pararrayos pexlim+q x

Publ. SESWG/A 2226en PEXLIM Q1

Zinc oxide surge arresterPEXLIM Q

ABB Switchgear

10 kA, line discharge class 3as per IEC

Station class as per ANSI

Silicone rubber insulator

Design/test standards asIEC 60099-4; ANSI/IEEE C62.11


Surge arrester PEXLIM Q

Protection of switchgear,transformers and other equipment inhigh voltage and extra high voltagenetworks against atmospheric andswitching overvoltages

Brief performance data

System voltages (Um) 52 - 420 kV *)

Rated voltages (Ur) 42 - 360 kV *)

Nominal discharge current (IEC) 10 kAcrest

Classifying current (ANSI/IEEE) 10 kAcrest

Discharge current withstand strength:High current 4/10 µs 100 kAcrestLow current 2400 µs 700 AcrestLow current 2000 µs 900 Acrest

Energy capability:

Line discharge class (IEC) Class 3

[2 impulses, (IEC Cl. 7.5.5) 7.4 kJ/kV (Ur)]

Fulfils/exceeds requirements of ANSI transmission-

line discharge test for 362 kV systems.

Short-circuit capability 50 kAsym

External insulation Fulfils/exceedsstandards

Mechanical strengthMax. usable bending moment 2500 NmDynamic bending moment 4000 Nm

Service conditionsAmbient temperature -50 °C to +45 °C

Altitude max. 1 000 m**)

Frequency 15 - 62 Hz

*) Higher ratings on request.**) Higher altitudes on request.

Contents

3 Definitions4 Design5 Selection of arrester6 Guaranteed protective data8 Dimensions9 Neutral ground arresters10 Quality control and testing11 Accessories12 Shipping data

Superior where low weight, reducedclearances, flexible mounting, non-fragility and additional personnelsafety is required.

Major component in PEXLINKTM

concept for transmission lineprotection.

in areas with high lightningintensityfor long lineswhere grounding or shieldingconditions are poor or incomplete.where pollution is highfor important installations.

-

--

--


Definitions

Maximum system voltage (Um)The max. voltage between phases during normalservice.

Nominal discharge current (IEC)The peak value of the lightning current impulse, whichis used to classify the arrester.

Lightning classifying current (ANSI/IEEE)The designated lightning current used to perform theclassification tests.

Rated voltage (Ur)An arrester fulfilling the IEC standard must withstandits rated voltage for 10 s after being preheated to 60 °Cand subjected to energy injection as defined in thestandard. Thus, Ur shall equal at least the 10 s TOVcapability of an arrester. Additionally, rated voltage isused as a reference parameter. Note! TOV capability of PEXLIM arresters exceedsthe IEC requirements.

Continuous operating voltageIt is the max. permissible rms power frequencyvoltage that may be applied continuously between thearrester terminals. This voltage is defined in differentways (verified by different test procedures) in IEC andANSI/IEEE.

IEC (Uc)IEC gives the manufacturer the freedom to decide Uc.The value is verified in the operating duty test. Anyuneven voltage distribution in the arrester shall beaccounted for.

ANSI/IEEE (MCOV)ANSI/IEEE lists the maximum continuous operatingvoltage (MCOV) for all arrester ratings used in a table.The value is used in all tests specified by ANSI/IEEE .MCOV is less stringent as regards uneven voltagedistribution in an arrester.

Temporary overvoltages (TOV)Temporary overvoltages, as differentiated from surgeovervoltages, are oscillatory power frequency over-voltages of relatively long duration (from a few cyclesup to hours).The most common form of TOV occurs on the healthyphases of a system during an earth-fault involving oneor more phases. Other sources of TOV are load-rejection, energisation of unloaded lines etc.The TOV capability of PEXLIM Q arresters is indi-cated with/without prior energy stress. Refer to Publ.SESWG/A 2227en.

Residual voltage Discharge voltage (Ures )This is the peak value of the voltage that appearsbetween the terminals of an arrester during thepassage of discharge current through it. Uresdepends on both the magnitude and the waveformof the discharge current. Complete V/I curves areshown in Publ. SESWG/A 2227en.

