CA01082E_Catalog 30

30 - ARRESTERS - PRODUCTS

High Strength Polymer Housed Surge Arresters – SVNH & SVNX

SVNH arresters are available for use on system voltages from 161 to 500 kV. These arresters offer a high strength alternative to the SVN arresters, without sacrificing protective capability or energy handling capability.

SVNH Electrical Characteristics

Maximum steep current

Maximum switching impulse residual voltage (kV)

Temporary overvoltage capability (kVrms)

Duty Cycle Rating (kV)

impulse residual voltage (kV)

Maximum lightning impulse residual voltage (kV)

Standard Arrester Catalog Number

MCOV (kV)

1s 10s

10kA

1.5kA 3kA 5kA 10kA 20kA 40kA 290 303 315 335 363 399

144 115 170 163

390

282

SVNH144GA115

168 131

194 186

445

321

331

345 358 382 413 455

SVNH168GA131

172 140 207 199

475

343

353 368 383 408 442 486

SVNH172GA140

180 144 213 204

489

353

363 379 394 420 454 500

SVNH180GA144

192 152 225 216

516

373

384 400 416 443 480 528

SVNH192GA152

240 190 281

269

645

466

480 500 520 554 599 660

SVNH240GA190

258 209 309 296

709

532

528 550 572 609 659 726

SVNH258GA209

264 212 313 301

719

540 535 558 580 618 669 736

SVNH264GA212

276 220 325 312

746

560 555 579 602 641

694 764

SVNH276GA220

288 230 340 326

780

586

581

605 629 671

726 799

SVNH288GA230

294 235 347 333

797

598

593 618 643 685 741

816

SVNH294GA235

312 245 362 347

831

624

618 645 670 714 773 851

SVNH312GA245

396 318 470 451

1192

810

803 837 870 927 1003 1105

SVNH396GA318

420 335 495 475

1255

853

846 881

916 977 1057 1164

SVNH420GA335

444 353 522 501

1323

899

891

929 966 1029 1114 1226

SVNH444GA353

The SVNX arresters are lightweight and are more resistant to fragmenting than traditional porcelain arresters. SVNX arresters are typically applied to system voltages higher than 500 kV where the energy requirements are higher than required for lower voltage systems.

SVNX Electrical Characteristics

Maximum steep current impulse residual voltage (kV)

Maximum switching

Temporary overvoltage capability (kVrms)

Duty Cycle Rating (kV)

Maximum lightning impulse residual voltage (kV)

Standard Arrester Catalog Number

impulse residual voltage (kV)

MCOV (kV)

1s

10s

20kA 2kA 1.5kA 3kA 5kA 10kA 20kA 40kA

396 318 462 442

1018

748 742 773 804 857 927 1021

SVNX396GA318AA

420 335 487 466

1072

788 781

815 847 903 977 1075

SVNX420GA335AA

444 353 513 491

1130

831

823 858 892 951

1029 1133

SVNX444GA353AA

588 470 541

517

1190

875 868 905 940 1002 1085 1194

SVNX588GA470AA

www.hubbell.com/hubbellpowersystems | 30-33