>> WI. up to 52 kv. Gas-Insulated Switchgear with Vacuum Circuit-Breaker 1, 2 or 3-phase. System configuration AREVA T&D
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1 GAS-INSULATED SWITCHGEAR UNITS >> WI up to 52 Gas-Insulated Switchgear with Vacuum Circuit-Breaker 1, 2 or 3-phase System configuration AREVA T&D
2 Conditions of Delivery The General Conditions of Delivery as amended shall apply. Illustrations The illustrations are not binding.
3 >> Contents OVERVIEW Features 4 PRODUCT DESCRIPTION Technical description 5 Switching unit components 6 Modular design 7 - Single busbar up to Double busbar up to Single busbar up to 52, 0 BIL - Double busbar up to 52, 0 BIL Operator interfaces 9 Panel variants 10 Current / voltage transformers 12 Busbar modules 14 Modules 15 Interlocks 16 Gas compartment monitoring, 17 Gas-filled compartments, 1 STANDARDS Regulations, provisions and standards 19 Type designation 20 Applied nor 21 SELECTION TABLES / / / / 36 2 / / / 1 and 2 pole, for stationary railway traction power supply 50/60 Hz 34 RANGE OF PRODUCTS Single busbar panels 36 Double busbar panels 37 Disconnector panels 3 Bus section coupler / riser panels 3 Bus section coupler, bus coupler, metering panel 39 CABLE CONNECTIONS ECOLOGICAL CONSIDERATIONS 43 DESIGN DATA Space requirements, dimensions and weights 44 Busbar connection with fully insulated conductor bars 4 SHIPPING INFORMATION Delivery, packaging 50 3
4 >> Overview GAS-INSULATED SWITCHGEAR Single busbar up to 36 FEATURES The gas-insulated and metalenclosed switchgear WI has been designed for operation in power plants, transformer substations and industrial networks. The WI switchgear with vacuum circuit-breaker features maximum availability, optimum operator safety and clear design using SF 6 gas as insulating medium. The switchgear units are insensitive to environmental influences, such as humidity, dust and aggressive gases, and offer complete operator safety. Their clear design facilitates operation. Essential features Parts under medium voltage in SF 6 atmosphere - insensitive to air humidity, air pollution and foreign matter High degree of operator safety - complete metal enclosure for all system components under medium voltage Compact and clear design No mechanically moved parts in the busbar section No proble with SF 6 decomposition products - currents are switched in the vacuum interrupter chamber Inert insulating gas SF 6 protects the switchgear against fire Three-pole enclosure of the functional compartments - negligible sheath currents - small number of static and dynamic seals - few gas compartments, pressure relief devices and gas monitoring devices - easy access - moderate pressure increase in case of internal arcs - straightforward kinematics between drive and circuit-breaker or three-position switch Steel used as enclosure material - high pressure proofness - good screening effect against X rays Optimum security of operation - complete interlocking system - separate actuators for isolation and earthing - automatic circuit-breaker ON or OFF operation in case of earthing at the outgoing feeder High capacity current and voltage transformer Delivery of prefabricated switchgear panels to the construction site Fully shrouded terminals - pluggable, fully insulated cable end boxes Switchgear extension possible - on both sides - from single to double busbar system. 4
5 >> Product description TECHNICAL DESCRIPTION WI panels are suitable for configuring single or double busbar switchgear in conjunction with indoor installation. WI switchgear units are completely metal-enclosed. The busbar compartment which accommodates fixed parts only is segregated gas-tight from the flange-mounted switching unit. The switching unit comprises the three-position switch with isolating and earthing functions and the vacuum circuitbreaker; in case of double busbar syste, there are two three-position switches with isolating and earthing functions and the vacuum circuit-breaker. The busbar compartment and the switching unit feature three-pole enclosure. Single-pole enclosure is provided in the area of the toroidalcore current transformers which are located in an easily accessible position outside of the SF 6 atmosphere. The compact design results in a very clear switchgear arrangement with low space requirement; it has the advantage that a switching unit can be mounted or removed very quickly without the busbar requiring isolation from the power supply. The panels are equipped with a low-voltage cabinet for the required measuring and protection relays or the terminal strips. The high performance of the instrument transformers installed means that not only electronic but also conventional protection relays can be deployed. Thanks to its design, this panel series permits straightforward extension of an existing switchgear on both sides, and extension from single to double busbar models. Gas-insulated double busbar switchgear Rated voltage up to 36 ; rated peak withstand current up to ; rated current up to 00 A 5