Energy capabilityStandards do not explicitly define energy capabilityof an arrester. The only measure specified is theLine Discharge Class in IEC. Often, this may not beenough information to compare different manu-facturers and, therefore, ABB presents energy capa-bility also in kJ/kV (Ur ). This is done in 3 different ways:

Two impulses as per IEC clause 7.5.5.This is the energy that the arrester is subjected to inthe switching surge operating duty test (cl. 7.5.5.)while remaining thermally stable thereafter againstthe specified TOV and Uc . For PEXLIM Q arrestersthis value is 7.4 kJ/kV(Ur )

Routine test energyThis is the total energy which each individual block issubjected to in our production tests. For PEXLIM Qblocks, this value is not less than 5.6 kJ/kV(Ur).

Single-impulse energyThis is the max. permissible energy which an arrestermay be subjected to in one single impulse of 4 msduration and remain thermally stable against specifiedTOV and Uc . For PEXLIM Q arresters this value is4.5 kJ/kV(Ur). Note! Corresponding values based on Uc are obtainedby multiplying the above figures by the ratio Ur /Uc .

Short-circuit capabilityThis is the ability of an arrester, in the event of anoverload due to any reason, to conduct the resultingsystem short-circuit current without violent shatteringwhich may damage nearby equipment or injurepersonnel.After such an operation, the arrester must bereplaced. The system short-circuit current may behigh or low depending on the system impedance andearthing conditions. Hence the short-circuit capabilityis verified at different current levels. Note! PEXLIM arresters are tested with short-circuitinitiated by overvoltage in accordance with proposedamendment 2, IEC 60099-4, which is more stringentfor polymer-housed arresters, than present standards.


Design

ABB employs a unique patented designto enclose the ZnO blocks of eachelectrical unit (often called a �module�)under pre-compression in a cage formedof glass-fibre reinforced loops. Thisresults in high mechanical strength.

Silicone rubber is directly moulded on to the cage,sealing the active elements completely. Since there isno air inside the module, internal partial discharge isavoided. Gaskets are not required to maintain goodsealing. The design also results in excellent short-circuit capability.Silicone rubber is highly hydrophobic and resistantto UV radiation and has been shown to be the bestinsulation (compared to both porcelain and other poly-mers) based on world-wide independent laboratoryand field tests. ABB uses special fillers to enhancethese properties as well as giving it high pollutionresistance, tracking resistance and fire-extinguishingfeatures.Each arrester unit is pre-assembled at our factoryand should not be disassembled for any reason. As inthe case of porcelain-housed arresters, multi-unitarresters are assembled at site.

Short-circuit capabilityAt overload conditions leading to failure of an arrester,the internal pressure is quickly and safely reduced bypuncture of housing, thanks to the special open-cagedesign. Hence, special devices are not required forrelief of internal pressure and personnel/equipmentsafety is excellent.The inherent design of the arresters with siliconepolymer housing directly moulded on the active parts,as in PEXLIM arresters, tends to limit the firstasymmetrical peak current to less than 2.5 times thesymmetrical test current despite the test circuit beingadjusted for this value for a short-circuit test. This isspecially the case for longer units. The matter is underconsideration in IEC to permit a lower asymmetry factorfor such cases since in a real failure situation thisperformance of the polymer-housed arrester would bebeneficial.

Pollution level Creepage in mm/kV (Um)

Light (L) 16Medium (M) 20Heavy (H) 25Very Heavy (V) 31

External insulationExternal insulation withstand strength of an apparatusis the max. value of the voltage (of a given waveshape) that can be applied without external flashover.Surge arresters, whose primary function is to limitovervoltages in other equipment, will obviously be thebest protected of all.The voltage across an arrester can never be higherthan that given by its protective characteristics. Onlythe need for an additional safety factor, includingcorrection factor for installation altitude, can justifytechnically a higher external insulation strength.All PEXLIM surge arresters fully comply with therequirements stated in IEC and ANSI standards foraltitudes up to 1 000 m above sea level.

Field distributionThe module lengths are chosen to ensure low anduniform radial stress on the arrester even under highlypolluted conditions. For longer arresters, axial fielduniformity is ensured by grading rings.

Mechanical strengthPresent arrester standards lack suitable definitions andtests regarding the mechanical strength of polymericarresters. Hence, to guide the user, ABB has intro-duced the term �Max. usable bending moment�, definedas under. Max. usable bending moment is the max.bending moment (in Nm) at the base of a surge arresterresulting from the vector sum of all possible forces (e.g.due to line conductor load, the normal wind load andthe arrester weight) in the direction perpendicular to thearrester axis. This value should be compared with themaximum continuous bending moment of porcelainarresters (typically 40% of the minimum fracturemoment as per DIN standards).

