TAB B - Type A Pad Mount Oil-Insulated Switchgear Reference.pdf

MOST

Oil-Insulated Switchgear

Wide Selection on a Narrow Budget.

CAP1027134 TAB B

Kyle’s MOST padmounted switchgear provides a simple, economical approach to switching for 15, 25, and 35kV underground systems.

MOST padmounted switchgear is versatile in application. It is suited for utility and commercial/industrial requirements, and a wide selection of fuse ratings make it easily adaptable to standardized distribution systems. MOST switchgear fits the majority of standard pads and is compatible with commonly used tools and techniques.

MOST switchgear and components are products of Cooper Power Systems, proven by years of continuous field experience.

Deadfront Construction For Added Safety The deadfront construction of MOST padmounted switchgear offers a safety factor for utility personnel and the general public.

Inside, all terminators are covered with insulating rubber. All internal parts are completely sealed in insulating oil to reduce maintenance and eliminate the problems of moisture, dirt, and wildlife commonly associated with air-insulated switchgear.

The deadfront, non-ventilated, tamper-resistant construction of low-profile MOST switchgear makes it suitable for operation in areas subject to excessive moisture, occasional flooding and blowing snow.

Durable Paint Finish Keeping your switchgear painted in the field is important, not only because it extends the operational life of the unit, but also because customers expect you to keep equipment you install near their property looking good.

With the cost of repainting, the durability of the factory finish can have a significant impact on your maintenance budget.

Painted with the most advanced coating system in the industry (similar to that used in the automotive industry), MOST Switchgear retains a like-new protective finish years after others have blistered, cracked, chalked, or rusted.

Cooper Power Systems’ MOST Switchgear exceeds the requirements of ANSI C57.12.28 and C57.12.29.

MOST means just what it says – simple, economical, suitable for both utility and commercial/industrial applications and versatile with a wide selection of fuse ratings to make it easily adaptable to pretty much any distribution system.

Get the most out of MOST.

KYLE MOST OIL-INSULATED SWITCHGEAR

15, 25, 35kV

Sealed Tank

Simple, Economical Operation

Low Profile

Field-Proven Components

Switching and Fusing Flexibility

Deadfront Construction

Fusing The Cooper type ELSG full-range, current-limiting fuses provide consistent clearing of low currents, as well as reliable, high-speed interruption of high-magnitude short circuit currents.

In addition to providing excellent protective characteristics over a wide range of applications, the “E”-rated ELSG fuses have time-current characteristics that coordinate easily with other upstream and downstream protective devices.

MOST Switching System The Kyle three-phase, gang-operated loadmake/loadbreak oil sectionalizing switches used in MOST switchgear have a history of more than thirty years of successful application.

Positive position indicators assure safe operation.

The side-mounted switch can be operated by shotgun stick or an optional manually operated handle. Front-mounted switches are also available.

Four switch designs (below) are available: two-position open/close; four-position selector blade; four-position “V” blade; and four-position “T” blade. Kyle’s “V” and “T” blade designs are unique in that they perform the function of three separate open/close switches. Combining multiple functions on one switch permits quicker and more reliable operation. For applications where parallel loops are required, break-before-make operation is guaranteed.

When oil sectionalizing switches are used, the need for interlocks is eliminated.

Deadfront Bushings (600A) or Bushing Wells (200A)

Fuse Holders (Fuses sold separately)

A B

A B

C

A B

C

A B

C

S T Close

S T Open

S1 TS2

S1 T-

S1 TS2

S2 T-

S1 TS2

Open

S1 TS2

Open

S1 TS2

S2 T-

S1 TS2

S1/ T-S2

S1 TS2

Open

S1 TS2

S1 T-

S1 TS2

S2 T-

S1 TS2

S1/ T-S2

S1 TS2 S1 TS2

S1/S2S1 T-

Switch center is pivot point.

Black segments of blade rotate.

White segments are stationary.