6 COMPONENTS OF THE SWITCHING UNIT The circuit-breaker in question is a vacuum circuit-breaker. The switching unit has been equipped, for its isolating and earthing functions, with a three-position switch featuring the positions: Disconnector ON (CLOSE) Disconnector earthing switch OFF (TRIP) Earthing switch ON (CLOSE) Earthing The metal-enclosed WI series switchgear is equipped with a separate earthing line running along the length of the switchgear. Wiring Wiring is effected with flexible cables (HO7V-K) in the technically required cross-sections. Corrosion Protection If desired, the indoor panels and can be provided optionally with enhanced corrosion protection. To ensure optimum switchgear protection, the environmental installation conditions, such as wind-borne sand, aggressive dust (to be defined as salt dust, coke dust, cement dust etc.), vermin (termites), increased humidity levels, aggressive atmosphere (type of chemicals and their concentration to be defined) must be specified. Installation locations The switchgear has been designed for installation in closed electrical operating facilities. Connection of cables and bars The cables are connected by means of metal-enclosed connectors. Switchgear units equipped with multiple connection tanks enable connection of up to five 300 mm 2 cables or two 10 mm 2 cables per phase, depending on the insulation rating. Alternatively, fully insulated busbar syste or SF 6 -insulated conductor bars can be used. Low voltage cabinet The secondary devices for protection relay, control, measurement, billing metering and other syste are installed in the low-voltage cabinet. The low-voltage cabinet is separated systematically from the primary part, is shock-proof and arc-resistant. It is an independent, closed low-voltage compartment with mechanical and electrical interfaces to the vertical section (screw-fastened plug-and-socket connector). The clear separation between the rack and the low-voltage cabinet is a particular advantage for the company operating the switchgear. Retrofitting spare panels and conversion or replacement of complete low-voltage cabinets (e.g. due to process changes) at a later date is also straightforward. The panel remains completely enclosed even if the low-voltage cabinet is not attached. Optional inspection ports can be integrated in the torsion-resistant door of the low-voltage cabinet, the door also being able to accommodate measuring instruments, control elements and protection relays. 6
7 MODULAR DESIGN A B C D E Single busbar up to 36 A B C D E Tank with vacuum circuit-breaker and disconnector / earthing switch Drive with control panel and pressure gauge for gas monitoring Tank with busbar Supporting structure with cable connection area Low voltage cabinet A C1 B C2 D E Double busbar up to 36 A Tank with vacuum circuit-breaker and disconnector / earthing switch B Drive with control panel and pressure gauge for gas monitoring C1 Tank with busbar 1 C2 Tank with busbar 2 D Supporting structure with cable connection area E Low voltage cabinet 7
8 A C B D E Single busbar 52, 0 BIL A B C D E Tank with vacuum circuit-breaker and disconnector / earthing switch Drive with control panel and pressure gauge for gas monitoring Tank with busbar Supporting structure with cable connection area Low voltage cabinet C1 A C2 B D E Double busbar 52, 0 BILL A Tank with vacuum circuit-breaker and disconnector / earthing switch B Drive with control panel and pressure gauge for gas monitoring C1 Tank with busbar 1 C2 Tank with busbar 2 D Supporting structure with cable connection area E Low voltage cabinet
9 OPERATOR INTERFACES FOR (SINGLE BUS- BAR) AND (DOUBLE BUSBAR) 1 Button "circuit-breaker ON" 2 Button "circuit-breaker OFF" 3 Opening for charging the energy-storing device by means of a slide 4 Position indicator Energy-storing device (charged/released) 5 Circuit-breaker position indicator 6 Switch position indicator, disconnector (SS2) 7 Opening for operation of the disconnector (SS2) Interrogating lever, disconnector 9 Earthing switch position indicator 10 Opening for operation of the earthing switch 11 Interrogating lever earthing switch 12 Switch position indicator, disconnector (SS1) 13 Opening for operation of the disconnector (SS1) 14 Interrogating lever, disconnector 15 Mechanical lock-out with cylinder lock 16 Rating plate 17 Insulating gas monitoring device 1 Operations counter SS1: busbar 1 (corresponds to the lower busbar tank) SS2: busbar 2 (corresponds to the upper busbar tank) Operator interface, single busbar SS SS SS Operator interface, double busbar 9