Due to its flexible construction, there may be a visibledeflection at the line-end of the arrester undermaximum loading. Such deflection is limited by ourchoice of the usable bending moment figure as givenin this catalogue which ensures that the electrical and/or mechanical functions of the arrester are notimpaired in any way.

Classification as per IECDifferent levels of pollution are classified in IEC 60815with minimum creepage distances being specified foreach class as under:

HousingCreepage distance and pollution performanceThe creepage distance is the distance measuredalong the insulators external profile and may beinterpreted as a measure of the arrester performancein polluted environments with respect to risk ofexternal flashover.The shed profile comprises alternate long-short shedsin accordance with IEC 60815.


Selection of arrester

Type designationThe type designation gives detailed information of thearrester and its application. See example below.As standard, the arresters are meant for upright verticalerection. For under-hung erection, when desired, thetype designation is completed by letter �H� after systemvoltage (Um). For other angular erection, please informus at order.

PEXLIM Q192 - XV245 HBlock type Q

corresponds to linedischarge class 3

Pollution level according to IEC 60815.Neutral-ground arresters have an �N� here

Arrester family Ur

Internalcode Um

For under-hung arresters,letter �H� to be added here

For non-standard arresters, the type designation will haveadditional letters.The most important parameters for proper selection are:- The max. system voltage (Um) at the arrester location- Amplitude and duration of TOV; e.g. based on system grounding and short-circuit duration- Energy requirements- Desired margin of protection or LIPL and SIPL- Creepage and/or pollution level

Selection is simplified by reference to ABB Selectionguide, SESWG/A 2300E and/or by intimating details asper enquiry form SESWG/A 2406E (available at yournearest ABB office) to us.

Ordering dataWe recommend that the same form, SESWG/A 2406E,be filled-in and sent to us with your order, to ensureinclusion of all important parameters and commercialterms and conditions. The information must include atleast:- Quantity and type designation of arrester- Rated voltage of arrester- Type of line terminal- Type of earth terminal- Type of insulating base (if required)- Quantity and type of surge counter- Routine test report, if desired

Ordering example

3 PEXLIM Q192-XV245HUnder-hung erectionRated voltage 192 kVLine terminal type LB 910 330-AEarth terminal type LB 910 408-D

3 Insulating base LB 910 120-D

3 Surge counter EXCOUNT-A

MountingThe low weight and the high personnel safety permitsthe arrester to be mounted at any angle provided thatmaximum usable bending moment is not exceeded.Thus, they are ideal for use in locations where space islimited (e.g. in cubicles, on transformer tanks andbreaker poles etc.) and for protection of transmissionlines. For inverted mounting and when the angle ofinstallation exceeds 45° under the horizontal plane, weneed to be informed at order to ensure a correct design.

Installation and maintenanceArresters are very easy to install and do not need anyspecial tools or instruments. Installation instructionsare packed in each case.A properly chosen and installed arrester is practicallymaintenance-free for its lifetime. If, for any reasonhowever, monitoring of the arrester condition in serviceis desired, the same is best carried out by a specialportable instrument, ABB type LCM, which measuresthe internal resistive leakage current after filtering allother current components. ABB does not recommendthe use of a simple mA-meters (usually built-in in surgecounters) as such instrument cannot differentiatebetween the internal and external leakage current aswell as other components and harmonics.Note also that operation of arrester without gradingrings, where supplied, may lead to failure andinvalidates our guarantees.

Example of erection

Vertical uprightPEXLIM Q192-XV245

Under-hung (inverted)PEXLIM Q192-XV245H


Max.systemvoltage,UmkVrms

52

72

100

123

145

Ratedvoltage,Ur

kVrms

243)

303)

363)

