Components From
Cooper Power Systems
Cooper Power Systems Components
and Protective Equipment is an
international leader in supplying
electrical components to transformer
and switchgear manufacturers. Our
customers have learned through
experience that Cooper can be trusted
to deliver components they can rely
on — every time. Reliability, performance, safety, ease of use — all in
components that are recognized as
the best in the industry.
Cooper Power Systems has over 25
years of experience in the research,
product development and quality manufacturing of transformer components.
We also have a long history of supplying
products to distribution equipment
manufacturers. Our components and
protective equipment have been developed in conjunction with both users
and equipment manufacturers, for the
best in performance and quality. Many
Cooper innovations have now become
industry standards. We’re continually
working on innovations for connectors,
components and protective systems,
to best fit the changing needs of
our customers.
The latest manufacturing equipment
and sophisticated process monitoring
and quality control techniques ensure
that every product that passes through
Cooper’s component manufacturing
facilities will be a product that you
can rely on for excellent performance.
We adhere to international standards
of quality control. Our Pewaukee
manufacturing plant is an ISO 9001
registered facility. Our goal is to consistently exceed industry quality standards.
Our Product Specialists, your link to
Cooper Power Systems, are committed
to providing you accurate and timely
technical assistance. Our Customer
Service Representatives use real
time information to communicate
availability and expedite orders for
quick turnaround. We stock a large
inventory of standard components
to provide consistently short lead
times and scheduling flexibility for
our customers.
For long term reliability and durability,
connect with bushings by Cooper Power
Systems. We manufacture an extensive
line of primary and secondary bushings
for liquid-filled distribution transformers
and switchgear.
A complete range of distribution primary
(high voltage) bushings is available in
200 A (loadbreak) and 600 A (deadbreak)
designs. High voltage loadbreak bushing
contacts have all copper current paths
for superior product life and more
reliable operation.
Secondary Bushings
Secondary (low voltage) bushings,
from 600 A to 4515 A, are available in
copper or aluminum. A wide variety of
internal/external connection options
is available.
(A)
(kV)
Secondary Bushings:
Tri-clamp
600-1400
1.2
Aluminum spade/spade
1210, 3010
1.2
Copper spade/spade
2410, 4515
1.2
Primary Bushings:
Bushing wells
200
15, 25 & 28
Integral loadbreak
bushing 3Ø rated
200
15, 25 & 35
Deadbreak apparatus
bushing
600
15, 25 & 35
Deadbreak PUSH-OP ®
apparatus bushing
600
15, 25 & 35
Primary and secondary porcelain bushings are
available in standard configurations or custom
made to unique configurations.
Primary Bushings
Zytel ® HTN
Secondary Bushings
Cooper Power Systems manufactures a
full range of 200 A loadbreak and 600 A
deadbreak connectors, complying with
ANSI Standards. A recent introduction
to the product line is Cooper’s new
European style deadbreak connectors,
meeting ANSI and IEC Standards.
Manufacturing these quality molded
rubber products is achieved by maintaining complete control of the process —
from the raw materials used to final
inspection. We formulate EPDM rubber
compounds from our own proprietary
formulas. All EPDM rubber is then mixed
in-house, using the most advanced
mixing system with integral process
control. Screw ram injection molding
technology provides optimum control
of critical molding parameters in
manufacturing these products.
Cooper engineers hold many patents
for innovations in loadbreak and
deadbreak technology.
Porcelain Bushings
Primary, secondary and specialty
electrical grade porcelain bushings
are available from Cooper. In manufacturing, all facets of the critical processes
used to make electrical grade porcelain,
including material mixing, turning
(shaping) and firing are automated and
computer controlled. Process control
provides superior mechanical strength
and unmatched dimensional part quality.
U-OP ™ Visible Break Switchgear Components
for Oil or SF 6 Applications
Cooper Power Systems manufactures
a variety of externally operated singleand three-phase oil switches to meet a
wide range of utility applications. Tap
changer, series multiple (dual voltage)
and loadbreak switches can be customized to meet special application
needs. Cooper switches offer design
flexibility to transformer manufacturers,
and safe, reliable operation to utility
line personnel.
