Specifications

D1
GE Limitamp
®
Medium Voltage Motor Control
Incoming Line
D
Cable-entrance Compartment
When incoming cable exceeds limits shown in the cable size
limits tables, an optional cable-entrance compartment is
required.
Transition Compartment
Limitamp control can be close-coupled to transformers and
switchgear by a transition compartment to make a continuous
lineup. The transition compartment is normally 22 inches
wide; however, this can vary. See Table D.1.
Bus Entrance Compartment
Bus entrance compartments are required in all cases where
power is fed to the controller lineup by means of bus. See
Table D.1.
Cable Terminals
Terminal lugs for both line and load cables are not
supplied unless specified.
Mechanical compression lugs or NEMA 2-hole compression-
type lugs can be supplied as options.
The customer must specify the number and size cable when
lugs are to be supplied by GE.
Where aluminum cable is to be used, special attention must
be given to terminal selection.
High-Resistance Grounding Equipment
High-resistance grounding equipment can be mounted in an
enclosure which will match and line up with Limitamp
dimensions and bus location.
Table D.1 General Guidelines for Incoming Lines
Incoming Line Maximum Cable Size per Phase Enclosure Width Typical Device Devices That Can Be Included
Cable Compartment Top Entry
4-500 kcmil 22”
VM, VMS, 2 stationary PTs, lightning arresters and
surge capacitors
4-750 kcmil 32” All of the above plus 3 CTs, AM and AMS
4-750 kcmil 38”
All of the above plus D/O PTs can replace the
stationary PTs. 1 D/O CPT can be mounted.
Cable Compartment Bottom Entry
Same as top entry except a D/O CPT
cannot be mounted in the enclosure
Bus Entrance Compartment N/A 32” Same as 32”-wide cable compartment
Transition to GE Switchgear N/A 22”
VM, VMS, 2 stationary PTs, lightning arresters and
surge capacitors
Transition to GE Transformer N/A 22”
Accessories cannot be mounted in transformer
transition. Additional auziliary enclosure is required.
Load-break Switch
Fused or Unfused
2-500 kcmil top or bottom
38” AM, AMS, 3 CTs, 2 stationary PTs, VM and VMS
38” and 22”
auxiliary enclosure
Same as 38” switch plus lightning arresters, surge
capacitors and switchgear relay can be mounted in
the 22” wide enclosure
38” and 38”
auxiliary enclosure
Same as 38” switch except D/O PTs can be mounted
in the auxiliary enclosure plus switchgear relays