4
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
Read and understand these instructions before attempting
installation, operation, or maintenance of this equipment . This
equipment must be installed and serviced only by qualified electrical
personnel . Retain this document for future use .
WARNING
HAZARD OF ELECTRICAL SHOCK OR BURN. OPERATING THE SWITCHGEAR
ASSEMBLY OUTSIDE OF ITS RATINGS MAY CAUSE FAILURE RESULTING
IN PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH. THE
SWITCHGEAR ASSEMBLY MUST BE OPERATED WITHIN ITS NAMEPLATE
RATINGS.
WARNING
HAZARDS OF ARC FLASH, ARC BLAST, AND ELECTRIC SHOCK EXIST
WHEN THIS EQUIPMENT IS ENERGIZED, WHICH MAY LEAD TO DEATH
OR SEVERE INJURY.
ALL WORK ASSOCIATED WITH THIS ELECTRICAL EQUIPMENT MUST BE
PERFORMED ONLY BY QUALIFIED PERSONNEL AS DEFINED IN NFPA-70.
CONSULT NFPA-70E, OSHA, AND ANY OTHER APPLICABLE REGULATION
PERTAINING TO OPERATOR SAFETY PRIOR TO SERVICING EQUIPMENT.
THE QUALIFIED PERSONNEL MUST FOLLOW ALL APPLICABLE PERSONAL
PROTECTIVE EQUIPMENT REQUIREMENTS.
DO NOT ATTEMPT ANY WORK ON THIS EQUIPMENT SUCH AS INSTALLING
COMPONENTS, PERFORMING ANY EXAMINATIONS, PERFORMING
ANY ADJUSTMENTS, PERFORMING ANY SERVICING, OR PERFORMING
ANY MAINTENANCE WHILE IT IS ENERGIZED. BEFORE PERFORMING ANY
WORK, FOLLOW ALL APPROPRIATE HAZARD ASSESSMENT AND ENERGY
CONTROL PRECAUTIONS AND PROCEDURES.
VERIFY NO VOLTAGES ARE PRESENT ON ALL INCOMING AND OUTGOING
CONDUCTORS, AND ANY ENERGY SOURCES CONTAINED WITHIN THE
EQUIPMENT PRIOR TO SERVICING, THEN GROUND (CONNECT TO EARTH)
ALL INCOMING AND OUTGOING CONDUCTORS ATTACHED TO THIS
EQUIPMENT AND TO ANY INTERNAL ENERGY SOURCES.
DANGER
ALL APPLICABLE SAFETY CODES, SAFETY STANDARDS, AND SAFETY
REGULATIONS MUST BE ADHERED TO WHEN INSTALLING, OPERATING, OR
MAINTAINING THIS EQUIPMENT.
Introduction
Purpose
This instruction book is expressly intended to cover the installation,
operation, and maintenance of medium voltage switch (type MVS-
ND) metal-enclosed switchgear . It is not encompassing of all possible
contingencies, variations, and details that may arise during installation,
operation, or maintenance of this equipment .
If further information is desired by the purchaser regarding this
particular installation or application information, contact the local
Eaton sales office, see the appropriate section of Eaton’s Consulting
Application Guide, and review the appropriate industry standards .
Description and application
The type MVS-ND metal-enclosed switchgear assemblies consists
of one or more vertical sections of metal-enclosed switchgear as
defined in industry standard American National Standards Institute/
Institute of Electrical and Electronic Engineers (ANSI/IEEE
T
)
C37 .20 .3 . Typically, each vertical section contains an air insulated,
three-pole, gang-operated, quick-make, quick-break, load interrupter
switch . It can be applied in combination with power fuses and many
other protective devices to provide safe, economical switching and
overcurrent protection where infrequent disconnecting means
is required .
Documentation references
For receiving, handling, storing and installation instructions:
IB022014EN .
For MVS-ND mounting to a foundation: Job Floor plan Document .
Refer to the customer drawing package documentation for order
specific information . For further information on installation and
application, refer to the applicable descriptive bulletins, publications,
and/or industry standards . Download Eaton information from
www .eaton .com .
Eaton contact information
For additional information about Eaton products please call
1-800-525-2000 or log onto www .eaton .com . Additional medium
voltage switchgear information regarding Pricing/Aftermarket,
Customer Service, Engineering/Technical Information, or Warranty,
can be found by calling 1-800-345-4072 .
Eaton Electrical Services and Systems (EESS) can be reached at
1-800-498-2678 .
If further information is desired regarding this particular installation
or application information, contact the local Eaton sales office,
reference Eaton’s Consulting Application Guide, or the appropriate
industry standards .
Terminology
Metal-enclosed load interrupter switchgear
This is an assembly of metal vertical sections as defined in
ANSI/IEEE C37 .20 .3 .
Load interrupter switch
The basic switching and fault-closing device used in metal-enclosed,
load interrupter switchgear .
Fuse
A device used in conjunction with a load interrupter switch to
provide overcurrent and short-circuit protection .
