2023_30 Single Phase Self_powered Reclosers.pdf

Request for Bid

Single Phase Self-powered Reclosers

#2023-30

Release Date: September 22th, 2023

City of Covington

2194 Emory Street

Covington, Georgia 30014

September 19th, 2023

The City of Covington is accepting bids for sixty (60) Single Phase Self-powered Reclosures.

Sealed bids must be received by the Purchasing Department, Attn: Scott Cromer in City Hall by

Friday, October 6th, 2023 at 10:00AM. Bid will be opened at 11:00AM

The City of Covington will consider the competency and responsibility of bidders in making the award. City of Covington reserves the right to reject any and all bids, to waive informalities and technicalities, to reject portions of the bids and to award contracts in a manner consistent with the

City and laws governing the State of Georgia.

SCOPE

Vendors are invited to submit a bid for the Purchase of sixty (60) Single Phase Self-powered

Reclosures as specified in “Exhibit A” for the City of Covington. Please contact Brandon Cole, bcole@cityofcovington.org for questions regarding the specifications.

Bids are due to the City of Covington Purchasing Department attention Scott Cromer located at

2194 Emory Street NW, Covington, Georgia 30014 by 10:00AM on Friday, October 6th, 2023. Late bids will not be accepted.

Please submit two (2) hard copies & one (1) copy on a USB flash drive to:

City of Covington Purchasing Department

Single Phase Self-powered Reclosers #2023-30

Attention Scott Cromer

2194 Emory Street NW

Covington, Georgia 30014

If using USPS, mail to:

P.O. Box 1527

Covington, GA 30015 mailto:bcole@cityofcovington.org

SPECIAL TERMS AND CONDITIONS

I. Submission of Bids

Bids shall be enclosed in sealed envelopes, addressed to the City of Covington Purchasing Department with the name of the bidder, the date and hour of opening. Bids must be received in the Purchasing Department, marked “Single Phase Self-powered Reclosers #2023-30” no later than the date and time (determined by the date/time stamp in the department) set forth in the Invitation to Bid. It is the sole responsibility of the bidder to ensure that his or her bid reaches the Purchasing Department. Any addenda should be enclosed in the sealed envelopes as well. The bids will be publicly opened and read at the time and place set forth in the Invitation to Bid.

Items offered must meet required specifications and must be of quality, which will adequately serve the use and purpose for which intended. Full identification of each item bid upon, including brand name, model, catalog number, etc. must be furnished to identify exactly what the bidder is offering. The bidder must certify that items to be furnished are new and that the quality has not deteriorated so as to impair its usefulness.

Unsigned bids will not be considered except in cases where bid is enclosed with other documents, which have been signed. The City will determine this.

City of Covington is exempt from federal excise tax and Georgia sales tax with regards to goods and services purchased directly by City of Covington. Suppliers and contractors are responsible for federal excise tax and sales tax, including any taxes for materials incorporated in City construction projects. Suppliers and contractors should contact the State of Georgia Sales Tax

Division for additional information. Tax Exemption Certificates will be furnished upon request.

Information submitted by a bidder in the bidding process shall be subject to disclosure after the public opening in accordance with the Georgia Open Records Act. Each page of proprietary information must be identified. Entire bid may not be deemed proprietary.

II. Award

Award will be made to the lowest responsive and responsible bidder. Conditional bids are not acceptable. The quality of articles to be supplied, their conformity with the specifications, their suitability to the requirements of the City, and the delivery terms will be taken into consideration in making the award. The City may make such investigations as it deems necessary to determine the ability of the bidder to perform, and the bidder shall furnish to the City all such information and data for this purpose as the City may request. The City reserves the right to reject any bid if the evidence submitted by, or investigation of such bidder fails to satisfy the City that such bidder is properly qualified to carry out the obligations of the contract. The City reserves the right to reject or accept any or all bids and to waive technicalities, informalities, and minor irregularities in bids received. The Bidder does not have the exclusive right to fill all of the City’s requirements for the goods or services awarded nor will the City be obligated to purchase the estimated annual quantity or any quantity contained in the bid document.

The City reserves the right to make an award as deemed in its best interest, which may include awarding a bid to a single bidder or multiple bidders; or to award the whole bid, only part of the bid, or none of the bid to single or multiple bidders, based on its sole discretion of its best interest. In case of tie bid, the award will be made as follows:

1. The bid will be awarded to the in-City vendor.

2. The bid will be awarded to the in-State vendor.

3. The bid will be awarded to the vendor with the lesser total dollar volume.

5000.03 - LOCAL VENDOR PREFERENCE

It shall be the policy of the City of Covington to give local vendors preference given that the quality, prior performance, availability of service, supplies and materials, delivery schedule and price are equal.

III. Joint Purchasing

The Newton County Shared Cost Initiative is an effort to lower the cost of goods and services purchased by public agencies in Newton County through use of shared resources and economies of scale. Accordingly, public agencies located in Newton County and participating in the shared cost initiative shall be allowed to purchase identical items and services at the same price and upon the same terms and conditions as established in this contract.

