New Catalogue L.a (en)

Published on December 2016 | Categories: Documents | Downloads: 54 | Comments: 0 | Views: 323
of 16
Download PDF   Embed   Report

Comments

Content

Surge Arresters

Surge Arresters
Business Edge

Business Edge

The Switchgear Works of Crompton Greaves is located on a 1,32,540 sq.mtrs. plot in Nashik on the Mumbai Agra National Highway and is demarcated in four main divisions: EHV SF6 Gas Switchgear, EHV Instrument Transformer, Medium Voltage Vacuum Switchgear and Surge Arresters. Operations commenced in 1980 with the manufacture of Medium Voltage Switchgear, which was relocated from Kanjur Mumbai Works. A specialised Business Unit spearheads the export thrust for in-house products as well as carefully out-sourced synergestic products for supply to Trade, Industry, OEMs and Power Utilities. Our regional establishments throughout India have factory-trained personnel to provide prompt after sales service, supporting our service personnel located at the factory.
CG House, Mumbai

Global Leadership
Today, Crompton Greaves is well on its way to becoming a Global Leader in the field of Transmission & Distribution. In May 2005, CROMPTON GREAVES acquired the entire Pauwels Group, a leading transformer manufacturer in Europe. With this acquisition, it has become one of the top 10 transformer manufacturers in the world. To further augment its position in the Transmission & Distribution sector, CROMPTON GREAVES has recently acquired two Hungarian companies. Ganz Transelektro, engaged in manufacture of EHV Transformers, Gas Insulated Switchgear, rotating machines and Ganz Transverticum, involved in the project business & specializing in high-end engineering & substation capabilities. With the latest acquisition, the turnover of CROMPTON GREAVES has crossed the US$ 2 billion mark; making it the first truly Indian multinational. CROMPTON GREAVES has manufacturing facilities on all five continents spanning - India, Belgium, Ireland, USA, Canada, Indonesia, Hungary. International business today accounts for over 50% of the sales. Crompton Greaves already possesses the distinction of producing world-class, quality products that are globally competitive. The acquisition has given CROMPTON GREAVES access to new technologies – 765kV transformers, GIS upto 300kV. The integration process now underway will strengthen the technological capability of CROMPTON GREAVES and its subsidiaries and allow the CROMPTON GREAVES group to emerge as leader at the cutting edge of Transmission & Distribution business on a global scale.

Surge Arresters
Introduction
Components in any power system face in service, overvoltages that arise either due to natural lightning or inevitable switching operations. Surge arresters are used to protect power system installations and equipment against Lightning Overvoltages, Switching Surges etc. Generally arresters are connected across the equipment to be protected, typically between phase and earth for three phase installations. CG metal oxide Surge Arresters consist of active part, which is a series of highly nonlinear ceramic resistors made essentially of Zinc Oxide. Fine Zinc Oxide crystals are surrounded by other metal oxides (additives).

Introduction

Surge Arrester Assembly

LINE TERMINAL PR.REL.PLATE

FLANGE COIL SPRING HOUSING ZnO ELEMENT FRP RUBE FRP ROD

Special Features
I

Unique doughnut construction of ZnO elements offer high energy capability, provide uniform density and temperature distribution Shatter proof performance Simple, robust construction of Arresters Extremely high non-linearity of ZnO elements Positive locking of Zinc Oxide elements

AL.SPACER SILICA GEL SPACER TUBE FLANGE

I I I I I

PR.REL.PLATE

Low power loss resulting in enhanced performance at elevated temperatures Controlled environment assembly line Ultra stable elements resulting in enhanced overvoltage protection capacity Available in Brown & ANSI-Grey Porcelains Optional Spares :

BASE PLATE

I I

Surge Counter, Insulating Base & Support Structure.

I

All CG Arresters in this Catalog are designed in line with the requirements of ANSI-IEEE Standard C62.11 & IEC 60099-4. Note : CG Ltd. reserves the right to change Design and specifications in this catalogue without notice, due to continuous product improvements.

Surge Arresters

Basics of CG Surge Arresters
Explanation of Terms

Breakdown of Grain Boundary

Bi O 2 3 Barrier ZnO

Grain Res. Barrier Cap. Barrier Res.

