REQUEST FOR PROPOSAL RFP PUCE19-009 SUPPLY OF PDD … · ANSI C57.12.90. C. TRANSFORMER TANKS Tanks...

REQUEST FOR PROPOSAL RFP PUCE19-009 SUPPLY OF PDD POLE

MOUNTED TRANSFORMERS.

For the Provision of Preliminary Improvement Works

at Koror Sewage Pump Stations

(LUMP SUM)

Issued on : APRIL 26, 2019 Closed on : MAY 24, 2019 Request For Proposal No. (RFP No.) : RFP-PUCE19-009

Employer : Palau Public Utility Corporation (PPUC) PO Box 1372, Oldiais Building, Medalaii, Koror Republic of Palau 96940

Country : Republic of Palau

Palau Public Utilities Corporation

Request For Proposal (RFP) for the Supply of PDD Pole Mounted Transformer.

Table of Contents

1. PREFACE 1

2. BACKGROUND 1

3. SCOPE OF WORKS 1

4. OBTAINING RFP 7

5. PROPOSAL REQUIREMENTS 8

6. SUBMISSION OF PROPOSALS 8

7. PAYMENT TERMS 8

8. EVALUATION AND SELECTION PROCESS 8

9. GENERAL CONDITIONS 9

10. CONTRACT CLAUSES 9

11. CONTACT DETAILS 10

APPENDIX 1- BID FORM 11

Appendix 2: Schedules of Rates and Prices 12

Request For Proposal (RFP) for the Supply of PDD Electric Poles.

1

1. PREFACE

This Request for Proposals (RFP) for the Supply of PDD Pole Mounted Transformers has been prepared by

Palau Public Utilities Corporation - Electric Power Operations (PPUC-EPO). PPUC-EPO wishes to receive

Proposals from all interested persons or firms eligible to operate and with the capability to supply the services

in the Republic of Palau.

2. BACKGROUND Due to Power Distribution Department (PDD) New Installation, System Upgrade, Emergencies and Other

Tasks Related to a Sustainable Electrical Power. Power Distribution Department (PDD) is in need to purchase

this PDD Pole Mounted Transformer. In order for PDD to meet and perform the Expectation of Costumer and

to fulfil the needs of the PDD Operation.

The Palau Public Utilities Corporation (PPUC) provides power, water and sewerage services to Koror and other

areas in the Republic of Palau. In this RFP, Palau Public Utilities Corporation - Power Distribution Department

(PPUC - PDD) intends to buy the needed Materials and Hardware to be Utilize by Power Distribution

Department (PDD). PDD is located at Malakal, Koror Republic of Palau.

The Republic of Palau comprises of 350 tropical islands and islets located in the westernmost part of

Micronesia about 600 miles (960 kilometers) East of Mindanao, Philippines and some 800 miles (1,280

kilometers) southwest of Guam. Palau lies between 8°10’N/3°N Latitude and 132°45’/134°25’E Longitude.

The main group of Palau Islands is dominated by the 150 square mile (390 square kilometers) island of

Babeldaob—Palau’s largest land mass.

PPUC was created in 1994, the same year Palau gained independence as a sovereign nation. Since then,

PPUC has been operating the national electric utility and the distribution facilities, which now covers about 47

linear miles of 34.5KV transmission and 114 linear miles of 13.8KV distribution lines.

Palau has a current real capacity of slightly over 28MW with power plants located at Malakal, Aimeliik,

Peleliu, Angaur and Kayangel. Malakal and Aimeliik provide power to the central grid supplying Koror, and

Babeldaob.

PPUC has grown from 1,500 connections while under national government management into a public utility

serving over 6,800 customers comprised of 77% residential, 14% commercial, and 9% others. Last fiscal year’s

compiled data showed a total combined generation of 101,227 KW with the highest combined peak load

recorded at 15,760 KW.

3. SCOPE OF WORKS

SCOPE OF SUPPLY: Primary Voltage 13800GY/7970, Secondary Voltage. See Description. Number of

secondary bushings 2, unit

* Transformer will be CBP (One Breaker, One Weak Link Fuse & One Duty Polymer

Arrestor) design

* Primary Voltage will be 13800kv / 7970-2HV bushings w/ birdguards (34KV)


2

* Secondary Voltage will be: See description, with 3 LV bushings

* Taps 2-2.5 % above and below normal will be provided. * Unit will be complete 304L

Stainless Steel.* One set of hanger brackets. * Pressure-relief device.* Rating plat

* Unit quote at 60 Hz.

Item Inventory No. Description Primary Voltage Second

Voltage.

