HomeMy WebLinkAboutBid Tally -8195 TRANSFORMERS 50KVA PAD-MOUNTED SINGLE PHASEI Phase Padmounted Transformer Bid Evaluation
A Unite
3u
Xfmr Type If'Psr1
Bide:
Ww
Siva
50IrVA
Secondary V ?4,b 1 Y0
Date: il,wmrnr ,
C'. Z 21'
NLLou Cost
$ --1,
Stock 11fn150
FL Lou Coat
If 1.` )
Specified
Impedance%
1.0
(See Impedance Requirements
Table in Specification)
InckxJas wro g's
Stray Losses A Losses
Losses
Assoclaled with
W Indeg's assoclaled
Base Bd
Rork Based on
Rank Based on
Base Bd
Guar No
Guar Total Amdiary Devices (Vas I
Stray wan Au411ary Impedance
Exlended Cost NL Lose
NIL FL Low'
FL Blot H Is best
Evalualed bit (I
supplier
mmumwm
$ / Each DaIM'ks
Load Low Guar Ful Load
Low
Impedance Meet Specs? Escalation Load Loss No)
Losses Devices Variance Evaluated Bid (?dal $) Low
Cost Low Cost choke)
is best choke)
Wesco
ABB
S 2.042.25 12-14Weeks
tug
11
1_li Y, N"I
522 Yes
10 0 Ir 71^.5,. $
3,086.85 $ 61.267.50 $
425.10 $
619.50
5 4
Araxer
Central Moloney
$ 1.9'30.W 12Meor,,
9ti
..
a. ub'L1 11ob1
618nu
22 1) tars% $
3,087.40 $ 57.900.00 $
374.40 $
783.00
4 5
Western United
Central Moloney
S 1,877xla 12 wks am
06
,..
2 0o yes i_ nn1
618 nu
22 m t ]Ll% $
3,034.40 $ 56,310.00 $
374.40 $
783.00
3 3
Western United
Howard lnchedries
S 1,683, W 8.10 wks
ill
4's3
I IOU Nu a uol
604 yes
13 0 1.78%, $
2.855.40 It 50.490.00 $
432.90 $
739.50
1 -
Irby Utiltees
Cooper Power Systs
$ 1.795.00 13
N.'.
Y7
I.9b yes Ys
652 yes
43If P 0.25°& $
2,977.00 $ 53.850.00 $
331.50 $
850.50
2 2
Notes:
1. Wesco bid Includes exception to the undercoating requirement and has quoted a product with the SST skid and sill for corrosion protection. Includes IFD and PRV again; only need the IFD. DOE 2016
2. There Is no supplemental data submitted wain Amxer's bid.
3. There is no additional data submitted with Western United's bid for Central Moloney.
4. Howard's quoted losses do not meet the DOE efficiency standards. For a 50 kVA the 2016 requirement is 99.11 % efficiency; using the DOE calculation method these losses lead to an efficiency of 99.090%. 1 also coot understand why they are quoting a transformer compliant to an archived IEEE standard
(C57.12.25)
5. Imys quote for Cooper dmrs Includes exceptions Nat we have seen and accepted before. The agreement between Irby and Fort Collins that electronic lest reports be collected by Irby and sent to Fort Collins prior to shipment sell holds.
Based on Ore ranking of the evaluated bids, Cooper Power Systems care of Irby is the lowest evaluated responsible bidder and should be awarded Bid 0195.
IEEE C57.12.00, Section 9.2 Tolerances for Impedance
The tolerances for Impedance shall be as follows:
a) The impedance of a two -winding transformer with an impedance voltage greater than 2.5%shall have a tolerance of±7.5% of the specified value, and those with an impedance voltage of 2.5%
or less shall have a tolerance of±10% of the specified value.
Differences of impedance between duplicate two -winding transformers, when two or more on its of a given rating are produced by one manufacturer at the same time, shall not exceed 7.5% of the
specified value.
b) The impedance of a transformer having three or more windings, or having zigzag windings, shall have a tolerance of±10%of the specified value.
Differences of impedance between duplicate three -winding or zigzag transformers, when two or more units of a given rating are produced by one manufacturer at the same time, shall not exceed
10%of the specified value.
c) The impedance of an autotransformer shall have a tolerance of±10% of the specified value. Differences of impedance between duplicate autotransformers, when two or more units of a given
rating are produced by one manufacturer at the same time, shall not exceed 30%of the specified value.
d) Transformers shall be considered suitable for operation in parallel when reactances come within the limitations of the preceding paragraphs, provided that turns ratios and other controlling
characteristics are suhable, for such operation.