14
REVO S
2PH from 60A to 800A - 690V
User’s manual
3.4 Fan Specification
Size
Number of fans
230Vac Standard
Number of fans
115Vac Option
Number of fans
24Vdc Option
S11
60A, 90A
One Fan - 16W
One Fan - 14W
One Fan - 7W
S13
120A, 150A, 180A,
210A
Two Fans - (16W x 2) 32W
Two Fans - (14W x 2) 28W
Two Fans - (7W x 2) 14W
S14
300A, 400A, 500A,
600A
Two Fans - (16W x 2) 32W
Two Fans - (14W x 2) 28W
Two Fans - (7W x 2) 14W
S14
450A, 700A
Four Fans - (16W x 4) 64W
Four Fans - (14W x 4) 56W
Four Fans - (7W x 4) 28W
S16
800A
Four Fans - (16W x 4) 64W
Four Fans - (14W x 4) 56W
Four Fans - (7W x 4) 28W
3.5 Environmental installation conditions
Ambient temperature
0-40°C (32-104°F) at nominal current. Over 40°C (104°F) use the derating curve.
Storage temperature
-25°C to 70°C -13°F to 158°F
Installation place
Don’t install at direct sun light, where there are conductive dust, corrosive gas,
vibration or water and also in salty environmental.
Altitude
Up to 1000 meter over sea level. For higher altitude reduce the nominal current of
2% for each 100m over 1000m
Humidity
From 5 to 95% without condense and ice
Pollution Level
Up to 2nd Level ref. IEC 60947-1 6.1.3.2
3.6 Derating Curve and Thermal conditions
The nominal current of the units in specification are referred
to continuos service at 40°C ambient temperature. For higher
temperature multiply the nominal current times derating
coefficient K here represented:
3.7 Calculating flow capacity of the fan
All the thyristor units when are in conduction produces power
loss that is dissipated inside cubicle in terms of heating. Due
to this fact the internal temperature of cubicle is higher than
ambient temperature. To be cooled the thyristor need of
fresh air cooling and to do it is normally used a fan mounted
on the front door or on the roof of the cabinet.
Procedure to size Fan air mass flow (V): see power loss for
each thyristor and fuse mounted indicated in the manual
related to the current (Output feature and Internal fuse
Chapter)
Qv
= total power losses (w) (thy fuse power loss)
ta
= ambient temperature (°C)
tc
= cabinet temperature (°C)
V
= fan air mass flow (m3/h)
f
= altitude coefficient (see table on right)
Altitude
0:100 meters f = 3.1 m3k/Wh
100:250 meters f = 3.2 m3k/Wh
250:500 meters f = 3.3 m3k/Wh
500:750 meters f = 3.4 m3k/Wh
The formulas used are for information only and is not a substitute for a proper thermal
rating done by a qualified person.
V=f * Qv
tc-ta
l max = l nominal x K
1
15 20 25 30 35 40 45 50 55
1,2
1
0,8
0,6
0,4
0,2
0
1
1
1
1
0,9
0,8
K
CABINET TEMPERATURE °C
Derating
For higher cabinet temperature
contact the producer of the unit
Summary of Contents for REVO S 2PH
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