Tap Changer Switches
Tap changer switches regulate
voltage in the transformer as lines
are extended and loads grow.
Loadbreak on/off switches, designed
with a tough, reliable spring loaded
activating mechanism, ensure quick
loadmake and loadbreak operations in
less than one cycle, and have an excellent field service record. The versatile
300 A, 38 kV rated, two-position loadbreak switch can be used for most
distribution transformer applications.
Series Multiple Switches
Series multiple switches connect transformer windings in series or in parallel,
resulting in a voltage change with a
simple turn of the switch once the
transformer has been de-energized.
This allows one transformer to be
used for two or three different voltage
systems, resulting in less transformer
inventory for a utility.
Three-phase, under-oil loadbreak
sectionalizing switches add versatility
in loop configurations. They allow
energization from either of two
sources, as well as feed-through
capability.
(A)
(kV)
Externally operated
1, 2, and 3 phase tap
changer switch
100, 150, 300
35
Externally operated
series multiple
(dual voltage) switches
50, 150, 300
25 & 35
Sectionalizing loadbreak
switches
200, 300, 600
15, 25 & 35
300
38
2-position on/off
loadbreak switches
Loadbreak
Switches
Surge arresters designed and manufactured by Cooper incorporate the latest
metal oxide varistor (MOV) technology.
Cooper offers two different surge arrester
designs: gapless MOV (VariSTAR ®) and
gapped MOV (VariGAP ®). The VariGAP’s
gapped configuration offers substantial
improvements in temporary overvoltage
performance, protective levels, and
durability over conventional gapless
arresters. VariSTAR arresters are
available for station, intermediate and
distribution classes. VariGAP arresters
are available in distribution class only.
For alternate transformer protection, the
VariSTAR Type AZU under-oil arrester
is available. The under-oil environment
keeps the arrester cooler and protects
it from surface contamination, wildlife
and vandalism.
Cooper’s STORM TRAPPER ® H. E.,
the industry’s first family of distribution
class, low voltage arresters can be used
on the secondary side of the transformer
for more complete overvoltage protection. Both external and under-oil designs
are available.
Porcelain and silicone rubber housed
arresters are used on overhead
distribution systems. A porcelain housing
provides high dielectric strength and
high external creepage distance.
Silicone rubber arresters are totally
non-fragmenting, providing increased
safety for personnel and equipment.
Silicone rubber offers superior track
resistance, surface hydrophobicity,
resistance to solar ultaviolet radiation,
and chemical inertness when compared
to other polymer materials on the
market today.
For deadfront pad-mounted transformer
installationsCooperoffers RTE ® M.O.V.E.
Elbow and Parking Stand arresters
in gapless and gapped MOV designs
in a premolded rubber elbow.
VariSTAR ®, VariGAP ® and
STORM TRAPPER ® Arresters
Low Voltage
Distribution Class
175-650V
Distribution Class
3-36 kV
Intermediate Class
3-120 kV
Station Class
3-312 kV
Elbow and Parking Stand
9-27 kV
Used in combination with feed-thru
bushing well inserts, elbow arresters
give primary side surge protection
for both loop-feed and radial-feed
transformers.
Parking stand arresters provide an
economical means of overvoltage
protection for energized but parked
open point cable runs. The VariGAP
arresteroffers previously unavailable
performance characteristics for
underground systems.
M.O.V.E.® Arresters
Under-oil Arrester and
Arrester Disconnector
Cooper Power Systems offers three
complete product lines of fusing equipment—RTE®, McGraw-Edison ® and
Combined Technologies ®. We have the
broadest range of overcurrent protective
devices to meet your application needs.
