ML20035H066
| ML20035H066 | |
| Person / Time | |
|---|---|
| Issue date: | 04/23/1993 |
| From: | Aggarwal S NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Simpkins W TECHNOLOGY FOR ENERGY CORP. |
| References | |
| CON-FIN-L-2158 NUDOCS 9305030059 | |
| Download: ML20035H066 (5) | |
Text
.
APR 231993 i
I J
Mr. William Simpkins Vice-President, Engineering i
Technology for Energy Corp.
On Energy Center, Lexington Dr.
P.b. Box 22996 i
Knoxville, TN 37933-0996
Dear Mr. Simpkins:
Enclosed for your information is a copy of TR-2158-5/92, Rev.1, "A Test Plan l
for Fault Testing of Nuclear Power Plant Electronic Isolation Devices," dated March 3, 1993 (Enclosure 1).
Brookhaven National Laboratory, under contract from NRC, has recently completed testing of a representative sample of isolation devices, including TEC Models 981-1-C and 159-2-F, used in nuclear power plants. The tests were performed in accordance with the Test Plan, TR~?l58-5/92, Rev.1.
Enclosed for your review and comment is a copy of the test results summary for TEC Models (Enclosure 2). Consideration will be given to your comments if i
received by May 28, 1993. The final NUREG/CR report will be issued in July 1993.
l Sincerely, KY Satish K. Aggarwal, Program Manager Electrical and Mechanical Engineering Branch Office of Nuclear Regulatory Research
Enclosure:
As stated cc: Carol Bailey J. Taylor, BNL (w/o encl)
DISTRIBUTION:
L. Shao (w/o, encl)
J. Craig (w/o encl)
~M..Vagins (w/o encl)
J. Wermiel (w/ enc 1 2)
R. Batr (w/ encl 2) 4 J. Vora (w'o encl).
PDR (w/ enc 1 2) l Concurrence:
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/V 9305030059 930423 PDR ORG NREA PDR
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- S ISOLATION DEVICE TEST PROGRAM FIN L215S TEST RESULTS
SUMMARY
DEVICE:
Technology for Energy Corp. 981-1-C TYPE:
Transformer Modulation with Voltage Input TEST RUN:
TD-4-3A DATE COMPLETED: 1/29/93 DEVICE CHARACTERISTICS Barrier Resistance - Range 0* - 488 Gohms Barrier Capacitance - Range 11-347 pfarad Functional Test - Ch. A failed at 0.2, MCF, Ch. B, Ch. C, and Ch. D passed all input levels Energy Passed - s 10d Joules (Damage Threshold = 100 p Joules)
Summary Device was multi channel (4). Fault applied to Ch. A. Ch. A. Ch. B, Ch. C, and Ch. D checked functionally. Device was tested at Maximum Credible Fault levels from 0-130 volts at 10% steps.
Ch. A failed functionally (would no transmit signal) between 10 and 20 volts. Ch. B, Ch. C, and Ch. D passed at all input levels. The device maintained its isolation characteristics throughout testing, and passed only negligible energy well below the damage threshold level.
Notes Barrier Resistance readings behaved erratically after DUT was exposed to 0.7 x MCF.
l
ISOLATION DEVICE *EST PROGRAM FIN-L2158 MAKE:
Technology for Energy Corp.
MODEL:
981 1-C S/N:
08085 TEST RUN: TD-4-3A DATE: 1/29/93 Ch A Ch B Ch C Ch D 1/2 Cycle Funct Funct Funct Funct Energy Test l
RESISTANCE l
BARRIER CAPACITANCE Test Test Test Test Passed Run MC openckt both iso barrier Freqncy Voltage Voltage open ckt DUT conn.