Participating agencies include the following: Newton County Board of Commissioners; Newton County Board of Education; Newton County Water and Sewerage Authority; the City of Covington; City of Oxford; City of Porterdale; Town of Mansfield; and Town of Newborn.

EXHIBIT “A”

SPECIFICATIONS

1) Scope of work

This specification covers the requirements associated with the design, manufacture, and testing of an outdoor, single phase, self-powered, vacuum interrupting recloser with built-in control and protection functionality. The recloser must operate under service conditions with ambient temperatures between -25°C and +60°C, and at altitudes less than 3,300 feet elevation. The warranty of the recloser shall be three years from the date of shipment.

2) Applicable standards

The product shall meet or exceed the below standards.

A. IEEE C2 – National Electric Safety Code B. IEEE C37.60/ IEC 62271 – IEEE/IEC International Standard - High-voltage switchgear and control gear – Part 111: Automatic circuit reclosers and fault interrupters for alternating current systems up to 38 kV

C. The manufacturing facility for the recloser must be ISO 9001 and ISO 14001 certified.

3) Ratings

A. Recloser voltage and current ratings:

a. Maximum Design Voltage: 27 kV

b. Lightning Impulse Level (BIL): 125 kV

c. Dry/Wet withstand 60Hz (1 min): 60 kV

d. Continuous & Load Break Current: 200 A

e. Frequency: 50/60 Hz

f. Rated Interrupting Current: 8 kA rms symmetrical

g. Rated short time current: 8 kA

h. Rated short time current Duration: 1 sec

i. Minimum Trip Pickup Current: 10 A

j. Mechanical Endurance (operations): 10,000

a. Operating duty Sequence: O-0.2sec...5sec-CO-2sec...5sec-CO-

2sec...20sec-CO-lockout

B. Standards compliance: IEEE C37.60/IEC 62271 single phase recloser classification

4) Construction

A. The top terminal connection shall include a connection/disconnection ring through which the recloser can be swung open and hung by the trunnion for a visual disconnect. The top terminal pad would serve as a line (source side) cable connection while the bottom terminal assembly connected to the trunnion would serve as the lower terminal connection.

B. Attached to the top terminal is the vacuum interrupter, embedded in a pole cast with an advanced Hydrophobic Cycloaliphatic Epoxy (HCEP) bushing. The interrupting medium shall be vacuum, which would be driven by a magnetic actuator mechanism. The pushrod from the vacuum interrupter would be linked to the magnetic actuator as well as to the manual closing mechanism.

C. The underside of the recloser shall include a visual indicator semaphore with daytime/nighttime visibility to clearly indicate recloser status from the ground level. The indicator shall be mechanically linked to the actuator to provide a true status of the vacuum interrupter.

D. The latching mechanism on the recloser shall positively latch on to the mounting clip on the frame to prevent the recloser from dropping open unless engaged via hot stick at the terminal ring.

E. The recloser design should ensure an arc-free operation during installation, opening or closing.

F. The recloser upper contact shall remain connected to the mount even after reaching lock-out state. Drop open feature shall not be acceptable. The recloser shall be disconnected and swung open via a hot stick if a visual break is desired.

G. A beacon (LED) shall be provided on the underside of the recloser for lockout indication.

The LED shall remain operational for up to 12 hours after lockout by maintaining its flashing state once every 4 seconds.

H. A mechanical operations counter shall be included on the underside of the recloser.

I. The recloser nameplate shall be laser-etched with voltage and current ratings and a serial number.

J. The recloser enclosure should be water resistant with IP65 ingress protection certification.

K. The single phase recloser shall be installed on a custom mounting frame. Existing fuse cutouts or any external mounting frames shall not be used. The custom mounting frame design shall offer the flexibility to add new recloser or retrofit any existing hydraulic single phase reclosers or fuse cut-outs.

5) Operating Mechanism

A. The recloser can be operated either electrically or mechanically. Electric open and close operation shall occur during the auto reclose cycle. Manual closing can be performed when the recloser control is powered off in an open/lockout state.

B. An operating handle shall enable a manual open, close and lockout reset. All mechanical operations shall be performed with a single motion of pushing the operating handle in the upward direction. The internal spring mechanism shall bring the operating handle to its original state.

C. The recloser shall allow up to three reclosing operations before entering a lockout state.

D. The recloser shall be maintenance free. No internal or external (detachable) batteries shall be employed for an alternate power source for status indication, operation, or communication.

E. The energy needed to power the electronics inside the recloser for protection, operation, monitoring and communication shall be harvested from the primary feeder current. The harvested energy shall be stored via internal capacitors to ensure that recloser is powered during the auto-reclose cycle and continue for up to 20 seconds after opening. A minimum of 5 ampere of load current shall be required to power the Wi-Fi module for local communication.