10 SWITCHGEAR PANELS Single busbar Switchgear panel up to 36 Double busbar Switchgear panel up to Drive mechanism 2 Vacuum circuit-breaker 3 Low voltage cabinet 4 Cable end boxes 5 Current transformers 6 Busbar 7 Disconnector/ earthing switch Pressure relief device 1 Drive mechanism 2 Vacuum circuit-breaker 3 Low voltage cabinet 4 Cable end boxes 5 Current transformers 6 Busbar I 7 Disconnector/ earthing switch SSI Busbar II 9 Disconnector/ earthing switch SSII 10 Pressure relief device 10
11 SWITCHGEAR PANELS Single busbar Switchgear panel up to 52 Double busbar Switchgear panel up to Drive mechanism 2 Vacuum circuit-breaker 3 Low voltage cabinet 4 Cable end boxes 5 Current transformers 6 Busbar 7 Disconnector/ earthing switch Pressure relief device 1 Drive mechanism 2 Vacuum circuit-breaker 3 Low voltage cabinet 4 Cable end boxes 5 Current transformers 6 Busbar I 7 Disconnector/ earthing switch SSI Busbar II 9 Disconnector/ earthing switch SSII 10 Pressure relief device 11
12 CURRENT/VOLTAGE TRANSFORMERS Current transformers The current transformers are designed as toroidal-core transformers and are put onto the cable outgoing feeder areas with singlepole enclosure. The current transformers in line with the busbar consist of identical units. There, they are slipped onto the busbar areas which also feature singlepole enclosure. The capacity of the current transformers is designed in such a way that supply of conventional protective devices is also possible. A special current transformer arrangement is the "bus coupler panel within one panel width". In the double busbar top attachment tank, one core of max. mm height with an ID of 135 mm and an OD of 195 mm can be installed for each phase. The low voltage is led out via a max. 7-pole line which is SF 6 proof. Up to 3 transformers (3 cores) can be accommodated per phase and outgoing feeder. The transformers can also be exchanged subsequently. Three current transformers (3 cores) per phase can also be installed in line with the busbar, in order to measure its currents. Current transformer in line with the busbar Dimensions Measurement Safety Outgoing feeder: I dyn () Transformer ID 15 mm Ith (3sec) () Transformer OD 275 mm Class 0.5 M 5 10 P 10 P 10 Max. stacking height 160 mm Core rating (VA) (VA) up to 15 up to 5 up to 30 Primary rated current (A) 150 up to 00 In line with busbar: Secondary rated current (A) 1 or 5 Minimum ID 15 mm Maximum OD 0 mm Maximum stacking height for all cores incl. intermediate layer 2 mm 12
13 VOLTAGE TRANSFORMER The conventional solution for the inductive voltage transformer is a separate single-phase metalenclosed module which can be connected via cable connectors almost anywhere in the busbar area and on the outgoing feeder cable, and thus arranged in practically any location as required. - in the outgoing feeder area Another design comprises metal-enclosed inductive voltage transformers directly flangemounted to the outgoing feeder block, with the isolating / earthing device mounted upstream. An externally operated isolating feature prevents the voltage transformer from being endangered/put at risk during DC tests on the cable. on the busbar A separate metering panel with a set of inductive voltage transformers is provided to this effect. Taking account of the high priority of the busbar, a disconnector enables isolation of the transformer section. Both disconnector and transformer are located in separate compartments. Thus, any damage which might occur in the vicinity of the transformer does not affect the isolating area or the busbar. Performance characteristic Ratings: up to 50 VA Class: Voltage transformer on busbar Voltage transformer in outgoing feeder cable (connection via multi-tank) 1 Multi-tank 2 Test cable connector 13
