Full Text
City of Lewiston Finance Department Norman Beauparlant, Director of Budget/Purchasing 2013-013 Furnish - MTE Harmonic Filters March 6, 2013 Sir/Madam: Sealed bids will be received in the office of the Director of Budget/Purchasing on Tuesday, March 19, 2013 until 2:00 p.m. at which time they will be publicly opened and read aloud on the enclosed specifications for MTE Harmonic Filters for the City of Lewiston Public Works Department. The Finance Committee reserves the right to accept or reject any and all proposals. Please use the enclosed envelope or a clearly marked envelope with the bid name and number when submitting your bid. Only sealed bids will be accepted. Faxed bids will not be considered. Sincerely, Norman J. Beauparlant Director of Budget/Purchasing NJB/syt ---PAGE BREAK--- City of Lewiston, Maine MTE Harmonic Filters Bid 2013-013 Bid Date: March 19, 2013 @ 2:00 p.m. The City of Lewiston is seeking qualified bids from contractors to furnish MTE Harmonic Filters. Each bidder is required to state in his/her proposal, his/her name and place of residence and the names of all persons or parties interested as principals with him/her, and that the proposal is made without any connection with any other bidder making any proposal for the same work; and that no person acting for or employed by the City of Lewiston is directly or indirectly interested in the proposal or in any contract which may be entered into to which the proposal relates, or in any portion of the profits therefrom, except as provided by the City Charter. The proposal must be signed by the bidder with his/her full name and address and be enclosed in a sealed envelope. The sealed envelope shall be marked with the name and address of the bidder and entitled: Bid: 2013-013 MTE Harmonic Filters, and be addressed to: Director of Budget/Purchasing, City Hall, 27 Pine Street, Lewiston ME 04240. All mailed proposals should be sent be registered mail to insure delivery. Any bidder may withdraw his/her proposal prior to the scheduled time for the opening of proposals upon presentation to the Purchasing Agent of a request, in writing, to do so. Any bidder who withdraws his/her proposal within thirty (30) days after the actual opening thereof shall be considered to have abandoned his/her proposal. Any proposal received after the scheduled opening time will not be considered. The Finance Committee reserves the right to waive any formality and may consider as informal any proposal not prepared and submitted in accordance with these provisions. The Finance Committee reserves the right to accept any proposal or reject any or all proposals if it is deemed to be in the City’s best interest to do so. All bid prices are to be net, FOB Lewiston Public Works, 103 Adams Avenue, Maine 04210. All materials and workmanship shall carry the manufacturer’s standard guarantee. The bidder shall warrant to the buyer that the proposal conforms to these specifications without deviations. All bidders must provide documentation that they are an authorized dealer of the item bid at the time of the bid. Bids from dealers not able to provide documentation from the manufacturer will not be considered. ---PAGE BREAK--- Specifications # Description Yes No 1 The harmonic filter shall treat all characteristic low frequency harmonics generated by a three phase full wave converter load (5 , 7 , 11 , 13 , etc.) th th th th 2 The characteristic harmonics shall be suppressed without need for individual tuning or the requirement to phase shift against other harmonic sources. 3 The harmonic filter shall be an adaptive passive series connected low pass filter consisting of an inductor capacitor network. Active electronic components shall not be used. 4 The harmonic filter model supplied shall be capable of feeding a three phase input rectifier with or without line reactors, with or without a DC link choke, with or without a combination line reactor and DC link choke. 5 The harmonic filter model supplied shall be capable of feeding a rectifier composed of diodes, thyristors or any combination thereof. 6 The harmonic filter shall meet the harmonic performance specification with a three percent phase voltage unbalance as defined in ANSI C-84.1-1995. 7 The harmonic filter shall not resonate with the power distribution system nor attract harmonics from other sources. 8 The filter shall be suitable for use with either a single nonlinear load or multiple nonlinear loads. 9 The filter shall be listed per UL-508. 10 In operating range from full load to 30% load the power factor shall be .98 lagging to .85 leading. 11 The harmonic filter in combination with the adjustable frequency drive shall meet all requirements specified in the 1992 edition of IEEE standard 519 for individual and total harmonic voltage and current distortion. The Point of Common Coupling (PCC) for all voltage and current harmonic calculations and measurements shall be the input terminals of the harmonic filter. 12 Total Demand Distortion (TDD) of the current at the input terminals of the harmonic filter shall not exceed the limits defined in Table 10-3 of IEEE-519. 13 Total Harmonic Voltage Distortion (THVD) shall meet the requirements of Table 10-2 of IEEE-519. The harmonic filter supplier shall not be responsible for pre-existing voltage distortion caused by other harmonic sources. 14 The harmonic filter shall suppress the characteristic harmonics to the levels specified in paragraph 12.0 provided that the line voltage unbalance is between 0% and If the line voltage unbalance is between 1% and 3% per ANSI C84.1-1995 the total harmonic input current distortion at any reduced load or speed condition shall not exceed the full load THiD by more than 50% (i.e. if 5% THiD required at full load, then not more than 7.5% THiD at reduced load when voltage unbalance is more than or equal to 1% and less than or equal to ---PAGE BREAK--- 15 The full load efficiency of the harmonic filter shall be greater than 97 percent. 16 When fed from a power distribution system operating at the nominal distribution voltage, the harmonic filter output voltage at no load shall not be more than 4.6 percent of the nominal RMS and peak distribution voltage. 17 When fed from a power distribution system operating at the nominal distribution voltage, the harmonic filter output voltage at full load shall not be less than the nominal RMS utilization voltage. 18 All wiring shall be copper. 19 To assure that voltage source PWM inverters do not experience over voltage trips, the harmonic filter shall not cause the inverter bus voltage to increase by more than 5% when the filter is operating from the nominal distribution voltage. 20 To assure that the filter will not reduce the life of a voltage source inverter’s bus capacitor, the output current waveform of the harmonic filter and the input current waveform of the inverter shall be consistent with the input waveform of an inverter fed from a drive equipped with a 3% minimum impedance line reactor. 21 The harmonic filter shall be warranted to be free of defects in materials and workmanship for a period of one year from the date of shipment when applied in accordance with the manufacturer’s recommended installation procedures. 22 An integrated series and shunt reactor shall be used in the construction of the harmonic filter. 23 To ensure generator compatibility, the harmonic filter must never introduce a capacitive reactive power (KVAR), which is greater than 20% of its KVA rating. 24 ThiD shall be less than 5% at full load and less than 8% at 30% load. 25 Harmonic filters 320A and above shall be temperature rated to 45 degrees C ambient without performance derating. 26 The harmonic filter shall be a Matrix AP Filter as manufactured by MTE Corporation. Model # MAPG0403D012 or equal. ---PAGE BREAK--- City of Lewiston, Maine MTE Harmonic Filters Bid 2013-013 Bid Date: March 19, 2013 @ 2:00 p.m. PROPOSAL FORM TO: Director of Budget/Purchasing City Hall, 27 Pine Street Lewiston ME 04240 Dear Sir/Madam: The undersigned hereby declares that he has carefully examined the specifications and that he/she proposes and agrees, if this proposal is accepted, to provide the items identified in his/her proposal in accordance with the specifications listed; and that he/she will accept full payment therefor the following sum: Description Unit $ Total $ Furnish three MTE 480 Volt Harmonic Filters as specified $ $ STATE MAKE STATE DELIVERY TIME STATE TERMS COMPANY NAME SIGNED PRINTED NAME/TITLE ADDRESS DATE PHONE # FAX # E-MAIL ADDRESS