Type HS PEXLIM-P Surge Arresters Maximum System Voltage 123 kv to 800 kv
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1 Type HS PEXLIM-P Surge Arresters Maximum System Voltage 123 kv to 800 kv
2 HS PEXLIM-P Metal Oxide Surge Arrester HS PEXLIM-P Surge Arresters are used for the protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages. For use when requirements of lightning intensity, energy capability are high and pollution level medium, high, and very high. Superior design where low weight, reduced clearances, flexible mounting, and shatter-proof housing is required. Application The HS PEXLIM-P Surge Arrester has been verified to meet Station Class requirements of IEEE C62.11 (IEEE Standard for Metal-Oxide Surge Arresters for AC Power Circuits and Line Discharge Class 4 requirements of IEC (IEC Standard for Metal-Oxide Surge Arresters without gaps for AC Systems. The HS PEXLIM-P Surge Arrester is designed to meet the following performance data: Performance data Maximum system voltages (Vm Duty cycle rated voltages (Vr Classifying current IEEE / ANSI IEC Discharge current withstand strength: High current 4/10 µs Low current 2000 µs kv rms kv rms 10 / 15 ka peak 20 ka peak 100 ka peak 1500 A peak Energy capability: 2 impulses, (IEC Cl kj/kv of MCOV Fulfills requirements of ANSI transmission-line discharge test for 362 kv systems Short-circuit / Pressure relief capability 80 ka rms sym Mechanical Strength 1 Permissible static service load (PSSL Maximum permissible dynamic service load (MPDSL 14,013 ft-lbs / 19 knm 20,650 ft-lbs / 28 knm Service conditions: Ambient temperature - 50 C to + 45 C Design altitude 6000 ft / 1830 m Frequency Hz (1 Higher altitudes designs available on request 2 HS PEXLIM-P Metal Oxide Surge Arresters
3 Benefits Fiber glass tube construction In special cases with very high demands for mechanical strength, the molded design may not provide the optimal solution particularly at system voltages at 245 kv and higher. Instead, what is required is a mix between the features of the standard EXLIM and the molded POLIM and PEXLIM designs. The HS (High Strength PEXLIM tube design provides this by offering comparable mechanical strength to EXLIM arresters, but with much less weigh. The seismic and pollution performance is in line with the molded POLIM and PEXLIM arresters and thus superior to conventional porcelain designs. Design highlights The basic concept is the replacement of the porcelain housing used with EXLIM arresters by a fiberglass tube housing onto which the silicone sheds are vulcanized. The metal flanges are integrated onto the tube prior to the vulcanizing process. The internal arrangement and the pressure-relief diviese are similar to those for EXLIM arresters. For satisfactory performance, it is important that the units are hermetically sealed for the lifetime of the arresters. The sealing arrangement at each end of the each unit consists of a prestressed stainless steel plate with a rubber gasket against the inner surface of the flanges and ensures effective sealing even if the gasket set due to aging. It also serves to fix the column of blocks in the longitudinal direction by means of heavy spring washers. Nameplates Standard (stainless steel To maintain the interior free of any humidity, the unit is evacuated after the sealing plates and gaskets are fitted and then filled with dry air at low dew point. Additionally, a small bag or a desiccant is placed in each unit during assembly. Sealing is verified for each unit after manufacturing during routine tests. Each arrester is furnished with 4-hole, line and ground terminals for electrical connections. 100% silicone based housing The silicone rubber housing features high tracking and arc resistance, excellent hydrophobic properties, and resistance to weathering, UV radiation and pollution. The incorporation of polymer material in an intermediate class arrester has resulted in many additional advantages. Among these are: Damage resistance Polymer construction reduces possible shipping and handling damage, as well as, damage due to vandalism. Safety Shatter-resistant construction provides greater protection for personnel, as well as, nearby equipment. Drilling plan Master nameplate (SSLT Unit nameplate (SSLT HS PEXLIM-P Metal Oxide Surge Arresters 3