14 BUSBAR MODULES Gas tank incl. installation parts Busbar Cover attachment on mounting flange with or without pressure relief. All five busbar compartments require one pressure relief device. If it is not possible to mount the device to the ends of the busbar tanks, e.g. if a tank for voltage transformer connection or a busbar earthing switch is located on the busbar end, or if the switchgear consists of over 10 panels, every fifth panel is equipped with a pressure relief device on the mounting flange Cover attachment on the stop flange of the left-hand and righthand end panel, with or without pressure relief, to connect metalenclosed voltage transformers with cable connection to the front. Gas lines incl. pressure gauges; preferably attached to the end panel. (Only once for each gas compartment.) Desiccant for 4 busbar tanks each, or for each gas compartment. (Cannot be mounted on switchgear panels equipped with pressure relief device.) Compensation element for busbar tanks. Required after 20 single busbar panels, and after 10 double busbar panels. Disconnector for bus sectionalizer Earthing switch for bus sectionalizer to the left and right of the disconnector Accessories (for overall system) SF 6 gas for on-site assembly of the busbar sections Special paint Corrosion protection in case of extreme environmental conditions Panel labeling according to specification Operating elements, operating crank for vacuum circuit-breaker, disconnector, earthing switch; for the busbar section s movable segregating cover. Star handle spanner Hex. spanner Castors Transport cover for the busbar tanks (can be returned) Jack rings Integrated Voltage Detection System IVIS Earthing and short-circuit device, 3-phase incl. operating rod Cable dummy plug Cable test socket on cable connector for cable measurement Blanking caps for live cable connectors which have been withdrawn always required optional Auxiliary equipment - for transport only Possible arrangement of the castors Castors to be used for movements in longitudinal direction for transverse movements 14
15 MODULES The modules and attachments shown on this page apply to - outgoing feeder panels - incoming feeder panels - panels with circuit-breaker in case of coupler panels and bus sectionalizers. Switching device module Gas tank incl. pressure relief device, gas lines and pressure gauge Switching devices with threeposition switch and vacuum circuit-breaker, desiccant Drive section module Drive casing with drive mechanis incl. interlocks Attachment of drive casing on switching device module incl. connecting parts Attachments for the vacuum circuit-breaker Motor drive mechanism to charge the energy-storing device Auxiliary switch,, 12 or 16 contacts; contact elements are required for the basic circuitry (material: silver [normal], gold, silver-palladium) Passing contact for pulse contact time stretching (contacts normal or gold-plated) Push switch actuated by energystoring device. (Push switches for basic circuitry included in basic design) Push switch, actuated by ON- OFF pushbutton. (The basic design includes 1 push switch for each) Shunt closing release, 1 ea. Shunt opening release, 1 or 2 ea. with or without auxiliary spring energy store Secondary release, 1 or 2 ea., or in case of design without undervoltage release: 3 ea. Undervoltage release, with or without time delay Blocking coil on "ON" pushbutton. Always required on coupler switch in case of bus section coupler and bus coupler, consisting of 2 panels (switchgear panel + bus riser panel) Blocking coil on "OFF" pushbutton. Always required on coupler switch in case of bus section coupler and bus coupler, consisting of 1 or 2 panel(s) (switchgear panel + bus riser panel) Mechanical lock-out with lock (for vacuum circuit-breaker and three-position switch) Counter Attachments for threeposition switch Motor-drive mechanism. In case of single busbar: 1 motor-drive mechanism each for isolating and earthing movements. In case of double busbar: 1 motor-drive mechanism for the isolating movement of busbar 1, busbar 2 and earthing movement of busbars 1+2. The vacuum circuitbreaker's ON button features a mechanical lock-out. An auxiliary switch, 2-20 contact elements each, for disconnecting and earthing movement. (Material: silver [normal], gold, silverpalladium) Interlocking solenoid. Single busbar: only in circuit-breaker panel of coupler and in bus riser panel of bus sectionalizer. Generally required in case of double busbar. If the interlocking solenoids are not installed in case of remote control (motor-drive mechanism) of the three-position switch, the local actuation is not locked. In this case, mechanical lock-outs (locks) are required on the "ON" button of the vacuum circuit-breaker and on the threeposition switch. always required optional 15