F. The self-powered device functionality shall require no pre-fault load current to perform reclosing or trip operation. During a fault condition, the recloser shall harvest the energy from the fault current, wake up the protection and control module and perform the reclosing operation. If the fault current is not high enough to perform a reclosing operation, then the recloser may trip open and enter a lockout state.

6) Modes of Operation

A. The recloser can be configured to function as a breaker, sectionalizer or a recloser. The recloser mode allows the device to offer reclosing duty with configurable auto reclose and protection functions. The breaker mode shall disable the reclosing functionality and enable the device to act like a protection relay. The sectionalizer mode disables all protection settings and allows the device to act as a switch.

B. The recloser shall include a built-in numerical relay for incorporating non directional overcurrent, short circuit protection during system fault conditions. The built-in relay shall allow the user to select a specific time delayed curve – definite time (DT), standard inverse definite minimum time (IDMT) or user defined IDMT curve through curve setting for each of its three (3) reclosing operations in its operating duty cycle. A variety of curves should be available for selection including the ANSI/IEEE curves, recloser curves (Electronic and

Hydraulic), fuse curves and custom curves with time dial, time delay and blocking.

C. C. The protection logic shall allow the end user to set up a cold load pickup and 2nd harmonic inrush blocking setting to avoid nuisance tripping from load pickup after a sustained outage.D.

D. The non reclose and/or a hot line tag (HLT) feature shall be activated by either engaging the non reclose (NR) lever physically or via web HMI interface. Activation of the NR lever mode enables the recloser to bypass the reclosing cycle and enter the lockout state. Alternatively, if HLT settings (pickup current and trip time multipliers) are entered and enabled, then the protection settings become more sensitive and the recloser enters the HLT mode.

7) Communications module and Web interface

A. The local communication shall occur over Wi-Fi. The range of Wi-Fi shall be up to 50 ft in direct line of sight. Wi-Fi can be activated with the NR lever or via light sensor. The Wi-Fi shall include auto disable function after a set configurable time upon detection of no communication activity.

B. A platform independent, web browser-based HMI interface shall allow users to program the recloser, monitor, perform control operation or download event data. No proprietary software, external communications module or USB dongles should be required to establish the local communication.

C. The web browser-based HMI should be accessible from any handheld device like mobile phone, tablet, or a laptop.

D. The web browser-based HMI features shall include external fault event records like pickup, protection trip, lockout, inrush detection, etc. Disturbance records and load profile oscillographies for post fault analysis shall be available in COMTRADE

(.DAT/.CFG) file format. Recloser self-supervision features like electrical operations counter, recloser internal diagnostics and breaker wear monitoring shall also be provided. A dashboard view should also be provided to offer a high-level breaker status and operation functions. These include measured primary current measurement, breaker status indication, virtual pushbuttons for open/close operation, and virtual select buttons for enable/disable auto reclose, non reclose/HLT mode, cold load pickup and flag reset option.

E. The recloser shall be provided with a built-in GPS receiver to allow time stamping the event log. Alternatively, system time can also be imported from the handheld device.

F. When the recloser is not mounted on the pole, a 12VDC aux power supply adapter should be utilized to power electronics within the recloser unit for programming or data retrieval purposes.

8) Accessories

The following accessories shall be included with the recloser assembly.

A. Wildlife protectors.

B. Disconnect and Bypass switch.

C. Surge arrestor bracket.

D. Double insulator mounting frame with options for 11.25”/12”/23.25” mount frame (for traditional hydraulic recloser retrofits), or cross-arm mount 20 Deg Fuse cutout style mount frame.

9) Routine tests

At a minimum, the following production tests shall be performed in accordance with ANSI/IEEE C37.60 standard for each recloser ordered.

A. Power frequency BIL withstand test.

B. Contact resistance test.

C. Open/close timing tests.

D. General functional test to verify unit operation.

10) Certified Test Report

The following Certified test data should be provided if requested for each recloser ordered.

A. Interrupter ratings.

B. Load current, line charging and cable charging current ratings.

C. Dielectric ratings (BIL, Dry and Wet withstand, and Partial Discharge).

D. Continuous current heat run ratings.

E. Mechanical Life.

11) Field service

A. The manufacturer of the recloser shall have regional service centers located within 2 hours flight time of all contiguous 48 states.

B. Service personnel shall be factory trained in installation assistance, commissioning and routine service of reclosers.

C. On-site training sessions shall be offered upon request at the customer facility.

BID FORM

Sixty (60) Single Self Phase Self-powered Reclosures

BID AMOUNT EACH $______________________

GRAND TOTAL FOR SIXTY (60) $____________________________________

ESTIMATED DELIVERY DATE __________________________________________

DEALER / VENDOR NAME ___________________________________________

BIDDER NAME ___________________________________________________

PHONE_______________________ EMAIL _____________________________

SIGNATURE __________________________________ DATE_________________