424851

546072

546066

727578

8184

757884

9096

9096102

108120129

132138144150

108120132

138144150

162168

as perIEC,UckVrms

19.224.028.8

343841

434858

434853

586062

6567

596165

6974

727778

787878

78787878

869292

929292

9292

as perANSI/IEEE,MCOVkVrms

19.424.429.0

34.039.041.3

43.048.058.0

43.048.053.4

58.060.763.1

65.668.0

60.763.168.0

72.077.0

72.077.082.6

84.098.0104

106111115121

86.098.0106

111115121

131131

1 skVrms

27.634.541.4

48.355.258.6

62.169.082.8

62.169.075.9

82.886.289.7

93.196.6

86.289.796.6

103110

103110117

124138148

151158165172

124138151

158165172

186193

10 skVrms

26.433.039.6

46.252.856.1

59.466.079.2

59.466.072.6

79.282.585.8

89.192.4

82.585.892.4

99.0105

99.0105112

118132141

145151158165

118132145

151158165

178184

1 kAkVcrest

47.659.571.4

83.395.1102

107119143

107119131

143149155

161167

149155167

179191

179191203

214238256

262274286298

214238262

274286298

321333

2 kAkVcrest

49.561.874.2

86.598.9105

112124149

112124136

149155161

167173

155161173

186198

186198210

223248266

272285297309

223248272

285297309

334346

0.5 kAkVcrest

46.157.669.2

80.792.298.0

104116139

104116127

139144150

156162

144150162

173185

173185196

208231248

254265277288

208231254

265277288

312323

5 kAkVcrest

53.667.080.4

93.8108114

121134161

121134148

161168175

181188

168175188

201215

201215228

242268288

295309322335

242268295

309322335

362376

10 kAkVcrest

56.470.584.6

98.7113120

127141170

127141156

170177184

191198

177184198

212226

212226240

254282304

311325339353

254282311

325339353

381395

20 kAkVcrest

62.177.693.1

109125132

140156187

140156171

187194202

210218

194202218

233249

233249264

280311334

342357373388

280311342

357373388

419435

40 kAkVcrest

69.486.8105

122139148

157174209

157174191

209217226

235243

217226243

261278

261278295

313347373

382399417434

313347382

399417434

469486

TOVcapability 2)

Max. continuousoperating voltage 1)

30/60 µs

Max. residual voltage (Ures) with current wave

8/20 µs

More detailed information on the TOV capability and the protective characteristics are given in Publ. SESWG/A 2236en.

1) The continuous operating voltages Uc (as per IEC and MCOV (as per ANSI) differ only due to deviations in type test procedures. Uc has to be considered only when the actual system voltage is higher than the tabulated. Any arrester with Uc higher than or equal to the actual system voltage divided by √3 can be selected.

2) With prior duty equal to the maximum single impulse energy stress.

3) Applicable only for neutral-ground arresters.

Arresters with lower rated voltages may be available on request for special applications.

Guaranteed protective data


More detailed information on the TOV capability and the protective characteristics are given in Publ. SESWG/A 2236en.

1) The continuous operating voltages Uc (as per IEC and MCOV (as per ANSI) differ only due to deviations in type test procedures. Uc has to be considered only when the actual system voltage is higher than the tabulated. Any arrester with Uc higher than or equal to the actual system voltage divided by √3 can be selected.

2) With prior duty equal to the maximum single impulse energy stress.

Arresters with higher rated voltages may be available on request for special applications.

Max.systemvoltage,UmkVrms

170

245

300

362

420

Ratedvoltage,Ur

kVrms

132144150

162168192

180192198

210216219

222228

216240258

264276

258264276288

330336342360

as perIEC,UckVrms

106108108

108108108

144154156

156156156

156156

173191191

191191

206211221230

264267267267

as perANSI/IEEE,MCOVkVrms

106115121

131131152

144154160

170175177

179180

175191209

212220

209212221230

267272277291

1 skVrms

151165172

186193220

207220227

241248251

255262

248276296

303317

296303317331

379386393414

10 skVrms

145158165

178184211

198211217

231237240

244250

237264283

290303

283290303316

363369376396

1 kAkVcrest

262286298

321333381

357381393

417428434

440452

428476512

523547

512523547571

654666678714

2 kAkVcrest

272297309

334346396

371396408

433445451

458470

445495532

544569

532544569593

680692705742

0.5 kAkVcrest

254277288

312323369

346369381

404415421

427438

415461496

507530

496507530553

634646657692

5 kAkVcrest

295322335

362376429

402429443

469483489

496510

483536576

590617

576590617643

737751764804

10 kAkVcrest

311339353

381395452

423452466

494508515

522536

508564607

621649

607621649677

776790804846

20 kAkVcrest

342373388

419435497

466497512

543559567

574590

559621667

683714

667683714745

854869885931

40 kAkVcrest

382417434

469486555

521555573

608625634

642660

625694746

764798

746764798833

9549729891046

TOVcapability 2)

Max. continuousoperating voltage 1)

