SON for TPS hardware and install.pdf

PDF 137 KB Posted Nov 4, 2025

Attached to: Eaton 93PM 50KW UPS and Installation for NEXRAD Sites
Solicitation number: 142082-25-0247
Issued by: Department of Commerce National Oceanic and Atmospheric Administration

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Written by GovTribe AI · Nov 4, 2025

This Statement of Need (SON) details a requirement by the National Oceanic and Atmospheric Administration's (NOAA) National Weather Service to replace the Transition Power Source (TPS) for 158 Next Generation Weather Radars (NEXRAD) across the country. The current TPS, which is 20 years old and no longer manufactured, needs replacement to ensure continuous radar operation during power fluctuations, storms, and outages. The solicitation calls for two primary contract line items (CLINs):

CLIN 0001 requires an Eaton 93M UPS with sidecar and battery cabinet, and CLIN 0002 requires an Eaton 93PM UPS with MBM sidecar and battery cabinet. Key requirements include a 15-year life cycle, ability to receive and supply three-phase 208VAC power, online double conversion capability, and specific mechanical and installation specifications. The contractor must remove and dispose of existing UPS units, install new units following detailed instructions, connect communication cables, and have an Eaton Customer Service Engineer commission the system before power is applied. The installation process involves precise steps for removing old equipment, transporting and positioning new units, connecting power and communication cables, and ensuring all alarm and relay signals are correctly configured.

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STATEMENT OF NEED (SON)

Transition Power Source for the NEXRAD Weather Radar

Background The National Oceanic and Atmospheric Administration’s (NOAA) National Weather Service (NWS) operates 158 Next Generation Weather Radars (NEXRAD) across the country. These radars depend on electrical power to operate. The electrical power generally comes from the commercial power grid. The power grid is susceptible to power fluctuations due to a variety of factors including weather and other customers. The current Transition Power Source (TPS) is a four wire, three phase, dual conversion, and 50KVA uninterruptible power supply that supplies clean power to the WSR-88D NEXRAD radar. The TPS also supplies the power to the radar while transitioning between utility and generator power during a power outage. The TPS also conditions power to prevent damaging NEXRAD equipment during power surges and brownouts. The TPS is composed of three different parts: the UPS, the battery cabinet, and the maintenance bypass switch. The NEXRAD has two different versions of the TPS. One version has a maintenance bypass switch on the wall and the other has the maintenance bypass switch as a “side car” attached to the UPS. The current TPS uses a Supervisory Contact Module (SCM) that interfaces the UPS to the building alarms. These alarms include hydrogen detection, 80 degree Fahrenheit, and a 90 degree Fahrenheit temperature signal.

Discussion The Transition Power Source (TPS) for the NEXRAD needs to be replaced due to obsolescence. The current TPS is 20 years old and is no longer manufactured, sold, or maintained by the original manufacturer. A replacement for the TPS is needed in order to keep the NEXRAD operational during storms, power surges and outages.

Requirements:

CLIN 0001:

Eaton 93M UPS and sidecar w/o MBM and Battery cabinet with batteries installed at the following locations:(See installation instructions below) QTY: TBD SEE EFFECTIVITY

Must meet the following requirements:

Life Cycle support

(1) Shall be repairable by the manufacturer or a vendor other than the manufacturer.

(2) Shall have a life cycle of at least 15 years.

(3) Shall have maintenance documentation provided.

(4) Shall have a training program for maintenance available for a later date.

Power

(1) Shall be capable of receiving three phase, 208VAC power at 60 Hz without damage to the source

(2) Shall supply three phase, 208VAC power at 60 Hz to the radar.

(3) Shall be an online double conversion Uninterruptible Power Supply (UPS).

(4) Shall be a four wire system: three power wires, a neutral, and a separate ground wire. The ground wire and neutral should be separated, or be separable.

(5) Shall be rated to supply at least 50 KVA of power.