KV

A

No. of

Bushing

QT

Y. MFG.

1 7036-

5KVA 13.8

Pole Mount

Transformer

5 KVA

7970/13800Y 120/240 5 2 10 ABB

2 7036-

10KVA

13.8

Pole Mount

Transformer

10 KVA

7970/13800Y 120/240 10 2 5 ABB

3 7036-

15KV 13.8

Pole Mount

Transformer

15 KVA

7970/13800Y 120/240 15 2 15 ABB

4 7036-

25KVA

13.8

Pole Mount

Transformer

s 25 KVA

7970/13800Y 120/240 25 2 5 ABB

5 7036-

37.5KVA

13.8

Pole Mount

Transformer

s 37.5 kva

7970/13800Y 120/240 37.5 2 6 ABB

6 7036-

50KVA

13.8

Pole Mount

Transformer

50 kva

7970/13800Y 120/240 50 2 3 ABB

7 7036-

37.5KVA

13.8

Pole Mount

Transformer

37.5 kva

7970/13800Y 240/480 37.5 2 2 ABB

8 7036-

50KVA

Pole Mount

Transformer

50 kva

7970/13800Y 240/480 50 2 3 ABB

9 7036-

100KVA

13.8

Pole Mount

Transformer

100 kva

7970/13800Y 240/480 100 2 2 ABB


3

10 7036-

5KVA 34.5

Pole Mount

Transformer

5KVA

19920/34500

Y

120/240 5 8 ABB

Specifications: Transformers shall be capable of operating satisfactory in an ambient temperature range

of 75 to 95 degrees Fahrenheit, relative humidity of 90% and humid coastal environment.

The altitude range shall be from sea level to 3 feet above sea level.

The transformer design, construction and testing shall be in accordance with the latest

accepted published ANSI, IEEE<and NEMA standards such as: ANSI C57.12.00,

C57.12.22, C57.12.70, C57.12.90 and NEMA TR-1 and TR-P9 – 1977 and REA U-5.

A. VOLTAGE

The PPUC uses 13.8KV/7..87KV multi grounded system for its primary distribution

feeders.

Transformers will be connected as single phase or connected as three phase banks for

120/240 or 240/480 or 3phase 120/208 or 277.

B. TEPERATURE RISE

At rated voltage and KVA, the temperature rises of the windings of the transformer

shall not exceed 65 degree C when measured by the resistance method. The hot spot

temperature rise shall not exceed 80 degree C, in accordance with the latest Revision of

ANSI C57.12.90.

C. TRANSFORMER TANKS

Tanks cover bottom and associated hardware and brackets shall be fabricated from

Type 304L or Type 304 low carbon (0.05%) stainless steel.

D. PAINT

Paint to be used for the transformer tanks and cover shall be #70 gray. If special

corrosion resistant paint or painting methods are available, describe their advantages,

and indicate a price adder, if any.

E. Bushing shall be #70 gray with a minimum leakage of 17”, 25KV insulation

class, 150KV minimum BIL. There shall be corona protected high voltage

gaskets to prevent tracking on transformer cover (each transformer shall have

two primary bushings).

F. If manufacturers have other features which will extend the life of their

transformer in a corrosive sea cost environment, they should describe the

feature(s) and indicate any price adder for those features.


4

G. For each size transformer, bidder shall quote the guaranteed average No Load

(NL loss) and average Full Load (FL loss) losses in watts. Bids will be

evaluated in accordance to the following formula: Evaluated Cost = Bid Price

+ N/L losses *$9.17 + F/L loss #$4.59.

H. The supplier of the transformers shall provide PPUC with certified test reports

of supplied transformers. If the average losses are higher or lower than quoted

losses, the invoice will be adjusted accordingly. If the difference in losses is

excessive, PPUC reserves the right to reject the transformers and require the

manufacturer to remanufacture new transformers in according with

specification and quoted losses.

I. Transformers shall have two (2) primary bushings. Pushing insulation is 30

KV BIL>

J. Transformers shall have four (4) 2.5% taps all below the rated voltage, to boost

secondary voltages. Taps shall be set up as follows:

Tap 1 – 100% or 7.97 KV

Tap 2 – 97.5% or 7.77 KV

Tap 3 – 95% or 7.57 KV

Tap 4 – 92.5% or 7.37 KV

Tap 5 – 90% or 7.17 KV

K. Transformers shall have on tank mounted MOV lightning arrester with

insulated bird guard and insulated jumper to the bushing.

L. Transformer oil shall comply with EPA regulations for one PCB oil. Each

transformer shall be clearly marked with a “NON-PCB” sign.

M. Transformer shall be conventional, not CSP transformers. Transformers shall

be protected with outside mounted fuse cutouts.