• Voltage Rating : The voltage rating of an arrester is that voltage which can be applied for a limited time after the arrester has absorbed a large amount of energy as established in the operating duty tests. The rated voltage is used as a reference parameter for the specification of operating characteristics. • Maximum Continuous Operating Voltage (MCOV) :

Fig. 1 Grain Structure of ZnO Block

The MCOV is the maximum permissible rms value of power frequency voltage that may be applied continuously between the terminals of the arrester. • Temporary Overvoltage Capability : An arrester must be selected with a high enough voltage rating to withstand temporary overvoltages which might be caused by various occurrences on the system. The most common event causing a temporary overvoltage is a single line to ground fault. For an effectively grounded system such faults will normally be cleared in less than one second. Therefore an overvoltage capability based on a duration of one second is usually recommended. Also, the below table shows Temporary Overvoltage Capability for a time range of 0.1 to 1,000 seconds.

C B O

D

Voltage

A mA mA kA

Current

Fig. 2 Voltage / Current Characteristics
A = Bottom linear part (ohmic region) B = nee Point (breakdown point) C = Non-linear part (uptum region) D = Upper linear part (uptum region) E = Working point (continuously applied voltage)

Arrester Voltage Ratings
The chart below indicates the minimum MCOV customers need to specify for an arrester as a function of system voltage. The minimum recommended ratings for solidly grounded systems allow for a temporary voltage rise of at least 40% over a period of one second. Higher temporary overvoltages may require higher MCOV. Over Voltage Period (in sec) 0.1 1 10 100 1000 TOV per unit of MCOV with prior duty 1.42 1.37 1.3 1.24 1.17

Distribution

Class 2

Class 3

Class 4

Fig. 3 Various types of ZnO elements

Surge Arresters

Basics of CG Surge Arresters

• CG Arresters can be customized to meet virtually all the duty cycle voltage (Voltage Rating) & MCOV requirements.

Arrester Application Information
CG Arresters are designed to use at altitudes of 1000 M. Arresters can be customized to meet requirements for higher altitudes. CG arresters can be used at an average temperature of 40°C & where daily maximum temperature does not exceed 60 degC (140° F). The energy absorption capability – a two shot energy discharge within one minute, signifies the switching surge capability of these arresters. Wherever Grading Ring is a requirement, it is dispatched along with the Arresters. The base mounting & Terminal options can be customized to specific needs in addition to the options provided in this Catalog. Surge Counters to monitor Arrester discharges are available with built in milli-ammeters. Where Surge Counters is a requirement, it is supplied with suitable Insulating bases (IBs) for Arrester isolation from earth. All Arresters are identified with a unique serial number; multi-stack arresters have unit name-plates indicating position of the unit in the column. Arrester name-plates have information on the rated voltages, MCOV, Pressure relief current, serial number, etc.

Ultrasonic Cleaning Arrangement

Surge Arresters
SR. NO. 1 2 3 4 5 6 7 8 9 SYSTEM PARAMETERS System Voltage Maximum System Voltage System Earthing Basic Insulation levels (LI, SI) Line length, Energy involved Short Circuit level System over-voltages Pollution level Altitude

Surge Arrester Selection Process
SURGE ARRESTER PARAMETERS Rated Voltage Maximum Continuous Operating Voltage (MCOV) Rated Voltage Maximum Continuous Operating Voltage (MCOV) Rated Voltage Maximum Continuous Operating Voltage (MCOV) Residual Voltage (LI, SI) Line discharge class Pressure relief class Temporary over-voltages Creepage distance Arcing distance, Creepage

With available Surge Arrester parameters and from appropriate table, other ratings of Surge Arrester can be determined. The tables show typical requirements from customers. Surge Arrester with different parameters can also be supplied.

