11
VFD
The 19MV unit mounted starters are Danfoss FC102 VFDs fam-
ily for standard tier and Rockwell PF755TL for high tier. The
VFDs are used to run Carrier’s Interior Permanent Magnet
(IPM), gear-less compressors family. The VFD, power panel,
and control panel are mounted on the chiller. See manufacturer
VFD specific information and VFD schematics. The drives are
designed to operate in an ambient range of up to 104°F (40°C)
without de-rating the VFD. Consult Engineering for ambient
temperatures greater than this value. Both manufacturer's drives
are designed to allow service to repair the units without remov-
ing them from the chiller. For standard tier drives, line reactors
are offered as an option to improve the units' reliability and har-
monics. The optional high tier drives have an active front end.
The high tier VFDs meet IEEE-519 < = 5% iTHD at the com-
mon point of coupling. Volt and amp meters are offered on both
standard and high tier VFDs. See Fig. 8.
The following drives are used with 19MV units:
Fig. 8 — VFD Lifting Brackets
Drive
Approximate Weight
lb
kg
DD395 (N200)
325
148
DD480 (N250)
325
148
DD588 (N315)
325
148
DE658 (N355)
700
318
DE745 (N400)
700
318
DE800 (N450)
700
318
DE990 (N560)
750
341
LIFTING BRACKETS
NOTE: Hole size is 0.76 in. (20 mm). Rig in all four
holes simultaneously.
Содержание AquaEdge 19MV
Страница 49: ...49 Fig 46 SIOB...
Страница 50: ...50 Fig 47 IOB2...
Страница 51: ...51 Fig 48 19MV Auxiliary Controls Wiring...
Страница 52: ...52 Fig 49 Motor Bearing Control Board Wiring...