COMPONENTS. Off-load Switch for Fixed Installation Title type SW

Transcription

1 COMPONENTS Off-load Switch for Fixed Installation Title type SW

2 General information The SW off-load switch is a complete range designed to cover all the applications to be met in DC traction power substations and other industrial applications. Its modular concept enables to build single pole or double pole disconnect switches, change-over switches or disconnect and earthing switches, for insulation voltages 3000 Vdc/ac or 4800 Vdc/ac and rated thermal currents from HV connection 000 to 8000 A. Installed inside cubicles, the SW switch can be operated either manually or electrically, and the customer can select among standard options safety interlockings made via key locks and/or electromagnets. The severe testing procedures applied for the type testing as well as for the serial testing make the SW switch a safe component with a unique design and a high level of reliability. Main plate Control system HV moving contact HV connection Auxiliary contacts Applications disconnect switch to connect / disconnect electric circuits (ex.: isolate / connect a third rail, catenary or transformerrectifier groups). change-over switch to select electric circuits. disconnect and earthing switch to connect / disconnect and earth electric circuits. Disconnect switch Change-over switch Disconnect and earthing switch Main features Rated operational voltage 800 Vdc and 3600 Vdc Conventional free-air thermal current from 000 A to 8000 A Safe with a high rated insulation voltage 3000 Vdc and 4800 Vdc Safe with the high voltage circuit separated from the low voltage circuit High rated short-time withstand current value or pole versions Optional locking of the main contacts available with either key and/or electromagnet High modularity to cover all necessary variants and options Silver-plated high voltage connections Self cleaning contacts High mechanical durability: cycles minimum Simple design with reduced number of parts Compact size Registered models (registered community design) Reference standards: EN503-/-3

3 High modularity The figures on the page show the basic configuration of each, and device (for a current of 000 A and a voltage of 800 Vdc). All these devices are also delivered in other configurations of current, voltage, operation and number of pole, thanks to a high industrialized modularity as shown below. Selection of rated voltage 800 V 8000 A Selection of rated thermal current 6300 A 3600 V 000 A 4000 A Selection of operation Manual mode Selection of pole number pole Electric mode pole Complete SW range Rated voltage U Ne [V] Conventional free air thermal current I th [A] Type pole pole pole pole pole pole pole () () can be used only for switching between equipotential circuits. 3

4 Data for product selection MAIN HIGH VOLTAGE CIRCUIT Symbol Unit SW...0 SW...40 SW...63 SW...80 Rated voltage - U Ne [Vdc] 800 or or and Rated insulation voltage - U Nm [V] 3000 or or and Rated service current I Ne [A] Conventional free air thermal current () I th [A] Peak and rated short-time withstand current () Î Ncw [ka] I Ncw [ka] t [s] Overvoltage category OV4 OV4 OV4 OV4 Rated power-frequency withstand voltage (3) - Pole - pole U a [kv rms ].0 (4) /. (5).0 (4) - Pole - earth U a [kv rms ] 9. (4) / 8.5 (5) 9. (4) Rated impulse withstand voltage (. / 50 µs) - Pole - pole U Ni [kv] 4.0 (4) / 48.0 (5) 4.0 (4) - Pole - earth U Ni [kv] 0.0 (4) / 40.0 (5) 0.0 (4) () At T amb = +40 C and tested with high voltage connection according to standard IEC/EN () For specific values of the earthing pole, refer to the figure and table of the page 5 (3) At 50 Hz and during minute (4) For U Ne = 800 Vdc (5) For U Ne = 3600 Vdc LOW VOLTAGE AUXILIARY CIRCUIT Control circuit (motor and optional electromagnet lock) Nominal voltage U n [Vdc] 4, 48, 60,, 5, 0 [Vac] 30 (50/60 Hz) Range of voltage [0.8 -.] Un Motor nominal closing/opening power (dc only) [W] 5 (0 for Vdc) (ac only) [W] 90 Mechanical closing time (6) t c [s] < 3 Mechanical opening time (6) t o [s] < 3 Electromagnet nominal power (dc and ac) [W] ~4 (6) For motorized version, at nominal control voltage = U n and T amb = +0 C Auxiliary contacts for main circuit and optional locks Type of contacts (refer to definition page ) Change-over Rated voltage [Vdc] 4 to 0 [Vac] 30 Conventional thermal current I th [A] Maximum breaking capacity at Vdc and t=5 ms [A] 0.75 Minimum let-through current at 4 Vdc (7) [ma] (silver contacts) (7) For dry and clean environment Low voltage interface Type of connection Direct for auxiliary contact Terminal block for motor Insulation Rated power-frequency withstand voltage (8) U a [kv rms ] (8) At 50 Hz and during minute OPERATING CONDITIONS Installation Indoors Altitude [m] <400 Working ambient temperature T amb [ C] -5 to +40 Humidity Class 5K Pollution degree PD4 Minimum mechanical durability N Cycles

