A TEST CIRCUIT FOR CAPACITOR BANK GROUNDING STICKS
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Course
CAPACITOR BANK GROUNDING STICK
Institution
CAPACITOR BANK GROUNDING STICK
AD-A251 121
MEMORANDUM REPORT BRL-MR-3980
BRFL
JUN 5 1992
QJC
A TEST CIRCUIT FOR
CAPACITOR BANK GROUNDING STICKS
C. R. HLMMR
K. A. MAHAN
C. E. HOLLANDSWORTH
JUNE 1992
APPROVED IOR MIJBUC RELEASP DISTRIBUTION IS UNLMrfED.
U.S. ARMY LABORATORY COMMAND
BALLISTIC RESEARCH LABO...
A TEST CIRCUIT FOR
CAPACITOR BANK GROUNDING STICKS
C. R.HLMMR
K. A. MAHAN
C. E. HOLLANDSWORTH
JUNE 1992
APPROVED IOR MIJBUC RELEASP DISTRIBUTION IS UNLMrfED.
U.S. ARMY LABORATORY COMMAND
BALLISTIC RESEARCH LABORATORY
ABERDEEN PROVING GROUND, MARYLAND
92-14806
, NOTICES
Destroy this report when it is no longer needed. DO NOT return it to the originator.
Additional copies of this report may be obtained from the National Technical Information Service,
U.S. Department of Commerce, 5285 Port Royal Road, Springfield, VA 22161.
The findings of this report are not to be construed as an official Department of the Army position,
unless so designated by other authorized documents.
The use of trade names or manufacturers' names in this report does not constitute indorsement
of any commercial product.
, Form Approved
REPORT DOCUMENTATION PAGE OMB No. 070-088
Public reporting burden for this collection of nformation is estimated to average 1 hour er redonse, including the time for reviewing instructions. searching existing data sources.
gatherng and maintaining the data needed, and completing and reviewing the collecton of information. Sendo omments rearding this burdin estimate or any other aspect of this
colecto of information. including suggestions for reducing this burden. to Washington Heaquartes Services. Oiretorate for Information Operations and Reports. 1215 Jeffemson
Davis Highway, Suite 1204. Arlington. VA 22202.4302. and to the Office of Management and Budget. Paperwork Reduction Project (0704-0188). Washington. DC 20S03.
1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED
I Jue 1992 Final. March 1991-November 1991
4. TITLE AND SUBTITLE S. FUNDING NUMBERS
A Test Circuit for Capacitor Bank Grounding Sticks
PR: 1L161102AH43
a. AUTHOR(S)
C. R. Hummer, K. A. Mahan, and C. E. Holndsworth
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION
REPORT NUMBER
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/ MONITORING
AGENCY REPORT NUMBER
U.S. Army Ballistic Research Laboratory
ATrN: SLCBR-DD-T BL-K-3980
Aberdeen Proving Ground, MD 21005-5066
11. SUPPLEMENTARY NOTES
12a. DISTRIBUTION /AVAILABIUTY STATEMENT 12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
13. ABSTRACT (Maximum 200 words)
After completion of a charge-discharge cycle, energy-storage capacitor banks must be shorted to ground and
the short maintained before the bank can be safely approached by an operator. Itis essential that the grounding
stick used by the operator to drain any residual charge have a proper electrical resistance. A test unit has been
constructed and tested which checks the grounding circuit for proper resistance and provides a visual indication
of its status. This unit also includes an auxiliary circuit which sounds an audible waming when an excessive
current passes through the grounding circuit. The enhanced measure of safety which such a circuit could provide
Is illustrated by discussion of a recent capacitor-bank accident at Aberdeen Proving Ground, MD.
14. SUBJECT TERMS 15. NUMBER OF PAGES
test equipment, circuit testers 21
16. PRICE CODE
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACT
OF REPORT OF THIS PAGE OF ABSTRACT
UNCLASSIFIED UNCLASSIFIED UNCLASSIFIED UL
NSN 7540-01-280-5500 Standard Form 298 (Rev 2-89)
Prescribed by ANSI SItC Z39.1
298-102
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