Zinc Oxide Surge Arrester EXLIM Q-D, Chống Sét Van ABB, System ...

Zinc Oxide Surge Arrester EXLIM Q-D, Chống Sét Van ABB, System voltages (Us): 170 - 420 kV, Rated voltages (Ur): 132 - 420 kV

Chống sét van ABB EXLIM Q-D, chống sét Van ABB Hitachi, điện áp hệ thống (Us): 170 - 420 kV, Điện áp định mức (Ur): 132 - 420 kV

Surge Arrester porcelain-housed EXLIM, A high strength arrester family for line discharge class 2 to 5 and system voltage up to 800 kV

Zinc Oxide Surge Arrester EXLIM Q-D

Protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages.

− in areas with high lightning intensity and high energy requirements.

− where grounding or shielding conditions are poor or incomplete.

Other data can be ordered on request. Please contact your local sales representative.

https://www.hitachiabb-powergrids.com/offering/product-and-system/surge-arresters/high-voltage-surge-arresters/porcelain-housed-surge-arrester-exlim

Zinc Oxide Surge Arrester EXLIM Q-D

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Surge Arrester porcelain-housed EXLIM

A high strength arrester family for line discharge class 2 to 5 and system voltage up to 800 kV

EXLIM is family of porcelain-housed arresters that offer secure protection against overvoltages. They are installed the world over and in all climates. The wide reference base is testimony to their well respected performance. EXLIM arresters are type tested according to IEC 60099-4 and ANSI/IEEE C62.11. Also, complying with customer specific standards. Applicable to UHV (Ultra High Voltage) applications. 

Applications

• Protection of substation equipment 
• Transformers and reactors 
• Capacitor banks
• Requirement of high mechanical loads
• Cables
• HVDC protection

Why Hitachi ABB Power Grids?

• Minimal maintenance cost
• Customizable mechanical and electrical design
• Easy to install

Brief performance data

		R	Q-E	Q-D	P	T
System voltage	kV	52 - 170	52 - 245	170 - 420	52 - 550	245 - 800
Rated voltage	kV	42 - 168	42 - 228	132 - 420	42 - 444	180 - 624
Nominal discharge current	kApeak	10	10	10	10/15	10/15/20
Line discharge class	Class	2	3	3	4	4
Mechanical strength (SSL)	Nm	7 500	7 500	18 000	18 000	18 000

Get to know more

1. In-house production of ZnO blocks

The most important component for the surge arresters is the ZnO blocks, the varistors. Stacked in the center of the surge arrester, the varistor is the heart of the surge arrester. The varistor consist of a mix of zink oxide and other metallic powders that are blended and pressed into cylindrical blocks.

Hitachi ABB Power Grids manufactures ZnO varistors with full control of the process from the raw material to the finished electrically characterized varistors. A high degree of automation and a large number of quality tests at all stages, from raw material to ZnO blocks, approved for arrester manufacture, ensure that they fulfil their stated data.

Type tests has been performed for every size of ZnO varistor. Each varistor is verified by rigorous testing – over and above both IEC & ANSI standard requirements:

Tests on ZnO blocks

Energy withstand test on all blocks - The blocks pass three energy test cycles with cooling in-between. In each cycle, the injected energy is far in excess of the single impulse energy capability. Blocks with insufficient energy capability are automatically rejected.

Classification of all blocks

The blocks are classified at 1 mA (d.c.) and 10 kA (8/20 μs) and the residual voltages are printed on each block together with a batch identification. Finally all blocks are visually inspected.

Accelerated life tests on samples

Power losses after 1 000 hours calculated from a test with shorter duration (approximately 300 hours) at an elevated temperature of 115 °C at 1.05 times Uc shall not exceed the losses at start of the test. Batches in which unapproved blocks appear are rejected.

Impulse current tests on samples

Blocks are subjected to high current impulses (4/10 μs) and long duration current impulses (2 500 μs) of amplitudes verifying catalogue data.

Read more about the testing of ZnO blocks here (link to pdf-file)

Downloads for EXLIM

Available documents:Advanced search Documents in all languages Show all (31) Article (10)Brochure (3)Certificate (1)Data sheet (5)Instruction (1)Leaflet (1)Movie (2)Product guide (6)Technical description (2) High Voltage Surge Arresters - Buyer´s GuideSummary: 132 pages Buyer's Guide: ABB surge arresters are the primary protection against atmospheric and swit... (Show more)Product guide - English - 2019-06-03 - 30,36 MB PDF Surge Arresters Buyer´s Guide - Section EXLIM PSummary: No summary availableProduct guide - English - 2017-05-04 - 1,30 MB PDF Surge Arresters Buyer´s Guide - Section EXLIM Q-DSummary: No summary availableProduct guide - English - 2017-05-04 - 1,14 MB PDF Surge Arresters Buyer´s Guide - Section EXLIM Q-ESummary: No summary availableProduct guide - English - 2017-05-04 - 1,46 MB PDF Surge Arresters Buyer´s Guide - Section EXLIM RSummary: No summary availableProduct guide - English - 2017-05-04 - 1,02 MB PDF Surge Arresters Buyer´s Guide - Section EXLIM TSummary: No summary availableProduct guide - English - 2017-05-04 - 1,11 MB PDF Surge Arrester ZnO block testingSummary: No summary availableLeaflet - English - 2015-04-17 - 0,10 MB PDF Insulation withstand and clearances with EXLIM and PEXLIM surge arrestersSummary: This technical information discusses the different aspects of insulation withstand and provides guid... (Show more)Technical description - English - 2015-01-20 - 1,94 MB PDF Physical properties of zinc oxide varistorsSummary: No summary availableTechnical description - English - 2013-02-15 - 0,27 MB PDF Type EXLIM-P Surge Arresters, Maximum System Voltage 2.52 to 550 kVSummary: No summary availableBrochure - English - 2012-11-14 - 1,76 MB PDF Type EXLIM-Q Surge Arresters, Maximum System Voltage 2.52 to 245 kVSummary: No summary availableBrochure - English - 2012-11-14 - 1,52 MB PDF Type EXLIM-T Surge Arresters, Maximum System Voltage 245 to 800 kVSummary: No summary availableBrochure - English - 2012-11-14 - 1,49 MB PDF