aparta ohio brass

OCTOBER 1996

3 1 - 1

OHIO BRASS WADSWORTH, OHIO

POWER SYSTEMS, INC.

Printed in USA

Section31

ISO 9001-94Cert. No. 002196

Ohio Brass Co.Wadsworth, OH USA

ANSI/IEEE C62.11 TESTEDIEC 99-4 TESTED

DynaVarDistribution Class (PDV) and

Riser Pole (PVR) Surge Arresters

OCTOBER 1996 OHIO BRASS WADSWORTH, OHIO

3 1 - 2

POWER SYSTEMS, INC.

Copyright 1996 Ohio Brass Company 8711 Wadsworth Road Wadsworth, OH 44281NOTE: Because Ohio Brass has a policy of continuous product improvement, it reserves the right to change design and specifications without notice.

Warranty - MaterialOhio Brass warrants all products sold by it to be merchantable (as such term is defined in theUniform Commercial Code) and to be free from defects in material and workmanship. Buyermust notify the Company promptly of any claim under this warranty. The Buyer's exclusiveremedy for breach of this warranty shall be the repair or replacement, F.O.B. factory, at theCompany's option, of any product defective under the warranty which is returned to theCompany within one year from the date of shipment. NO OTHER WARRANTY, WHETHEREXPRESS OR ARISING BY OPERATION OF LAW, COURSE OF DEALING, USAGE OFTRADE OR OTHERWISE IMPLIED, SHALL EXIST IN CONNECTION WITH THE COMPANY'SPRODUCTS OR ANY SALE OR USE THEREOF. The Company shall in no event be liable forany loss of profits or any consequential or special damages incurred by Buyer. The Company'swarranty shall run only to the first Buyer of a product from the Company, from the Company'sdistributor, or from an original equipment manufacturer reselling the Company's product, and isnon-assignable and non-transferable and shall be of no force and effect if asserted by anyperson other than such first Buyer. This warranty applies only to the use of the product asintended by Seller and does not cover any misapplication or misuse of said product.

Warranty - ApplicationOhio Brass does not warrant the accuracy of and results from product or system performancerecommendations resulting from any engineering analysis or study. This applies regardless ofwhether 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. Inthe event of errors or inaccuracies determined to be caused by Ohio Brass, its liability will belimited to the re-performance of any such analysis or study.

Table of ContentsPage

Warranty........................................................... 31-2Introduction ...................................................... 31-2PDV/PVR Distribution Surge Arresters ............ 31-3

Alloy ESP Housing ....................................... 31-3Basic Construction........................................ 31-3Benefits ......................................................... 31-3

Tests Verify PDV/PVR Arrester Design ........... 31-4Full Scale Fault Current Tests ...................... 31-4Fault Current Withstand Ratings .................. 31-5Design Test Report Summary ...................... 31-5

Sectional View of PDV/PVR Arrester ............... 31-6Effect of Arrester Lead Length ......................... 31-7DynaVar PDV/PVR

Overvoltage Protection ................................. 31-8Recommended MCOV ................................. 31-8

Mounting HardwareOptional Attachments ................................... 31-9How to Specify a 7000 Code Suffix .............. 31-9Tightening Torques for PDV/PVR Arrester

Fasteners .................................................. 31-9Options Table ............................................... 31-9

Typical Mounting Configurationsand Hardware ............................................. 31-10

PDV/PVR Electrical Characteristics ............... 31-12Insulation Coordination .................................. 31-13PDV/PVR

Dimensions ..................................... 31-14, 31-15Leakage Distances ......................... 31-14, 31-15Dimension Diagrams ...................... 31-14, 31-15

IntroductionOhio Brass offers a full line of polymer arresters fordistribution voltages. The PVR targets cable applica-tions where low discharge voltages promote longercable life. The PDV-100 is a heavy duty arrester madefor overhead distribution equipment protection. ThePDV-65 offers cost effective lightning performance withonly slightly lower capabilities.These arresters combine the advantages of a polymerhousing and metal-oxide varistor valve blocks. On thefollowing pages are descriptions of the benefits, designtest reports and arrester accessories.PDV/PVR arresters join an impressive list of advancesthat Ohio Brass has brought to arrester technologysince it began making arresters in 1950. Improvementsin design have increased protective margins anddurability. More important in terms of dollars andservice reliability, Ohio Brass arresters have enabledequipment manufacturers to lower insulation levels andsaved millions of dollars for power companies.

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POWER SYSTEMS, INC.

