COMPONENTS Multi-functional Main AC Switch for rolling stock Type MACS
GENERAL INFORMATION MACS is a platform for Main AC Switch installed on electric rail vehicles running on AC networks. The AC vacuum Circuit-Breaker (AC VCB), which is the core function of the assembly, can be combined on the same base plate with other functions, such as Earthing Switch (), Surge Arrester (SA), Roof Switch (RS), offering the car builders the most modular platform, particularly well adapted to match their different applications and requirements. MACS can be mounted either vertically on the vehicle s roof of EMUs and Trains as well as inside traction container for locomotives. Another option is horizontally inside Sécheron s high voltage modular compact enclosure, AC MODBOX, to be installed on the roof- or under the frame of trains. APPLICATIONS Switching and protection of main and auxiliary electric circuits for locomotives, trains and EMUs running on 15 kvac or/and 25 kvac networks. MACS is a fully electrically operated circuit-breaker, designed to automatically open through spring release in case the low supply voltage is interrupted. This fail-safe concept is a key safety issue for rolling stock circuitbreakers, equipped with electric or electro-pneumatic operation. MACS platform with its small dimensions and light weight, completed with the compact and modular AC AC MODBOX, which integrates MACS in an aluminium housing with other high voltage functions such as current and voltage measurements, disconnect switch, fi lters, transient inductors, is the perfect solution for your rolling stock material running on 15 kvac or/and 25 kvac networks. MAIN FEATUR Compact multi-functional switch including: AC circuit-breaker, earthing switch (option) and surge arrester (option) on a single support of 940 mm x 430 mm. /// AC CIRCUIT-BREAKER Suitable for 15 kvac and/or 25 kvac networks Conventional free air thermal current: 1000 A Rated impulse withstand voltage (1.2 / 50 µs): Uimp = 125 kv or 170 kv External creepage distances > 1000 mm Vacuum interrupter Electric operation (closing and holding) Usable in various ranges of ambient temperature from -40 C to +70 C (-50 C to +70 C in option) Reference standards: IEC60077-1 /-2 /-4, IEC61373, EN50121-3-2, NF F16-101 /-102 /// EARTHING SWITCH Optional integrated earthing switch with manual or electric operation Safe manual operation guaranteed by optional interlocking keys Ice breaking capability (20 mm ice) /// SURGE ARRTER Optional integrated surge arrester r (to be defi ned by Sécheron upon customer s specifi cations) MAIN BENEFITS Indoor or outdoor installation Vertical or horizontal mounting High safety thanks to the automatic opening through spring release in case of interruption of supply voltage (no need of stored auxiliary electrical energy Compliant to LOC & PAS TSI (Technical specification for interoperability), 1302/2014/EU. High mecanical durability: > 250 000 operations Low height: 563 mm (for Uimp = 125 kv) above the roof and 140 mm below the roof Low weight: < 100 kg for the AC circuit-breaker MAIN BENEFITS 2 AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS
DATA FOR PRODUCT SELECTION MAIN HIGH VOLTAGE CIRCUIT AC circuit-breaker Symbol Unit 15 kv 25 kv Rated operational voltage Ue [VAC] 17 250 (1) 27 500 (1) Rated insulation voltage Ui [VAC] 27 500 (1) 27 500 (1) Rated operational current Ie [A] 1 000 1 000 Conventional free air thermal current (2) Ith [A] 1 000 1 000 Rated operational frequency f [Hz] 16.7 50, 60 Operational category C3 C3 Peak short-circuit making current IMC [ka] 63 50 Rated short-circuit breaking current / % value of the DC component [ka]/% 25/50 20/50 Peak and rated short-time withstand current (1 s) Îcw/Icw [ka]/[ka] 63/25 63/25 Short-time withstand currents 100 ms Icw 40 40 Rated power-frequency withstand voltage (50 Hz, 1 mn) U50 [kvrms] 75 75 Rated impulse withstand voltage (1.2/50 µs) Uimp [kv] 125 125/170 (1) For higher values, please contact Sécheron. (2) At Tamb = +40 C and tested with high voltage connections according to standard IEC/EN 60943. Earthing switch Peak and rated short-time withstand current Îcw/Icw/t [ka]/[ka]/[s] 63/25/1 63/25/1 LOW VOLTAGE AUXILIARY CIRCUIT Control circuit AC circuit-breaker Nominal voltage (power supply and control order) Un [Vdc] 24 to 110 Range of voltage (power supply and control order) [0.7-1.25] Un Maximum power (loading and holding) (3) (4) Pmax [W] 100 Nominal holding power (4) Ph [W] 35 Opening power [W] 0 Mechanical opening time (4) To [ms] 50 Mechanical closing time (4) Tc [ms] 65 Earthing switch (optional electric operation) Nominal voltage Un [Vdc] 24, 32, 36, 48/50, 72, 