16 INTERLOCKS Actuation of the three-position switch and the continuous mechanical interlock between circuitbreaker and three-position switch are designed in such a way that the operator can proceed as usual. This means separate, completely interlocked actuation for the switching procedures Establishing isolating distance and Earthing. For the earthing procedure, which is only possible with the three-position switch in isolated position, the circuit-breaker switched off and the circuit-breaker energy-storing device pre-charged, the circuitbreaker is connected positively after the contact blades have been inserted into the earthing contacts, and protected against immediate mechanical or electrical switching OFF. Vice versa, on de-earthing, the circuit-breaker is first switched off positively before the isolating distance to the earthing contacts established. The interlocks ensure that each switching operation is always performed completely. Thus, once the switching operation has commenced, the motion cannot be reversed, if applicable, and the operating lever cannot be removed before it reaches its end position. The description only refers to the single busbar. In the case of double busbars, some of the internal interlocking functions of the panel, as well as all inter-panel interlocking functions are performed by electro-mechanical interlocks (blocking coil). The following interlocking functions are provided: - Disconnector does not switch ON while the circuit-breaker or the earthing switch are ON - None of the disconnectors switches OFF while the circuit-breaker or the earthing switch are ON - Circuit-breaker only switches ON with the disconnector in its end position - No earthing with disconnector engaged - No earthing with circuit-breaker ON - No earthing without circuit-breaker being in ready-to-operate condition - Automatic connection of circuitbreaker during earthing - Automatic disconnection of circuit-breaker during de-earthing The following has been ensured: - The operating crank cannot be removed from the disconnector or earthing switch before it has reached its end positions completely - The circuit-breaker cannot be actuated while a switching operation is being performed on the disconnector or earthing switch - The circuit-breaker cannot be switched off with the three-position switch in earthing position - All interlocks act partly mechanically and partly electrically - An operating crank can only be inserted on the disconnector or earthing switch once the insertion opening has been released via a manual interrogation system. - All interlocks also effective when the three-position switch is motor-actuated. 16
17 Gas compartment monitoring Single busbar with bus section coupler Gas-filled busbar compartments 2 Gas-filled circuit-breaker compartments Gas-tight electrical bushing Check valve Gas connector socket (disposal valve) Pressure gauge Gas compartment monitoring Double busbar with bus coupler Gas-filled busbar2 compartments 2 Gas-filled busbar1 compartments 3 Gas-filled circuit-breaker compartments Gas-tight electrical bushing Double check valve Gas connector socket (disposal valve) Pressure gauge 17
18 Gas-filled compartments of the /B series panels up to.5, single busbar up to.5, double busbar up to 52, single busbar up to 52, double busbar up to 36, single busbar up to 36, double busbar Gas-filled circuit-breaker compartment busbar 1 compartment busbar 2 compartment 1
19 >> Standards Regulations, provisions and standards WI series switchgear units are > metal enclosed > SF 6 insulated > prefabricated and type-tested > tested for internal faults AMBIENT AND OPERATING CONDITIONS WI switchgear units are to be operated under normal operating conditions according to the specifications EN or the IEC publication (new: IEC ). Operation under conditions other than these is only admissible upon consultation with and with the consent of the manufacturer. DEGREES OF PROTEC- TION AGAINST FOREIGN OBJECTS AND ACCIDEN- TAL CONTACT Main electric circuits IP 65 Drives IP 2X, IP 5X 1) Low-voltage IP 3X, IP 5X 1) cabinets and cable connection compartments (operator s side with cable compartment cover and side panels) 1) Optional OTHER AMBIENT TEMPERATURES The rated (normal) currents IN specified in the selection tables refer to a maximum ambient switchgear temperature of C. In case of different maximum ambient temperatures T of the switchgear, between + C and +55 C, the appropriate normal current I NT can be determined from the following formula: At 0C T < 0C I NT = I N T 65 At 0C < T 55 0C I NT = I N T Ambient conditions Temperature class Min./max. ambient temperature C "Minus indoors 1) -5 1) / 2) Average value over 24 hours (max.) Maximum installation altitude above sea level Insulating gas Type C m 35 3) 4) Sulphur hexafluoride (SF 6 ) Design pressure p re at 20 C MPa ) Optional: minus indoors 2) Optional up to 55 C in case of reduction of normal currents 3) Optional up to C in case of reduction of normal currents 4) Higher installation altitudes possible on request 19