(6) Shall have a total harmonic distortion (THD) of 5% or less

Features

(1) Shall have a modular line replaceable unit (LRU) concept that can be field replaceable.

(2) Shall have the capability to isolate failures to the LRU.

(3) Shall have a modular LRU that can be individually procured.

(4) Shall have a screen able to display all alarms, failures, and vital information.

(5) Shall have programmable shut off capabilities.

(6) Shall have programmable bypass capabilities.

(7) Shall have an Eaton Industrial Gateway Card (INDGW-M2) that allows for external monitoring.

(7.1) The network card shall be removable.

(7.2) The network card shall be modular.

(8) Shall have an Eaton Industrial Relay Card (INDRELAY-MS).

(8.1) The relay card shall accept a minimum of 5 inputs.

(8.2) The relay card shall be modular.

Mechanical

(1) Shall not exceed a physical footprint of 96” H x 72” W x 52” D.

(2) Shall have a manufacturer’s clearance requirement of 96” H x 72” W x 92” D.

(3) Clearance requirements shall include 36” in front of the system.

(2) Shall have a top cable entry.

(4) Shall have an operating temperature of 10 - 40 C.

(5) Shall be capable of operating at a full rating of at least 50KVA up to an elevation of at 1500 meter (MSL).

(6) Shall be capable of operating at a relative humidity of 20% - 80%.

Battery Cabinet

(1) Shall hold forty (40) 12 volt batteries.

(2) Shall be capable of holding a 20KW load for a minimum of 30 minutes.

(3) Shall be designed to mechanically and electrically connect to the UPS.

(4) Shall be connected to the UPS sidecar on the right side of the UPS.

Sidecar

(1) Shall allow for top cable entry.

(2) Shall be mounted on the right side of the UPS.

(3) Shall be capable of connecting to the battery cabinet.

Earthquake Protection

(1) Shall come with all necessary hardware to secure the UPS from earthquakes.

Documentation

(1) Vendor shall secure the rights from Eaton to publish the Eaton Maintenance manual on the Radar Operation Website.

CLIN 0002:

Eaton 93PM UPS and MBM sidecar and Battery cabinet with batteries installed at the following sites. Qty: TBD SEE EFFECTIVITY

Must meet the following requirements:

Life Cycle support

(1) Shall be repairable by the manufacturer or a vendor other than the manufacturer.

(2) Shall have a life cycle of at least 15 years.

(3) Shall have maintenance documentation provided.

(4) Shall have a training program for maintenance available for a later date.

Power

(1) Shall be capable of receiving three phase, 208VAC power at 60 Hz without damage to the source

(2) Shall supply three phase, 208VAC power at 60 Hz to the radar.

(3) Shall be an online double conversion Uninterruptible Power Supply (UPS).

(4) Shall be a four wire system: three power wires, a neutral, and a separate ground wire. The ground wire and neutral should be separated, or be separable.

(5) Shall be rated to supply at least 50 KVA of power.

(6) Shall have a total harmonic distortion (THD) of 5% or less

Features

(1) Shall have a modular line replaceable unit (LRU) concept that can be field replaceable.

(2) Shall have the capability to isolate failures to the LRU.

(3) Shall have a modular LRU that can be individually procured.

(4) Shall have a screen able to display all alarms, failures, and vital information.

(5) Shall have programmable shut off capabilities.

(6) Shall have programmable bypass capabilities.

(7) Shall have an Eaton Industrial Gateway Card (INDGW-M2) that allows for external monitoring.

(7.1) The network card shall be removable.

(7.2) The network card shall be modular.

(8) Shall have an Eaton Industrial Relay Card (INDRELAY-MS).

(8.1) The relay card shall accept a minimum of 5 inputs.

(8.2) The relay card shall be modular.

Mechanical

(1) Shall not exceed a physical footprint of 96” H x 72” W x 52” D.

(2) Shall have a manufacturer’s clearance requirement of 96” H x 72” W x 92” D.

(3) Clearance requirements shall include 36” in front of the system.