“T” Blade

“V” Blade

Selector Blade

OPEN/CLOSE

Phase Diagram

600A/600A

Bushing Amperage Rating (Source/Tap)

One-Line Voltage Typical Model Diagram (kV) Catalog Number

One-Line Voltage Typical Model Diagram (kV) Catalog Number

600A

200A 200A T1 T2

S

600A

200A 200A T1 T2

S

600A 600A

200A

S1S2

T

600A 600A

200A T

S1S2

T1 T2 200A 200A

600A 600A S2 S1

S1S2 600A 600A

200A 200A T1 T2

600A S T

600A

200A 200A S T

200A 200A

200A T

S2 S1

200A 200A S T

S 600A

200A T1

200A T2

200A T3

S 600A

200A T1

200A T2

200A T3

600A S

600A T1

600A T2

S1S2 600A 600A

600A T1 T2

600A

S1S2 600A 600A

200A T1 S3

600A

S1S2 600A 600A

200A T1 S3

600A

S 600A

200A T1

200A T2

200A T3

* Replace the last digit of the catalog with the appropriate digit from the Bushings Amperage Ratings table.

Contact your Cooper Power Systems representative for information on configurations not listed.

KPMT1031

KPMT1034

KPMT1039

KPMT1132

KPMT1135

KPMT1139

KPMT11B32

KPMT11B35

KPMT11B39

KPMT1232

KPMT1235

KPMT1239

KPMT12B32

KPMT12B35

KPMT12B39

KPMT15B32

KPMT15B35

KPMT15B39

KPMT13A31

KPMT13A34

KPMT13A37

MOST Selection and Ordering Guide*

Ratings of MOST Padmounted Switchgear

Nominal Voltage 15kV 25kV 35kV

Maximum Design Voltage, kV . . . . . . . . . . . . . . . . 15.5 27 38 BIL, kV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 125 150 1-Minute Withstand, Switch and Terminators, kV . . 34 40 50 Continuous Current, Amps (max.) . . . . . . . . . . . . . 600 300 200* Load Switching, Amps . . . . . . . . . . . . . . . . . . . . . 600 300 200* Momentary Current 10 Cycles, Amps (asym.) . . . . 16,000 16,000 16,000 2 Sec., Amps (sym.) . . . . . . . . . . . . . . . . . . . . . . . 10,000 10,000 10,000 3 Shot Make and Latch Amps (asym.) . . . . . . . . . . 16,000 16,000 9,600 Interrupting Rating (kA) (1) . . . . . . . . . . . . . . . . . . 50 20 - 50 12.2 - 50

(1) Interrupting rating for fused units depends on the selected fuses and the application voltage.

* An alternate two-position OPEN-CLOSE switch is available for 15kV, 25kV and 35kV designs that has a 300A continuous and load switching rating. This alternate switch meets ANSI C37.71 and C37.72 requirements.

©2003 Cooper Power Systems, Inc.

Kyle® is a registered trademark of Cooper Industries, Inc.

KDL

2/03

Bulletin 01044 • February 2003 • Supersedes 3/02

P.O. Box 1640, Waukesha, WI 53187

PH 262-524-3300 FAX 262-524-3313

www.cooperpower.com

KPMT4A33

KPMT4A36

KPMT4A39

KPMT632

KPMT635

KPMT639

KPMT6B32

KPMT6B35

KPMT6B39

KPMT732

KPMT735

KPMT739

KPMT7B32

KPMT7B35

KPMT7B39

KPMT932

KPMT935

KPMT939

KPMT9B32

KPMT9B35

KPMT9B39

KPMT331

KPMT334

KPMT339

KPMT433

KPMT436

KPMT339

KPMT533

KPMT536

KPMT539

4A

6B

7B

9B

3 10

11B

12B

13A

15B

Bushing Guide

Voltage

Rating 600A/200A 200A/200A

15kV 1 2 3 25kV 4 5 6 35kV 7 8 9

Underground Distribution Switchgear

Functional Specification Guide

Type MOST, Oil-Insulated Switchgear G285-20-1

1 of 9 • September 2012 • New Issue ©2012 Cooper Industries. All Rights Reserved.

Functional Specification for 15 kV, 25 kV, or 35 kV Underground Distribution Switchgear

1. Scope

1.1. This specification applies to three-phase, [select #] - way [select # -source, select # -tap], 50-60 Hz, fully dead front, sectionalizing underground distribution switchgear; with maximum main bus rating of [select:

200 or 600] amperes continuous current and maximum tap rating of [select: 200 or 600] amperes. Source switching shall be accomplished with under-oil switches.. Tap overcurrent protection shall be accomplished utilizing drawout under-oil current-limiting fuses.

1.2. The unit is to be insulated with [select: E200 less-flammable fluid for operation to minus 30 degrees C, Envirotemp™ FR3™ less-flammable fluid for operation to 0 degrees C (32 degrees F), or mineral oil for operation to minus 30 degrees C,] dielectric, contained in a sealed tank design, so operation is unimpaired by flood conditions or contaminated environments (except control). The unit shall utilize under-oil sectionalizing switches for current loadbreak switching. The unit shall be designed for installation on a concrete or fiberglass pad at ground level.