30/60 µs

Max. residual voltage (Ures) with current wave

8/20 µs


Dimensions

System voltage range (Um) 145 - 170 kV

System voltage (Um) 245 - 420 kV

RatedvoltagekV

108-120108-120132-144

150162-168132-144

150132144-192

SystemvoltagekV

145145145

145145170

170170170

Amaxmm

110014171397

148617411417

150617611761

Creepagedistancemm

362545404540

498858954540

498858955895

Masskg

374644

475546

495857

Fig

443

334

444

RatedvoltagekV

192180-210216-228

180-198210-228216-276

216240-258264-276

258-264276-288258-288330-360

SystemvoltagekV

245245245

245245300

300300300

362362362420

Amaxmm

176121052105

261726172617

287228722872

2872287235333216

Creepagedistancemm

589572507250

861386138613

952095209520

952095201179010875

Masskg

607169

868386

1009994

10099125116

Fig

665

777

777

7777

Bmm

600600600

600600600

800800600

800800800800

Cmm

800800-

900800900

14001200900

1400120016001600

RatedvoltagekV

024030-036042-072

054-072075-084075-096

090-120090-096108-144

150

SystemvoltagekV

024036052

072072100

123123123

123

Amaxmm

481481736

73610801080

108014171397

1486

Creepagedistancemm

136313632270

227036253625

362545404540

4988

Masskg

161624

243535

354644

47

System voltage range (Um) 24 - 123kV

Bmm

400400-

--400

400600400

Cmm

160160-

--160

160300160

Fig

111

111

121

1

Dmm

400400300

500400500

700600500

70060010001000

Fig 1Single unit arresters






Fig 7Two-unit arresters

XVXVXV

XVXVXV

XHXVXV

XV

XHXVXV

XVXVXH

XHXVXV

XMXHXH

XVXVXH

XVXVXV

XHXHXVXH


Neutral ground arresters

System voltage range 52 - 170 kVThe neutral-ground arresters should preferably be of thesame type as the phase-ground arresters.For fault clearing times less than 30 minutes, select arated voltage greater than Um/√3 from the table below.For longer fault clearing times, or for resonant earthed

systems with long radial lines, special considerationsmust be taken with regards to rated voltage, creepagedistance, etc. In such cases please contact ABB.The electrical characteristics of the neutral-groundarresters are identical to the standard phase-groundarresters having the same rated voltage, see table�guaranteed protective data� on page 6.

RatedvoltageUrkVrms

024030-036042-048054

060066072

084090-096108-120132

Max systemvoltageUmkVrms

052052072072

100100123

145145170170

Amaxmm

481481736736

736736736

1080108010801397

Creepagedistancemm

1363136322702270

227022702270

3625362536254540

Masskg

16162424

242424

35353544

XNXNXNXN

XNXNXN

XNXNXNXN


Quality control and testing

ABB Switchgear is certified by BVQI tofulfil the requirements of ISO 9001.

Type testsType (design) tests have been performed in accord-anceboth with IEC 60099-4 and proposed amendment 2 aswell as ANSI/IEEE C62.11. Test reports are available onrequest.

Routine testsRoutine tests are performed on ZnO blocks as well ason assembled arrester units and accessories. The mostimportant type tests data is verified on all batches ofZnO blocks, thus verifying catalogue data.

Tests on ZnO blocksEnergy withstand test on all blocksThe blocks pass three energy test cycles with coolingin-between. In each cycle the injected energy is far inexcess of the single impulse energy capability. Blockswith insufficient energy capability are automaticallyrejected.

Classification of all blocksThe blocks are classified at 1 mA (d.c.) and 10 kA (8/20 µs)and the residual voltages are printed on each blocktogether with a batch identification. Finally all blocks arevisually inspected.

Accelerated life tests on samplesPower losses after 1000 hours calculated from a testwith shorter duration (approx. 300 hours) at an elevatedtemperature of 115°C at 1.05 times Uc shall not exceedthe losses at start of the test. Batches in whichunapproved blocks appear are rejected.

Impulse current tests on samplesBlocks are subjected to high current impulses (4/10 µs)and long duration current impulses (2 500 µs) ofamplitudes verifying catalogue data.

Other sample testsIn addition to the above, low current characteristics,protection characteristics and capacitance are checkedon samples.