N. Transformers shall be capable of begin connected into three phase banks.

GENERAL REQUIREMENTS:

A. The transformers shall be capable of operating satisfactory in an ambient

temperature range of 75-95 degrees Fahrenheit, relative humidity of 90% and a

humid coastal environment. The altitude range shall be from sea level to 3000

feet above a sea level.

The transformer design construction and testing shall be in accordance with the

latest accepted published ANSI, IEEE, AND NEMA standards such as: ANSI

C57.12.00, C57.12.22, C57.12.28, C57.12.70, C57.12.90 and NEMA TR-1 and

TR-P9-1977 and REA U-5.


5

B. VOLTAGE

The Palau Public Utility Corporation utilizes a 13.800/7970 voltage multi

grounded system for its primary distribution feeders.

C. BUSHINGS

Primary connection to be dead front, loop feed, 15KV 200 AMP, externally

clamped high voltage epoxy bushing wells and load break inserts, Insulation

class 95 KV BIL.

Low voltage connection to be in plated 4 holes spade type insulated terminals

to accept copper or aluminum NEMA spades, with external removable

grounding strap on neutral. Insulation class 30 KV BIL.

D. TEMPERATURE RISE

At rated voltage and KVA, the temperature rise of the windings of the

transformer shall no exceed 65 deg. C., when measured by the resistance

method. The hot spot temperature rise shall not exceed 80deg. C, in accordance

with the latest Revision of ANSI C57.

E. GENERAL CONSTRUCTION AND ARRANGEMENT

The transformer tank, cover, enclosure, cocking fins, and all assorted hardware

metal shall be fabricated form type 304L, stainless steel. Manufacturer shall

identify by appropriate marking the type of Stainless Steel metal used and

specify the thickness of the metal in inches or in gauge size.

The hand hole cover shall be tightly gasket and securely clamped to the tank to

prevent entrance of moisture.

Standard ANSI accessories shall be provided and fill plug and pressure relief

device suitable for relieving excessive pressure if such develops within the

tank.

In addition to regular locking provisions, access doors shall be secured by

recessed captive Stainless Steel Penta head bolt.

F. CIRE ABD COILS

Core and coils shall be assembled properly with five-legged core/coil assembly

and free of foreign material and rust.

Transformer core assembly with Low Loss Amorphous Steel.

G. IMPEDANCE AND SHOR T CIRCUIT CAPABILITY


6

The transformers shall be constructed to withstand mechanical and thermal

stresses due to secondary short circuit in accordance with the latest revision of

ANSI standard C57.12.00.

H. TAPS

Each transformer shall be supplied with an approved external tap changing

mechanism for de-energized operation.

Each transformer shall be equipped with four (4) different tap setting in 2.5%

increments, in addition to the neutral position.

(delta or wye)

TAPS P-N VOLTS

1 100% 13800 or 7970

2 97.5% 13455 or 7770

3 95% 13110 or 7570

4 92.5% 12760 or 7370

5 90% 12420 or 7170

I. FUSING

High side fusing shall be by means of BAY-O-NET type, oil immersed,

expulsion fuses accessible through primary compartment and backed up by

isolation link. A drip shield shall be below the fuses.

Manufacturer shall stencils in yellow letters at least 1” tall, the following

statement in a visible location above and or below the fuse. Words shall be

stenciled in English and Palau as follows:

DE-ENERGISE TRANSFORMERS BEFORE OPERATING FUSE

TAPE TRANSFORMER AE LE’ AOLAINA FUSE

J. HIGH VOLTAGE SWITCHES

All transformers 300 KVA and over shall have high voltage load break

sectionalizing switches. The above high voltage load break switches are to be

contained inside the transformer tank and may be oil immersed.

The load-break switches shall provide circuit connections as shown in Exhibit 1

(8.3.13.2) Line 1 –on, Off. Line 2 –on, off.


7

The operating handles of the high voltage load break switches for Line 1 and

Line 2 shall be located in the high voltage section of the terminal and switching

compartment and shall be suitable for hot stick operation. The position of the

switches, whether open or closed, shall be clearly indicated.

The high voltage bad break switches shall meet the following requirements

when completely assembled and installed in the pad mount transformer.

a. Voltage rating of load break switches: 15,000 volts, 95 KV BIL

b. Make and latch rating: 5000 rms

c. Symmetrical amperes

d. There shall be no arcing time after the switch blades have traveled from

the closed position to the fully open position.

The transformer shall be electrically rested in accordance with ANSI standard

C-57.12.90.

The bidders shall submit with their bids, the “guaranteed average” no load and

full load losses for each transformer classifications.