(2) Shall have a top cable entry.

(4) Shall have an operating temperature of 10 - 40 C.

(5) Shall be capable of operating at a full rating of at least 50KVA up to an elevation of at 1500 meter (MSL).

(6) Shall be capable of operating at a relative humidity of 20% - 80%.

Battery Cabinet

(1) Shall hold forty (40) 12 volt batteries.

(2) Shall be capable of holding a 20KW load for a minimum of 30 minutes.

(3) Shall be designed to mechanically and electrically connect to the UPS.

(4) Shall be connected to the UPS on the right side of the UPS.

Maintenance Bypass Module

(1) Shall allow for top cable entry.

(2) Shall be mounted on the left side of the UPS.

(3) Shall be capable of connecting to the battery cabinet.

(4) Shall have three breakers that allow the input power to bypass the UPS.

(5) Shall be designed so that when placed into bypass, power to the radar is not interrupted.

Earthquake Protection

(1) Shall come with all necessary hardware to secure the UPS from earthquakes.

Documentation

(1) Vendor shall secure the rights from Eaton to publish the Eaton Maintenance manual on the Radar Operation Website.

CLIN 003: Eaton 93M UPS and sidecar w/MBM and Battery cabinet without batteries shipped to NLSC for Spares (NO INSTALL)

SHIP TO:

NLSC

Installation Instructions of CLIN 001:

Installation

The on-site government personnel will run a pre-installation check to verify the status of the radar. The contractor shall observe the pre-installation check. Any alarms that the radar has shall be noted, but they will not affect the start of UPS installation.

The contractor shall travel to each radar site in the site effectivity list and shall remove and dispose of the old UPS in accordance with standard practices and regulations and shall install the new Unit.

Power Off old UPS

- Legacy UPS without the integrated Maintenance Bypass (See site effectivity list for site details)

- power the old unit down.

- TPS Control Panel UD62A6

- Turn Mode switch to bypass. Wait for ups to go to internal bypass.

- Turn Battery switch to the OFF position.

- Turn CB1 to OFF position.

- Turn UD61A5S2 Maintenance Bypass Fused Disconnect breaker to the ON position.

- Turn UD61A5S3 Generator output Fused Disconnect to the OFF position.

- Turn UD61A5S1 Motor Input Fused Disconnect to the OFF position.

- Apply lockout/tagout to the input (UD61A5S1) and output

(UD61A5S3) switch.

- Turn UD63CB1 breaker to the OFF Position

- Verify no voltage on UPS side of the input (UD61A5S1) and output (UD61A5S3).

- Power the radar down to disconnect the TPMS shelter from the utility power in order to run the input and output power cables. For the Type 5 - 8 shelter, disconnect the UPS side of the input and the output junction box.

- Power the radar down and lockout/tagout UD10TPS1.

Disassembly old UPS

- Remove communication cables that run from UPS’s TB1 to the Alarm termination panel, the hydrogen Detector, and the high temp sensor that are on the shelter wall.

TB1 pin number Cable Label SIgnal name

1 CC32-1 Generator ON

2 CC32-2 Generator ON (rtn)

3 BB5-1 Hydrogen Detector

4 BB5-2 Hydrogen Detector (rtn)

5 CC32-3 On Maintenance Bypass

6 CC32-4 On Maintenance Bypass (rtn)

7 BB5-3 High temp (90)

8 BB5-4 High temp (90) (rtn)

- Disconnect the input (E6,E7,E8) and output (E9, E10,E11) power cables and the neutral and ground cables.

- Disconnect the Battery power cables.

- Remove the batteries from the battery cabinet.

- disconnect the battery cabinet from the UPS.

- Remove the battery cabinet from the shelter.

- Remove the UPS from the shelter.

The contractor shall dispose of the old unit according to local requirements. All batteries shall have a certificate of disposal.

The contractor shall remove the Supervisory Contact Module (SCM) from the wall and remove all of the associated cables. Cables CC31-1 through 24 will be removed from the shelter.