5 Peak and rated short-time withstand current of the earthing pole Connection of earth cable on top Connection of earth cable on bottom The earth connection can be a cable or a flexible connection according to the current. The values of the peak and rated short-time withstand current are depending on the position of the earth connection: Symbol Unit connection of earth on top: I Ncwe [ka] Î Ncwe [ka] t [s] connection of earth on bottom: I Ncwe [ka] Î Ncwe [ka] t [s]

6 Information for product integration Main dimensions The DIN-ISO 768- coarse tolerances are applied to these dimensions. All dimensions are in mm. Note! Each SW can be equipped with manual or motorized (dc or ac) operation xm xm xm xm xm xm pole version configurations SW.8.0 SW.8.0 SW SW.8.40 SW.8.40 SW SW.8.63 SW.8.63 SW SW.8.40 SW.8.40 SW SW.8.80 SW.8.80 SW pole version configurations SW.8.0 SW.8.0 SW ,5 7,5 7, xm xm xm 7,5 7,5 7, SW.8.63 SW.8.63 SW ,5 7,5 7,5 SW

7 SW xm 6,5 95 7, pole version configurations pole version configurations

8 Operations DC electric mode A 4 4 A A A B A SWx pole SWx pole SWx pole SWx pole SWx pole SWx pole SWx pole pole pole pole pole pole pole B C B B B SW...36: 43 SW...8: (SW.8...) SW...36: 43 SW...8: (SW.8...) SW...36: 43 (SW.8...) SW...8: SW...36: 43 (SW.8...) SW...8: , ,4 44, C C C C Details of the high voltage connections The busbars or cables must be mechanically fixed outside the SW disconnector, and their contact surface must be parallel to the HV connections. For all devices SW...40 SW...63 SW xØ earthing pole M 44,4 R4 R R R 3,7 43,743,743,7 Top view Top view Removable handle 364 Side view Front view AC electric mode 364 Manual mode

9 Details of the earth connection on the base plate Ø 5 5 Fixation system The SW series switches are fixed vertically as shown here by means of M screws. The two or three fixing supports must be in a flat level to eachother. Examples of executions: - Weights MA [kg]: ± kg MO [kg]: ± kg pole pole * * MA [kg]: ± kg MO [kg]: ± kg pole pole * On request MA [kg]: ± kg MO [kg]: ± kg pole pole MA: manual operation MO: electric operation Details of the low voltage electrical interfaces and motor control. The wires for the auxiliary switches of the main circuit are connected directly onto them.. In electric version only, the wires for the motor control are connected into this terminal. 3. The wires for the auxiliary switch of optional locks are connected directly onto them

10 Control diagram for DC voltage motor As the motor needs to be dynamically braked, make the external circuit (II) as shown on this diagram. M I 3 4 J 3 4 K Auxiliary contacts of the main circuit 4 4 A B 4 C D E F A K K A II A + A + Un + I. Provided by Sécheron on SW. II. The control contactors K and K are provided by the customer. Both contactors must be mechanically interlocked to avoid them to be triggered at the same time; and each of them must have three NO contacts. Control diagram for AC voltage motor As the motor needs to be dynamically braked, make the external circuit (II) as shown on this diagram. M U V W J K I Auxiliary contacts of the main circuit A B C D E F U V W B K K O O K K A II K K A A A N Un~ L I. Provided by Sécheron on SW. II. The control contactors K, K, O and O are provided by the customer. Each of the K and K contactors must have two NO and one NC contacts.