1.3. This specification shall only cover the purchase and shipment of switchgear. The purchaser and/or user shall be responsible for all site-work, electrical connections, and installation.

2. Applicable Standards

IEEE Std C37.74™-2003 standard – IEEE Standard Requirements for Subsurface, Vault, and Pad-Mounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems Up to 38 kV

IEEE Std C57.12.28™-2005 standard – Standard for Pad-Mounted Equipment - Enclosure Integrity

IEEE Std C57.12.29™-2005 standard – IEEE Standard for Pad-Mounted Equipment - Enclosure Integrity for Coastal Environments – applicable when stainless steel construction is specified

IEEE Std 386™-2006 standard – Standard for Separable Insulated Connector Systems for Power Distribution Systems Above 600 V

IEC 801-3 – Radiated Electromagnetic Field Requirements

IEC 68-2-30 – Environmental Testing

2 of 9 • September 2012 • New Issue

3. Ratings

3.1. The switchgear shall be rated as follows:

Nominal Voltage 15 kV 25 kV 35 kV

Maximum Design Voltage………………………………… 15.5 27 38

BIL……………………………………………………………………. 95 125 150

1-minute Withstand Switch* and Terminators… 34 40 50

Continuous Current, amps…………………………. 600 300 200*

Load Switching, amps………………………………………. 600 300 200*

Momentary Current 10 Cycles, amps (asym.)….. 16,000 16,000 16,000 2 Sec., Short Time Current, amps (sym.)………………………………………….. 10,000 10,000 10,000

3 Shot Make and Latch amps (asym.)………………. 16,000 16,000 9,600

* If specified, an alternate 2-position Open-Close switch shall be provided that shall have a 300-amp continuous and load-switching rating and meet the performance of IEEE Std C37.74™-2003 standard.

3.2. The switchgear shall have an ambient operating temperature range of -30 ºC to +40 ºC.

4. Construction

4.1. The underground distribution switchgear shall consist of a 2-sided, sealed insulation tank, and separate front and rear cable compartments. Overall height, width, depth and layout shall conform to the manufacturer’s standard construction practices for the configuration, ratings, and voltage class specified.

Standard construction shall be of [select: mild steel with stainless steel hardware or 100% 304L stainless steel].

4.2. The liquid-filled unit shall have a tamperproof bolted tank cover design, utilizing Buna-N rubber gaskets.

The sealed tank (with deadfront terminators installed) shall be capable of withstanding flood immersion while energized, and shall be impervious to contaminants and animals, so as not to compromise the main insulation structure. The cable compartments shall be located at the front and back of the tank respectively.

The main cable compartments may house a combination of source way(s) and load or tap way(s). All switch operating handles shall be located on the same front plate as the ways that they operate, in order to reduce the likelihood of operating an incorrect switch. Recessed lifting provisions for suitable balanced lift shall be provided on the tank ends.

4.3. Cable compartments shall both have a minimum depth of [select: 16, 22, 26 or 30 inches], to provide ease of cable installation and allow for the addition of termination accessories.

4.4. Top-hinged cabinet style doors shall be provided. Top hinged doors will allow access to cable terminations with swing-up type doors with door stays and stainless steel hinges. Units wider than 46 inches shall have split doors to allow easy operation by one person. Both source and tap doors must be able to open fully at the same time. Each door shall have a floating lock pocket with padlock hasp and pentahead stainless steel door bolt.

4.5. Cabinet construction shall meet all NEMA and ANSI security requirements as defined in the IEEE

C57.12.28-2005 standard and the construction requirements of the IEEE Std C37.74™-2003 standard.

4.6. Units shall be shipped complete with [select: E200 less-flammable fluid for operation to minus 30 degrees C, Envirotemp™ FR3™ less-flammable fluid for operation to 0 degrees C (32 degrees F), or mineral oil for operation to minus 30 degrees C].

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4.7. Select below based on insulation requirements.

4.8. [select: for liquid dielectric switchgear, The unit shall be equipped with a 1-inch oil-fill plug and a 1-inch drain plug with 3/8” sampler. A single automatic pressure relief valve shall be supplied that is hotstick-operable and located on the source-side front plate above the oil level indicator within the switchgear. The unit shall have sight gages to monitor the dielectric level located on each unit side equipped with an operating handle.]

