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TD231 Scheda tecnica(PDF) 2 Page - List of Unclassifed Manufacturers |
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TD231 Scheda tecnica(HTML) 2 Page - List of Unclassifed Manufacturers |
2 / 6 page Page 2 of 6 NOTE: Values other than V5 kA are typical values. 0.5 µsec 1.0 µsec 8/20 µs Wave Forms MCOV (ANSI) (IEC) Catalog Rating (kV kV @ kV @ kV pk @ kV pk @ kV pk @ kV pk @ kV pk @ kV pk @ Number (kV) rms) 5 kA 5 kA 1.5 kA 3 kA 5 kA 10 kA 20 kA 40 kA AV5NEPA 4.50 3.94 16.0 15.9 13.1 14.1 15.1 16.5 18.9 21.9 AV5NGPA AV5NEPB 5.00 4.26 17.3 17.1 14.1 15.2 16.3 17.8 20.4 23.6 AV5NGPB Discharge Voltage vs. Impulse Current for 5kA Disks 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 1000 10000 100000 AV5NGP02C AV5NGP04C Figure 2 Maximum Residual Voltage vs. Impulse Current 1.6 1.5 1.4 1.3 1.2 1.1 1 0.1 0.01 1 10 100 1000 10000 1.7 1.8 TIME DURATION IN SECONDS AFTER IEC HIGH CURRENT DUTY NO PRIOR DUTY Figure 3 Temporary Overvoltage Capability, 60°C NOTE: The TOV capability will depend on the design and thermal capability of the arrester. The above TOV curve represents a typical Cooper Power Systems design. Table 2 Maximum Residual Voltages IMPULSE CURRENT (A) Residual Voltage vs. Impulse Current AV5NGPA AV5NGPB Catalog Suggested Suggested IEC LD ANSI LCLD IEC High Current Number Ur (Rating) Uc (MCOV) Current Withstand Class ANSI HCSD Iref AV5NEPA 4.5 kV 3.94 kV 150 A 2000 µs 75 A 2000 µs 65 kA 3 mA AV5NGPA AV5NEPB 5.0 kV 4.26 kV 150 A 2000 µs 75 A 2000 µs 65 kA 3 mA AV5NGPB Table 1 Suggested Usage & Class Ratings 26.0 24.0 22.0 20.0 18.0 16.0 14.0 12.0 1000 10,000 100,000 |
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