ML20035H069
| ML20035H069 | |
| Person / Time | |
|---|---|
| Issue date: | 04/23/1993 |
| From: | Aggarwal S NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Augenstein P TRANSMATION, INC. |
| References | |
| CON-FIN-L-2158 NUDOCS 9305030066 | |
| Download: ML20035H069 (3) | |
Text
. _.
APR 23133
. Mr. "aul Augenstein P
Vice-President, Engineering Transmation, Inc.
977 Mt. Read Blvd.
PO Box 60803 Rochester, NY 14606
Dear Mr. Augenstein:
Enclosed for your information is a copy of TR-2158-5/92, Rev.1, "A Test Plan for fault Testing of Nuclear Power Plant Electronic Isolation Devices," dated i
March 3, 1993 (Enclosure 1).
Brookhaven National Laboratory, under contract from NRC, has recently completed testing of a representative sample of isolation devices, including
~
Transmation Model 530 T-03, used in nuclear power plants. The tests were performed in accordance with the Test Plan, TR-2158-5/92, Rev.1.
Enclosed for your review and comment is a copy of the test results summary for Model 530 T-03 (Enclosure 2). Consideration will be given to your comments if received by May 28, 1993. The final NUREG/CR report will be issued in July 1993.
i Sincerely, Original s!;ned by Satish K. Aggarwai,hi;.l s r;.d f.W Program Manager Electrical and Mechanical Engineering Branch Office of Nuclear Regulatory Research
Enclosure:
i As stated cc:
R. Jouppi, Transmation J. Taylor, BNL (w/o encl)
DISTRIBUTION:
i L. Shao (w/o, encl)
J. Craig (w/o~ encl)
'M..Vagins (w/o encl)
J. Wermiel (w/ encl 2) i R. Bifer (w/ encl 2)
J. Vora (w/o enc 1)
PDR-(w/ enc 1 2)
[
i Concurrence:
EMEB:RES l
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ISOLATION DEVICE TEST PROGRAM FIN L2158 TEST RESULTS
SUMMARY
DEVICE:
Transmation TYPE:
Transformer Modulation with Voltage Input TEST RUN:
TRA-2-2 (1)
DATE COMPLETED: 02/13/93 DEVICE CHAR ACTERISTICS Barrier Resistance - > 0.97 Gohm Barrier Capacitance - Range 500-900 pfarads i
Functional Test - Device failed at 1.1 MCF (110 volts)
Energy Passed - s 4x10~' p Jou!:s (Damage Threshold = 100 Joules)
Summary Device tested functionally. Device was tested at maximum credible fault levels from 0-110 mits at 10% steps. Device failed functionally (would not transmit signal) at 110 volts.
The device maintained its isolation characteristics throughout testing. Greatest energy passed was 4x10~5 microjoules, well below the threshold value of 100 microjoules. Energy readings not available after 0.8 MCF. Barrier resistance was measured directly as either greater than 1.05 Gotxn or some particular value less than 1.05 Gohm at all step levels.
3.
u ISOLATION DEVICE TEST PROGRAM FIN-L2158 MAKE: Transmation'
- MODEL: 530T-03
' S/N: 6671601 TEST RUN: TRA-2-2(1) DATE: 2/13/93 1/2 Cycle BARRIER Funct Energy TEST RESISTANCE BARRIER CAPACITANCE Test
-Passed Run MCF R > 1.05 Freqncy Voltage Voltags open ekt DUTeon iso barrier No. Lvl
.Gohm Appl'd open ckt acts DUT
'ma ma pfarads P/F microjoules (1) 0.1
> 1.05 50000 2.97 2.86 0.55 0.99 514.4 P
0.0
'(2) 0.2
> 1.05 50000 2.97 2.97 0.55 1.03 507.9 9
0.0 (3) 0.3
> 1.05 50000 2.97 2.84 0.55 1.04 569.2 F
2.6E45 (4) 0.4
> 1.05 50000 2.97 2.85 0.55 1.03 557.5 P
8.0E-05 (5) 0.5
> 1.05 50000 2.97 2.84 0.55 1.04
- 575.3 P
8.0E-05 l-(6) 0.6
> 1.05 50000 2.97 2.85 0.55 1.02 555.0 P
1.1E-05 l
(7) 0.7
> 1.05 50000 2.97 2.84 0.55 1.04 571.6 P
8.0E-06 l
(8) 0.8
' > l 35 50000 2.97 2.74 035 1.27 891.2 P
2.0E43 I
(9) 0.9
> 1.05 50000 2.97 2.84 0.55 1.04 573.8 P
1.4E-03
~(10) ~ 1.0
' O.971
.50000
. 2.95 2.83 0.54 1.03 569.3 P
4.1E-03
~(11) 1.1
> 1.05 50000 2.95 2.83 0.55 1.03 574.4 F
7.4E-04 (12)
> 1.05
'50000 2.95 2.72 0.55 1.27 893.2 F
Notes:
Gross barrier resistance measured at all MCF levels.
energy Barrier resistance readings denoted as greater than 1.05 Gohm damage = 100 f
. or particular value less than.
level l
Device failed functional test after being exposed to 1.1xMCF.
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