4.9. [select: A 1/2-13 UNC stainless steel ground nut shall be provided that is welded to the switchgear tank and mounted beneath each bushing, or, The manufacturer shall provide a factory assembled 1/2-inch diameter copper ground rod in each compartment, for use with user’s grounded clamps, that shall provide a 3 inch clearance from the ground rod to the front plate of the tank to accommodate grounding of the insulated connectors.]

4.10. A non-corrosive operating diagram (one-line schematic of the unit) shall be affixed to the inside of the right hand, first opening door, on both sides of the unit, if two (2) sided. A single nameplate shall be provided that is mounted on the source side tank front plate in the upper right hand corner. The nameplate shall contain the following information:

Catalog Number/Model Number

Serial Number

Nominal voltage class, kV

Rated maximum voltage, kV

BIL, kV

Manufacturing Date: MM/YYYY

Rated continuous current, A

Rated load interrupting rating, A

Momentary current rating, kA asym.

Close & latch rating, kA asym.

Total weight, lbs.

Liquid dielectric volume (gallons)

4.11. Three (3) Faulted Circuit Indicator mounting provisions shall be provided in the sills beneath the cabinet doors at the position of each way. The provisions shall include a 1-1/16 diameter hole sized for a Cooper Power Systems type S.T.A.R. fault indicator small remote display, cover plate, and tamperproof mounting bolts. There shall be provisions for mounting at least one fault indicator for each equipment bushing.

4.12. Bushings

4.12.1. Bushings shall be deadfront type for use with separable connectors conforming to IEEE Std

386™-2006 standard and ANSI Standard C119.2. The source ways shall have a continuous current rating of [select: 600 ampere with bushings, or 200 ampere with wells for bushing inserts].

Tap ways shall have a continuous current rating of [select: 600 ampere with bushings, or 200 ampere with wells for bushing inserts.]

4.12.2. [select: Six hundred (600) ampere bushings, or The two-hundred (200) ampere wells] shall be horizontally configured at 24 inches above the pad and accept molded, separable deadfront connectors. Bushings shall be mounted with minimum spacing of 8.0-inches between centerlines, except between the C-phase bushings which may be a minimum of 7.0-inches. A standoff bracket or parking stand shall be supplied for each bushing and shall be mounted horizontally adjacent to each bushing on a 4.0-inch centerline from the bushing centerline. The standard phasing of the bushings from left to right shall follow the sequence ABC-CBA. Each bushing shall have identification affixed to the front plate identifying its source or tap designation, as shown on the one-line operating diagram, and its phase identification.

4 of 9 • September 2012 • New Issue

4.12.3. Where 35 kV rated switchgear with 200 amp sources or taps are specified, [select: Cooper Power Systems one-piece, loadbreak, large interface, integral bushings shall be supplied, or, bushing wells shall be supplied for use with small interface, user furnished, inserts.]

4.13. Source Switches

4.13.1. Source Switches shall use Cooper Power Systems three-phase gang-operated loadmake/loadbreak oil sectionalizing switches that meet the performance requirements of the IEEE Std C37.74™-2003 standard. The switch mechanism shall use a manually-charged, stored-energy, spring-loaded over-toggle assembly, which is independent of operator speed. The switch shall operate by rotation of the operating handle. The switch shall provide positive latching in each position and shall have positive indication of switch position. A 2-position single-blade Open- Closed type, 3-position single-blade Selector type, 4-position V -blade type, or 4-position T-blade type sectionalizing switch shall be provided as indicated in the one-line diagram given for the switchgear configuration that is required. The operating handles shall be sidemounted and in a separate tamper-resistant compartment that is integral to the tank, externally accessible, and secured with a pentahead bolt that may be padlocked for security. Frontplate mounted switch operating handles shall be available as an option. The switch shall be operable by a hotstick or by an optional “T” handle accessory. Each switch shall have provisions for field installed key interocks.

5. Fusing

5.1. Overcurrent protection shall be provided by Cooper Power Systems types ELSG or SX-Limiter under-oil full-range current-limiting fuses that shall be mounted in Cooper Power Systems type ELSG wet well drawout fuseholders.

5.2. 15 kV rated switchgear shall be provided with fuseholders that accept 8.3 kV maximum rated fuses. 25 kV rated switchgear shall be provided with fuseholders that accept 15.5 kV or 23.0 kV maximum rated fuses.