4 Quick selection guide System Voltage Nominal Surge Arrester ANSI/IEEE Ratings Four-Wire Maximum V m (kv rms Three-Wire V n (kv rms Four-Wire V n (kv rms Three-Wire V r / V MCOV (kv rms Four-Wire Grounded V r / V MCOV (kv rms Grounded High Impedance V r / V MCOV (kv rms Medium Voltage / Y / Y / / / / / / Y / Y / / / Y / Y / / / Y / Y / / / Y / Y / / / Y / Y / / / / Y / Y / / / Y / Y / / / / Y / Y / / / Y / Y / / / High Voltage / / / / / / / / / / 335 Key V n Nominal System Voltage per NEMA C84.1 V m Maximum System Voltage per NEMA C84.1 V r Duty Cycle Rated Voltage per IEEE C62.11 MCOV Maximum Continuous Operating Voltage per IEEE C62.11 TOV SPL LPL FOW Temporary Overvoltage Switching Protective Level 500 A V r (kv rms 1000 A V r (kv rms 2000 A V r (kv rms Lightning Protective Level Front of Wave 4 HS PEXLIM-P Metal Oxide Surge Arresters
5 Guaranteed performance data Electrical characteristics Ratings (kv rms TOV (kv rms Maximum residual voltage with current wave, (kv peak Voltage MCOV with prior energy single impulse of 8.8 kj/ kv MCOV SPL (SIPL 30/60 µs LPL (LIPL 8/20 µs V r V MCOV 1 sec 10 sec 1.5 ka 3 ka 5 ka 10 ka 20 ka 40 ka 10 ka FOW 0.5 µs HS PEXLIM-P Metal Oxide Surge Arresters 5
6 Style numbers and technical data for housings Vertical mounting styles with standard creepage distance Surge Arrester V m (kv IEEE rating Vr / V MCOV (kv Style number Creepage distance inches (mm Strike distance inches (mm Bil 1.2/50 µs dry kv peak Weight (mass lbs (kg A inches (mm B inches (mm C inches (mm D inches (mm Fig / 70 P090TV123A ( ( ( / 73 P094TV123A ( ( ( / 76 P096TV123A ( ( ( / 82 P102TV123A ( ( ( / 88 P108TV123A ( ( ( / 92 P114TV123A ( ( ( / 98 P120TV123A ( ( ( / 104 P129TV123A ( ( ( / 106 P132TV123A ( ( ( / 111 P138TV123A ( ( ( / 115 P144TV123A ( ( ( / 121 P150TV123A ( ( ( / 88 P108TV145A ( ( ( / 98 P120TV145A ( ( ( / 106 P132TV145A ( ( ( / 111 P138TV145A ( ( ( / 115 P144TV145A ( ( ( / 121 P150TV145A ( ( ( / 131 P162TV145A ( ( ( / 134 P168TV145A ( ( ( / 106 P132TH170C ( ( ( ( ( / 115 P144TH170A ( ( ( / 121 P150TH170A ( ( ( / 131 P162TH170A ( ( ( / 134 P168TH170A ( ( ( / 140 P172TH170A ( ( ( / 106 P132TV170C ( ( ( ( ( / 115 P144TV170C ( ( ( ( ( / 121 P150TV170C ( ( ( ( ( / 131 P162TV170A ( ( ( / 134 P168TV170A ( ( ( / 140 P172TV170A ( ( ( / 144 P180TM245C ( ( ( ( ( / 152 P192TM245C ( ( ( ( ( / 144 P180TH245C ( ( ( ( ( / 152 P192TH245C ( ( ( ( ( / 160 P198TH245C ( ( ( ( ( / 170 P210TH245C ( ( ( ( ( / 173 P216TH245C ( ( ( ( ( / 179 P222TH245C ( ( ( ( ( / 180 P228TH245C ( ( ( ( ( / 144 P180TV245C ( ( ( ( ( / 152 P192TV245C ( ( ( ( ( / 160 P198TV245C ( ( ( ( ( / 170 P210TV245C ( ( ( ( ( / 173 P216TV245C ( ( ( ( ( / 179 P222TV245C ( ( ( ( ( / 180 P228TV245C ( ( ( ( ( HS PEXLIM-P Metal Oxide Surge Arresters
7 Vertical mounting styles with standard creepage distance Surge Arrester Vm (kv IEEE rating V r / V MCOV (kv Style number Creepage distance inches (mm Strike Distance inches (mm Bil 1.2/50 us dry kv peak Weight (Mass lbs (kg A inches (mm B inches (mm C inches (mm D inches (mm Fig / 209 P258TM362C ( ( ( ( ( / 209 P258TH362C ( ( ( ( ( ( / 212 P264TH362C ( ( ( ( ( ( / 220 P276TH362C ( ( ( ( ( ( / 230 P288TH362C ( ( ( ( ( ( / 235 P294TH362C ( ( ( ( ( ( / 243 P300TH362C ( ( ( ( ( ( / 245 P312TH362C ( ( ( ( ( ( / 209 P258TV362C ( ( ( ( ( ( / 212 P264TV362C ( ( ( ( ( ( / 220 P276TV362C ( ( ( ( ( ( / 230 P288TV362C ( ( ( ( ( ( / 235 P294TV362C ( ( ( ( ( ( / 243 P300TV362C ( ( ( ( ( ( / 245 P312TV362C ( ( ( ( ( ( / 267 P330TM420C ( ( ( ( ( ( / 272 P336TM420C ( ( ( ( ( ( / 277 P342TM420C ( ( ( ( ( ( / 288 P360TM420C ( ( ( ( ( ( / 267 P330TH420C ( ( ( ( ( ( / 272 P336TH420C ( ( ( ( ( ( / 277 P342TH420C ( ( ( ( ( ( / 288 P360TH420C ( ( ( ( ( ( / 267 P330TV420C ( ( ( ( ( ( / 272 P336TV420C ( ( ( ( ( ( / 277 P342TV420C ( ( ( ( ( ( / 288 P360TV420C ( ( ( ( ( ( / 318 P396TM550C ( ( ( ( ( ( / 335 P420TM550C ( ( ( ( ( ( / 353 P444TM550C ( ( ( ( ( ( / 318 P396TH550C ( ( ( ( ( ( / 335 P420TH550C ( ( ( ( ( ( / 353 P444TH550C ( ( ( ( ( ( / 318 P396TV550C ( ( ( ( ( ( / 335 P420TV550C ( ( ( ( ( ( / 353 P444TV550C ( ( ( ( ( ( HS PEXLIM-P Metal Oxide Surge Arresters 7
8 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 8 HS PEXLIM-P Metal Oxide Surge Arresters
9 Optional mountings Under-hung mounted styles Available for all ratings. To select, add UH to the end of the style number. Single housing under-hung (Example: 90 kv P090TV070CUH 3 Holes on 10 bolt circle mounting configuration styles Available for all rating To select, add P to the end of the style number. Single housing with adapter plate For 3 holes mounting on 10 bolt circle (Example: 90 kv (P090TV070CP HS PEXLIM-P Metal Oxide Surge Arresters 9
10 Standard hardware Line terminal Ground terminal Note: Line and ground terminals can accommodate copper or aluminum cable size Number 2 to 1000 MCM / 0.25 to 1.15 in / 6 to 29 mm diameter. Ground terminal can be located on any lug. 10 HS PEXLIM-P Metal Oxide Surge Arresters
