Hubbell D7, AR, D6 User Manual

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POWER SYSTEMS, INC.

OVERHEAD SWITCHES

Gang-Operated

Type AR, Type D7 and Type D6

14A

14A-1

The Chance Company warrants all products sold by it to be merchantable (as such term is defined in the Uniform Commercial Code) and to be free from defects in material and workmanship. Buyer

must notify the Company promptly of any claim under this warranty. The Buyer's exclusive remedy for breach of this warranty shall be the repair or replacement, F.O.B. factory, at the Company's

option, of any product defective under the warranty which is returned to the Company within one year from the date of shipment. NO OTHER WARRANTY, WHETHER EXPRESS OR ARISING BY

OPERATION OF LAW, COURSE OF DEALING, USAGE OF TRADE OR OTHERWISE IMPLIED, SHALL EXIST IN CONNECTION WITH THE COMPANY'S PRODUCTS OR ANY SALE OR USE

THEREOF. The Company shall in no event be liable for any loss of profits or any consequential or special damages incurred by Buyer. The Company's warranty shall run only to the first Buyer of a

product from the Company, from the Company's distributor, or from an original equipment manufacturer reselling the Company's product, and is non-assignable and non-transferable and shall be of

no force and effect if asserted by any person other than such first Buyer. This warranty applies only to the use of the product as intended by Seller and does not cover any misapplication or misuse of

said product.

The Chance Company does not warrant the accuracy of and results from product or system performance recommendations resulting from any engineering analysis or study. This applies regardless

of whether a charge is made for the recommendation, or if it is provided free of charge.

Responsibility for selection of the proper product or application rests solely with the purchaser. In the event of errors or inaccuracies determined to be caused by The Chance Company, its liability will

be limited to the re-performance of any such analysis or study.

Warranty - Material

Warranty - Application

NOTE: Because Hubbell has a policy of continuous product improvement, we reserve the right to change design and specifications without notice.

©

Copyright 2007 Hubbell Incorporated • 210 North Allen Street • Centralia, MO 65240 USA

Printed in USA

SEPTEMBER 2007HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI

14A-2

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POWER SYSTEMS, INC.

6,281,460; 6,409,135; 6,459,053;
6,541,717; 6,818,846; 6,946,607.

Type AR (Automation-Ready) Switch

14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt

U.S. Patents 6,207,919; 6,215,082;

Description

The Hubbell unitized Type AR switch is a distribution-level,
loadbreak, gang-operated side-break switch designed to
meet not only today’s needs but well into utilities’ future
of distribution automation. Designed for nominal system
voltages of 14.4kV and 25kV three- and four-wire systems
and 34.5kV grounded-wye systems. The Type AR switch is
available with a variety of options, and in ratings for present
and planned requirements.

To minimize eld installation time, the Type AR switch is
pre-assembled, adjusted and mounted on a crossarm. Instal­lation time is even faster for a Type AR switch with the hook
stick-operation option.

Horizontal Mounting

(Torsional
down-the-pole control shown)

Inverted Mounting

Variations and Configurations

The Type AR switch is available in ve basic congura­tions:

•Horizontal •Vertical

•Phase-over-Phase

•Delta •Inverted
All feature clockwise opening and are operable by torsional
or reciprocating controls as well a hookstick operation option
(full-length down-the-pole control or crossarm-mounted hook
stick-operation control).

1. Full-length down-the-pole controls consist of Torsional
swing-handle operation for Horizontal, Delta and Inverted
switches and Reciprocating pump-handle operation for Verti­cal and Phase-over-Phase switches. (Standard Duty or Heavy
Duty conrols are available for Vertical and Phase-over-Phase
switches.) Switch open or close positions locking provisions
are provided.

2. Crossarm-mounted hook stick-operation controls

provide pull-to-open / pull-to-close switch with maximum
target hook stick accessibility.

Features:

All three phase switches feature a four-link overtoggle mecha­nism to assure locked closed blades, mechanical advantage
for easier open and close operation, and "snap" feedback to
the operator.

Phase­over­Phase

(Hook stick control shown)

Vertical Mounting

(Reciprocating
down-the-pole control shown)

Mounting

(Reciprocating
down-the-pole
control shown)

Delta Mounting

(Hook
stick control
shown)

Type AR Switch Ratings

Nominal Voltage/Lightning Impulse Withstand .... 14.4 kV/110 kV, 25 kV/150 kV or 34.5 kV grounded-wye/150 kV

Continuous Current ................................................. 900 amperes

Interrupting Current ............................................... 900 amperes

Peak Withstand Current...........................................65,000 amperes peak

Short Time Withstand Current...........3 sec.............25,000 amperes, symmetrical

Fault Making: 1 time ................. ..........................25,000 amperes, asymmetrical

3 time ................. ..........................20,000 amperes, asymmetrical

Dead-ending: .............................................................8,000-lb. working load

Ice Breaking: ............................................................

SEPTEMBER 2007 HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI

3

/4-in. thick, opening and closing

®

®

POWER SYSTEMS, INC.

Type AR (Automation-Ready) Switch

14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt

14A-3

Feature —

• Automation-ready design

Advantage —

• Compatiblewithtoday’sD/Aenvironmentbyaddingamotoroperator

and RTU of your choice, or upgrade in the future

• 900-ampcontinuousand

• Meetspresentandfutureoperationrequirements

interruption current rating

• Four-linkovertoggle

mechanism

• Mechanicaladvantagereducesoperatingtorquetothelowestlevel

in the industry to date

• Overtoggle feature assures blades are closed and gives “snap”

feedback to the operator

• Hookstickoperation

capability

• Unitized,pre-assembled

• Minimizesinstallationtime,reducespossiblevandalism,eliminates

control adjustments

• Minimizesinstallationtimeandeliminatescontroladjustments

construction

• Fourmountingarrangements

• Meetsvariousutilityinstallationrequirements

7

Interrupter

5

6

8

4

3

2

1

Available Options

Hook stick Operation The Type AR switch can be operated

by a hook stick operation. This option eliminates control
pipe sections down the pole and their attendant adjustment
during installation and maintenance.

