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2 - Fagor Automation

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Installation<br />

8.<br />

INSTALLATION<br />

Connection between modules<br />

312<br />

DDS<br />

HARDWARE<br />

Ref.1307<br />

290<br />

i<br />

Heat dissipation<br />

The external Ballast resistors can generate a great deal of heat. That's why,<br />

sometimes, depending on the temperature of the installation area, it may<br />

be necessary to evacuate the heat by means of fans.<br />

INFORMATION. If a fan is required due the conditions of the location<br />

where the resistor will be installed, remember that <strong>Fagor</strong> <strong>Automation</strong> offers<br />

external ballast resistors with fan.<br />

See an example with data on the temperatures reached in points of the top<br />

of the module and the effect of the fan:<br />

T. H8/3 Temperatures reached in the points defined earlier in the figure F.<br />

H8/18. *Temperature variation due to the effect of the fan (PAPST<br />

614). Temperature in °C (conversion: °F = 32 + 1.8 °C).<br />

Dissipated power (W) 734 896 1042 1400 1400 *<br />

Ambient temperature (°C) 25 22 24 24 24<br />

T1 (°C) 90 89 115 138 74<br />

T2 (°C) 157 170 185 217 113<br />

T3 (°C) 80 79 88 104 64<br />

T4 (°C) 60 68 72 82 46<br />

T5 (°C) 50 54 57 65 47<br />

T6 (°C) 40 40 44 45 44<br />

10 cm<br />

3.93"<br />

5 6<br />

3 4<br />

2<br />

1<br />

30 cm<br />

11.8"<br />

65 cm<br />

25.6"<br />

F. H8/18<br />

Location of the temperature measuring points.

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