Conformity Magazine - March 2009 - (Page 25) • Component voltage and current recorder: A current sensor and digital oscilloscope capture the component current with time for comparison with the specified current-time template. The recorded component current values need to be multiplied by 0.707 for comparison with the Template rms values. For ECLs, which operate on peak current value and every half-cycle, the rms current must be calculated from the recorded current waveform. Recording the component voltage can be useful for analyzing component malfunctions. AC Generator open-circuit voltage (rms) 600 V Note 2 600 V AC Generator short-circuit current (rms), test duration 7 A, 60 A, 5 s Note 3 2.2, 2.6, 3 A, 3.75 A, 5 A, 7 A, 10 A, 12.5 A, 20 A, 25 A and 30 A, 900 s 7 A, 60 A, 5 s when set to 600 V 2.2, 2.6, 3 A, 3.75 A, 5 A, 7 A, 10 A, 12.5 A, 20 A, 25 A and 30 A, 900 s 40 A, 1.5 s Note 3 7 A, 5 s Equipment Standard Reference GR-1089-CORE, Issue 4, Table 4-8 tests 2 & 3, Table 4-10 tests 2 & 3 GR-1089-CORE, Issue 4, Table 4-8 tests 3 & 4, clause 4.6.11.1 Table 4-10 tests 3 & 4, clause 4.6.14.1 GR-1089-CORE, Issue 4, Table 4-13, tests 11 & 13 Table 4-15, tests 10 & 12 GR-1089-CORE, Issue 4, Section 4.6.14.1 test points Table 4-13, test 9, test 14 Table 4-15, test 13 UL 60950-1, clause 6.4, clause NAC.3.3 test L-1 UL 1459, Issue 3, clause 59.18 test L1 UL 60950-1, clause 6.4, clause NAC.3.3 test L-2 UL 1459, Issue 3, clause 59.18 test L2 UL 60950-1, clause 6.4, clause NAC.3.3 test L-3 UL 1459, Issue 3, clause 59.18 test L3 UL 60950-1, clause 6.4, clause NAC.3.3 test L-1 clause NAC.3.2.1 UL 60950-1, clause 6.4, clause NAC.3.3 test L-2 clause NAC.3.2.1 UL 60950-1, clause 6.4, clause NAC.3.3 test L-3 clause NAC.3.2.1 GR-1089-CORE, Issue 4, clause 4.6.17, Table 4-8, test 1a UL 60950-1, clause 6.4, clause NAC.3.3 test L-5 UL 1459, Issue 3, clause 59.18 test L5 Maximum AC let-through voltage of agreed or integrated primary protector that the equipment must be used with Note 1 Maximum AC let-through voltage of agreed or integrated primary protector that the equipment must be used with Note 1 600 V AC Note 2 2.2 A, 1800 s Maximum AC let-through voltage of specified UL 497 primary protector that the equipment must be used with 40 A, 1.5 s Note 3 7 A, 5 s 2.2 A, 1800 s 120 V AC 25 A, 900 s Note 3 25 A, 1800 s Note 3 Note 1: GR-1089-CORE, Issue 4 uses the GR-974-CORE values of primary protector maximum AC let-through voltage; 600 V (High voltage limiting), 425 V (Medium-voltage limiting), 283 V (Low-voltage limiting) or an agreed voltage value between the manufacturer and LEC (Specific-voltage limiting). Note 2: For equipment only used with a specific protector, test with the specified protector connected: For GR-1089-CORE: Agreed or integrated protector type, Table 4-13 tests 10 & 12 or Table 4-15, tests 9 & 11 For UL 60950-1: UL 497A secondary protector, clause NAC.3.2.2 For UL 1459, Issue 3: UL 497 or UL 497A protector, clause 59.15 Note 3: Applied voltage starting phase angle controlled to 5°, 45°, 90°and 135° with a tolerance of ±1° for 25 A (120 V), 40 A and 60 A tests Table 5: AC power fault tests and their related equipment standards marCh 2009 Conformity 25
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