The Successful bidder after testing the transformers at the factory shall submit

certified test reports within 2 weeks as to actual losses of each transformers.

PPUC may select to send someone to witness the tests. PPUC will reject all

transformers that do not comply with PPUC tendering specifications and quote

form the successful bidder.

4. OBTAINING RFP

Electronic copies of the RFP may be obtained by emailing the nominated Contact Officer below, or from the

PPUC website www.ppuc.com. All prospective bidders are requested to provide their contact details (company

name and website, contact person, email and telephone number) to ensure they receive any updates to the RFP.

PPUC will also issue hard copies of the RFP on request at Palau Public Utilities Corporation (PPUC), Oldiais

Building, Medalaii, Koror PO Box 1372, Republic of Palau 96940.

Contact Officer:

The contact officer for this RFP is:

Mr SOFRONIO B. MAHOR

Procurement Officer

PPUC

Oldiais Building, Medalaii, Koror

PO Box 1372,

Republic of Palau 96940

http://www.ppuc.com/


8

Telephone No.: 680-488-3870/3872

E-mail Address: [email protected]

5. PROPOSAL REQUIREMENTS

The Proposer shall submit a written proposal which includes:

1. A Title Page identifying the RFP No. and the Works to be provided;

2. An appreciation of the scope of work and activities required, and the methods proposed to be used

to complete the works;

3. Summary of experience in the Pacific Rim for the last three years.

4. Key Personnel or Contact Personnel;

5. Proposed time to start after notification of award

6. Fixed Lump Sum Price for works;

7. Other Proposal features which will contribute to the value of the offer.

6. SUBMISSION OF PROPOSALS

Interested Contractors may submit their sealed Proposal hardcopy to PPUC- Main Office, 2nd Floor, Oldiais

Building, Medalaii, Koror, Palau 96940, or by email to the nominated Contact Officer. For inquiries regarding

submission of quotations, please contact Mr. Mahor as noted above.

7. PAYMENT TERMS

A. Payment terms shall be determined as follows: a. After evaluation per proposal b. After negotiations with the winning offeror. c. All payments shall be made after receipt of original invoice from contractor for each work

phase, certified by a duly authorized PPUC representative

8. EVALUATION AND SELECTION PROCESS All proposals received shall be evaluated by a specially convened committee. The following criteria (NOT

Necessarily in Order) will be used to evaluate proposals:

A - Technical: 60%

1. Proposal compliance with all RFP requirements as stated in this document

2. Proposed Project Time-Frame

3. Familiarity and experience with this type of project for the last Three Years in the Pacific Rim.

4. Fast Records with PPUC Projects.

5. Meet the Required Specifications.

B - Financial: 40%

1. Proposed Project Cost.


9

9. GENERAL CONDITIONS

A. Suppliers are required to submit their proposals based upon the conditions expressed in these

instructions

i. Assignment of Contract: The contract shall not be assigned to any party without prior written consent

from PPUC.

ii. RFP Modification: This RFP does not commit PPUC to award a contract, to pay any costs incurred

in the preparation of the proposal under this request, or to procure or contract for services. PPUC also

reserves the right to accept or reject any or all proposals received under this request, to negotiate with

qualified Bidder, or to cancel in whole or in part this RFP, if it is in the best interest of PPUC to do so.

Prospective Bidder under this RFP may be required to participate in negotiations and to submit any

price, or technical revisions to their proposals as may result from the negotiation process.

iii. Transfer of property: All proposals shall become PPUC property.

iv. Conformity: The PPUC procurement regulations shall apply to all proposals and winning contractor

shall be bound by them.

v. Submission of the Proposal:

1. A cover page with a table of contents

2. An executive summary page that summarizes the corporate history, contractor’s ability to

satisfy the requirements of this RFP, project cost and a synopsis of salient details required

in this RFP.

3. The proposals shall be sealed in a package and should include:

a. The Contractors information (i.e., Name, Address, and Contact) on the outside package

b. The RFP# on the outside of the package that should be submitted NO LATER THAN

4:00 PM of CLOSING DATE-Palau Time.