In the late 1960s, RTE introduced the
Bay-O-Net assembly and links to the
industry for pad-mounted transformer
protection. The Bay-O-Net fuse has
grown into the industry standard protection package for single- and three-phase
transformers. The assembly combines
the ease of hotstick operation with the
safety of deadfront construction and is
used with an isolation link to prevent
line personnel from closing into a fault
when replacing a blown Bay-O-Net link.
Alternately, a back-up, current-limiting
fuse can be used in place of the isolation link to increase interrupting ratings
to 50 kA.
The patented Flapper™ valve closes
when the stabber is removed, minimizing the risk of hot transformer oil spilling
from the tank, an added safety measure
for line personnel. The Flapper valve
minimizes environmental concerns and
reduces oil contamination on molded
rubber elbow connections.
RTE ® Flapper ™ Bay-O-Net ® Assembly
with ELSP Current-Limiting Backup Fuse
RTE ® Flapper ™
Bay-O-Net ® Assembly
®
A resettable primary breaker for
distribution transformers, the MagneX
Interrupter also switches the transformer
on and off. A primary breaker results in
dramatically lower losses than secondary
breakers saving energy and money.
It also eliminates core losses on
transformers not in service.
(A)
RTE ® Bay-O-Net ®, MagneX ® Interrupter
and Current-Limiting Fuses
Cooper Power Systems is an innovator
in full-range, current-limiting fuse
technology. Designed for areas where
available fault current levels are higher
than an expulsion fuse can withstand,
current-limiting fuses can be used in all
your applications to extend equipment
life, enhance power quality, reduce fire
hazards and increase safety to line
personnel and the public. Full range
current-limiting fuses have the ability
to successfully interrupt any normal
60 cycle current that will melt their
element. I2t testing verifying the integrity
of the silver ribbon is performed on each
current-limiting fuse before it leaves the
factory, assuring you of excellent performance in the field. Our extensive testing
and research and development capabilities have resulted inthe development of
many innovative new products, providing
overcurrent protective equipment
solutions to utility customers around
the world.
The MagneX Interrupter offers a solution
to the utility wanting to totally eliminate
oil exposure in the field when operation
occurs due to transformer overloads.
Eliminating the need for replacement
fuse links adds economic value to the
user. A MagneX interrupter in series
with a back-up, current-limiting fuse
offers additional protection.
(kV)
Full-range
current-limiting fuses
4-400 A
4.3-35 kV
Back-up under-oil
current-limiting fuses
30-400 A
8.3-23 kV
Bay-O-Net fuse links
and holder
6-125 A
8.3-23 kV
Edison ® links
1-200 A
15-38 kV
Current-limiting
power fuses
2-200 A
5.5-23 kV
Capacitor expulsion
and current-limiting
fuses
10-125 A
8.3-23 kV
MagneX® Interrupter
25 A
8.3-23 kV
Current-Limiting Fuses
®
R-Temp fluid is a fire-resistant hydrocarbon fluid (FRHF). This dielectric coolant
is formulated primarily for use in distribution transformers, where its unique
electrical, thermal and safety properties
offer many advantages. R-Temp fluid
is non-toxic and biodegradable. It is
compatible with standard insulating
materials, and processing equipment
and procedures. R-Temp fluid is also
referred to as a High Fire Point Fluid,
a High Molecular Weight Hydrocarbon,
or a Less-flammable Dielectric Liquid.
With its excellent performance characteristics and proven reliability, R-Temp
fluid is also used in a variety of other
equipment, including sectionalizing
switches, electromagnets, voltage
regulators, rectifiers and high voltage
substations.
The Thomas A. Edison Technical Center,
one of the most highly respected electrical research and development centers in
the world, uses the latest technologies
for product development and quality
control testing. Complete chemical
and material analysis, high power
(short-circuit), and voltage testing can
be conducted. Consulting services are
also available such as system studies,
field measurements and diagnostic
software. Technical workshops and
papers provide information to the industry, sharing practical recommendations
for solving complex system problems.