The contractor shall remove the 3/4” conduit labeled BB34 and plug the hole in the junction box.

Install the new unit

The contractor shall remove any debris after the removal of the old unit.

The contractor shall place the new unit into the TPS shelter. The contractor will need to provide the capability to transport the UPS over #57 crushed stones that make up the parking lot and surround the shelter. There is a concrete sidewalk that exists between the shelters; it is approximately 48 inches wide. The shelter doors are approximately 48 inches wide and approximately 6 inches off the ground. The unit will need to be lifted straight up and can not be tilted more than 11 degrees off the vertical. The new unit comes in two pieces, the UPS/sidecar and the Battery cabinet. With the batteries installed, each cabinet weighs no more than 2000 pounds. Some sites may require the surrounding fence to be temporarily removed. Before the contractor leaves the site, they are responsible for replacement of the fence and any grounding or lightning protection cables that were removed or altered.

The contractor may remove the battery trays from the battery cabinet, but the batteries must stay in their trays. There are 8 batteries per tray and each tray weighs approximately 300 to 400 lbs

The contractor shall run new input and output power cables as needed. Splicing the cables will not be allowed. There are five 4/0 AWG input power cables and five 1/0 AWG output power cables. The cable runs will be approximately 30 ft long.

The power cables shall be connected with a compression lug on the UPS end.

The contractor shall install the unit in accordance with manufacturer instructions. (see 93PM-L Installation and operation manual, part number P-164000711)

The contractor shall install seismic protection that comes with the unit.

The contractor shall run new red 600V 14 AWG communication cables from the Alarm termination panel, the hydrogen detector, and the high temperature sensor to the new UPS building alarms and industrial relay. The new communication cables shall be equipped with a crimp pin connector on the UPS end and a spade connector on the Alarm termination board end.

The contractor shall label the cables in table 1 and tables 2 with the labels provided to them by the government.

Table 1

Building Alarm terminations on the UPS

Cable label Alarm termination Panel

Signal Name Action

10 - Bldg Alarm

60W1 (Type 1-7)

60W17 (Type 8)

60A6 TB1-23 Generator ON When the generator is ON the UPS limits battery charging capability

9 - Bldg Alarm 1 60W2 (Type 1-7)

60W18 (Type 8)

60A6 TB1-24 Generator ON (rtn)

8 - Bldg Alarm 2 60W7 (ALL) 60A6 RY2 Hydrogen Detector

Remote Go to Bypass

7 - Bldg Alarm 2 60W8 (ALL) 60A6 RY2 Hydrogen Detector (rtn)

6 - Bldg Alarm 3 60W3 (Type1-7) 60A6 TB1-25 On Maintenance Bypass

Maintenance Bypass Enabled

5 - Bldg Alarm 3 60W4 (Type 1-7) 60A6 TB1-26 On Maintenance Bypass (rtn)

4 - Bldg Alarm 4 60W9 (ALL) 60A2A8 Y High Temp (90) Remote Go to

3 - Bldg Alarm 4 60W10 (ALL) 60A2A8 R High Temp (90)

The contractor shall connect relay signals for UPS in Maintenance Bypass and System Normal.

Table 2

IRC relay Cable label Signal Name Action

K1 Normal Open 60W11 60A6 TB1-19 System Normal When UPS is in bypass K1 closes causing a short on pins 19 & 20 of TB1 in the alarm termination cabinet

K1 COM 60W12 60A6 TB1-20 System Normal

K4 Normal Closed 60W5 60A6 TB1-17 ON internal

When UPS is in bypass K4 opens causing an open on pin 17 & 18 of TB1 in the alarm termination cabinet

K4 COM 60W6 60A6 TB1-18 On internal

The contractor shall install a CAT 6 lan cable that runs from the UPS, in the TPMS shelter, to the RDA in the RDA shelter.

- The cable length is approximately 100 feet.

- The cable shall be blue.

- The cable shall be shielded.