[Note: The RFP # should be in big fonts.]

c. The sealed package should include the One (1)original plus Six (6) and One (1) USB Soft

copies of the proposal.

vi. Inquiries: Any inquiries, requests, clarification, or additional information pertaining to this RFP shall

be made in writing, by email or fax through the contacts provided

10. CONTRACT CLAUSES

A. All contracts shall, at a minimum, contain the following clauses:

1. Governing Regulations 13. Commencement of Work

2. Penalties for Violation of Regulations 14. Liquidated Damages

3. Contract Disputes 15. Schedule

4. Gratuities 16. Clear Title


10

5. Kickbacks 17. Taxes

6. Representation of Contractor 18. Force Majeure

Concerning Contingent Fees

7. Changes 19. Relationship

8. Stop Work Order 20. Entire Agreement

9. Termination for Defaults or Convenience 21. Assignment

10. Approvals, Certificates, Permits and Licenses 22. Subcontract

11. Laws and Regulations 23. Contracting Officer

12. PPUC’s right to inspect

11. CONTACT DETAILS

Sofronio “Pons” Mahor

PPUC Contracting Officer

PPUC Procurement Division

Tel: (680) 488-5320 Fax: (680) 488-4499

Email: [email protected]

Hilton Hideos

PDD Manager

PPUC Power Distribution Department

Tel: (680) 488-2413

Email: [email protected]

mailto:[email protected]

mailto:[email protected]


11

APPENDIX 1- BID FORM

Letter of Quotation

Date: ________/________/_________

RFP No.: RFP-PUCE19-009

Supply of PDD Pole Mounted Transformers.

To: The Chief Executive Officer / General Manager

Palau Public Utilities Corporation

We, the undersigned, declare that:

(a) We have examined and have no reservations to the RFP, including Addenda issued in accordance

(if any);

(b) The price of our Bid, excluding any discounts offered in item (d) below is the sum of: [amount of

local currency in words], [amount in figures]

(c) Our bid shall be valid for a period of . . . . . days from the date fixed for the bid submission

deadline in accordance with the RFP, and it shall remain binding upon us and may be accepted at

any time before the expiration of that period;

(d) We understand that this bid, together with your written acceptance thereof included in your

notification of award, shall constitute a binding contract between us, until a formal contract is

prepared and executed;

(e) We understand that you are not bound to accept the lowest evaluated bid or any other bid that you

may receive; and

(f) We accept full responsibility for the health and safety of persons employed by us in completing

the works under this Quotation.

Name .................................................................................................................................................

In the capacity of ..............................................................................................................................

Signed ...............................................................................................................................................

Duly authorized to sign the Bid for and on behalf of .......................................................................

Date ....................................................................................................................................................

Request For Proposal (RFP) for the Supply of PDD Transformer.

Page 12

Appendix 2: Schedules of Rates and Prices

Price Schedules

General

1. The Request for Proposal will be a Lump Sum Quotation for completion of all specified works;

Electric Poles.

2. The Schedules generally describe the works to be performed. Bidders shall be deemed to have read

the RFP and visited the sites to ascertain the full scope of the requirements prior to filling in the

price. The entered price shall be deemed to cover the full scope as aforesaid, including overheads

and profit.

3. If bidders are unclear or uncertain as to any item, they shall seek clarification in writing prior to

submitting their bid.

Pricing

4. Prices shall be entered in indelible ink, and any alterations necessary due to errors, etc., shall be

initialled by the Bidder.

5. Bid prices shall be quoted in United States Dollars, in the manner indicated in the Bid Form of the

RFP. For each item, bidders shall complete each appropriate column in the respective Schedules,

giving the price breakdown as indicated in the Schedules.

6. Payments will be made to the Contractor in United States Dollars.

7. When requested by the Employer for the purposes of making payments or partial payments, valuing

variations or evaluating claims, or for such other purposes as the Employer may reasonably require,

the Contractor shall provide the Employer with a breakdown of any composite or lump sum items

included in the Schedules.


Page 13

ITEM DESCRIPTION OF

WORKS

QTY. UNIT COST Total Price USD

(Incl. Taxes and

Duties) 1 7036-5KVA 13.8, Pole Mount

Transformers 5 KVA

10 Sets.

2 7036-10KVA 13.8, Pole Mount

Transformers 10 KVA

5 Sets.

3 7036-15KV 13.8, Pole Mount

Transformer 15 KVA

15 Sets.


Transformers 25 KVA

5 Sets.

5 7036-37.5KVA 13.8, Pole

Mount Transformers 37.5 KVA

6 Sets.


Transformers 50 KVA

3 Sets.

7 7036-37.5KVA 13.8, Pole

Mount Transformers 37.5 KVA

4 Sets.

8 7036-50KVA, Pole Mount

Transformers 50 KVA

3 Sets.


Transformers 100 KVA

4 Sets.


Transformer 5 KVA

2 Sets.

TOTAL COST PROPOSAL

$_________________

Name of Bidder

Signature of Bidder


Page 14

REQUEST FOR PROPOSAL RFP PUCE19-009 SUPPLY OF PDD … · ANSI C57.12.90. C. TRANSFORMER TANKS Tanks...

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