Product Description
5.3 Cabinet Details
Product User Manual
64 Operating Instructions, Version AE 12/2009, A5E01454341C
The input and output medium voltage terminals (L1, L2, L3 and T1, T2, T3) are offset from
one another and have two NEMA one-hole pattern configurations (vertical and horizontal) to
facilitate top or bottom cable termination (see Figure " Medium Voltage Terminations (L1, L2,
L33, or T1, T2, T3").
Note
The GenIV design is best accommodated for single conductor single core medium voltage
cables. Three conductor single core cables must be broken into their individual conductors
prior to entering the gland plate of the VFD unit.
Figure 5-5 Medium Voltage Terminations (L1, L2, L3, or T1, T2, T3)
The input current transformers, output Hall Effect current transducers, and input/output
voltage attenuators are pre-engineered according to each project's requirements. The
metallic chassis, housing the hall effect current transducers and low voltage portion of the
medium voltage attenuating resistors, are grounded at point GND3. The secondary of CT1
and CT2 are also grounded to point GND3. The bypass power supply and bypass control
circuit are used when Mechanical Cell Bypass is selected as an option. The auxiliary voltage
transformer steps customer-supplied three phase low voltage down to single phase 120 V for
use with the NXG II controller. This 500 VA transformer is protected by three control fuses
(2 primary, 1 secondary) that are located in the Control Wire Way section.
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