The polymer-housed arrester can be used with all standardmounting arms and brackets. They come with all the neces-sary fasteners, isolators and terminal attachments. A spe-cially designed glass-filled polyester insulating arm extendsfrom the arrester to the NEMA crossarm bracket, eliminatingthe need for installation of a metal clamping band around thearrester. The insulating arm not only eliminates the rust andcorrosion sometimes encountered with a metal clampingband, but also has been treated with an inhibitor to resistultraviolet damage.BenefitsThe PDV/PVR housing material excels in tolerance toweather extremes from desert heat to arctic cold, and resistsdamage from ultraviolet rays and ozone. Samples of thepolymer have survived the equivalent of over 50 years ofaccelerated ultraviolet testing.If the PDV/PVR arresters are dropped or otherwise mis-handled, there is little risk of damage, in contrast to thebrittleness of porcelain. Internal parts cannot move. The riskof vandalism is reduced. A bullet can penetrate the housing,causing arrester failure. But polymer does not shatter as doesporcelain, which scatters sharp fragments.A PDV/PVR arrester weighs less than its porcelain counter-part, again making it easier to handle and less costly to ship.The PDV/PVR arresters are suitable for a number of differentapplications, such as transformer mounting, enclosed inswitchgear or underhung in line protection applications.As non-ceramic arresters, the PDV/PVR offer an imposing listof benefits. The capability of failing with less danger toequipment and personnel, durability and ease of handlinglead the list. The PDV/PVR arrester is a worthy developmentin the long list of Ohio Brass surge arrester innovationsinnovations that have regularly improved protective levels,lowered costs of protection and enabled utilities to operateequipment with lower basic insulation levels, with savings ofmillions of dollars.

Note: The PDV/PVR arresters comply with ANSI and IECstandards for distribution arresters.

PDV-100 and PDV-65 DistributionSurge ArrestersThe PDV-100 arrester was introduced in 1986 as the firstU.S. non-ceramic arrester for heavy duty applications. TheOhio Brass Company then expanded its line of polymer-housed distribution arresters with a normal duty PDV-65 andPVR arrester.The polymer housing on these arresters offers many benefitsnever before available. For example, the arrester virtuallyeliminates the opportunity for damage from mishandling inpacking, shipping and installation. Because the PDV does nothave an internal atmosphere, failure from breathing orpumping moisture through minute cracks or other imperfec-tions is also eliminated.The application of system overvoltage, above arrester designlimits, may result in failure as with all arresters. The housingsplits or tears in contrast to the potentially violent failuremode of porcelain into many sharp fragments. The potentialdanger to nearby equipment and personnel is reduceddrastically.The PDV/PVR arresters have the same high-quality metal-oxide varistor material used in other Ohio Brass DynaVarstation, intermediate and distribution arresters which haveoperated successfully for over 15 years. PDV/PVR have allthe gapless MOV advantages such as high temporaryovervoltage capability, contamination resistance, improvedsurge-duty capability and excellent protective characteristics.Alloy ESP HousingThe PDV/PVR arrester housing is made from the same ESPrubber material used in high voltage insulators. The ESPhousing resists tracking from surface leakage currents.Leakage distance is exceptional.In addition to the performance record as an insulator material,ESPs excellent properties have been confirmed in a series ofperformance tests that include tracking resistance, contami-nation, aging and seal design. As with polymer insulators,polymer arresters have high cantilever and tensile strengths.Basic ConstructionThe polymer housing fits like a tight elastic glove around theinternal components in contrast to porcelain housings whichare separated from the varistors. Even though vacuumpumps can remove most moisture from the space inside theporcelain housing, a source of potential trouble can develop ifsmall cracks let additional moisture enter the housing.In the PDV/PVR arresters, the varistors are locked in placewith tightly wound layers of fiberglass filament impregnatedwith epoxy resin. The polymer housing design excludes airand moisture. The inside diameter of the housing is slightlysmaller than the outside diameter of the cylindrical elementproviding a snug fit.The basic PDV/PVR housing is only six inches long for a 10kV unit 50 to 60 percent shorter than the porcelainequivalent.A great advantage of the PDV/PVR construction is that faultwithstand capability can be maintained throughout thevoltage range. The fault current capability of porcelain isreduced as the housing lengthens.


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POWER SYSTEMS, INC.

Tests Verify PDV & PVR Arrester DesignOhio Brass introduced the Multirester II distribution arrestertwenty years ago. This design had an automatic pressurerelief system at the lower end and greatly reduced theprobability of porcelain fragmentation following failure whileenergized in service. However, the desirability of pressurerelief was not widely recognized and few utilities consideredthe benefits worth the added cost and manufacture wasdiscontinued after a few years.A decade later, the desirability of pressure relief in distributionarresters became more widely recognized. A design testprocedure was incorporated into ANSI Standard C62.1 andseveral designs with end venting systems, sometimesenhanced with arc transfer systems and/or use of internalliners, have been available in recent years. All of thesedesigns continued the use of porcelain housings. Therefore, ifrated fault current magnitude, or duration, is exceeded, therisk of porcelain fragmentation remains.The ESP polymer-housed PDV/PVR arresters with epoxy/fiberglass-wrapped MOV disc modules eliminates the majorhazard of an arrester failure by not having a porcelainhousing to explode if a power arc is established within thearrester.