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Energy Handling Capability Continuous Leakage current at MCOV Hz kAp kJ / kV of Rating Resistive (Max.) Capacitive (Max.) Product Range
Unique Ref. No. ZYPD002 ZYPD003 ZYPD004 ZYPD005 ZYPD005 ZYPD007 ZYPD008 ZYPD010 ZYPD013 ZYPD015 ZYPD017 ZYPD019 ZYPD022 ZYPD024 ZYPD029 Rated Voltage 2.7 3 4.5 5.1 6 9 10 12 15 18 21 24 27 30 36 MCOV 2.3 2.55 3.6 4.2 5.1 7.65 8.4 10.2 12.7 15.3 17 19.5 22 24.4 29 Steep Impulse RV at 5kA (1/ 2microsec) 11.2 12.3 18.5 22.4 24.6 33.6 35.3 49.3 58.2 67.2 71.7 90 101 106 134

Distribution Class - Normal Duty –
IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Distribution class 48-62 Hz 75A, 1000 micro-sec 5 0.5 micro-amps micro-amps 150 600 2.7kV to 36 kV
Creepage distance mm 150 150 150 150 150 300 300 300 600 600 600 600 900 900 900 Overall Height (H) mm 230 230 230 230 230 300 300 300 425 425 425 425 530 530 530

Lightning Impulse RV (8/20 micro-sec) at 1.5kA 8.5 9.4 14.0 17.0 18.7 25.5 26.8 37.4 44.2 51.0 54.4 68.0 76.5 80.3 102.0 2.5kA 9.0 9.9 14.9 18.0 19.8 27.0 28.4 39.6 46.8 54.0 57.6 72.0 81.0 85.1 108.0 3.0kA 9.5 10.5 15.7 19.0 20.9 28.5 29.9 41.8 49.4 57.0 60.8 76.0 85.5 89.8 114.0 5kA 10.0 11.0 16.5 20.0 22.0 30.0 31.5 44.0 52.0 60.0 64.0 80.0 90.0 94.5 120.0 10kA 11.2 12.3 18.5 22.4 24.6 33.6 35.3 49.3 58.2 67.2 71.7 90 101 106 134

H

* Diagram not to scale

2.7kV – 36kV Dist. Class SA (Normal Duty)

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Energy Handling Capability Continuous Leakage current at MCOV Hz kAp kJ / kV of Rating Resistive (Max.) Capacitive (Max.) Product Range
Unique Ref. No. ZPR1002 ZPR1003 ZPR1004 ZPR1005 ZPR1005 ZPR1007 ZPR1008 ZPR1010 ZPR1013 ZPR1015 ZPR1017 ZPR1019 ZPR1022 ZPR1024 ZPR1029 Rated Voltage 2.7 3 4.5 5.1 6 9 10 12 15 18 21 24 27 30 36 MCOV 2.3 2.55 3.6 4.2 5.1 7.65 8.4 10.2 12.7 15.3 17 19.5 22 24.4 29 Steep Impulse RV at 10kA (1/ 2microsec) 11.2 12.3 18.5 21.3 24.6 33.6 35.8 43.1 53.8 64.4 68.9 86 97 108 129

(Distribution Class - Heavy Duty)
IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Distribution class 48-62 Hz 125A, 2000 micro-sec 10 1.0 micro-amps micro-amps 250 1000 2.7kV to 36 kV
Creepage distance mm 150 150 150 150 150 300 300 300 600 600 600 600 900 900 900 Overall Height (H) mm 230 230 230 230 230 300 300 300 425 425 425 425 530 530 530

Lightning Impulse RV (8/20 micro-sec) at 1.5kA 9.3 10.2 15.3 17.7 20.5 27.9 29.8 35.8 44.6 53.5 57.2 71.6 80.4 89.3 107 3.0kA 9.4 10.3 15.5 17.9 20.7 28.2 30.1 36.2 45.1 54.1 57.8 72.4 81.3 90.2 108 5kA 9.5 10.5 15.7 18.1 20.9 28.5 30.4 36.6 45.6 54.6 58.4 73.2 82.2 91.2 109 10kA 10 11 17 19 22 30 32 38.5 48 57.5 61.5 77 86.5 96 115 20kA 11.2 12.3 18.5 21.3 24.6 33.6 35.8 43.1 53.8 64.4 68.9 86 97 108 129

H

2.7kV – 36kV Dist. Class SA (Heavy Duty)

* Diagram not to scale

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Pressure Relief Class Energy Handling Capability Continuous Leakage current at MCOV Cantilever strength Product Range
Unique Ref. No. ZLA2002 ZLA2003 ZLA2005 ZLA2007 ZLA2008 ZLA2010 ZLA2013 ZLA2015 ZLA2017 ZLA2019 ZLA2022 ZLA2024 ZLA2029 ZLA2031 ZLA2036 ZLA2039 ZLA2042 ZLA2048 ZLA2057 ZLA2070 ZLA2076 ZLA2084 ZLA2098 ZLA2106 ZLA2115 Rated Voltage 2.7 3 6 9 10 12 15 18 21 24 27 30 36 39 45 48 54 60 72 90 96 108 120 132 144 MCOV 2.3 2.55 5.1 7.65 8.4 10.2 12.7 15.3 17 19.5 22 24.4 29 31.5 36.5 39 42 48 57 70 76 84 98 106 115

