Faulted Circuit Interrupting Tests on Type CMU Power Fuses
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1 CP No.: CP0508 Rev. 01 Page: 1 of 9 CERTIFIED TEST REPORT Faulted Circuit Interrupting Tests on Type CMU Power Fuses REV. 01 DATE: August 10, 2005 ORIGINAL REPORT DATE: May 25, 2005 Cooper Power Systems, Inc.
2 CP No.: CP0508 Rev. 01 Page: 2 of 9 Faulted Circuit Interrupting Tests on Type CMU Power Fuses CERTIFICATION Statements made and data shown are, to the best of our knowledge and belief, correct and within the usual limits of commercial testing practice. The following report is a true and correct summary of data from tests performed by Powertech High Power Laboratory in Surrey, British Columbia Canada from November 29 to December 2, 1999 and April 2, The tests demonstrate the capability of the Cooper Power Systems type CMU Power Fuses to safely interrupt circuits when applied within their assigned ratings. Frank J. Muench Manager, Line Protection Devices Engineering
3 CP No.: CP0508 Rev. 01 Page: 3 of 9 INTRODUCTION The tests detailed in the following report were performed to present the TESTS TO PROVE 12.8 ka (symmetrical), 20.5 ka (asymmetrical) INTERRUPTING CAPABILITY AT 27.1 kv TO IEEE C , C , C & C for TYPE CMU to , CMU to , CMU to POWER FUSES
4 CP No.: CP0508 Rev. 01 Page: 4 of 9 Object To prove the interrupting ability of Cooper Power Systems CMU , CMU , & CMU Power Fuses. Power Fuses Maximum Interrupting Current Power Frequency Recovery Voltage Frequency 12.5 ka (sym), 20 ka (asym) 27.1 kv 60 Hz Equipment Tested CMU Fuses CMU Fuses These fuses are the minimum and maximum ratings of a design family that covers the 3K to 80K, 5E to 80E, and 15SE to 65SE ratings. CMU Fuses CMU Fuses These fuses are the minimum and maximum ratings of a design family that covers the 100K & 140K, 100E & 125E, and 80SE to 125SE. CMU Fuses This Fuse does not fit into any of the design families. CMU Fuses CMU Fuses These fuses are the minimum and maximum ratings of a design family that covers the 200K,175E & 200E, and 150SE to 200SE ratings. Test Arrangement For 'dropout' tests, each fuse was equipped with a set of S&C end fittings, Cat. # 3095 (comprising one top end fitting and one bottom end fitting). The fuse was tested in a S&C drop-out mounting Cat. # 92123R3. For 'non-dropout' tests, each fuse was equipped with a set of S&C end fittings, Cat # 3097 (comprising one top fitting and one bottom end fitting and an S&C Silencer Cat # G-4780R4). The fuse was tested in a S&C pad mount mounting, Cat #
5 CP No.: CP0508 Rev. 01 Page: 5 of 9 Test Conditions Tests were carried out to the requirements of ANSI-IEEE Std C , and IEEE Std C , Tables 2, 3, and 4. Series 1 tests were carried out 100% of rated maximum voltage, thus eliminating the need to carry out Series 2 tests. The test circuit was arranged to monitor leakage current on tests on 'non-dropout' tests, and the circuit was opened after the leakage current had been less than 1 ma for 2 min. The test circuits are listed in Table 1. The test results are listed in Tables 2.i through 2.iii. Detailed results and oscillograms are in Powertech Labs Inc. Test Report No: B-26.
