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Standardized resistances (for the most common operating conditions)
Resistance calculation example

TM-5-3895-374-24-1 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
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TM 5-3895-374-24-1 Options Standard resistances VY1-ADR010W2000 Presentation: louvred enclosure, with cover (painted in grey RAL 7032), weight 26 kg. For dimensions in inches, multiply by 0,03937. Composition:  12 stainless steel elements 1,7 Q (cold state) and average power 250 to 300 W for a steady state temperature of the elements of about 300°C The elements are connected in series A parallel connecting strip enables the following characteristics to be obtained - ohmic value when cold 10 W, rated power 1800 W, - maximum power 40 kW, 1s For connecting, take off the louvred cover on the same side as the earth terminal, fixed with 4 M6 screws Wiring precautions - the resistance terminals' DC voltage can reach 1000 V, use conductors with < 1000 V insulation rating, - recommended section 25 mm2 (AWG 4), - connect the resistance to the PA-PB terminals, having removed the protection insulator Note For ATV-452D75(N) and D90(N) speed controllers, if the average braking power is < 3000 W during one cycle, a single standardized resistance may prove sufficient in that case, remove the connecting strip, and connect in parallel the 2 units of 6 elements to obtain 5 W - 3000 W (page 3-217)







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