Full Scale Fault Current TestsA series of full voltage tests was conducted in accordancewith Section 8.10 of ANSI/IEEE C62.11-1993 to determinethe failure modes of the PDV/PVR arresters. The 8.4 kVMCOV specimens were assembled with fine fuse wireshunting the blocks before assembly within the module. Asdescribed by the standard, this technique simulates the resultof arrester failure by internal dielectric breakdown.Fault currents of 500 to 20,000 amperes RMS symmetrical fordurations of 10 to 120 cycles were used in these studies onthe PDV-100/PVR arrester. Fault currents of 500 to 10,000amperes RMS symmetrical for durations of 10 to 120 cycleswere used in the PDV-65 studies. Successful performancewas demonstrated when the epoxy/fiberglass-wrappedmodules either ruptured or burned through to relieve internalpressure. The polymer housings then split open to relievepressure. At high fault currents the housing may becomedetached from the MOV module. Since higher voltagearresters were assembled by modular construction, the testresults are valid for all arrester voltage ratings.The test sequence was recorded by ultra high-speed moviesand camera photographs of the before and after condition ofthe arresters.

An 8.4 kV MCOV/10 kV rated PDV-100 arrester mounted fora fault current withstand test.

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POWER SYSTEMS, INC.

PDV/PVR Design Test Report SummaryThe PDV-100 and PDV-65 arresters have been tested inaccordance with ANSI Standard C62.11-1993 for metal-oxidesurge arresters. There is no ANSI Standard for PVR arrestersso they were tested per the heavy duty requirement.The PDV-100/PVR meet or exceed all the requirements forheavy-duty distribution arrester designs. The PDV-65 meetsor exceeds all requirements for normal duty surge arresters.The table below summarizes the capabilities of thesedesigns.

The above is merely a summary of a portion of the designtests performed on PDV/PVR arresters. Contact your OhioBrass district manager for complete test reports on these twoarresters.

Heavy DutyPDV-100

+Riser Pole PVR

2 - 100 kADischarges

20 - 250A x 2000sec Discharges

20 - 10 kAplus

2 - 40 kADischarges

Test

High Current-Short Duration

Low CurrentLong Duration

Duty Cycle

Normal DutyPDV-65

2 - 65 kADischarges

20 - 75A x 2000sec Discharges

22 - 5 kADischarges

The PDV-100 epoxy-fiberglass-wrapped metal-oxide discmodules ruptured to relieve the internal pressure generatedby a fault current arc of 10 kA for 10 cycles. The polymerhousing has been split open, but the housing remainsattached.

PDV Arresters

FAULT CURRENT WITHSTAND RATINGS

Current Magnitude(Amps-Sym rms)

5002,5005,000

10,000

5002,5005,000

10,00020,000

Test Duration(Cycles)

120603010

12060301010

PDV-65 Arrester

PDV-100 and PVR


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POWER SYSTEMS, INC.

Typical Cross SectionsPDV/PVR Arresters

Stainless SteelTerminal Stud

Stainless Steel Cap

End Terminal

Live Silicone Interface

Alloy ESP Rubber Housing

Metal Oxide Varistor

Belleville Washer

Epoxy-Fiberglass Wrap

Metal Oxide Varistor

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POWER SYSTEMS, INC.

Arrester Lead Length

The first step in reducing voltage stress to extend the life ofinsulated equipment is to use metal-oxide varistor (MOV)arresters which have lower discharge voltage levels thanequivalent silicon-carbide (SiC) designs.The next step in reducing voltage stress is the use ofoptimum connection methods for the arrester lead wires.The highest current surge voltage stress occurs whenlightning strokes to the overhead line have fast rates-of-rise.An arrester discharge current which reaches its crest in 1sec will produce 10% more voltage across an MOV arrester,and 30% more voltage across an SIC arrester, than will thestandard 8 sec test waves used to establish the comparativeIR discharge voltage data shown in arrester catalogs. Addingto the surge voltage across the arrester is the L di/dt inductivedrop in the lead wire carrying the surge current.It is now known that fast-rising arrester discharge currents aremuch more common than previously believed. In the late1970s, more accurate measurements of arrester surgecurrents were taken which showed rates-or-rise at 13 kA/sec in half of the discharges, with a maximum value of 60kA/sec. Consistent with this relatively new data, a realisticestimate for the lead wire voltage drop in arrester installationsexposed to lightning is 6 kV/foot - this value is now used forcalculating the protective margins under fast-front surgeconditions.

Many pole mounted transformer installations use arrestersmounted on the crossarm. Such installations tend to havevery long arrester leads which greatly increase surge voltagestress on transformer windings. Arrester lead is the combinedlength of line and ground lead wire in series with the arresterAND in parallel with the protected device (transformer in thiscase).An arrester with lead length of 10 feet can typically add 60 kVto the arrester discharge voltage during fast-front lightningsurges. Typical arresters used in this type (13.2 kV system,95 kV BIL) of installation would discharge such a surge atabout 36.5 kV, making the total voltage surge on the trans-former 96.5 kV. This leaves a protective margin to the 110 kVchopped-wave withstand of only 11% well below the 20%minimum recommended.However, the protective margin could be greatly improved bymoving the ground connection of the transformers up the poleto just under the crossarm, to where the arrester groundleads meet the pole ground. This connection method wouldreduce arrester lead from ten to five feet. Lead wire inductivedrop would then be reduced from 60 to 30 kV. Total voltagestress on the transformers would be reduced to 71 kV andthe protective margin would be increased to a comfortable55%.

For more information on lead length, please requestpublication EU1202-H.


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POWER SYSTEMS, INC.

