address

USACE District, Walla Walla
(nona.r.fincher@usace.army.mil)
 

Small Business Set-Aside

N/A
 

Description

Additional information: Frame number is 586P. The motors are a solid shaft. This motor was built before NEMA standards and is no longer available. Requirement is for a new motor that fits the existing plate. A summary of the specifications are below. It the same as previously attached except the set of surge arrestors and capacitors kit for the motor was removed. Also the section about surge protection was removed. Those two items are no longer required. QUOTE ITEM LIST BID ITEMDESCRIPTION QTY UNIT 001 250 HP Vertical Induction Motor 8 Each 002 Motor Termination Kits 8 Each 003 Oil for Bearings 1 Lump Sum 004 Spare Parts 1 Lump Sum 005 Operation and Maintenance Manuals 3 Each TECHNICAL SPECIFICATIONS The purpose of this specification is to replace the existing fish pump motors with new motors and use the existing pedestals. The new replacement motor will utilize the existing motor couplings. Corrosion Prevention and Finish Painting The equipment provided under these specifications will be subjected to severe moisture conditions and shall be designed to render it resistant to corrosion from such exposure. Fastenings and Fittings Where practicable, all screws, bolts, nuts, pins, studs, springs, washers, and other similar fittings shall be of corrosion-resisting material or shall be treated in an approved manner to render them resistant to corrosion. Corrosion-Resisting Materials Corrosion-resisting steel, copper, brass, bronze, copper-nickel, and nickel-copper alloys are acceptable corrosion-resisting materials. Corrosion-Resisting Treatments Hot-dip galvanizing shall be in accordance with ASTM A 123 or ASTM A 153 as applicable. Other corrosion-resisting treatments may be used if approved by the Contracting Officer. Frames Motor frames, end bells, covers, conduit boxes, and any other parts, if of steel, and if they will be coated during the process of insulating the windings, shall be cleaned of rust, grease, mill scale, and dirt, and then treated and rinsed per manufacturer's standard process. Cores The assembled motor core shall be thoroughly cleaned and then immediately primed by applying a minimum of two coats of a moisture-resisting and oil-resisting insulating compound. Air gap surfaces shall be given a minimum of one coat. Shafts Exposed surfaces of motor shafts shall be cleaned of rust, grease, and dirt and, except for bearing surfaces, given one coat of a zinc molybdate or equivalent primer and two coats of a moisture-proof coating, each cured as required. Shafts of corrosion-resisting steel may be used in lieu of the above treatment. Finish Painting Finish painting of all equipment shall be in accordance with the standard practice or recommendation of the manufacturer. Nameplates Nameplate data shall include at a minimum the rated voltage, rated full-load amperes, rated horsepower, service factor, number of phases, RPM at rated load, frequency, code letter, locked-rotor amperes, duty rating, insulation system designation, and maximum ambient design temperature. Motor Pedestal The existing Motor pedestal shall be used to mount the new motor to the existing speed reducer gearbox. The motor pedestal will be used to mount the motor to the gearbox and to provide spacing for alignment of the motor shaft to speed reducer shaft coupling. The height of the current motor pedestal is approximately 13.5 inches. A formal document must be provided as a submittal to show the motor mounting and how it will attach to the existing motor pedestal. Motor Couplings The existing motor couplings are produced by Emerson Power Transmission Corporation, The coupling hubs are the following sizes: Motor Coupling hubSpeed Reducer Gearbox 90 EHUB90 EHUB 2.375/2.3765 Bore3.000/3.0015 5/8 X 5/16 Keyway3/4 X 3/8 Keyway SYSTEM DESCRIPTION The work under this section includes providing all labor, equipment, and material and performing all operations required to design, manufacture, assemble, test, and package and deliver the vertical induction motors for gearbox reduced driving pumps. These motors shall be supplied complete with all accessories, spare parts, tools, and manufacturer's data and instructions. SPARE PARTS Spare parts and materials shall be furnished as specified below. Spare parts that are standard manufactured items shall be identical to the new parts provided in this contract. They shall be from the same manufacturer and shall be the same model number and part number as the parts provided. Spare parts that are shop fabricated for this contract shall be of the same material and workmanship, shall meet the same requirements, and shall be interchangeable with the corresponding new parts provided in this contract. All spare parts shall be furnished packaged in the manufacturers original packing containers. Documentation shall be furnished with the spare parts. Documentation shall include quantity and description of the parts, manufacturers names, model numbers and parts numbers, and name and telephone numbers of source of supply for each part. 1 eachThrust bearings. 1 eachLower Guide bearings. 