16
Instruction Booklet
IB022003EN
Effective April 2018
Revision #3
Instructions for installation, operation, and
maintenance of Type MVS-ND, metal-enclosed
switchgear assemblies: 4.76 kV or 15.0 kV class
EATON
www.eaton.com
All connections to ground (Such as shielding)
must be carried through the current transformer
and solidly grounded on the load side of the CT
as shown. Use #6 wire with 600V insulation.
Lead, armor, conduit, and so on
To Load
Cable connections to switchgear terminals
when used with Zero Sequence Transformers
Insulated pothead bushing
Pothead ground lead must be carried
through the Zero Sequence current
transformer and solidly grounded on
the load side of the ct as shown. Use
#6 wire with 600V insulation.
Power Cables
Conduit, when used
Cable connections to switchgear terminals
when used with Insulated Pothead.
Conduit must be terminated and
solidly grounded on the load side
of the current transformer.
Zero Sequence transformer
Electrical joint required between
pothead and lead covered or armored
power cables.
Insulated pothead mounting
Lead, armor, conduit, Interstice ground conductors,
and so on. Must be terminated and solidly grounded
on the load side of the current transformer.
Zero Sequence Transformer
Power Cables
Switchgear Terminals
To Load
Figure 10. Zero Sequence Current Transformer Connections.