Extra Pipe The extra pipe section includes guide, coupling,
and all hardware for attachment.

Extension Links When deadending to the AR switch, exten-
sion links must be used to give needed clearance. The end
clevis has a slotted hole for inserting the machine bolt with­out having to remove the extension bar. The extension links
supplied are 14 inches long, hot-dip galvanized, and REA
accepted. Catalog No. C2070112; six required per switch.

Surge Arrester Brackets Three brackets can be supplied
for mounting six surge arresters (utility supplied) for over­voltage protection.

Sensor Brackets Extension Brackets can be supplied, or
added to the AR Switch, to allow for the additon of line volt­age/current sensors.

Single Phase of Type AR Switch

(1) Hot-rolled steel base formed into a channel and galvanized
per ASTM A153.

(2) Hot-rolled crank lever provides high strength and corro­sion resistance. Galvanized per ASTM A153.

(3) Delrin
shaft eliminates the need for lubrication during the life of
the switch.

(4) Insulators available in 2.25" bolt circle, porcelain or
polymer.

(5) High-conductivity copper with phosphorous-bronze back­up springs and copper-tungsten fault-closing tips provide reli­able contact areas. Silver-to-silver current-transfer points.

(6) Blade formed from hard-drawn, high-conductivity copper
for maximum current carrying capability.

(7) Interrupter provides current interruption without exter­nal arc or ame. High-strength polyurethane material for
strength, weatherability and UV resistance. Bolted tongue­in-groove mounting ensures positive alignment.

(8) Polycarbonate ice shield helps protect contacts from ice
build up.

Crossarm Braces Crossarm braces may be specied as an
option.

ESP

inch bolt circle, are available in a U.S.-manufactured ESP
polymer design. They are light weight, durable, and they offer
long-term performance in every type of environment.

Terminal Connectors Catalog No. ATC1343, fortied cadmi­um-plated aluminum parallel-groove clamp can be supplied
with switches. Six per switch.

Cable Range:
Minimum No. 2 solid copper [0.258 inch (6.55 mm)] to
maximum 500 kcmil copper [0.811 inch (20.60 mm)].

Control Insulator One 150 kV LIW (Lightining Impulse With­stand - BIL) polymer insulator in vertical control pipe.

Captive Hardware Two stainless-steel spline bolts pressed
into each terminal pad, nuts and lockwashers included.

®

bushing coupled with a cast aluminum rotating

™

polymer Insulators The distribution insulators, 2.25-

SEPTEMBER 2007HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI

14A-4

®

®

POWER SYSTEMS, INC.

Type AR (Automation-Ready) Switch

14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt

Horizontal Mounting

SEPTEMBER 2007 HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI

®

®

POWER SYSTEMS, INC.

Type AR (Automation-Ready) Switch

14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt

Vertical Mounting

14A-5

SEPTEMBER 2007HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI

14A-6

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POWER SYSTEMS, INC.

7-1/4"
184 MM

(17.1KV)16-1/4"
413 MM
(29KV)19-1/4"
489 MM

ALL MOUNTING HARDWARE
5/8"(16 MM)DIA

23-1/2"
597 MM

28 FT(8.5 M)MAX
WITHOUT ADDITION
OF PIPE SECTION

ENF OF
CROSSARM

VIEW "A"-"A"

6-1/2"
165 MM

25"
635 MM

4"(102 MM)SQUARE CROSSARM
GALV STEEL OR FIBERGLASS

2-1/2"
64 MM

81-1/2"
2070 MM

8-1/2"
216 MM

11-1/2"
292 MM

99"
2515 MM

10"
254 MM

14"
356 MM

14"
356 MM

6"
152 MM

32"
813 MM

32"
813 MM

SIDE VIEW

STANDARD CONTROL
TYPE "S" AND "F"

3/4"(19 MM)NPS GALV PIPE
OR 1"(25 MM)FIBERGLASS ROD

TOP SECTION
3/4"(19 MM)
NPS GALV PIPE
OR 1"(25 MM)
FIBERGLASS ROD

COUPLINGS

GUIDES

ALL LOWER
SECTIONS
3/4"(19 MM)
NPS GALV PIPE

85"
216 MM
(TYPICAL)

(TYPICAL)

"B-B"

RECIPROCATING
HANDLE

GROUND
STRAP

"B"

"B"

HEAVY DUTY CONTROL

TYPE "T" AND "G"

AS REQUIRED
BY USER

NAMEPLATE

OPEN AND CLOSED
LOCKING PROVISIONS

6"
152 MM

TOP SECTION
1-1/4"(32 MM)
NPS GALV PIPE
OR FIBERGLASS

STEADY LEVER

ALL LOWER
SECTIONS
1-1/4"(32 MM)
NPS GALV PIPE

6"
152 MM
(TYPICAL)

86-3/4"
2203 MM

84"
2134 MM
(TYPICAL)

"A"

"A"

Type AR (Automation-Ready) Switch

14.4kV, 25kV or 34.5kV 900 Amperes Continuous/Interrupt

Phase-over-Phase Mounting

SEPTEMBER 2007 HUBBELL / CHANCE COMPANY – CENTRALIA, MISSOURI