1 setNon-standard wrenches, tools, and special equipment. 1 setSpare Motor termination kit The Contractor shall complete the Spare Parts Receipt and shall submit a copy of the completed and signed receipt to the Contracting Officer. MOTORS The motors to be supplied under these specifications shall be of the vertical shaft type as originally installed by Western Gear, normal or low starting torque, low starting current, squirrel-cage induction type, designed for full voltage starting, of Weather Protected II (WP-II) construction, and shall conform to the applicable requirements of NEMA MG 1, except as hereinafter specified. Rating Each motor shall be wound for 3-phase, 60-Hz, alternating current, and for the respective operating voltage listed below: PLANT SERVICE MOTOR OPERATING VOLTAGE 4,160 V4,160 V4,000 V The motor shall be designed for operation in a 40 degrees C ambient temperature direct sun and all temperature rises shall be above this ambient temperature. The rated horsepower of the motor shall be the original horsepower rating of 250 HP as determined by Western Gear. Motors shall have a service factor of 1.15 and service factor shall not be used in motor sizing. The temperature rise above the ambient temperature for continuous rated full-load conditions and for the class of insulation used shall not exceed the values given in NEMA MG 1, paragraph 12.42 or paragraph 20.40. Motor speed shall be 1760 RPM as determined by the original motors on the Western Gear gearbox, which were supplied by Marathon Electric. Motor insulation shall be Class F with temperature rise limited to Class B. The motor should be sized and evaluated to meet this specification using these drawings. Operating Characteristics Torques Starting torque shall be sufficient to start the pump to which the motor will be connected under the maximum conditions specified, but in no case shall the starting torque be less than 60 percent of full load torque. Breakdown torque shall not be less than 200 percent of full-load torque. Locked-Rotor Current The locked-rotor current shall not exceed 600 percent of normal full-load running current. Starting Capabilities Large motors, on the basis of the load torque characteristics and the load inertia Wk2 listed in NEMA MG 1, paragraphs 20.41 and 20.42, shall as a minimum be capable of making the starts required in NEMA MG 1, paragraph 20.43. Duty Cycle Each motor, when operating at rated voltage, frequency and on the basis of the connected pump load inertia Wk2 and the speed-torque characteristics of the load during starting conditions as furnished by the pump manufacturer, Western Gear, shall be capable of performing on a continuous basis the following motor duty cycle without injurious temperature rise: Operation at rated load over a period of approximately 300 days. A starting information nameplate setting forth the starting capabilities shall be provided on each motor. This nameplate shall also include the minimum time at standstill and the minimum running time prior to an additional start. Noise All motors shall be operated and tested at full load in the factory for a noise level less than 85 decibels A-weighted mean sound pressure level (dBA). Noise shall be determined in accordance with IEEE Standard 85. The specified noise limit applies for a reference distance of one meter for free-field conditions. Tabulate results and submit for review. Power Factor and Efficiency The power factor at full load should be.92 and efficiency 96. The power factor at 3/4 load should be.92 and efficiency 95.5. The power factor at 1/2 load should be.875 and efficiency at 92. (Motor HP 250, Motor RPM 1800 and FL Amps 32.5) Motors will be rejected if factory tests specified in paragraph FACTORY TESTS do not demonstrate that these values will be met or exceeded. Frames and Brackets Frames and end brackets shall be of cast iron, cast steel, or welded steel. The mounting ring, unless otherwise approved, shall be built integral with the frame or lower end bracket and arranged for direct mounting on the speed reducer (gearbox). Stator Frame The stator frame shall be rigid and sufficiently strong to support the weight of the upper bearing bracket load, the weight of the stator core and windings, and to sustain the operating torques without perceptible distortion. The stator frame shall be mounted on the speed reducer. The motor base or drive pedestal shall be provided with bolts and dowels for fastening to the sole plates or supporting structure for preserving the alignment. Supporting Bracket The upper bracket supporting the thrust bearing and upper guide bearings shall have sufficient strength and rigidity to support the weight of the entire rotating element of the motor, together with the speed reducer shaft. Eyebolts Eyebolts, lugs, or other approved means shall be provided for assembling, dismantling, and removing the motor from above using an overhead crane. All lifting devices required for use in conjunction with the crane shall be provided with the motor. Cores The cores for the stators and rotors shall be built up of separately punched thin laminations of low hysteresis loss, non-aging, annealed, electrical silicon steel, assembled under