Tests on assembled mechanical unitsRoutine tests on units fulfil the demands of both IEC60099-4 and ANSI/IEEE C62.11. Each arrester unit hasa serial number as per IEC 60099-4

Guaranteed residual voltageThe residual voltage at 10 kA, 8/20 µs impulse currentof each unit is calculated as the sum of the residualvoltages for all blocks connected in series in the unit.The residual voltage of the complete arrester is the sumof the residual voltages for its units.

Power frequency reference voltageIs measured at reference current (of 2 mA crestresistive) on each unit.

Internal coronaIs checked on each unit at 0.9 times Ur. A steadyinternal corona level less than 5 pC is required in apass/no-pass test.

Grading currentIs measured at Ucon each unit.

Power lossesAre measured at Uc on each unit verifying that thethermal performance is in compliance with performedtype tests.

Test reportsRoutine test reports are filed and are available onrequest. The reports include reference voltages, powerlosses and residual voltages.

Tests on accessoriesSurge counters, EXCOUNTAll counters are routine-tested in a pass/no-pass testbefore leaving the factory.

Environmental standardsProduction and disposal of our surge arresters isenvironmentally friendly and fulfils the stipulations ofISO 14001.Further information is available on request.


Accessories

Surge Counter EXCOUNTEXCOUNT is designed for service in connection withgapless ZnO-arresters of any make. EXCOUNT isdesigned to withstand mechanical shocks andvibrations as well as operation in severe climateconditions.EXCOUNT records the total number of impulsessignificant for the arrester, i.e. impulses representingnegligible energy are not counted, see figure below.

Brief performance data

Short-circuit proof 80 kAAmbient temperature -55 °C up to +70 °C

Detailed information is available in catalogueSESWG/A 2280en

Typical criteria for stepping/not stepping for pulses ofdifferent duration.

Impulse duration. Front time/half-value time in µs

Current amplitude A

Earth terminalsLine terminals Drilling plans

LB 910 330-AAl and stainless steel

LB 910 408-DStainless steel

LB 910 404-BStainless steel

LB 910 329-AAl

LB 910 332-AStainless steel

LB 910 120-CAl

Weight 5.0 kg

LB 910 139-DAl

Weight 2.2 kg

Without insulating base With insulating basefor vertical upright erection

o

With insulating basefor under-hung (inverted) erection

LB 910 120-DAl

Weight 5.0 kg

o


ABB Switchgear is working to continuous improve the products. Thereforewe reserve the right to change design, dimensions and data without prior notice

ABB Switchgear ABSurge Arrester DivisionDept. SESWG/AFS-771 80 LUDVIKA, SwedenTel +46 240 78 20 00Fax +46 240 179 83E-mail: [email protected]: http://www.abb.se/swg

Shipping data

UrRatedvoltagekV

042-072054-072075-084

075-096090-120090-096

108-144150108-120

108-120132-144150

162-168132-144150

132144-192192

180-210216-228180-198

210-228216-276216

240-258264-276258-264

276-288258-288330-360

UmSystemvoltagekV

XV052XV072XV072

XV100XH123XV123

XV123XV123XH145

XV145XV145XV145

XV145XH170XH170

XV170XV170XM245

XH245XH245XV245

XV245XH300XV300

XV300XV300XH362

XH362XV362XH420

Grosskg

444460

606076

747662

767477

907679

939295

106104116

112121135

134129135

134160150

Volumem3

0.510.510.69

0.690.690.85

0.850.850.69

0.850.850.85

1.060.850.85

1.061.061.06

1.061.060.85

0.851.061.06

1.061.061.06

1.061.061.06

Grosskg

9292130

130130168

162168136

168162171

200168177

209206215

248242288

276293335

332317335

332410380

Volumem3

0.510.510.69

0.690.690.85

0.850.850.69

0.850.850.85

1.060.850.85

1.061.061.06

1.061.061.51

1.511.871.87

1.871.871.87

1.871.871.87

Grosskg

164164235

235235306

294306247

306294312

365306324

383377395

461449

Volumem3

0.90.91.22

1.221.221.51

1.511.511.22

1.511.511.51

1.871.511.51

1.871.871.87

1.871.87

Three SixOne

Number of arresters per case

Publ. SESWG/A 2226enEdition 2, 1999-08

Pro

dukt

ion:

SW

G/B

FS

MF

Rep

ro: T

win

repr

o Tr

yck:

Hen

ning

sons

400

0ex

pararrayos pexlim+q x

Documents

usable bending moment

nominal discharge current

continuous operating voltages

current wave 30 60

uneven voltage distribution

prior duty equal

actual system voltage

line discharge class