DynaVar PDV-100 and PDV-65Distribution Class Surge Arrestersand PVR Riser Pole TypeMetal-oxide type surge arresters have been acknowledged asa major improvement in surge protection over conventionalsilicon-carbide designs. Ohio Brass has manufactured bothstation class and intermediate class metal-oxide surgearresters since 1981.

DynaVar PDV-65 and PDV-100 metal-oxide varistors.

EffectivelyGrounded

Neutral Circuits

2.55

7.657.658.48.4

12.715.3

15.322.0

Maximum2.544.45.087.26

12.713.213.9714.5222.024.224.3426.436.5

Nominal2.44.164.86.9

12.012.4713.213.820.7822.8623.024.9434.5

ImpedanceGrounded

and UngroundedCircuits

2.555.15.17.65

12.7

15.322.022.022.0

Arrester MCOV-kVSystem L-L VoltagekV

NORMALLY RECOMMENDED DYNAVAR PDV/PVRMCOV FOR VARIOUS SYSTEM VOLTAGES

Selection of arrester size is based upon the maximumcontinuous operating voltage (MCOV) that is applied acrossthe arrester in service (line-to-ground). For arresters oneffectively grounded systems, this is normally the maximumline-to-ground voltage -- e.g., 7.65 kV on a 12.47 kV multi-grounded system. For ungrounded or impedance-groundedsystems, the MCOV should be at least 90 percent of maxi-mum phase-to-phase voltage. Smaller arresters than shownmay be used, contact your Ohio Brass representative fordetails.For convenience, the catalog data shown on page 12includes the traditional duty-cycle voltage rating associatedwith the MCOV of each arrester.

DynaVar PDV-100 arrester being installed.

60 Hz Temporary Overvoltage CapabilityType PVR With and Without Prior Duty

Volta

ge P

er U

nit M

COV

60 Hz Temporary Overvoltage CapabilityType PDV With and Without Prior Duty

Volta

ge P

er U

nit M

COV

Time Duration - Seconds

Time Duration - SecondsDynaVar PDV/PVR arresters are gapless and all the system line-to-ground voltage appearson the metal-oxide valve elements. The blocks can withstand significant overvoltage for alimited time, depending on the magnitude of any immediately preceding surge duty. Theycan withstand 1.1 percent of MCOV for periods of 2000 hours, up to five percent of the life ofthe arrester.

PVR arresters can withstand about 3.4 KJ/KV of MCOV within one minute. DynaVar PDV-100 arresters can absorb up to 2.2 kJ per kV of MCOV within one minute. DynaVar PDV-65arresters can absorb up to 1.4 kJ per kV of MCOV within one minute. This maximum energyrating may be repeated many times provided there is a sufficient cooling time to keeparrester temperature at reasonable levels.

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POWER SYSTEMS, INC.

*Must be ordered in conjunction with codes 7000, 7060 or 7070.

The DynaVar PDV/PVRs significant advantages over otherdistribution arresters include:1. Temporary overvoltage capability.2. Improved surge duty capability.3. Better contamination performance gapless design.4. Simpler design with fewer parts.5. Improved protective characteristics.6. Extended leakage distance for high contamination area.7. Lighter weight.8. Vandal resistant.9. Polymer housing with fault current capability up to 20,000

Amps for the PDV-100/PVR heavy duty arrester and faultcurrent capability up to 10,000 Amps for the PDV-65normal duty arrester.

Optional Attachments for PDV &PVR Surge ArrestersThe installed cost of distribution arresters can be held to aminimum by ordering only the attachments specificallyrequired for the application. Ohio Brass simplifies thisprocedure by offering a variety of interchangeable accesso-ries which can be obtained by combining a coded suffixnumber with the basic arrester catalog number. The samesuffix numbers apply to accessories for the PDV/PVR.The coded suffix number is determined by replacing the 0s inthe 7000 code with the appropriate number digit to specifythe required accessories. The first digit after the 7 describesthe line terminal hardware; the second digit describes themounting hardware; and the third digit describes the groundterminal hardware. An 0 in any of the three positionsindicates that no attachment for that position is beingordered.The tabulation at the bottom of this page can be used toobtain the suffix code for all common attachments offered byOhio Brass. The illustrations (on pages 10 and 11) providethe suffix code for some of the more popular combinations.Ohio Brass district managers have information on additionaloptional attachments not listed in this catalog. Recommenda-tions will be made upon request.How to Specify a 7000 Suffix(Example) To obtain the 7000 code suffix number for a 10 kVduty cycle rated PDV-65 arrester equipped with a lineterminal, wire clamp, insulating base bracket, NEMAcrossarm hanger for a 4 x 5 crossarm and a ground leadisolator with terminal nut, follow this procedure:

7XX3Isolator, Nut,Ground StrapWasher

7XX2*Nut, Washers& ThreadedTerminal Nut

7XX1*3/8" Stud(No Option)