(Class - 2)
Hz kAp kArms kJ / kV of Rating Resistive (Max.) Kg-m IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Station class 48-62 Hz 2 10 A / 40 4.0 micro-amps – 400 & Capacitive (Max.) – micro-amps – 1500 325 upto 144kV 2.7kV to 144kV
Creepage Overall distance Height mm (H) mm 150 150 150 300 300 300 300 600 600 600 900 900 900 1050 1050 1050 1815 1815 1815 3075 3075 3625 3625 3625 3625 470 470 470 470 470 470 470 560 560 560 640 640 640 680 680 680 1160 1160 1160 1745 1745 1825 1825 1825 1825

Steep Impulse Switching Impulse Switching Impulse Lightning Impulse RV (8/20 micro-sec) at RV at10kA RV at 125A RV at 500A (1/ 2microsec) (30/60microsec) (30/60microsec) 1.5kA 3.0kA 5kA 10kA 20kA 8.7 9.2 18.3 27.4 30.4 36.5 45.7 54.8 63.9 71.4 80.3 90 107 114 132 141 154 171 205 257 271 283 314 342 376 5.9 6.2 12.4 18.6 20.7 24.8 31.0 37.2 43.4 48.4 54.5 60.8 72.7 77.6 90 96 104 116 139 174 184 192 213 232 255 6.1 6.4 12.7 19.1 21.2 25.4 31.8 38.2 44.5 49.7 55.9 62.4 74.6 79.7 92 98 107 119 143 179 189 197 219 238 262 6.9 7.2 14.3 21.5 23.9 28.7 35.9 43.0 50.2 56.1 63.1 70.4 84.1 89.9 104 111 121 134 161 202 213 242 268 292 321 7.2 7.5 15.0 22.5 25.0 30.0 37.5 45.0 52.5 58.6 66.0 73.6 88.0 94.0 108 116 126 140 169 211 223 253 281 305 336 7.4 7.8 15.5 23.2 25.8 31.0 38.7 46.5 54.2 60.6 68.1 76.0 90.8 97.0 112 119 131 145 174 218 230 261 290 315 347 7.8 8.2 16.3 24.5 27.2 32.6 40.8 48.9 57.1 63.7 71.7 80.0 95.6 102.1 118 126 137 153 183 229 242 275 305 332 365 8.7 9.2 18.3 27.4 30.4 36.5 45.7 54.8 63.9 71.4 80.3 89.7 107 114 132 141 154 171 205 257 271 308 342 372 409

* Diagram not to scale

Ø178
Ø178

Ø100
Ø178

Ø100

H

H

Ø178
Ø100

Ø100

H

90kV-144kV Class-2 SA

54kV-72kV Class-2 SA

2.7kV-48kV CL–2 SA

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Pressure Relief Class Energy Handling Capability Continuous Leakage current at MCOV Cantilever strength Product Range
Unique Ref. No. ZLA3002 ZLA3003 ZLA3005 ZLA3007 ZLA3008 ZLA3010 ZLA3013 ZLA3015 ZLA3017 ZLA3019 ZLA3022 ZLA3024 ZLA3029 ZLA3031 ZLA3036 ZLA3039 ZLA3042 ZLA3048 ZLA3057 ZLA3070 ZLA3076 ZLA3084 ZLA3098 ZLA3106 ZLA3115 ZLA3131 ZLA3140 ZLA3144 ZLA3152 ZLA3168 ZLA3180 ZLA3190 ZLA3209 ZLA3212 ZLA3220 ZLA3230 ZLA3235 ZLA3245 ZLA3292 ZLA3303 ZLA3318 ZLA3335 Rated Voltage 2.7 3 6 9 10 12 15 18 21 24 27 30 36 39 45 48 54 60 72 90 96 108 120 132 144 168 172 180 192 198 228 240 258 264 276 288 294 312 360 390 396 420