35 kV rated switchgear shall be provided with fuseholders that accept 23.0 kV maximum rated fuses.

Note: 15 kV delta = use 25 kV rated switchgear

5.3. The switchgear shall be provided with fuseholders only unless otherwise specified.

6. Finish Performance Requirements:

6.1. The switchgear shall be constructed of mild steel with stainless steel details and painted green conforming to Munsell 7GY 3.29/1.5. The coating system employed shall meet or exceed IEEE Std C57.12.28™-2005 standard coating system requirements for underground distribution equipment, including the following performance tests:

1500-hour 5% salt spray corrosion test per ASTM B117 / D1654

1000-hour humidity test per ASTM D2247 / D1654

500-hour ultraviolet accelerated weathering test per ASTM G53 / D523

Direct impact test with 160 in. lb. falling dart per ASTM D2794

Tabor abrasion test 3,000 cycles per ASTM D4060

Crosshatch adhesion per ASTM D3359

6.2. [select (additionally): for stainless steel], The switchgear and its compartments shall be constructed of 100% 304L stainless steel painted green conforming to Munsell 7GY 3.29/1.5. The coating system employed shall meet or exceed IEEE Std C57.12.29™-2005 standard coating system requirements for underground distribution equipment in coastal environments,]

7. [select: Optional Features]

7.1. Interlocks

5 of 9 • September 2012 • New Issue

7.1.1. When specified, mounting provisions for Kirk key interlocks shall be provided on each switched way. The actual interlocking key scheme and the interlocks will be furnished by the purchaser.

7.2. 200 ampere bushing well switch module inserts.

7.3. T-handle (for manual operation of switch handles without using hotstick).

7.4. Fault indicator mounting provisions located on the source and tap compartment door sill.

7.5. Spare fuse storage rack.

8. Certified Design Test Data:

8.1. Certified design test data shall be furnished upon request. The test data shall be available for the following:

Switch ratings per IEEE Std C37.74™-2003 standard

Coatings per [select: IEEE Std C57.12.28™-2005 or IEEE Std C57.12.29™-2005 standard]

9. Production Testing - The unit shall be subjected to the following production tests:

Continuity test to assure correct internal connections.

Hi-pot test to determine dielectric strength of the unit.

Pressure test to assure tank is completely sealed.

10. Submittals

10.1. The manufacturer shall furnish a detailed list of ratings and accessories and set of drawings defined as follows [select optional: drawings for approval] :

Detailed front elevation

Single Line

Base Plan

Schematics

10.2. The manufacturer shall furnish instruction manuals covering the installation of the switchgear and the operation of its various components.

11. Quality Assurance

11.1. The manufacturer shall be a company specializing in medium-voltage underground distribution switchgear with at least fifteen years of documented experience.

11.2. Equipment shall be built in accordance with the industry standards for medium-voltage equipment.

11.3. The manufacturer shall be registered and certified as ISO 9001 compliant by a recognized international and independent body.

12. Warranty

13. The underground distribution switchgear shall be provided with a one-year warranty in-service/18 months maximum from date of shipment.

14. Approved Manufacturers

Cooper Power Systems

6 of 9 • September 2012 • New Issue

APPENDIX A: MODELS AND WAYS

These notes are for the user of this specification guide and are not intended to be a part of the specification.

Definitions:

WAY - A “way” is defined as a connection from the exterior (either a source or a tap) to the interior switchgear bus that may be a direct electrical connection or a connection via switch or a fuse. The total number of “ways” is the sum of all sources and taps. An internal bus tie switch is not a way.

MODEL or MODEL NUMBER – A shorthand method to describe a bus arrangement that includes sources, taps and tie switches that further defines the presence of switches, fuses, and direct connections to the bus. This allows one to describe bus common arrangements without creating or transmitting drawings. Typical model number arrangements follow; these may be modified to accommodate any possible arrangement of the circuit elements.

INSERT A MODEL DIAGRAM INTO THE SPECIFICATION FROM THIS LIST OR CREATE A SKETCH

(maximum of 6 ways, total):

Model 3

Model 4

Model 4A Model 5

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Model 6 Model 6B

Model 7 Model 7B

Model 8 Model 8B

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Model 9

Model 9A

Model 9B Model 10

Model 11 Model 11B

Model 12 Model 12B

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Model 13 Model 13A

Model 14

Model 15

Model 15B Model S

Envirotemp™ and FR3™ are licensed trademarks of Cargill, Incorporated.