7XX6*Ground Strap,Nut, Washers& ThreadedTerminal Nut

7XX5Isolator, Nut,Protective Cap(2 Slot), Washer& ThreadedTerminal Nut

7XX4Isolator, Nut,Washer &ThreadedTerminal Nut

7XX7*Nut, Washers& ThreadedTerminal Nut

TABLE C LOWER TERMINAL HARDWARE

7X0XNo BracketNo Isolator

7X1XInsulatedBase Bracketwith Isolator

7X3XInsulatedBase Bracketwith Isolator andTransformerBracket

7X2XInsulatedBase Bracketwith Isolator& NEMA 4x5X-Arm Bracket

7X5XInsulatedBase Bracketwith Isolator& NEMA 6x6X-Arm Bracket

7X6XMetal BaseMountingStrap

7X4XInsulatedBase Bracketwith Isolatorand NEMAAngle Bracket

7X7XMetal BaseMountingStrap andNEMA 4x5X-Arm Bracket

TABLE B MOUNTING HARDWARE

71XX3/8" Stud(No Option)

72XXNut & WireClamp

73XXNut, WireClamp &Protective Cap(One Slot)

74XXNut, WireClamp &Protective Cap(One Hole)

75XXNut, WireClamp,Protective Cap(One Slot), & 18" Wire Lead

TABLE A TOP TERMINAL HARDWARE

RecommendedTightening Torque20 foot pounds20 foot pounds20 foot pounds

Fastener38 inch line terminal38 inch ground terminal12 inch fastener connectingbase bracket to crossarm ortransformer sidewall bracket

76XXFlipper FuseAssemblyNut & WireClamp

77XXNut, Wire Clamp,3-PieceProtective Cap

RECOMMENDED TIGHTENING TORQUES FORPDV ARRESTER FASTENERS

Step 1 - The catalog number (page 12) of the basic 10 kVPDV-65 arrester is 217259.Step 2 - The 7200 code in the table below specifies the topterminal and wire clamp.Step 3 - The 7020 code specifies the insulating base bracketand 4 x 5 NEMA crossarm hanger.Step 4 - The 7004 code specifies the ground lead isolator,terminal nut and nut.Step 5 - Combine the three suffix digits following the 7 in theircorrect order gives us the suffix code: 7224.Step 6 - Order the arrester by complete catalog number217259-7224.Notes:1. The ground isolator identifies in codes 7003, 7004 and7005 is an integral part of the insulating base bracket. Thecolor for the insulating base bracket/ground lead isolatorassembly is ANSI-70 gray.2. Code 7030 identifies the insulating base bracket/trans-former mounting bracket combination. The transformermounting bracket used in code 7030 is Ohio Brass partnumber 273066-4004 ( 8.4 kV MCOV) and 273025 - 4004( 10.2 kV MCOV). A drawing of this bracket is included onpage 11 to assist in applying this arrester. Also shown aredrawings of the insulating base brackets used with the PDV/PVR arresters. Insulating base bracket 273206 is used withPDV/PVR arresters MCOVs 8.4 kV and below and insulatingbracket 273207 is used with PDV/PVR arresters 10.2 kV - 29kV MCOV. Contact your Ohio Brass representative for furtherinformation.3. All terminals are solderless, clamp type, suitable forconductor sizes from No. 6 AWG solid to No. 2 AWGstranded.If the spacing of the mounting holes on mounting bracketslisted are not suitable for the intended application, othermounting brackets are available and in these cases, the OhioBrass district manager should be consulted.


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POWER SYSTEMS, INC.

Typical MountingConfigurations and

Hardware

PVRCatalog No. 218609-7314

Note: All PDV/PVR arrestersinclude voltage rating

identification on undersideof insulating bracket.

PDV-100Catalog No. 213615-7214

PDV-65Catalog No. 217265-7224

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POWER SYSTEMS, INC.

Part No. 273207-3001Used on 10.2 kV MCOV and above.

Leakage Distance = 734"Strike Distance = 458"

Part No. 273206-3001Used on 8.4 kV MCOV and below.

Leakage Distance = 578"Strike Distance = 234"

Part No. 273025-4004

Part No. 273066-4004


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POWER SYSTEMS, INC.