(Class - 3)
Hz kAp kArms kJ / kV of Rating Resistive (Max.) Kg-m IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Station class 48-62 Hz 3 10 A / 65 6.0 micro-amps — 400 & Capacitive (Max.) micro-amps – 1500 725 2.7kV to 420 kV
Creepage Overall distance Height mm (H) mm 150 150 150 300 300 300 300 600 600 600 900 900 900 1050 1050 1050 1815 1815 1815 3075 3075 3625 3625 3625 4495 4890 5000 5000 5440 6125 6125 7250 7250 7250 9065 9065 9065 9065 10500 10500 10500 13020 460 460 460 460 460 460 460 680 680 680 790 790 790 856 856 856 1090 1090 1090 1390 1390 1600 1600 1600 1600 2283 2625 2625 2535 2883 2883 3100 3100 3100 4075 4075 4075 4075 4700 4700 4700 4700

MCOV 2.30 2.55 5.1 7.65 8.4 10.2 12.7 15.3 17 19.5 22 24.4 29 31.5 36.5 39 42 48 57 70 76 84 98 106 115 131 140 144 152 168 180 190 209 212 220 230 235 245 292 303 318 335

Steep Impulse Switching Impulse Switching Impulse Lightning Impulse RV (8/20 micro-sec) at RV at10kA RV at 250A RV at 1kA (1/ 2microsec) (30/60microsec) (30/60microsec) 1.5kA 3.0kA 5kA 10kA 20kA 8.5 6.2 6.3 7.2 7.2 7.3 7.7 8.6 8.8 6.4 6.5 7.4 7.5 7.6 8.0 8.9 17.4 12.7 13.0 14.7 14.9 15.0 15.8 17.7 27.5 20.0 20.5 23.3 23.5 23.8 25.0 28.0 28.5 20.7 21.3 24.1 24.4 24.6 25.9 29.0 34.8 43.6 52.3 59.6 68.1 76.6 85.5 102 110 129 136 154 171 202 253 270 307 341 374 407 475 487 510 545 561 639 673 724 741 774 807 825 876 913 990 1056 1120 25.3 31.7 38.0 43.3 49.5 55.7 62.2 74.3 80.0 94 99 112 124 147 184 196 223 248 272 296 346 354 371 396 408 465 490 526 539 563 587 600 637 664 720 768 814 26.0 32.5 39.0 44.4 50.8 57.1 63.8 76.2 82.0 95.9 102 115 127 151 189 201 229 254 279 303 354 363 380 406 418 476 502 540 553 577 602 615 653 681 738 787 835 29.5 36.8 44.2 50.4 57.6 64.8 72.3 86.4 93.0 109 115 130 144 171 214 228 259 288 316 344 402 412 432 460 474 540 569 612 627 655 683 698 740 772 837 893 947 29.8 37.2 44.7 50.9 58.2 65.5 73.1 87.3 94.0 110 117 132 146 173 216 230 262 291 320 348 406 416 436 465 479 546 575 619 634 662 690 705 748 780 846 902 957 30.1 37.6 45.1 51.5 58.8 66.2 73.9 88.2 95.0 111 118 133 147 175 219 233 265 295 323 352 410 421 441 470 485 552 581 625 640 669 697 713 756 789 855 912 967 31.7 39.6 47.5 54.2 61.9 69.7 77.8 92.9 100 117 124 140 155 184 230 245 279 310 340 370 432 443 464 495 510 581 612 658 674 704 734 750 796 830 900 960 1018 35.5 44.4 53.2 60.7 69.4 78.0 87.1 104 112 131 139 157 174 206 258 274 312 347 381 414 484 496 520 554 571 651 685 737 755 788 822 840 892 930 1008 1015 1076

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Pressure Relief Class Energy Handling Capability Continuous Leakage current at MCOV cantilever strength Product Range
Unique Ref. No. ZLA4042 ZLA4048 ZLA4057 ZLA4070 ZLA4076 ZLA4084 ZLA4098 ZLA4106 ZLA4115 ZLA4131 ZLA4140 ZLA4144 ZLA4152 ZLA4168 ZLA4180 ZLA4190 ZLA4209 ZLA4212 ZLA4220 ZLA4230 ZLA4235 ZLA4245 ZLA4292 ZLA4303 ZLA4318 ZLA4335 Rated Voltage 54 60 72 90 96 108 120 132 144 168 172 180 192 198 228 240 258 264 276 288 294 312 360 390 396 420 MCOV 42 48 57 70 76 84 98 106 115 131 140 144 152 168 180 190 209 212 220 230 235 245 292 303 318 335

