UPS Questions.pdf

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Replacement of UPS system for the Southwest Fisheries Science Center (SWFSC) at La Jolla Laboratory
Solicitation number
1305M325Q0183
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The document is a Question and Answer (Q&A) file for a UPS End of Life Replacement project. The Q&A addresses three key technical details about the existing Uninterruptible Power Supply (UPS) system: (1) the Automatic Transfer Switch (ATS) has a switched neutral and is a Kohler model with 4 Pole/4 Wire configuration, manufactured in 03/11, (2) the current UPS system's serial numbers are provided - UPS Serial: EE382CAB01, Battery Cabinet Serial: FE382DAA02, with a bypass panel being an EATON Pow-R-Line PRL4 Panelboard with specific electrical specifications, and (3) confirmation that this is a standalone UPS unit with no other units on site. The technical specifications include voltage (480/60 Hz), panel details (480Y/277V), and specific electrical characteristics like panel amps, phase, and neutral specifications.

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Uninterruptible Power Supply (UPS) End of Life Replacement

Questions

Q1: On the Automatic Transfer Switch (ATS) upstream to the UPS, does it have a solid neutral opposed to a switched neutral?

A1: The ATS has a switched neutral. The specifications for the ATS are listed below and the manufacture date is 03/11.

Kohler ATS

KCS – DMVA – 0260B

Model: KOHLER Mechanism: Standard (Time Based) Transition: Standard

Controls: MPAC 1500 Voltage: 480/60 Hz Poles/Wires: 4 Pole / 4 Wire, Switched Neutral Enclosure: NEMA 1

Q2: What are the serial numbers for the current UPS, battery cab, and bypass panel?

A2: - UPS Serial: EE382CAB01

- Battery Cabinet Serial: FE382DAA02

- Bypass Panel is the EATON Pow-R-Line PRL4 Panelboard, specifications are as follows:

o Panel Type: PRL4B o Volts: 480Y/277V o Manufacture Date: 9/14/2011 o Box Cat: BX2473 o Job Number: RN368106-10 o Panel Amps: 150A o Phase 3 o Wire 4 o Neutral Amps: 300A o Neutral Volts: 277V o Box Type: 1

Q3: Is in fact a standalone UPS and not installed in parallel with another unit?

A3: Confirmed, there are no other units on site. This is a standalone unit.

File details come from the government source that posted it. Updated .