8/20 Maximum Discharge Voltage - kV



1.5 kA

6.513.019.321.225.932.338.642.851.657.963.577.2

3 kA

7.014.021.023.028.035.041.946.455.962.969.083.8

5 kA

7.414.721.924.029.436.643.848.658.565.772.087.6

10 kA

8.116.224.026.532.340.248.053.664.272.079.596.0

20 kA

9.018.127.029.836.245.154.060.272.181.089.4

108.0

40 kA

10.621.131.634.842.252.763.270.584.394.8

104.4126.6

0.5 sec10kA Maximum

IR-kV

8.717.425.728.534.843.151.457.668.877.185.5

102.8

500 ASwitching SurgeMaximum IR-kV

5.811.717.519.223.329.134.938.746.652.457.669.8

DutyCycle

VoltageRating

kV

369

101215182124273036

MCOVkV

2.555.17.658.4

10.212.715.31719.52224.429

CatalogNumber

218603218605218608218609218610218613218615218617218620218622218624218629

1.5 kA

9.819.526.027.039.045.552.055.071.578.081.0

104.0

3 kA

10.320.528.029.541.048.556.060.076.584.088.5

112.0

5 kA

11.022.030.031.544.052.060.064.082.090.094.5

120.0

10 kA

12.324.533.036.049.057.566.073.090.599.0

108.0132.0

20 kA

14.328.539.041.557.067.578.084.0

106.5117.0124.5156.0

40 kA

18.537.050.553.074.087.5

101.0107.0138.0151.5159.0202.0

UnitCatalogNumber

217253217255217258217259217260217263217265217267217270217272217274217279

0.5 sec5kA Maximum

IR-kV

12.525.033.536.050.058.567.073.092.0

100.5108.0134.0


8.517.023.024.034.040.046.049.063.069.072.092.0

RatedVoltage

kV

369

101215182124273036

MCOVkV

2.555.17.658.4

10.212.715.317.019.522.024.429.0

Normal DutyPDV-65 Electrical Characteristics

Riser-PolePVR Electrical Characteristics

1.5 kA

9.519.024.526.038.038.446.049.261.669.276.892.0

3 kA

10.020.026.028.032.941.049.152.565.873.982.098.2

5 kA

10.521.027.529.534.843.452.055.769.678.286.8

104.0

10 kA

11.022.030.032.038.548.057.561.577.086.596.0

115.0

20 kA

13.026.035.037.543.854.665.469.987.698.4

109.2130.8

40 kA

15.330.541.043.551.564.276.982.2

103.0115.7128.4153.8

RatedVoltage

kV

369

101215182124273036

UnitCatalogNumber

217602217605217608217609213610213613213615213617213620213622213624213629

0.5 sec10kA Maximum

IR-kV

12.525.034.036.543.554.265.069.587.097.7

108.4130.0


8.016.022.523.528.235.042.144.956.463.270.084.2

MCOVkV

2.555.17.658.4

10.212.715.317.019.522.024.429.0

Heavy DutyPDV-100 Electrical Characteristics

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POWER SYSTEMS, INC.

Fig. 1PDV-100

METAL-OXIDE ARRESTER INSULATION COORDINATION34.5 kV System

Fig. 2PDV-65

METAL-OXIDE ARRESTER INSULATION COORDINATION34.5 kV System

Insulation CoordinationThese electrical characteristics are used to determineprotective margins for insulation levels in use.These two figures illustrate a 34.5 kV effectivelygrounded system, 150 kV BIL, protected with 22 kVMCOV Type PDV arresters.Figure 1 shows equipment protected with a PDV-100arrester Catalog Number 213622 and Figure 2 shows thesame equipment protected with a PDV-65 arresterCatalog Number 217272.The protective margins are calculated using the followingformula:

Insulation LevelArrester Discharge Voltage( - 1 x 100 = % Margin)

The insulation levels are obtained from the manufacturerof the equipment being protected. The arrester dischargevoltages are obtained from the table on page 12.For example, the protective margin for the BIL isdetermined by first finding the arrester discharge voltageat the impulse current level selected. In this example, the10 kA discharge current is used as representative oftypical lightning stroke currents discharged through thearrester. The 10 kA 8/20 discharge voltage of catalognumber 213622 is 86.5 kV. The percent protectivemargin using the formula is:

( 150 kV86.5 kV - 1 x 100 =73 percent.)The protective margins for other impulse currents arefound in a similar fashion. In the case of the PDV-65arrester, the 10 kA 8/20 discharge voltage of the arresteris 99 kV. This results in a protective margin of 52percent.These examples include many simplifying assumptions.Not included are the effects of faster rates of current riseon the discharge voltage, reduced insulation levels dueto various factors, and line and ground leads.For example, if the effect of lead length was included inthe calculations and 1.6 kV per foot of lead length addedto the discharge voltage of the arrester. With two feet ofline lead and two feet of ground lead, 6.4 kV is added tothe published discharge voltage of the arrester. There-fore, the discharge voltage of the PDV-100 is effectively92.9 kV, resulting in a reduction of protective margin to61 percent at 10 kA. In the case of the PDV-65 arrester,the 99 kV discharge voltage of the arrester is added tothe 6.4 kV from the leads resulting in equipment seeing105.4 kV reducing the protective margin to 42 percent.The chopped wave strength of the insulation beingprotected is typically coordinated with the .5 secdischarge voltage of the surge arrester. The heavy dutyPDV-100 uses a 10 kA current while the PDV-65 catalogvalue is for a 5 kA peak current.The switching surge insulation level of the equipment is

coordinated with the 500 ampere switching discharge voltage ofthe surge arrester.The effects of faster rates of rise and of reduced insulationstrength due to aging effects would result in further reducedprotective margins.Industry standards recommend minimum margins of 20 percentfor the chopped wave and BIL levels and 15 percent for switchingsurge protection.

Time to Voltage Crest in Microseconds

Time to Voltage Crest in Microseconds

Cres

t Vol

tage

in k

V

.1 1 10 100 1000 1000060Hz

Cres

t Vol

tage

in k

V

.1 1 10 100 1000 1000060Hz


3 1 - 1 4

POWER SYSTEMS, INC.