(Class - 4)
Hz kAp kArms kJ / kV of Rating Resistive (Max.) Kg-m IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Station class 48-62 Hz 4 20 A / 65kArms 8.0 micro-amps – 400 & Capacitive (Max.) micro-amps–1500 1000 54kV to 420 kV
Creepage Overall distance Height mm (H) mm 1815 1815 1815 3075 3075 3625 3625 3625 4495 4890 5000 5000 5440 6125 6125 7250 7250 7250 9065 9065 9065 9065 10500 10500 10500 13020 1368 1368 1368 1368 1368 1630 1630 1630 1630 2623 2623 2623 2623 2623 2623 2623 2888 2888 3153 3153 3153 4710 4710 4710 4710 4710

Steep Impulse Switching Impulse Switching Impulse Lightning Impulse RV (8/20 micro-sec) at RV at20kA RV at 500A RV at 2kA (1/ 2microsec) (30/60microsec) (30/60microsec) 1.5kA 3.0kA 10kA 20kA 40kA 177 196 228 284 314 352 392 432 470 549 562 588 627 647 713 781 840 859 897 937 956 1015 1171 1269 1281 1371 116 128 148 186 205 229 256 282 306 358 367 383 409 422 466 510 548 561 585 611 624 662 764 828 836 895 120 133 154 193 213 238 266 293 318 372 381 398 425 438 484 530 570 582 608 635 648 688 794 860 869 930 138 153 177 222 245 274 305 337 366 428 438 458 489 504 556 609 655 670 699 730 745 791 913 989 999 1069 140 155 180 225 249 279 310 342 372 435 445 466 496 512 565 619 666 681 711 742 757 804 928 1005 1015 1086 143 158 183 229 253 283 315 348 378 442 452 473 504 521 574 629 676 692 722 754 770 817 942 1021 1032 1104 150 166 193 241 266 298 332 366 398 465 476 498 531 548 605 662 712 728 760 794 810 860 992 1075 1086 1162 168 186 216 270 298 334 372 410 446 521 533 558 595 614 677 741 797 815 851 889 907 963 1111 1204 1216 1301

[ Class - 3 diagram ]

[ Class - 4 diagram ]

Ø1090 Ø280

Ø1090

Ø860 Ø280
Ø320

Ø860

Ø280
H
H

H

Ø320
H

Ø320

276kV-420kV Class-3 SA

168kV-264kV Class-3 SA

2.7kV-144kV Class-3 SA

276kV-420kV Class-4 SA

168kV-264kV Class-4 SA

54kV-144kV Class-4 SA

* Diagram not to scale

Surge Arresters

CG Polymeric Housed Surge Arresters
Design
The new generation of polymeric housed surge arresters incorporates a superior polymeric material that is recognised by the industry. Our station class polymeric surge arresters are designed & tested in accordance with the IEC-60099-4 standard. These polymeric surge arresters are suitable for both indoor & outdoor applications. These surge arresters are available in the range from 3kV - 96kV and have the following features:
I Excellent protection against the ingress of moisture I Improved cantilever strength I High fault current capability I Excellent protective characteristics I Light weight I High durability I Superior performance in the presence of contamination

These Polymeric-housed surge arresters are designed to protect against overvoltage due to lightning or switching. Station class arresters are used in large electric utility and industrial sub-stations to protect transformers and other substation equipments from lightning & switching surge-generated overvoltage. Our polymeric arresters provide both excellent protective characteristics and temporary over-voltage capability. The type ZPL2 station class arresters offer the benefits of polymer housings for system voltages up to 110kV. The ZPL2 arresters are approximately 1/5 the weight of the porcelain equivalent. Handling and installation are much easier as a result. The risk of damage to the housing is significantly reduced by comparison with porcelain.