®
Envirotemp 200 fluid is a fire-resistant
dielectric coolant developed for applications requiring high performance under
extreme temperature conditions. Its
unique formulation provides a very low
freezing/melting point, well under -50°C.
Envirotemp 200 is a biodegradable
synthetic ester whose performance
has been augmented by proprietary
additives. The result is a low viscosity
fluid with excellent dielectric, thermal
and mechanical properties. These
properties make it particularly well suited
for forced liquid cooling applications, like
traction transformers.
Following is a list of the components
and protective equipment manufactured
byCooperPower Systems. This breadth
of product, and commitment to quality
and innovation, are what make Cooper
the best source for OEM equipment
manufacturers and the electrical industry.
VariSTAR ® STORM TRAPPER ®
High Energy Arrester
VariGAP ® AZS Arrester
VariGAP® AZSPArrester
VariGAP ® AZLPArrester
VariGAP ® AZLArrester
VariSTAR ® AZLArrester
VariSTAR ® AZLP Arrester
VariSTAR® AZU Arrester
VariSTAR ® AZS Arrester
VariGAP ® M.O.V.E Arrester
VariGAP ® Parking Stand Arrester
MOV Gapless Elbow Arrester
VariSTAR ® AZF Arrester
VariSTAR ® ATZ Arrester
RTE ® Tap Changer Switch
RTE ® Series Multiple (Dual Voltage) Switch
RTE ® Sectionalizing (Loadbreak) Switch
RTE ® Two Position Loadbreak Switch
ELF™ Current-limiting Dropout Fuse
SM-Limiter™ Current-limiting Dropout Fuse
X-Limiter™ Current-limiting Q Fuse
NX ® Companion ® Back-up
Current-limiting Fuse
K-Limiter™ Back-up Current-limiting Fuse
In-Line X-Limiter™ Current-limiting Fuse
NXD Fault Guard Tool
NXC ® Current-limiting Capacitor Fuse
Capacitor Expulsion Fuse Tube
Edison ® Links
RTE® Flapper Bay-O-Net Link
RTE® Bay-O-Net Links
ELSP Current-limiting Backup Fuse
MagneX ® Interrupter
ELS and EL Bay-O-Net
Oil-immersed Weak Link Fuse
X-Limiter™ Current-limiting Fuse
NX ® Indoor Current-limiting Fuse
ELX Full-range Current-limiting Fuse
NX ® II Full-range, Current-limiting
Air-insulated Fuse
BT X-Limiter™ Current-limiting Fuse
ELST Full-range Current-limiting
Tandem Fuse Assembly
ELSG Full-Range Current-limiting Fuse
SX-Limiter™ Current-limiting Fuse
ELG Current-limiting Power Fuse
EOD X-Limiter™ Power Fuse
Molded (Zytel ® HTN) Tri-clamp Bushings
Internal/External Spade Bushings
Integral Loadbreak Bushings
Integral Deadbreak Bushings
Integral PUSH-OP ® Deadbreak Bushings
Zytel ® HTN Bushing Well
RTE ® Loadbreak Elbows
RTE ® Loadbreak Bushing Insert
RTE ® Rotatable Feedthru Insert
PUSH-OP ® Connector System
U-OP™ Connector System
R-Temp ® Fluid
Envirotemp ® Fluid
NX ®, NXC ®, MagneX ®, Edison ®,
VariSTAR ®, STORM TRAPPER ®,
VariGAP ®, PUSH-OP ®, R-Temp ®,
Envirotemp®, McGraw-Edison ®
and RTE ® are all trademarks
of Cooper Industries, Inc.
Zytel ® is a registered trademark
of Dupont.
Cooper Power Systems
ISO9001-1994
Cert. #000449
Pewaukee, Wisconsin
Quality from
Cooper Industries
Cooper Power Systems Components and Protective Equipment
Bulletin 95054 Printed in USA MI12M1095 © 1995 Cooper Power Systems, Inc. All Rights Reserved.
1045 Hickory Street Pewaukee, WI 53072
(414) 691-0070