Mounting Clearance (1) Net WeightsUnit with

Insulating BaseBracket and

NEMA Bracketpounds

5.76.56.56.57.87.88.48.4

12.012.012.013.2

Unit withInsulating

Base Bracketpounds

3.24.04.04.05.45.46.06.09.59.59.5

10.7

UnitOnly

pounds2.43.13.13.14.34.34.94.98.58.58.59.7

CenterLine toGroundinches33.444.25.56.57.58.0

10.011.012.014.5

CenterLine to

Center Lineinches55.466.27.58.59.5

10.012.013.014.016.5

LeakageDistanceTerminalto Baseinches

8.015.415.415.426.026.026.026.052.052.052.052.0

XOverallHeightinches

7.09.39.39.3

12.312.312.312.321.021.021.021.0

MCOVkV2.555.17.658.4

10.212.715.317.019.522.024.429.0

RatedVoltage

kV369

101215182124273036


Insulating BaseBracket and

NEMA Bracketpounds

6.06.06.06.0

10.310.310.310.312.512.512.515.8

Unit withInsulating

Base Bracketpounds

3.53.53.53.56.76.76.76.7

10.010.010.013.3

UnitOnly

pounds2.62.62.62.65.65.65.65.68.98.98.9

12.2

CenterLine toGroundinches33.23.84.15.76.77.78.2

10.211.211.814.4

CenterLine to

Center Lineinches4.855.65.87.58.59.5

10121313.616.2


15.415.415.415.430.830.830.830.846.246.246.261.6


9.39.39.39.3

14.714.714.714.720.120.120.125.4

MCOVkV2.555.17.658.4

10.212.715.317.019.522.024.429.0

RatedVoltage

kV369

101215182124273036

Riser PoleDynaVar PVR Surge Arresters Dimensions, Leakage Distances, Mounting Clearances & Weights

(1) Center line to center line is equivalent to phase-to-phase; center line to ground is equivalent to phase-to-ground. These are recommended minimum clearancesonly and as such are not intended to take precedence over existing construction codes or specifications.For appropriate packed weight, add .5 lb. per arrester.


Insulating Bracket,Isolator and

NEMA Bracketpounds

7.27.27.27.2

11.011.011.011.014.514.514.518.0

Unit withInsulating

Base Bracketpounds

4.74.74.74.78.58.58.58.5

12.012.012.015.5

UnitOnly

pounds3.73.73.73.77.27.27.27.2

10.710.710.714.2

CenterLine toGroundinches33.37544.255.8756.8757.8758.375

10.37511.3751215

CenterLine to

Center Lineinches55.37566.257.8758.8759.875

10.37512.37513.3751417


15.415.415.415.430.830.830.830.846.246.246.261.6

MCOVkV2.555.17.658.4

10.212.715.317.019.522.024.429.0

RatedVoltage

kV369

101215182124273036


9.39.39.39.3

14.714.714.714.720.120.120.125.4

NormalDutyDynaVar PDV-65 Surge Arresters Dimensions, Leakage Distances, Mounting Clearances & Weights

Heavy DutyDynaVar PDV-100 Surge Arresters Dimensions, Leakage Distances, Mounting Clearances & Weights

OCTOBER 1996

3 1 - 1 5


POWER SYSTEMS, INC.

Mounting ClearancesRefer to Columns marked Mounting Clearance for DynaVarPDV-65, PDV-100 and PVR mounting clearances as desig-nated in the mounting clearance diagram. Tabulated clear-ances are recommended minimums and are subjected tomodifications explained in Note 1.

Dimension DiagramsRefer to column marked X overall height for DynaVar PDV-65, PDV-100 and PVR dimension indicated X on thedrawing.

Leakage DistancesRefer to Column marked Leakage Distance for DynaVarPDV-65, PDV-100 and PVR leakage distances dimensionedin the leakage distance diagram.

Identification MarkingsIdentification markings will be on the bottom of the insulatingbase bracket for easy identification. The markings designatethe duty cycle voltage. Also there is a bright orange label forriser arresters.

PVRRISER

PVR

213615-7214

LeakageDistance


3 1 - 1 6

POWER SYSTEMS, INC.

Hubbell/Ohio Brass manufactures a complete line of transmission anddistribution arresters and insulators. Over seven million PDV/PVR arresters protect

distribution lines and over 6,000 miles of transmission line have beenbuilt with Hi*Lite insulators worldwide.

Quality Productsfor over 100 years

Polymer-Housed Arresters PDV-65 for normal duty PDV-100 for heavy duty PVR for riser pole PVI for intermediate class PVN for station class

Polymer Insulators Hi*Lite suspension, line posts,

station posts and braced linepost assemblies for transmission

Veri*Lite distribution andsubtransmission insulators

Protecta*Lite arrester andinsulator combination for lineswith lightning interruptionproblems

Quality, Experience, Service, Dependability.

The Ohio Brass Company

POWER SYSTEMS, INC.

OCTOBER 1996

3 1 - 1 7


POWER SYSTEMS, INC.

