Page 64 - impiantistica_3_2015
P. 64
Table 1 – Main characteristics and special accessories
Main characteristics pc 12 12
Units − induction CT 400 Y4
Type − CT 900 Y4 500
Model kW 8700 1483
Power rpm 1493 n/a (fixed speed)
Rated speed rpm 1045÷1493 (adjustable) 6000
Speed range − 4 56
Poles V 3300
Voltage A 1745 3250
Current − Air-to-air IC 611
Cooling method − Horizontal IM 1001 79
Mounting arrangement − IP 55 95.5
Protection degree − Outdoor, safe area 5.0 (zero tolerance)
Installation, area kg 36000
Mass °C -5 ÷ +55 Rolling / Grease
Ambient temperature − F / B (≤ 65 K)
Temperature class / rise dB(A) 85
Noise level pressure % 96,9
Efficiency p.u. n/a (soft start)
Starting current − Aluminum fabricated
Rotor cage type − Sleeve / Oil forced
Bearings / lubrication
Special accessories − Ex-i / Ex-d Yes
Stator winding / Bearing RTDs − Ex-i, 2 each bearing
BN Accelerometer − Ex-d
Heaters − 4
Aux terminal boxes − Yes
Soundproofing − Yes
Stainless steel sunshade (instr. only) − Yes (Line insulated)
Line and star point terminal box − Special
Painting cycle − Tropicalized VPI Micasystem ®
Stator winding insulation
62 Impiantistica Italiana - Maggio-Giugno 2015