Performance
Rated 3 to 96kV, 2.55kV to 81kV MCIV.2.4 to 110kV system line to line voltage. The ZPL2 arrester design is tested inaccordance with the latest industry standards for metal oxide arresters. The ZPL2 arresters consistently withstand the following minimum design tests.
I High Current-Short Duration: 100 kAp I Nominal discharge current (IEC): 10kA I Line Discharge Class (IEC): Class 2 I Minimum Energy Capability: 4.94 kJ / kV MCOV I Pressure Relief Capability: 65kA rms sym. I Working Cantilever strength: 60 kg-m

Surge Arresters
Reference Standard Arrester Type & Class Rated Frequency Line Discharge Class Nominal Discharge Current Pressure Relief Class Energy Handling Capability Continuous Leakage current at MCOV Cantilever strength Product Range
Unique Ref. No. ZPL2002 ZPL2003 ZPL2005 ZPL2007 ZPL2008 ZPL2010 ZPL2013 ZPL2015 ZPL2017 ZPL2019 ZPL2022 ZPL2024 ZPL2029 ZPL2031 ZPL2036 ZPL2039 ZPL2042 ZPL2048 ZPL2057 ZPL2070 ZPL2076 ZPL2084 ZPL2098 ZPL2106 ZPL2115 Rated Voltage 2.7 3 6 9 10 12 15 18 21 24 27 30 36 39 45 48 54 60 72 90 96 108 120 132 144 MCOV 2.3 2.55 5.1 7.65 8.4 10.2 12.7 15.3 17 19.5 22 24.4 29 31.5 36.5 39 42 48 57 70 76 84 98 106 115

(Class - 2 - Polymeric Surge Arrester)
Hz kAp kArms kJ / kV of Rating Resistive (Max.) Kg-m IEC 60099-4, ANSI IEEE Std C62.11, IS 3070 (Part-3) Gapless, Station class 48-62 Hz 2 10 A / 65 4.0 micro-amps – 400 & Capacitive (Max.) – micro-amps – 1500 325 upto 144kV 2.7kV to 144kV
Creepage Overall distance Height mm (H) mm 150 150 150 300 300 300 300 600 600 600 900 900 900 1050 1050 1050 1815 1815 1815 3075 3075 3625 3625 3625 3625 250 250 250 250 250 250 250 435 435 435 435 435 435 540 540 540 785 785 785 1155 1155 1825 1825 1825 1825

Steep Impulse Switching Impulse Switching Impulse Lightning Impulse RV (8/20 micro-sec) at RV at10kA RV at 125A RV at 500A (1/ 2microsec) (30/60microsec) (30/60microsec) 1.5kA 3.0kA 5kA 10kA 20kA 8.7 9.2 18.3 27.4 30.4 36.5 45.7 54.8 63.9 71.4 80.3 90 107 114 132 141 154 171 205 257 271 283 314 342 376 5.9 6.2 12.4 18.6 20.7 24.8 31.0 37.2 43.4 48.4 54.5 60.8 72.7 77.6 90 96 104 116 139 174 184 192 213 232 255 6.1 6.4 12.7 19.1 21.2 25.4 31.8 38.2 44.5 49.7 55.9 62.4 74.6 79.7 92 98 107 119 143 179 189 197 219 238 262 6.9 7.2 14.3 21.5 23.9 28.7 35.9 43.0 50.2 56.1 63.1 70.4 84.1 89.9 104 111 121 134 161 202 213 242 268 292 321 7.2 7.5 15.0 22.5 25.0 30.0 37.5 45.0 52.5 58.6 66.0 73.6 88.0 94.0 108 116 126 140 169 211 223 253 281 305 336 7.4 7.8 15.5 23.2 25.8 31.0 38.7 46.5 54.2 60.6 68.1 76.0 90.8 97.0 112 119 131 145 174 218 230 261 290 315 347 7.8 8.2 16.3 24.5 27.2 32.6 40.8 48.9 57.1 63.7 71.7 80.0 95.6 102.1 118 126 137 153 183 229 242 275 305 332 365 8.7 9.2 18.3 27.4 30.4 36.5 45.7 54.8 63.9 71.4 80.3 89.7 107 114 132 141 154 171 205 257 271 308 342 372 409

* Diagram not to scale

Ø144

Ø124

Ø144
H

H

H
Ø144
Ø124
90kV-144kV CL-2 POLY SA

Ø124

Ø144

Ø124

2.7kV-48kV CL-2 POLY SA

54-72kV CL-2 LA POLY SA

Surge Arresters

Diagram
Line Terminals General Arrangement
Ø30
Ø14.5 HOLE 4 NOS. 75 44.5/50

STUD TYPE LINE TERMINAL
M10×30 BOLT, 4 NOS.