- The cable shall be plenum rated.

- Each end shall be terminated with an RJ45 module jack in accordance with the T568B wiring standard.

- The cables shall be labeled as W1010P1 on the UPS end and W1010P2 on the RDA end.

- The P1 end of the cable will be plugged into the Ethernet card (UD62A101A1) on the

UPS and the P2 end will be connected to the RDA Cabinet 90CP14

After the install, the contractor shall connect the unit to the power grid. No power is to be applied to the UPS until it has been commissioned by an Eaton Customer Service Engineer.

The contractor shall schedule a Eaton Customer Service Engineer to commission the UPS before power is applied to the unit.

The contract shall ensure that the Eaton Customer Service Engineer assigns the correct labels and actions to the alarms and relays according to the table 1 and 2.

After installation, the unit shall be tested to verify installation and operation. These tests will be made up of both manufacturer acceptance tests and ROC acceptance tests.

The contractor shall document any deviation from the standard installation in the as-built drawing These drawings will be sent back to the Radar Operation Center after each install.

The contractor shall take before and after install digital pictures of each of the interior and exterior walls of the TPMS shelter.

The contractor shall take digital pictures of the unit without any of the protective covers on the front, the top front of the unit where the communication cables are connected .

The contractor shall send all the digital photographs to the Radar Operation Center before the contractor levels the site.

Installation instructions of CLIN 002:

Installation

The on-site government personnel will run a pre-installation check to verify the status of the radar. The contractor shall observe the pre-installation check. Any alarms that the radar has shall be noted but they will not affect the start of UPS installation.

The contractor shall (1) travel to each radar site in the site effectivity list and shall (2) remove and (3) dispose of the old UPS in accordance with standard practices and regulations and shall () install the new Unit.

Power Off old UPS

- Legacy UPS with the integrated Maintenance Bypass

- power the old unit down.

- TPS Control Panel UD62A6

- Turn Mode switch to bypass. Wait for ups to go to internal bypass

- Turn Battery switch to the OFF position.

- Turn CB1 to OFF position

- Turn UD64CB2 MBB breaker to the ON position

- Turn UD64CB3 UOB breaker to the OFF position

- Turn UD64CB1 UBI breaker to the OFF position.

- Apply lockout/tagout to the input (UD61A5S1) and output

(UD61A5S3) switch

- Turn UD63CB1 breaker to the OFF position

- Verify no voltage on UPS side of the input (UD61A5S1) and output (UD61A5S3)

- Power the radar down to disconnect the TPMS shelter from the utility power in order run the input and output power cables. For the Type 5 - 8 shelter, disconnect the UPS side of the input and the output junction box.

- Power the radar down and lockout tagout UD10TPS1

Disassembly old UPS

- Remove communication cables that run from UPS’s TB1 to the Alarm termination panel, the hydrogen Detector, and the high temp sensor that are on the shelter wall.

TB1 pin number Cable Label SIgnal name

1 CC32-1 Generator ON

2 CC32-2 Generator ON (rtn)

3 BB5-1 Hydrogen Detector

4 BB5-2 Hydrogen Detector (rtn)

5 CC32-3 On Maintenance Bypass

6 CC32-4 On Maintenance Bypass

7 BB5-3 High temp (90)

8 BB5-4 High temp (90) (rtn)

- Disconnect the input (E1,E2,E3) and output (E13, E14,E15) power cables and the neutral and ground cables.

- Disconnect the Battery power cables

- Remove the batteries from the battery cabinet.

- disconnect the battery cabinet from the UPS.

- Remove the battery cabinet from the shelter.

- Remove the UPS from the shelter.

The contractor shall dispose of the old unit according to local requirements. All batteries shall have a certificate of disposal.

The contractor shall remove the Supervisory Contact Module (SCM) from the wall and remove all of the associated cables. Cables CC31-1 through 24 will be removed from the shelter.

The contractor shall remove the 3/4” conduit labeled BB34 and plug the hole in the junction box.

