Product Description
5.3 Cabinet Details
Product User Manual
72 Operating Instructions, Version AE 12/2009, A5E01454341C
Figure 5-10 GenIV 40-140 A Power Cell Frame
The Cell Section portion of the enclosure includes two hinged doors. The left door (on 4kV
systems only) is master door of the GenIV system and has provisions for a K2 mechanical
key interlock. A system requiring agency approval will require mechanical (or electrical) key
interlocks. This K2 key should be interlocked with a keyed lock located in the incoming
switchgear (coordinated with the Siemens project engineer). Only when the incoming
switchgear is mechanically and electrically opened should the K2 key be released for use at
the GenIV drive. The GenIV doors are coordinated mechanically to minimize the amount of
keyed locks.
Note
The Control Door, Control Section, and I/O Section are accessible without a K2 key.
However, the medium voltage components located in the I/O section are separated by fixed
polyglass barriers.
The cells are installed in the enclosure by sliding them on the polyethylene coated mounting
rails. The cell’s locking latches are then rotated into the mounting rail slots, aligning and
locking the cell into place. High-temperature foam provides for an air-tight seal between the
cell chassis and the backplane. Power Cell line and load connections are made via blind
mate power plugs located at the rear of the cell. The plugs accept a special sized nickel
plated copper chamfered power bus. No hardware is required to make the power
connections or to physically mount the cell, making installation, replacement, and
maintenance simple. See Figure "Cell Installation and Latching System" for a depiction of the
cell racking system.
Note
The blind mate power plugs have been factory tested at 250 insertions/extractions with no
significant change in contact resistance.
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