NEMA / DIN LINE TERMINAL
55

100

55

CLAMP TYPE LINE TERMINAL

Base plate General Arrangement
BASE PLATE BASE INSULATOR (QTY. 3NOS./SA) WITH M12 STUD
320 250 BASE PLATE BASE INSULATOR (QTY. 4NOS./SA) WITH M12 STUD

55

44.5/50

80

BASE INSULATOR

BASE PLATE 320 250

345 Ø11 EARTHING HOLE, 2NOS.

Ø13 HOLE, 4 NOS. (FOR SA MOUNTING)

4 NOS. M16×120 BOLT (FOR SA BASE MOUNTING)

337

320

250

120° 120°

3 SLOTS OF 15MM WIDTH AT PCD 290 TO 320 (FOR SA MOUNTING)

32

320 250

32
Ø14 EARTHING HOLE. 2 NOS.

Ø11 EARTHING HOLE, 2 NOS.

3 MOUNTING HOLE AT PCD 290~320 FOR UP TO 120kV CLASS - 3 SA

4 MOUNTING HOLE 250×250mm FOR 192~216kV CLASS - 3 SA

4 MOUNTING HOLE 250×250mm FOR 390kV CLASS - 3 SA

Base plate General Arrangement for polymeric sa
BASE PLATE
BASE INSULATOR

BASE PLATE

3 SLOT OF 14 WIDTH AT PCD 222~254
450 340

400 275

Ø14 HOLES, 4NOS. FOR SA MOUNTING

4 NOS. M16×120 BOLT (FOR SA BASE MOUNTING)

120

32

120

°

°

Ø11 EARTHING HOLE, 2 NOS.

350 275

32

4 MOUNTING HOLE 275×275mm FOR 198kV CLASS - 4 SA

450

340

4 MOUNTING HOLE 340×340mm FOR 390kV CLASS - 4 SA

Ø275

* Diagram not to scale

Surge Arresters
ARRESTER

Line Terminals General Arrangement

190

210

BASE PLATE A BASE INSULATOR CONNECTING LINK
0 1

000022

Ø220

AC m A (CREST/Ö 2)

MOUNTING HOLE
CUSTOMER SUPPORT STRUCTURE SURGE COUNTER GROUNDING

Surge Monitor
Model No. SC 07-1

RAIN HOOD COVER

General Arrangement of Accessories

Surge Counter Details

ACCESSORIES :
Surge Arrestors may be supplied with following accessories on request :
I I I

Surge counter Insulating base (required in case surge counter is to be used) Cable conductor of specific length (required in case surge counter is to be used)

Note : Grading rings are supplied with CG Surge Arresters for CLASS 3 & 4 and for KV rating higher than or equal to 144 KV.

Test Lab

Impulse Generator - 2000kVp

* Diagram not to scale

Ø163

2 3 4 5

Vietnam Thailand Philippines

Japan

Taiwan

South Korea

Laos

Bangladesh

Nepal

Oman Benin Sudan Srilanka Nigeria Ethiopia Kenya Tanzania

Kyrgyzstan

Iraq Iran

Dubai

Myanmar

Malaysia

France Italy Greece Syria

Jordan Egypt

Iceland

Spain

Mauritania

Colombia Suriname

Ghana

Uruguay

Costa Rica

Canada

Panama

Ecuador

USA

Peru

Chile

Argentina

Brazil

Zambia Botswana South Africa

Mozambique Zimbabwe

Indonesia

Australia

G R O U P C O M PA N Y

Crompton Greaves Limited
Switchgear Complex A-3, MIDC, Ambad, Nashik - 422 010 India For exports - Email : [email protected] Tel : (+91) 253 2301661 to 674 • Fax : (+91) 253 2381247 Visit us at : www.cglonline.com For projects in India - Email : [email protected] Tel : (+91) 253 2382271 Regd. Office : 6th Floor, CG House, Dr. Annie Besant Road, Worli, Mumbai - 400 030, India.
Data subject to change Cat.No. SA-111 (8/10/0.5K) / Sangam

New Zealand

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close