Distribution Class (PDV) andRiser Pole (PVR) Surge Arresters

Rated 0.5 sec 500 AVoltage MCOV Catalog 10kA Maximum Switching Surge

kV kV Number IR-kV Maximum IR-kV 1.5 kA 3 kA 5 kA 10 kA 20 kA 40 kA

12 10.2 213510 43.5 28.2 30.8 32.9 34.8 38.5 43.8 051.524 19.5 213520 87.0 56.4 61.6 65.8 69.6 77.0 87.6 103.0

8/20 Maximum Discharge Voltage - kVHeavy Duty PDV-100 Electrical Characteristics

Rated Previous ReplacedType Voltage kV MCOV Cat.# By Cat.#

PDV-100 12 10.2 213610 213510PDV-100 24 19.5 213620 213520PDV-65 12 10.2 217260 217560PDV-65 24 19.5 217270 217570PDV-65 36 29.0 217279 217579



03 02.55 221603 9.9 6.6 7.2 7.8 8.2 9.1 10.4 12.306 5.1 221605 20.0 13.3 14.6 15.7 16.6 18.3 21.0 24.809 7.65 221608 26.8 17.8 19.5 21.0 22.2 24.5 28.1 33.210 8.4 221609 29.5 19.6 21.5 23.1 24.4 27.0 31.0 36.612 10.2 221610 35.5 23.6 25.9 27.9 29.4 32.5 37.3 44.015 12.7 221613 44.2 29.4 32.2 34.7 36.7 40.5 46.5 54.818 15.3 221615 53.4 35.5 38.9 41.9 44.3 48.9 56.1 66.221 17.0 221617 60.7 40.3 44.3 47.6 50.3 55.6 63.8 75.324 19.5 221620 70.9 47.1 51.7 55.6 58.7 64.9 74.4 87.927 22.0 221622 78.6 52.2 57.3 61.7 65.2 72.0 82.6 97.530 24.4 221624 88.5 58.7 64.5 69.4 73.3 81.0 92.9 110.036 29.0 221629 105.0 69.7 76.5 82.4 87.0 96.1 110.0 130.0

All Ohio Brass Arresters are fully compliant with ANSI/IEEE C62.11 Standard

8/20 Maximum Discharge Voltage - kVRiser Pole PVR-Electrical Characteristics

All Riser Pole Cat.# 2186XX series being discontinued and replaced with the following:



12 10.2 217560 050.0 34.0 039.0 041.0 044.0 049.0 057.0 074.024 19.5 217570 092.0 63.0 071.5 076.5 082.0 090.5 106.5 138.036 29.0 217579 134.0 92.0 104.0 112.0 120.0 132.0 156.0 202.0


Normal Duty PDV-65-Electrical Characteristics

SUPPLEMENTAL CATALOGBULLETIN 31-16.1

July 2000

POWER SYSTEMS, INC.


3 1 - 1 8

POWER SYSTEMS, INC.

POWER SYSTEMS, INC.

SUPPLEMENTAL CATALOGBULLETIN 31-16.2

July 2000

Heavy Duty PDV-100 Mounting Clearances

RatedVoltage MCOV

CatalogNumber

"X"OverallHeight

LeakageDistanceTerminalto Base

CenterLine toCenter

Line

CenterLine toGround

Unit withInsulating

BaseBracket

Adder forCrossarmBracket

HousingDiameter

kV kV inches inches inches inches pounds pounds inches

12 10.2 213510 9.4 15.4 7.5 5.5 5.5 2.55 424 19.5 213520 14.6 30.8 12.0 10.0 10.3 2.55 4

Normal Duty PDV-65 Mounting Clearances

RatedVoltage MCOV

CatalogNumber

"X"OverallHeight


CenterLine toCenterLine

CenterLine toGround

Unit withInsulating

BaseBracket


HousingDiameter


12 10.2 217560 9.4 15.4 5.8 4.1 3.8 2.55 3.6324 19.5 217570 14.7 30.8 12.0 10.2 8.0 2.55 3.6336 29.0 217579 20.2 46.2 16.2 14.4 7.0 2.55 3.62

Riser Pole PVR Mounting Clearances

RatedVoltage MCOV

CatalogNumber

"X"OverallHeight


CenterLine toCenterLine

CenterLine toGround

Unit withInsulating

BaseBracket


HousingDiameter


3 2.55 221603 7.0 8.0 5.0 3.0 3.3 2.5 4.06 5.1 221605 9.4 15.4 5.3 3.3 4.1 2.5 4.09 7.65 221608 9.4 15.4 5.8 3.8 4.1 2.5 4.0

10 8.4 221609 9.4 15.4 6.0 4.0 4.1 2.5 4.012 10.2 221610 9.4 15.4 7.3 5.3 4.3 2.5 4.015 12.7 221613 12.4 26.0 8.3 6.3 5.5 2.5 4.518 15.3 221615 12.4 26.0 9.2 7.2 6.1 2.5 4.521 17.0 221617 12.4 26.0 9.7 7.7 6.1 2.5 4.524 19.5 221620 14.7 30.8 11.6 9.6 7.4 2.5 4.027 22.0 221622 21.1 52.0 12.5 10.5 9.6 2.5 4.530 24.4 221624 21.1 52.0 13.5 11.5 9.6 2.5 4.536 29.0 221629 21.1 52.0 16.0 14.0 10.8 2.5 4.5

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