11 Options (subject to additional costs) The SW series can be equipped with two different types of systems to lock the HV moving contact in open and/or in closed positions. Both types are detailed below as well as the different available configurations. Locking systems Description Key lock system The keys can be removed only in locked positions (opened and/or closed) of the moving contact. The key rotation drives a rod that mechanically locks the movement of the HV moving contact. A change-over auxiliary switch indicates the locking status of the lock system. Electromagnet lock system The electromagnet activates a rod that locks the HV moving contact in a defined position (open and/or closed). When the electromagnet is energized, the main contact is unlocked and can then be operated. A change-over auxiliary switch indicates the locking status of the lock system. Manual lock (for manual operated device) For units operated manually and where no key lock nor locking electromagnet is selected to lock the SW in closed position, Sécheron for safety reason will systematically deliver the device equipped with a manually operated system locking the SW in closed position. When locked, an auxiliary switch will be activated which signal must be integrated by the customer in the control scheme to have the manual locking and SW closed position be interlocked. Locked positions of the HV moving contact These symbols show in which position the HV moving contact is locked: Closed position of the HV moving contact Open position of the HV moving contact in open position in closed position in open and closed positions Positions of the lock systems on the SW The key and electromagnet locks systems are located in upper position or lower position on the main plate. If only one lock system is selected, it will be always located in the lower position. If a second lock system is selected, it will be located in the upper position. The configuration table hereunder shows also where the chosen lock system is located according to your choice of lockings systems. Configurations Upper position Lower position Designation code and positions of the locking systems, in function of the selected lock system and the selected locked position of the HV moving contact: Key lock system Electromagnet lock system Designation code in Lower position in Upper position in Lower position in Upper position standard option () A B () C D E F G H I () For this configuration combined with a manual operation of the SW, the device will be automatically delivered with a manual lock.

12 Designation code for ordering Designation code information Be sure to establish the designation code from the latest version of our brochure by downloading it from the website: Be careful to write down the 3 digits for the type designation code when placing your order. It could be, for technical reasons, that some configurations of variants and options indicated in the designation code cannot be combined. For other configurations not described in the brochure, please contact Sécheron. Designation code (options are subject to additional costs) - Order form Line Description Designation Standard Options Customer s choice Product type SW SW Application Disconnect switch S Change-over switch I Disconnect and earthing switch G Rated operational voltage () 800 Vdc Vdc 36 3 Conventional free-air thermal current (at T amb = +40 C) () 000 A A A A 80 4 Operation Manual MA Electric MO 5 Number of pole () pole pole 6 Control voltage for electric operation and optional electromagnet locks (Manual operation and without electromagnet lock) Not applicable Z 4 Vdc A 48 Vdc C 60/64 Vdc G Vdc E 5 Vdc R 0 Vdc J 30 Vac - 50 Hz T 30 Vac - 60 Hz U 7 Locking of HV moving contacts No () 0 One key lock locking the open position B One key lock locking both positions C One electromagnet locking both positions I For other selection, refer to the codification table on page... 8 Key codification (If no key lock selected in line 7) Not applicable Z (If key lock selected in line 7) No 0 (If key lock selected in line 7) Yes () Refer to page 3 for the possible configurations. () For this configuration combined with the selection of MA code line 4, the device will be automatically delivered with a manual lock. Example of customer s choice: SW I 8 40 MO J B Line: The bold characters of the designation code define the device type. Place and date: Name: Signature: SP880098BEN_E Sécheron SA Rue du Pré-Bouvier 5 4 Satigny - Geneva CH-Switzerland Tel: Fax: info@secheron.com This This document is is not not contractual and contains information corresponding to the level of technology at the date of printing. Sécheron reserves the the right to to modify and/or improve the the product, whose characteristics are are described in in these documents, as required by new technology at any time. It It is is the purchaser s responsibility to to inform himself, no no matter what what the the circumstances, of of the the product s maintenance conditions and requirements. Sécheron reserves all rights, especially those arising from our «General Delivery Conditions». Copyright Sécheron SA