iso barrier No. Lvl Gohms Gohms Gohms Appt'd open ckt actss DUT ma ma pfarads P/F P/F P/F P/F microjoules (1) 0.1 34.1 30.7 302.841 50000 3.00 2.83 0.56 0.84 346.9 P
P P
P 1.7E-06 (2) 0.2 26.9 25.1 368.311 50000 3.00 3.00 0.56 0.57 12.8 F
P P
P 1.7E-05 (3) 0.3 29.5 27.0 322.874 50000 3.00 3.00 0.56 0.57 13.6 F
P P
P 2.0E-07 (4) 0.4 27.6 -
26.2 488.628 50000 3.00 3.00 0.56 0.57 17.0 F
P P
P 4.0E-07 (5) 0.5 27.8 25.1 262.204 50000 3.00 3.00 0.56 0.59 30.5 F
P P
P 2.0E-07 (6) 0.6 26.5 19.4 72.893 50000 3.00 3.00-0.56 0.57 12.1 F
P P
P 1.7E-07 (7) 0.7 26.2 23.8 251.233 50000 3.00 3.00 0.56 0.57 11.5 F
P P
P 1.8E4 (8) 0.8 29.7 27.3 349.749 50000 2.%
2.%
0.55 0.57 15.5 F
P P
P 3.6E-06 (9) 0.9 31.1 0.0 0.003 50000 2.96 2.%
0.56 0.57 15.6 F
P P
P 2.1E-04 (10) 1.0 32.8 0.1 0.077 50000 2.96 2.96 0.55 0.56 14.7 F
P P
P 4.3E W (11) 1.1 31.7 19.0 47.573 50000 2.96 2.%
0.55 0.56 12.9 F
P P
P 5.6E-06 (12) 29.3 0.0 0.002 50000 2.%
2.%
0.55 0.56 14.5 F
P P
P 1
.. NOTE: Barrier R readings behaved crratically after DUT was exposed to.7xMCF energy damage =
100 level
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49 ISOLATION DEVICE TEST PROGRAM FIN L2158 TEST RESULTS
SUMMARY
DEVICE:
Technology for Energy Corp.
TYPE:
Transformer Modulation with Voltage Input TEST RUN:
TD-4-1 (1)
DATE COMPLETED: 07/18/93 DEVICE CHAR ACTERISTICS Barrier Resistance - > 1.05 Gohm Barrier Capacitance - Range 9-14 pfarads Functional Test - Device failed at 0.1 MCF (10 volts)
Energy Passed - s 2x104 p Joules (Damage Threshold = 100 Joules)
Summary Device tested functionally. Device was tested at maximum credible fault levels from 0-110 volts at 10% steps. Device failed functionally (would not transmit signal) at 10 volts.
The device maintained its isolation characteristics throughout testing. Greatest energy passed was 2x104microjoules, well below the threshold value of 100 microjoules. Barrier resistance was checked as greater than 1.05 Gohms.
e ISOLATION DEVICE TEST PROGRAM FIN-L2158 MAKE: Technology for Energy Corp.
MODEL: 159-2-F S/N: 02088 TEST RUN: TD-4-1(1) DATE: 2/18/93 1/2 Cycle BARRIER Funct Energy TEST l RESISTANCE l BARRIER CAPACITANCE Test Passed Run MCF R > 1.05 Freqncy Voltage Voltage open ekt DUT con iso barrier No. Lvl Gohm Appt'd open ckt acts DUT ma ma pfarads P/F microjoules (1) 0.1
> 1.05 50000 3.03 3.03 0.57 0.58 0.0 P
2.1E-04 (2) 0.2
> 1.05 50000 3.03 3.02 0.57 0.58 13 3 F
2.4E-05 F
2.0E-05 50000 (3) 0.3 (4) 0.4
> 1.05 50000 3.02 3.02 0.57 0.58 14.1 F
5.0E-05 50000 F
3.0E-05 (5) 0.5 (6) ' O.6
> 1.05 50000 2.99 2.99 0.56 0.57 14.1 F
5.4E-05 F
2.5E-05 (7) 0.7 50000 F
5.0E-05 (8) 0.8 50000 F
4.6E-05 (9) 0.9 50000 F
7.5E-05 50000 (10) 1.0 (l1) 1.1
> 1.05 50000 F
8.4E-04 (12)
> 1.05
- 500fJO 2.99 2.99 0.57 0.58 9.6 F
Notes:
Gross barrier resistance measured at select MCF levels.
energy All barrier resistance measurements exceeded 1.05 Oohms.
damage = 100 level Device fai!cd functional test after being exposed to 0.1xMCF.
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