6 CP No.: CP0508 Rev. 01 Page: 6 of 9 Test Fuse Test Sample Muffler Vapp Ipros Vrec Ipk Varc Closing Melt Clear MW Kj Vrec Result # Cat. # Series # kv ka kv ka kv Angle Time Time Held msec. msec sec CMU N Cleared 1-35 CMU N Cleared 1-36 CMU N Cleared 1-41 CMU Y Cleared 1-42 CMU Y Cleared 1-43 CMU Y Cleared 1-37 CMU N Cleared 1-39 CMU N Cleared 1-39 CMU N Cleared 1-44 CMU Y Cleared 1-45 CMU Y Cleared 1-46 CMU Y Cleared 1-6 CMU N Cleared 1-7 CMU N Cleared 1-8 CMU N Cleared 1-19 CMU Y Cleared 1-20 CMU Y Cleared 1-21 CMU Y Cleared 1-14 CMU N Cleared 1-15 CMU N Cleared 1-16 CMU N Cleared 1-22 CMU Y Cleared 1-23 CMU Y Cleared 1-24 CMU Y Cleared 1-10 CMU N Cleared 1-11 CMU N Cleared 1-12 CMU N Cleared 1-25 CMU Y Cleared 1-26 CMU Y Cleared 1-27 CMU Y Cleared 1-3 CMU N Cleared 1-9 CMU N Cleared 1-5 CMU N Cleared 1-28 CMU Y Cleared 1-29 CMU Y Cleared 1-30 CMU Y Cleared 1-17 CMU N Cleared 1-18 CMU N Cleared 1-1 CMU N Cleared 1-31 CMU Y Cleared 1-32 CMU Y Cleared 1-13 CMU Y Cleared
7 CP No.: CP0508 Rev. 01 Page: 7 of 9 Test Fuse Test Sample Muffler Vapp Ipros Vrec Ipk Varc Closing Melt Clear MW Kj Vrec Result # Cat. # Series # kv ka kv ka kv Angle Time Time Held msec. msec sec CMU N Cleared 2-38 CMU N Cleared 2-39 CMU N Cleared 2-40 CMU Y Cleared 2-41 CMU Y Cleared 2-42 CMU Y Cleared 2-43 CMU N Cleared 2-44 CMU N Cleared 2-45 CMU N Cleared 2-46 CMU Y Cleared 2-47 CMU Y Cleared 2-48 CMU Y Cleared 2-8 CMU N Cleared 2-9 CMU N Cleared 2-10 CMU N Cleared 2-21 CMU Y Cleared 2-22 CMU Y Cleared 2-23 CMU Y Cleared 2-13 CMU N Cleared 2-15 CMU N Cleared 2-18 CMU N Cleared 2-34 CMU Y Cleared 2-35 CMU Y Cleared 2-36 CMU Y Cleared 2-1 CMU N Cleared 2-3 CMU N Cleared 2-7 CMU N Cleared 2-24 CMU Y Cleared 2-25 CMU Y Cleared 2-26 CMU Y Cleared 2-5 CMU N Cleared 2-6 CMU N Cleared 2-12 CMU N Cleared 2-31 CMU Y Cleared 2-32 CMU Y Cleared 2-33 CMU Y Cleared 12-1 CMU N Cleared 12-2 CMU N Cleared 12-3 CMU N Cleared 12-4 CMU Y Cleared 2-29 CMU Y Cleared 2-30 CMU Y Cleared
8 CP No.: CP0508 Rev. 01 Page: 8 of 9 Test Fuse Test Sample Muffler Vapp Ipros Vrec Ipk Varc Closing Melt Clear MW Kj Vrec Result # Cat. # Series # kv ka kv ka kv Angle Time Time Held msec. msec. sec CMU N Cleared 13-6 CMU N Cleared 13-7 CMU Y Cleared 13-8 CMU Y Cleared 4-1 CMU N Cleared 4-2 CMU N Cleared 13-9 CMU Y Cleared CMU Y Cleared 4-7 CMU N Cleared CMU N Cleared 4-16 CMU Y Cleared CMU Y Cleared 4-5 CMU N Cleared 4-6 CMU N Cleared CMU Y Cleared CMU Y Cleared 4-9 CMU N Cleared 4-10 CMU N Cleared 4-17 CMU Y Cleared 4-18 CMU Y Cleared 4-11 CMU N Cleared 4-12 CMU N Cleared 4-19 CMU Y Cleared CMU Y Cleared 4-13 CMU N Cleared 13-1 CMU N Cleared 13-3 CMU Y Cleared 13-4 CMU Y Cleared 3-4 CMU N Cleared 3-5 CMU N Cleared 3-6 CMU Y Cleared 3-7 CMU Y Cleared 5-1 CMU N Cleared 5-2 CMU N Cleared 5-3 CMU Y Cleared 5-4 CMU Y Cleared
9 CP No.: CP0508 Rev. 01 Page: 9 of 9 Conclusions The above is a true and correct summary of data obtained from tests performed by: Powertech High Power Laboratory in Surrey, British Columbia, Canada from November 29 to December 2, 1999, and April 3, The tests demonstrate the capability of Cooper Power Systems type CMU Power Fuses to safely interrupt circuits when applied within their assigned ratings. The fuses tested during this test sequence met the requirements of the referenced standards. Quality from Cooper Industries P.O. Box 1640, Waukesha, WI 53187
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