Install the new unit

The contractor shall (2) remove any debris after the removal of the old unit.

The contractor shall place the new unit into the TPS shelter. The contractor will need to provide the capability to transport the UPS over #57 crushed stones that make up the parking lot and it surrounds the shelter. There is a concrete sidewalk that exists between the shelters; it is approximately 48 inches wide. The shelter doors are approximately 48 inches wide and approximately 6 inches off the ground. The unit will need to be lifted straight up and can not be tilted more than 11 degrees off the vertical. The new unit comes in two pieces, the UPS/sidecar and the Battery cabinet. With the batteries installed, each cabinet weighs no more than 2000 pounds. Some sites may require the surrounding fence to be temporarily removed. Before the contractor leaves the site, they are responsible for replacement of the fence and any grounding or lightning protection cables that were removed or altered.

The contractor may remove the battery trays from the battery cabinet, but the batteries must stay in their trays. There are 8 batteries per tray and each tray weighs approximately 300 to 400 lbs

The contractor shall run new input and output power cables as needed. Splicing the cables will not be allowed. We anticipate that only the sites without the Maintenance Bypass Module (~91) will need new power cables. There are five 4/0 AWG input power cables and five 1/0 AWG output power cables. The cable runs will be approximately 30 ft long.

The power cables shall be connectorized with a compression lug on the UPS end.

The contractor shall install the unit in accordance with manufacturer instructions. (see 93PM-L Installation and operation manual, part number P-164000711)

The contractor shall install seismic protection that comes with the unit.

The contractor shall label the cables in table 1 and tables 2 with the labels provided to them by the government.

Table 1

Building Alarm terminations on the UPS

Cable label Alarm termination Panel

Signal Name Action

10 - Bldg Alarm

60W1 (Type 1-7)

60W17 (Type 8)

60A6 TB1-23 Generator ON When the generator is ON the UPS limits battery charging capability

9 - Bldg Alarm 1 60W2 (Type 1-7)

60W18 (Type 8)

60A6 TB1-24 Generator ON

8 - Bldg Alarm 2 60W7 (ALL) 60A6 RY2 Hydrogen Detector

Remote Go to Bypass

7 - Bldg Alarm 2 60W8 (ALL) 60A6 RY2 Hydrogen Detector (rtn)

6 - Bldg Alarm 3 60W3 (Type1-7) 60A6 TB1-25 On Maintenance

Maintenance Bypass Enabled

5 - Bldg Alarm

60W4 (Type 1-7) 60A6 TB1-26 On Maintenance Bypass (rtn)

4 - Bldg Alarm

60W9 (ALL) 60A2A8 Y High Temp (90) Remote Go to

3 - Bldg Alarm 4 60W10 (ALL) 60A2A8 R High Temp (90)

The contractor shall () connect relay signals for UPS in Maintenance Bypass and System Normal.

Table 2

IRC relay Cable label Signal Name Action

K1 Normal Open 60W11 60A6 TB1-19 System Normal When UPS is in bypass K1 closes causing a short on pins 19 & 20 of TB1 in the alarm termination cabinet

K1 COM 60W12 60A6 TB1-20 System Normal

K4 Normal Closed 60W5 60A6 TB1-17 ON internal

When UPS is in bypass K4 opens causing an open on pin 17 & 18 of TB1 in the alarm termination cabinet

K4 COM 60W6 60A6 TB1-18 On internal

The contractor shall install a CAT 6 lan cable that runs from the UPS, in the TPMS shelter, to the RDA in the RDA shelter.

- The cable length is approximately 100 feet.

- The cable shall be blue.

- The cable shall be shielded.

- The cable shall be plenum rated.

- Each end shall be terminated with an RJ45 module jack in accordance with the T568B wiring standard.

- The cables shall be labeled as W1010P1 on the UPS end and W1010P2 on the RDA end.

- The P1 end of the cable will be plugged into the Ethernet card (UD62A101A2) on the