20 TYPE DESIGNATION The type designation of the typetested, prefabricated panels contains information about their design, rated voltage, insulation level, panel width and panel height. Example: Prefabricated, type-tested WI series panel with single busbar, for indoor installation, version A Rated peak withstand current Rated voltage 12 ; insulation level acc. to list 2 Panel width: 600 mm, panel height: 2 mm Type designation: WI A 10 / 12-2 / 621 Series Version Type designation WI... /.. -. A B Explanation Fully insulated (SF 6 ) switchgear panels, primarily for distribution substations, for very stringent requirements Single busbar, indoors Double busbar, indoors Rated peak withstand current Rated voltage Dimension code WI A WI A WI B 10 / 12-2 / 17-2 upper rated voltage / 24-2 / 36-2 / 3-2 / / up to.5 / 621 Panel width 600 mm Panel height 2 mm up to 52 / mm 2664 mm up to.5 / mm 2750 mm WI B up to 52 / mm 3314 mm 20
21 APPLIED NORMS WI switchgear units meet the following standards and regulations: Designation IEC standard IEC classes EN standard Switchgear Behaviour in case of internal faults Circuit-breaker Earthing switch Disconnector Current transformers Inductive voltage transformers Voltage detection syste Protection against accidental contact, foreign objects and water Erection Operation of electrical equipment IEC IEC (new IEC ) IEC 6029 IEC IEC IEC IEC IEC IEC IEC Category for operating availability: LSC 2A Partition class (compartmentalization class): PM M2, E1, C1 E2 M1 EN EN (new EN ) EN 6029 EN EN EN EN EN EN HD 637 S1 EN
22 >> Selection tables / 12 Rated insulation level Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component 1s 3s mm / bar Hz A % /12-2/ /12-2/ /12-2/ / / /12-2/ /12-2/ ) /12-2/ /12-2/ /12-2/ / / /12-2/ /12-2/ ) 10/12-2/ /12-2/621 10/12-2/ / / /12-2/ ) 10/12-2/ /12-2/627 10/12-2/ / / /12-2/627 LS = Circuit-breaker TS = Disconnector E = Earthing switch 00 2) 1) with cooling gas tank, panel height 2750 mm 2) with motor-actuated fan 3) possible limits and components fitted, refer to project planning documents WI no ) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure 0.3 bar at a filling pressure of 0. bar; 0.7 bar at a filling pressure of bar 22
23 Rated operating sequence Number of operating cycles without overhaul Operating times with release Command times with release mechanical electrical W 160 W 160 W W 160 W 160 W O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W On Off A A s s
24 / 17 Rated insulation level Rated operatin sequence Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s mm / bar Hz A % /17-2/ /17-2/621 /17-2/ /17-2/621 /17-2/ / / ) 3 /17-2/627 /17-2/627 /17-2/627 /17-2/ / / /17-2/627 10/17-2/621 10/17-2/621 10/17-2/ / / ) /17-2/621 10/17-2/627 10/17-2/627 10/17-2/ / / ) /17-2/ ) LS = Circuit-breaker TS = Disconnector E = Earthing switch 1) with cooling gas tank, panel height 2750 mm 2) with motor-actuated fan 3) possible limits and components fitted, refer to project planning documents WI no ) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure 0.3 bar at a filling pressure of 0. bar; 0.7 bar at a filling pressure of bar 24
25 g Number of operating cycles without overhaul Operating times with release Command times with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
26 / 24 Rated insulation level Rated operatin sequence Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s mm / bar Hz A % /24-2/ /24-2/621 /24-2/ /24-2/621 /24-2/ / / ) 3 /24-2/627 /24-2/627 /24-2/627 /24-2/ / / /24-2/627 10/24-2/621 10/24-2/621 10/24-2/ / / ) /24-2/621 10/24-2/627 10/24-2/627 10/24-2/ / / ) /24-2/ ) LS = Circuit-breaker TS = Disconnector E = Earthing switch 1) with cooling gas tank, panel height 2750 mm 2) with motor-actuated fan 3) possible limits and components fitted, refer to project planning documents WI no ) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure 0.3 bar at a filling pressure of 0. bar; 0.7 bar at a filling pressure of bar 26
27 g Number of operating cycles without overhaul Operating times with release Command times with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