11 Notes HS PEXLIM-P Metal Oxide Surge Arresters 11
12 Phase-to-ground clearance The phase-to-ground clearance in substations is usually based on the selected standard rated lightning and switching impulse withstand voltages. International standards, e.g. IEC , recommend minimum clearances. In general, the clearance between a grounded object and a surge arrester should be the same as the phase-to-ground clearance selected for other high voltage equipment in a substation. If it is not possible to use the normal phase-to-ground clearance in special applications of HS PEXLIM-P Surge Arresters, a smaller clearance may be chosen, considering the protective characteristics of the arrester. At system voltages 24 kv and below, the margin between the rated withstand voltage of the substation and the protective level of the surge arrester is large. Furthermore, distance effects by fast transients do not exist in the immediate vicinity of the surge arrester. The Adjusted Protective Level to be used in Figure 1, is defined as: - For lightning impulse: L pl x 1.15 x e H/ For switching impulse: S pl x 1.10 x e H/8150 H is the altitude in meters above sea level. L pl and S pl are the lightning and switching impulse protective levels for the selected HS PEXLIM-P Surge Arresters at the respective coordinating currents. The minimum clearance is determined either by lightning or switching impulse withstand, whichever renders a larger value. Thus, the recommended minimum phase-to-ground clearance for HS PEXLIM-P Surge Arresters, with regard to lightning and switching overvoltages are presented in Figure 1. These clearances are based on IEC , Table VI, and on the protective characteristics of the surge arrester. They include safety margins and altitude correction. (cm 200 Figure 1: Recommended minimum phase-to-ground clearance 150 Switching impulse Lightning impulse Adjusted Protective Level (kv 12 HS PEXLIM-P Metal Oxide Surge Arresters
13 Phase-to-phase clearance The phase-to-phase clearance for high voltage equipment in a substation is normally based on the selected standard rated lightning and switching impulse phase-to-phase withstand voltages. International standards, e.g. IEC recommend minimum phase-to-phase clearances. Note that the normal election of surge arrester protective levels does not directly protect the phase-to-phase insulation. In general, the clearance between surge arresters in adjacent phases should be the same as the phase-to-phase clearance selected for other high voltage equipment in the substation. If it is not possible to use the normal phase-to-phase clearance in a special application of HS PEXLIM-P Surge Arresters, the minimum clearance with regard to lightning overvoltages can be derived from Figure 2. The clearances shown in Figure 2 are based on the assumption that one phase is subjected to a lightning overvoltage, while the voltage on the adjacent phase is at the peak of the maximum power frequency operating voltage (opposite polarity. Obviously, these clearances will also cover the case of lightning overvoltages of the same polarity appearing simultaneously on two or three phases. The Adjusted Protective Level shown in Figure 2 is based on the lightning protective characteristics of the selected HS PEXLIM-P Surge Arresters. It includes safety margin and altitude correction factors and is defined as: L pl x 1.15 x e H/ V m x 2 / 3 - V m is the highest voltage for equipment according to IEC , which is usually equal to the highest system voltage. - L pl is the lightning impulse protective level for the selected HS PEXLIM-P Surge Arrester. The minimum phase-to-phase clearance for arresters with respect to switching overvoltages should always be based on the selected standard rated switching impulse phase-to-phase withstand voltage for the substation. Consequently, the clearances specified in IEC , Table VI, are valid for most applications of arresters. If a special application requires a minimized phase spacing, the favorable electrode configuration established by the grading rings on HS PEXLIM-P Surge Arresters may permit a further reduction of the phaseto-phase clearance. Figure 2: Recommended minimum phase-to-phase clearance for lightning overvoltages (cm Adjusted Protective Level (kv HS PEXLIM-P Metal Oxide Surge Arresters 13
14 Contact us ABB Inc. High Voltage Products - Surge Arresters 100 Distribution Circle Mount Pleasant, Pennsylvania 15666, USA Phone: +1 ( Fax: +1 ( Document Number: 22GNM / August 2013
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