High Voltage Surge Arresters Buyer s Guide Section PEXLIM Q

Transcription

1 High Voltage Surge Arresters Buyer s Guide Section PEXLIM Q

2 Zinc Oxide Surge Arrester PEXLIM Q Protection of switchgear, transformers and other equipment in high systems against atmospheric and switching overs. in areas with high lightning intensity and high energy requirements. where grounding or shielding conditions are poor or incomplete. Superior where low weight, reduced clearances, flexible mounting, non-fragility and additional personnel safety is required. Major component in PEXLINK TM concept for transmission line protection. Brief performance data System s (U m ) Rated s (U r ) Nominal discharge current (IEC) Classifying current (ANSI/IEEE) Discharge current withstand strength: High current 4/10 µs Low current 2000 µs kv kv 10 ka peak 10 ka peak 100 ka peak 1000 A peak Other data can be ordered on request. Please contact your local sales representative. Energy capability: Line discharge class (IEC) [2 impulses, (IEC Cl ) Fulfils/exceeds requirements of ANSI transmissionline discharge test for 170 kv systems. Class kj/kv (U r )] Short-circuit/Pressure relief capability 50 ka sym External insulation Fulfils/exceeds standards Mechanical strength: Specified long-term load (SLL) Specified short-term load (SSL) Nm Nm Service conditions: Ambient temperature Design altitude Frequency -50 C to +45 C max m Hz ABB Surge Arresters Buyer s Guide Technical information 41

3 Guaranteed protective data kv Max. system Rated Max. continuous TOV capability 2) Max. residual with current wave operating 1) as per IEC as per ANSI/IEEE 30/60 µs 8/20 µs U m U r U c MCOV 1 s 10 s 0.5 ka 1 ka 2 ka 5 ka 10 ka 20 ka 40 ka 24 3) ) ) The continuous operating s Uc (as per IEC) and MCOV (as per ANSI) differ only due to deviations in type test procedures. U c has to be considered only when the actual system is higher than the tabulated. Any arrester with U c higher than or equal to the actual system divided by 3 can be selected. 2) With prior duty equal to the maximum single-impulse energy stress (4.5 kj/kv (U r )). 3) Arresters for system s 36 kv or below can be supplied, on request, when the order also includes arresters for higher system s. Arresters with lower or higher rated s may be available on request for special applications. 42 Technical information ABB Surge Arresters Buyer s Guide

4 Guaranteed protective data kv Max. system Rated Max. continuous TOV capability 2) Max. residual with current wave operating 1) as per IEC as per ANSI/IEEE 30/60 µs 8/20 µs U m U r U c MCOV 1 s 10 s 0.5 ka 1 ka 2 ka 5 ka 10 ka 20 ka 40 ka ) The continuous operating s U c (as per IEC) and MCOV (as per ANSI) differ only due to deviations in type test procedures. U c has to be considered only when the actual system is higher than the tabulated. Any arrester with U c higher than or equal to the actual system divided by 3 can be selected. 2) With prior duty equal to the maximum single-impulse energy stress (4.5 kj/kv (U r )). Arresters with lower or higher rated s may be available on request for special applications. ABB Surge Arresters Buyer s Guide Technical information 43

5 Technical data for housings Max. system Rated Housing Creepage distance External insulation * ) Dimensions U m U r 1.2/50 µs dry 50 Hz wet (60s) 60 Hz wet (10s) 250/2500 µs wet Mass A max B C D Fig. mm kg mm mm mm mm XV XV XV XV XV XV XH XV XV XH XV XV XV XH XH XV XM XH XV XV XH XV XH XV XH Neutral-ground arresters XN XN XN XN XN XN XN XN XN * ) Sum of withstand s for empty units of arrester. 44 Technical information ABB Surge Arresters Buyer s Guide

6 Technical data for housings Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 ABB Surge Arresters Buyer s Guide Technical information 45

7 Accessories Line terminals Earth terminals Drilling plans 1HSA L Aluminium 1HSA A Stainless steel NOTE! Alternative drilling plan 3 slotted holes (120 º), n14 at R Without insulating base Aluminium 1HSA M Aluminium flag with other items in stainless steel 1HSA B Stainless steel 1HSA N Aluminium Insulating base 1HSA A Epoxy resin M12 bolts for connection to structure are not supplied by ABB. Required threaded grip length is mm. 1HSA P Stainless steel 46 Technical information ABB Surge Arresters Buyer s Guide

8 Shipping data Rated Housing Number of arresters per crate One Three Six U r Volume Gross Volume Gross Volume Gross m 3 kg 24 XV XV XV XV XV XV XH XV XV XV XH XV XV XV XV XH XH XV XV XM XH XH XV XV XH XV XV XV XH XH XV XH m 3 kg m 3 kg Neutral-ground arresters XN XN XN XN XN XN XN XN , 144 XN Each crate contains a certain number of arrester units and accessories for assembly and erection. A packing list is attached externally on each crate. Each separate crate is numbered and the numbers of all crates and their contents are listed in the shipping specification. ABB reserves the right to pack arresters in the most effective/economic combination. Alternate or non-standard crates may involve additional charges. The table above is to be seen as an approximation and specific data for deliveries may differ from the values given. ABB Surge Arresters Buyer s Guide Technical information 47

9 For more information please contact: ABB AB High Voltage Products Surge Arresters SE Ludvika, Sweden Phone: +46 (0) Fax: +46 (0) Copyright 2014 ABB All rights reserved NOTE: ABB AB works continuously with product improvements. We therefore reserve the right to change designs, dimensions and data without prior notice. Section of 1HSM en High Voltage Surge Arresters Buyer s Guide, Edition 10,