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6 Specifications
3.0 S
PECIFICATIONS
3.1 Framework
The Helios DC System 4000/48 uses cabinet type frameworks. The same cabinet design is used for
the main control and distribution cabinet, the auxiliary distribution cabinets and the rectifier cab-
inets. The cabinet is always equipped with a front door and door frame (lockable, equipped with
ground straps, and easily removable for installation or maintenance access), a ventilated top
cover made of non-flammable plastic, and two ventilated rear cover panels (equipped with ground
strap and easily removable for installation and maintenance access). Bussing and equipment
(controller, rectifiers, distribution panels, etc.) are added as required, depending on the use of the
cabinet. Seismic bracing is also available as options.
When using the Cable Trough, overhead cabling cannot enter from the front or rear of the system.
It must be confined to the system foot print and enter at the ends of the lineup.
The cabinets may be either top or bottom cabled as determined by the location of the bussing.
3.1.1 Mechanical Specifications of a Cabinet
The mechanical specifications of an empty cabinet are listed in
Table 4.
Refer to
Figure 3
for typical views of cabinets.
3.1.2 Electrical Specifications of the Cabinets
The electrical specifications of equipped cabinets are as follows:
• The main control and distribution cabinet for a 1500 A system has a 2000 A busbar riser and
a common equipment panel e/w one 1500 A CHG and DISCH busbar and a 2500 A system
shunt.
• The main control and distribution cabinet for a 3000A system has a 3000 A busbar riser and a
common equipment panel e/w two 1500 A CHG and DISCH busbars and a 4000 A system
shunt.
• The main control and distribution cabinet for a 4000A system has a 3000 A busbar riser and a
common equipment panel e/w three 1500 A CHG and DISCH busbars and a 5000 A system
shunt.
• A 6000 A system has a 3000 A busbar riser in the main control and distribution cabinet (the
CHG and DISCH busbar and the shunt are external).
• The auxiliary distribution cabinet is available with a 2000 or 3000 A busbar riser.
• A 1200 A rectifier cabinet has 1500 A busbar risers for the DC output of the rectifiers.
Table 4 Mechanical specifications of the cabinet (empty)
Framework type Height Depth Width Weight
Cabinet 2134 mm
(84.0 in.)
600 mm
(23.6 in.)
600 mm
(23.6 in.)
114 kg
(251 lb)