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Title: Rack protection monitor

Abstract

A hardwired, fail-safe rack protection monitor utilizes electromechanical relays to respond to the detection by condition sensors of abnormal or alarm conditions (such as smoke, temperature, wind or water) that might adversely affect or damage equipment being protected. When the monitor is reset, the monitor is in a detection mode with first and second alarm relay coils energized. If one of the condition sensors detects an abnormal condition, the first alarm relay coil will be de-energized, but the second alarm relay coil will remain energized. This results in both a visual and an audible alarm being activated. If a second alarm condition is detected by another one of the condition sensors while the first condition sensor is still detecting the first alarm condition, both the first alarm relay coil and the second alarm relay coil will be de-energized. With both the first and second alarm relay coils de-energized, both a visual and an audible alarm will be activated. In addition, power to the protected equipment will be terminated and an alarm signal will be transmitted to an alarm central control. The monitor can be housed in a separate enclosure so as to provide an interface between a power supply formore » the protected equipment and the protected equipment.« less

Inventors:
 [1]
  1. Wheaton, IL
Issue Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
OSTI Identifier:
873146
Patent Number(s):
6100807
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G08 - SIGNALLING G08B - SIGNALLING OR CALLING SYSTEMS
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rack; protection; monitor; hardwired; fail-safe; utilizes; electromechanical; relays; respond; detection; condition; sensors; abnormal; alarm; conditions; smoke; temperature; wind; water; adversely; affect; damage; equipment; protected; reset; mode; relay; coils; energized; detects; coil; de-energized; remain; results; visual; audible; activated; detected; sensor; detecting; addition; power; terminated; signal; transmitted; central; control; housed; separate; enclosure; provide; interface; supply; alarm signal; alarm condition; alarm relay; power supply; adversely affect; alarm conditions; abnormal condition; rack protection; protection monitor; normal condition; monitor utilizes; detection mode; /340/335/

Citation Formats

Orr, Stanley G. Rack protection monitor. United States: N. p., 2000. Web.
Orr, Stanley G. Rack protection monitor. United States.
Orr, Stanley G. Sat . "Rack protection monitor". United States. https://www.osti.gov/servlets/purl/873146.
@article{osti_873146,
title = {Rack protection monitor},
author = {Orr, Stanley G},
abstractNote = {A hardwired, fail-safe rack protection monitor utilizes electromechanical relays to respond to the detection by condition sensors of abnormal or alarm conditions (such as smoke, temperature, wind or water) that might adversely affect or damage equipment being protected. When the monitor is reset, the monitor is in a detection mode with first and second alarm relay coils energized. If one of the condition sensors detects an abnormal condition, the first alarm relay coil will be de-energized, but the second alarm relay coil will remain energized. This results in both a visual and an audible alarm being activated. If a second alarm condition is detected by another one of the condition sensors while the first condition sensor is still detecting the first alarm condition, both the first alarm relay coil and the second alarm relay coil will be de-energized. With both the first and second alarm relay coils de-energized, both a visual and an audible alarm will be activated. In addition, power to the protected equipment will be terminated and an alarm signal will be transmitted to an alarm central control. The monitor can be housed in a separate enclosure so as to provide an interface between a power supply for the protected equipment and the protected equipment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}