110 Operating power (4) [W] 125 Commutation time (4) [s] 3 (3) Loading time < 12 seconds. (4) At Un and Tamb = + 20 C. Auxiliary contacts Type of contacts (5) Potential free Rated voltage [VDC] 24 to 110 Conventional thermal current Ith [A] 10 Switching categories according to EN60947 (silver contacts) - AC-15 230 VAC 1.0 A - DC-13 110 VDC 0.5 A Minimum let-through current at 24 VDC (6) [ma] 10 (silver contacts) or 4 I < 10 (gold contacts) (5) Refer to page 6. (6) For a dry and clean environment. Low voltage interface Type of connection (7) - AC VCB with or without manual earthing switch 1 Connector: Harting 51 P - AC VCB with electric earthing switch 2 Connectors: Harting 51 P + Harting 24 DD (7) Refer to page 7 for mobile connector information. Insulation Rated power-frequency withstand voltage (50 Hz, 1 mn) U50 [kvrms] 1.5 OPERATING CONDITIONS Installation Indoor or outdoor Altitude [m] < 1400 Working ambient temperature Tamb [ C] -40 to +70 / -50 to +70 Humidity Class 5K2 Pollution degree PD4 Minimum mechanical durability N [Cycles] 250 000 AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS 3
PRODUCT INTEGRATION MAIN DIMENSIONS Dimensions without tolerances are indicative. All dimensions are in mm. The maximum allowed flatness deviation of the support frame is 0.5 mm. and earth connections: M12 screws. /// AC CIRCUIT-BREAKER 15 KVAC AND 25 KVAC Weight: Refer to the table below Uimp [kv] 125 170 A B 241 15 kv 25 kv 25 kv A (mm) 563 563 578 B (mm) 280 280 295 Weight (kg) 90 ±3 90 ±3 91 ±3 15 Frame level 420 420 64 101 32 430 385 150 105 114 142 320 880 388 >430 330 420 420 Roof opening and frame dimensions 385 22.5 406 65 110 320 940 6 x M12 >940 MOUNTING POSSIBILITI /// VERTICAL MOUNTING ON THE ROOF /// HORIZONTAL MOUNTING ON THE ROOF Underframe mounting or roof mounting in special high voltage box (Sécheron AC MODBOX ) 4 AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS
LOW VOLTAGE WIRING DIAGRAM (HARTING HAN MODULAR 51-PINS CONNECTOR) Legend of the schemes: Circuit-breaker main contacts Low voltage connector interface (male pin) Earthing switch main contacts a b 1a + 1b - switch PF Closing coil Earthing switch manual operation The bellow scheme represents MACS standard configuration (4a+4b switch PF), with optional additional auxiliary switches (4a+4b switch PF) and optional manual earthing switch (2a+2b switch PF). For electric earthing switch, please contact Sécheron. c1 c2 c7 c8 c3 B + B - O + O - R Control Unit MACS a7 a1 a9 a14 A B C D E a8 a2 a3 a12 a4 a13 a10 a15 a5 a16 a6 a17 b1 b7 b2 b8 b12 b3 F b13 b4 b14 b9 G b15 b10 b16 b5 H b17 b6 c9 c14 Ra Rb c4 c5 c6 c15 B : Battery power supply O : Control order R : Ready switch (MACS ready to close) : Earthing switch : Optional auxiliary contacts I c16 c10 J c11 c17 a b c AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS 5
OPTIONS (SUBJECT TO ADDITIONAL COSTS) AC CIRCUIT-BREAKER 15KVAC& 25 KVAC (Uimp=125 KV or 170 KV) AND EARTHING SWITCH Electric version (option) Manual version (standard) Weight: AC circuit-breaker + 13 kg (manual version) AC circuit-breaker + 20 kg (electric version) 167 142 540 (170 kv) 521 (125 kv) 142 50* 844 150* 220* 320 380* (*) Space needed to remove the cover and to operate the optional earthing switch. 122 47 Note : roof opening and frame dimensions for optional configuratopn are the same as for standard configuration. AC CIRCUIT-BREAKER AND SURGE ARRTER AC VCB SA2 Overhead line 15 or 25 kvac SA1, SA2: surge arresters AC VCB: AC vacuum circuit-breaker : earthing switch SA1 For a safe and effi cient protection of the vehicle s high voltage circuits against ligthning and switching overvoltages, Sécheron strongly recommends to use two surge arresters SA1 and SA2 in the high voltage circuit of the vehicle. In order to protect effi ciently the AC circuit-breaker, the distance between each surge arrester and the AC circuit-breaker must not exceed 15 meters. Should the customer want to integrate one surge arrester to the MACS, he can rely on Sécheron s specialists to defi ne the appropriate type. /// AC CIRCUIT-BREAKER AND SURGE ARRTER CONNECTIONS Surge arrester connections: M12 screws. 424 The connection between the ac circuit-breaker and the surge arrester is not represented on the drawing but is available in the scope of supply from Sécheron. Weight and Height of surge arresters depend on selected type 15 6 AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS
LV MOBILE CONNECTOR FOR AC CIRCUIT-BREAKER (SEPARATELY ORDERED ITEM) MACS configurations Auxilliary Switches Fixed connector Number of pin Size Size Device (1) Number Type (2) type Type 2.5 mm 2 1.5 mm 2 Mobile connectors Cable gland Cable entry Secheron s number AC circuit-breaker without earthing switch Case 1 AC VCB 4a + 4b PF 3 21 M25 SG325249R00101 SG325249R00201 Case 2 AC VCB 8a + 8b PF 3 37 M32 SG325249R00302 SG325249R00402 AC circuit-breaker with manual earthing switch Case 3 AC VCB + 4a + 4b 0a + 0b PF 3 21 M25 SG325249R00101 SG325249R00201 Case 4 AC VCB + 4a + 4b 2a + 2b PF 3 29 M32 SG325249R00303 SG325249R00403 Case 5 AC VCB + 8a + 8b 0a + 0b PF 3 37 M32 SG325249R00302 SG325249R00402 Case 6 AC VCB + 8a + 8b 2a + 2b PF 3 45 M32 SG325249R00304 SG325249R00404 AC circuit-breaker with electric earthing switch In this case the customer shall buy a second LV mobile connector for the electric earthing switch, additionally to the LV mobile connector of the AC circuit-breaker (case 1 or 2). Case 7 2a + 2b PF Harting HAN 24 DD Harting HAN 24 DD 2 12 M25 SG325249R00521 SG325249R00520 (1) AC VCB: AC Vacuum Circuit-Breaker : Earthing Switch. (2) PF: Potential Free. Notes: Harting Han Modular 51 pins connector is made of 3 Harting HAN DDD17 modules (each module supplied with 17 pins). The above references are given for mobile connectors considering that all the auxiliary contacts are wired, with an external wire diameter of 2.8 mm for a copper section of 2.5mm² and 2.3 mm for a copper section of 1.5 mm². If the conditions are different from these, the above references may change. In such case please inform Sécheron accordingly. AC CIRCUIT-BREAKER FOR ROLLING STOCK, TYPE MACS 7
DIGNATION CODE FOR ORDERING Be sure to establish the designation code from the latest version of our brochure by downloading it from the website: www.secheron.com Be careful to write down the complete alphanumerical designation code with 11 characters when placing your order For technical reasons some variants and options indicated in the designation code might not be combined For other confi gurations not described in the brochure, please contact Secheron. Example of customer s choice: M 4 A 1 A E A B Z Z 1 Line: 10 11 12 13 14 15 16 17 18 19 20 The bold characters of the designation code defi ne the device type. DIGNATION CODE Line Description Designation Standard Options Customer s choice 10 Product type MACS M M 11 Nominal voltage 15 kv or 25 kv (Uimp = 125 kv) 4 25 kv (Uimp = 170 kv) 3 12 Mechanical interface Standard base plate / vertical mounting A A 13 Earthing switch No 0 Yes (with manual operation) 1 Yes (with electric operation) 2 14 Surge arrester No 0 Yes - For surge arrester type and code, please contact Sécheron... 15 Control voltage 24 VDC A 32 VDC F 36 VDC B 48 VDC / 50 VDC C 72 VDC D 110 VDC E 16 Auxiliary contacts on the AC circuit-breaker 4a + 4b - (switch PF) - silver type A 4a + 4b - (switch PF) - gold type C 8a + 8b - (switch PF) - silver type B 8a + 8b - (switch PF) - gold type D 17 Auxiliary contacts on the earthing switch (No earthing switch) Not applicable Z None (1) 0 2a + 2b - (switch PF) - silver type H 2a + 2b - (switch PF) - gold type C 18 Interlocking keys for earthing switch (Electric operation or no earthing switch) Not applicable Z No key / lock 0 1 blue (master) + 1 yellow (slave) B 1 blue (master) + 2 yellow (slave) C 2 blue (master) + 1 yellow (slave) F 1 yellow (master) + 1 green (slave) H 1 yellow (master) + 2 green (slave) I 2 yellow (master) + 1 green (slave) L Key / locks delivered by customer S 19 Key and lock codification for each unit (Electric operation or no earthing switch) Not applicable Z No 0 Yes 1 20 Ambient temperature range -40 C to +70 C 1-50 C to +70 C 2 (1) For manual switch only. The low voltage connector must be ordered separately (refer to page 7). Place and date: Name: Signature: - LV mobile connector for the AC circuit-breaker with or without manual earthing switch: SG325249R00101 SG325249R00201 SG325249R00302 SG325249R00303 SG325249R00304 SG325249R00402 SG325249R00403 SG325249R00404 - Additional LV mobile connector for the electric earthing switch: SG325249R00521 SG325249R00520 This document is not contractual and contains information corresponding to the level of technology at the date of printing. Sécheron reserves the right to modify and/or improve the product, whose characteristics are described in these documents, as required by new technology at any time. It is the purchaser s responsibility to inform himself, no matter what the circumstances, of the product s maintenance conditions and requirements. Sécheron reserves all rights, especially those arising from our General Delivery Conditions. Copyright 2018 Sécheron SA Sécheron SA Rue du Pré-Bouvier 25 1242 Satigny - Geneva CH-Switzerland Tel: +41 22 739 41 11 Fax: +41 22 739 48 11 info@secheron.com www.secheron.com SG325101BEN_E03-03.18