CD Automation REVO C 2PH 690V, User Manual

Page: 19 / 81

REVO C
2PH from 60A to 800A - 690V
User’s manual
19
6.4 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 Fan - (16W x 4) 64W Four Fan - (14W x 4) 56W Four Fan - (7W x 4) 28W
S16
800A Four Fan - (16W x 4) 64W Four Fan - (14W x 4) 56W Four Fan - (7W x 4) 28W
6.5 Environmental installation conditions
Ambient temperature 0-40°C (32-104°F) at nominal current. Over 40°C (104°F) use the derating curve (max
50°C).
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
6.6 Derating Curve and Thermal conditions
The nominal current of the units in specification
are referred to continuous service at 40°C ambient
temperature. For higher temperature multiply the
nominal current times derating coefficient K here
represented:
6.7 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
Operation at ambient operating temperature above 40°C
not covered by UL
®
For higher cabinet temperature (more than 50°C)
contact the producer of the unit
CABINET TEMPERATURE °C
Derating