Loren Data's SAM Daily™

FBO DAILY ISSUE OF FEBRUARY 26, 2005 FBO #1188
MODIFICATION

66 -- Bipolar DC Power Supply Four Quadrant Capacity

Notice Date

2/24/2005
 

Notice Type

Modification
 

NAICS

335311 — Power, Distribution, and Specialty Transformer Manufacturing
 

Contracting Office

Department of Commerce, National Institute of Standards and Technology (NIST), Acquisition and Logistics Division, 100 Bureau Drive, Building 301, Room B129, Mail Stop 3571, Gaithersburg, MD, 20899-3571
 

ZIP Code

20899-3571
 

Solicitation Number

SB134105Q0316
 

Response Due

3/3/2005
 

Archive Date

3/18/2005
 

Small Business Set-Aside

Total Small Business
 

Description

The purpose of this amendment is to allow for Questions & Answers and to extend the due date for quotes through March 3, 2005, 3:00:00 Eastern Standard Time (EST). QUESTION: Your bid mentioned bi-polar, is that a system that can output in both a positive and a negative direction? What is the timing duration of each direction ANSWER: Yes, it should be able to output in both positive and negative directions. The power supply will be used to operate a superconducting magnet, so it should be able to handle a large inductive load, few henries. In normal operation, we will ramp the magnet up in 50s, stay up for a few seconds, ramp down and up in 100s (possibly reversing directions), and similar sequences follow. QUESTION: Also, your offering stated that you need four quadrants, is that four separate sets of contacts (Anode and Cathode)? ANSWER: It should have only two contacts. Four quadrant means the ability to switch the polarity of voltage and current electronically. For example, when we first use +15V to ramp the magnet from 0A to +300A (first quadrant), then it can reserve it?s polarity use -15V to ramp the magnet down from 300A to 0A (fourth quadrant). QUESTION: Are the 300 amps per quadrant? ANSWER: 300A will the maximum positive and negative current the power supply will output. This is true whichever quadrant the power supply will be operated in. The power supply will be used to operate a superconducting magnet (large inductive loads), and a brief explanation of four quadrant. All other terms and conditions of this combined synopsis/solicitation remain the same.
 

Place of Performance

Address: 100 Bureau Drive, Gaithersburg, MD,

Zip Code: 20899-0001

Country: USA
 

Record

SN00757563-W 20050226/050224211846 (fbodaily.com)
 

Source

FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)

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