heavy pressure, and clamped in such a manner as to insure that the assembled core is tight at the top of the teeth of the laminated core. Laminations shall be properly insulated from each other. Only laminations free from burrs shall be used, and care shall be taken to remove all burrs or projecting laminations from the slots of the assembled cores. Cores shall be keyed, dovetailed, or otherwise secured to the shaft or frame in an approved manner. Insulated Windings All motors shall have a non-hygroscopic, sealed, fungus-resisting insulation of a type designed and constructed to withstand severe moisture conditions to operate after long periods of idleness without previous drying out. All windings and connections shall be of the sealed type as defined in NEMA MG 1 paragraph 1.27.2. Insulated windings, unless otherwise approved, shall be completely assembled in the motor core before impregnating with the insulating compound. The compound shall consist of 100 percent solid resin. Impregnation of the windings with the insulating compound shall be by vacuum impregnation method followed by baking. The procedure shall be repeated as often as necessary to fill in and seal over the interstices of the winding, but in no case shall the number of dips and bakes be less than two dips and bakes when the vacuum method of impregnation is used. Insulation to ground shall be processed on the coil. The completed stator shall be of a type that is capable of passing the submerged or sprayed water test, as applicable, required by NEMA MG 1 paragraph 20.49. Random Wound Machines Random wound coils may be used on motors supplied in NEMA frame size 445 TP and smaller. The components of the insulation system and the conductor insulation of the coils shall be Class F insulation with a 110 percent continuous overload factor as defined in NEMA MG 1 paragraph 1.66. After winding, the completely wound stator shall be encapsulated with an insulating resin as defined in NEMA MG 1 paragraph 1.27.1. Form Wound Machines Form wound coils shall be used on motors supplied in NEMA frames larger than 445 TP. The components of the insulation system and the coil insulation of the rectangular conductors shall conform to Class F insulation with a 110 percent continuous overload factor as defined in NEMA MG 1, paragraph 1.66. The completed stator windings and connections shall be of the sealed type as defined in NEMA MG 1paragraph 1.27.2. Insulation to ground shall be processed on the coil. Slot tubes or cells are not acceptable. The insulation shall be of adequate thickness and breakdown strength throughout the length of the coil. Mica shall be used in the slot portion and shall be of adequate thickness to withstand the dielectric tests specified in paragraph FACTORY TESTS. Form wound coils shall be of such uniformity that the stator windings on motors of equal ratings shall be alike, in shape and size, and be interchangeable. Bracing Coils of all windings shall be fully braced so that vibration is virtually eliminated during repeated starts as required by the duty cycle specified as well as during normal operation. If a tied system is used it shall be such that no tie depends upon the integrity of any other tie within the system. Thermal Protection For motors rated 300 hp or less, resistance temperature detectors (one per phase) shall be embedded in the windings. Detectors shall have a copper resistance element having a resistance of 10 ohms at 25 degrees C. Winding Heaters Heaters shall be wrapped around the winding end turns. They shall be designated for operation on 120 volts, 1-phase, 60 Hz, alternating current and of sufficient capacity or wattage that, when energized, they will hold the temperature of the motor windings approximately 10 degrees C above the ambient temperature. They shall be designed for continuous operation and to withstand at least 10 percent over-voltage continuously. The rate of heat dissipation shall be uniform throughout the effective length of the heater. Heaters installed around the winding end turns shall consist of the required turns of heating cable wrapped around the end turns and secured in place before the winding is impregnated. Heating Element Heating element shall conform to the requirements of ASTM B 344 for an 80 percent nickel and 20 percent chromium alloy. Sheath Sheath shall be of a corrosion-resisting, non-oxidizing metal and shall have a wall thickness not less than 0.025 inch. Insulation Insulation shall be a granular mineral refractory material, highly resistant to heat, and shall have a minimum specific resistance of 1,000 Meg-ohms per inch cubed at 1,000 degrees F. Insulation for the heating cable (winding wraparound type) type heaters shall be suitable for a conductor temperature of 180 degrees C. Terminals Terminals of the heater, including the leads, shall be watertight and shall be provided with leads suitable for making connections to the drip-proof terminal box provided in paragraph MOTOR TERMINALS AND BOXES. The terminal box shall be readily accessible through the crating so that winding heaters can be energized while motors are in storage. Shafts Shafts shall be made of high grade steel, finished all over, and of ample size to drive the pumps under maximum load conditions. Shafts shall be solid type as per original motor configuration. Bearings Loading Bearings shall be capable of withstanding all stresses incidental to the normal operation of the unit. Thrust Bearings Thrust bearings shall be of the antifriction type of either the ball or roller type. Tandem or series bearing assemblies shall not be used. Antifriction bearings shall conform to the requirements of ABMA 9 and ABMA 11. Guide Bearings Guide bearings shall be of the sleeve or antifriction type of either the ball or roller type or a combination of sleeve and antifriction bearings. Lubrication Bearings shall be oil bath lubricated and the lubricant used shall contain a corrosion inhibitor. Type and grade of lubricant used shall be shown on a special nameplate which shall be attached to the frame of the motor adjacent to the bearing lubricant filling device. In addition to the quantity of lubricant required to fill the system initially, spare lubricant shall be provided in sufficient quantity to purge and refill the system. Housings Bearing housings shall be of a design and method of assembly that will permit ready removal of the bearings, prevent escape of lubricant and entrance of foreign matter, and protected by the lubricant when the motor is idle. Except for pre-lubricated antifriction bearings of an approved type, suitable means shall be provided to apply and drain the lubricant. Oil-lubricated bearing housings shall be provided with oil-level indicator sight glasses that will be readily visible. Cooling All bearings shall be self-cooling and require no auxiliary pumping equipment. Suitable means shall be provided to indicate the bearing temperature, actuate an alarm when the bearing temperature is above normal, and actuate a device to shut down the motor when the maximum safe operating temperature of the bearing is reached. Bearing temperature indication shall be provided by means of Resistive Temperature Detectors (RTD) and have a copper resistive element having a resistance of 10 ohms at 25 degrees C. Loads shall terminate on terminal blocks specified in paragraph MOTOR TERMINALS AND BOXES. Rating Antifriction bearings shall be rated on the basis of a minimum life factor of 100,000 hours, based on the life expectancy of 90 percent of the group, unless otherwise approved by the Contracting Officer. Shaft Currents Bearings shall be insulated or otherwise protected against the damaging effects of shaft currents. MOTOR TERMINALS AND BOXES Stator Terminal Box Drip-proof cast iron or steel conduit terminal boxes, treated as specified for frames in paragraph GENERAL REQUIREMENTS. All auxiliary wiring shall be supplied for housing the stator lead connections surge capacitors and surge arresters and shall have adequate space to facilitate the installation and maintenance of cables and equipment. Bus bar connections are the preferred method of accomplishing this by the project but other methods should be submitted to the government for approval. Boxes shall have a bolted cover providing unrestricted access, be mounted on the motor frame, and shall have an auxiliary floor supporting structure, when required, supplied by the motor manufacturer. Conduit entrance shall be from the bottom. The boxes shall be designed to permit removal of motor supply leads when the motor is removed. A HIGH VOLTAGE 4,160 VOLTS warning sign shall be provided on the cover of the box. Stator Terminals Insulated terminal leads shall receive a treatment equal to that of the motor winding. Leads shall be brought out of the stator frame and shall be provided with terminal lugs for connection to the motor supply wiring. Grounding A ground bus and means for external connection to the station grounding system shall be provided in the stator terminal box when surge protection is provided. Accessory Leads and Boxes a. Terminal leads for motor winding space heaters, surge protection equipment space heater, resistance temperature detectors and any other auxiliary equipment shall be brought into conveniently located terminal boxes provided with terminal blocks for extension by others. The terminal boxes shall be drip-proof and treated as specified for frames in paragraph GENERAL REQUIREMENTS. All auxiliary wiring shall be stranded copper conductors with 600-volt flame-retardant insulation conforming to NEMA WC 7, except temperature detector leads may be in accordance with the manufacturer's standard practice. All wiring and terminals shall be properly identified. WRENCHES, TOOLS, AND SPECIAL EQUIPMENT The Contractor shall provide all nonstandard and special equipment required for dismantling, reassembly, and general maintenance of the motor units.
 

Web Link

FBO.gov Permalink
(https://www.fbo.gov/spg/USA/COE/DACA68/W912EF10RSS19/listing.html)
 

Place of Performance

Address: USACE District, Walla Walla 201 N. Third Avenue, Walla Walla WA

Zip Code: 99362-1876
 

Record

SN02087749-W 20100312/100310234556-3beb0c66a55c9fb2f948d6bb2c1ea848 (fbodaily.com)
 

Source

FedBizOpps Link to This Notice
(may not be valid after Archive Date)

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