28 / 36 Rated insulation level Rated operatin sequence Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s mm / bar Hz A % 6/36-2/ /36-2/621 6/36-2/ /36-2/621 6/36-2/ / ) /36-2/627 6/36-2/627 6/36-2/627 6/36-2/ / /36-2/627 10/36-2/ ) /36-2/621 10/36-2/ / 50/ /36-2/621 10/36-2/ ) /36-2/627 10/36-2/ / 50/ /36-2/ ) 31 LS = Circuit-breaker TS = Disconnector E = Earthing switch 1) with cooling gas tank, panel height 2750 mm 2) with motor-actuated fan 3) possible limits and components fitted, refer to project planning documents WI no ) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure 0.7 bar 2
29 g Number of operating cycles without overhaul Operating times with release Command times with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
30 / 3 Rated insulation level Rated operatin sequence Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s mm / bar Hz A % /3-2/ /3-2/621 /3-2/ /3-2/621 /3-2/ / / ) /3-2/627 /3-2/627 /3-2/627 /3-2/ / / /3-2/627 /.5-2/621 /.5-2/621 /.5-2/ (200) 5 215/90 (220/90) ) /.5-2/621 /.5-2/627 /.5-2/627 /.5-2/ (200) 5 215/90 (220/90) ) /.5-2/ ) 31 LS = Circuit-breaker TS = Disconnector E = Earthing switch 1) with cooling gas tank, panel height 2750 mm 2) with motor-actuated fan 3) for possible limit values and components fitted, refer to the project planning documents WI no ) adm. tolerance range, is not a manufacturing tolerance, for the current value of a specimen, refer to the routine test report 5) minimum service pressure at 20 C = 1.0 bar (overpressure) 30
31 g Number of operating cycles without overhaul Operating times with release Command times with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
32 /.5 UP TO 52 KV 2 vacuum interrupter chambers per conductor Rated insulation level Rated operatin sequence Type Panel width Rated voltage Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr at 20 0C 5) Rated frequency Rated (normal) current 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s 10/.5-2/626 10/.5-2/626 mm / 220/90 bar Hz 50 A ) % 26 10/.5-2/633 10/.5-2/ / ) 26 /52-2/626 /52-2/ (60) 0 (110) / / ) 2 26 /52-2/633 /52-2/ (60) 0 (110) / / ) LS = Circuit-breaker TS = Disconnector E = Earthing switch 1) with cooling gas tank, panel height 3314 mm and with motor-actuated fans 2) with motor-actuated fan 3) possible limits and components fitted, refer to project planning documents WI no ) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure at 20 C: 0.1 bar at a filling pressure of 1.45 bar; 1. bar at a filling pressure of 2.2 bar 32
33 g Number of operating cycles without overhaul Operating times with release Command times with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
34 / 1 AND 2-POLE, FOR STATIONARY RAILWAY TRACTION POWER SUPPLY 50/60 HZ with 2 vacuum interrupter chambers per conductor Rated insulation level Rated operatin sequence Type Panel width Rated voltage UNM acc. to EN Rated voltage U acc. to EN Rated lightning impulse withstand voltage Rated power frequency withstand voltage Ratings of isolating distance Design pressure Pr bei 20 0C 5) Rated frequency Rated (normal) curren 3) Rated peak withstand current equal to rated short-circuit making current Rated short-time current Rated short-circuit breaking current Percentage value of the DC component O - 3 min - CO - 3 min - CO O s - CO - 3 min - CO CO - 15 s - CO 1s 3s 6/55-S/626 6/55-S/626 mm / 290/110 bar 2.2 Hz 50/60 A % 26 6/55-T/626 6/55-T/ / / Z / / LS = Circuit-breaker TS = Disconnector E = Earthing switch S = 1-pole T = 2-pole 3) without cooling gas tank and heat sink 4) adm. tolerance range, no manufacturing tolerance, current value of one specimen, see routine test report 5) minimum service pressure at 20 C 1. bar 34
35 g Number of operating cycles without overhaul Operating times with release Command time with release mech. electrical W 160 W 160 W W 160 W 160 W O s - CO - 15 s - CO Cable breaking current Small indirect currents Rated breaking current under out-of-phase conditions LS, TS, E with rated (normal) current with rated short-circuit breaking current Opening time 4) Opening time 4) Closing time 4) Arc duration (max.) Off Off On On Off Charging time for motor drive mechanism Operating time for disconnector and earthing switch with motordrive mechanism, 160 W A A s s
36 >> Range of products AND SWITCHGEAR PANELS SINGLE BUSBAR PANELS Circuit-breaker panel With inner cone-type cable connection for - rated voltage up to 52 - rated short-circuit breaking current up to 52 - rated busbar and outgoing feeder (normal) currents up to 00 A Circuit-breaker panel (Inner cone-type cable connection) or or or and Plug-in cable single, Terminal type 3 Voltage transformer, pluggable 1) Surge arrester, pluggable Busbar current transformer Busbar attachments or or or or Panel connection variants Plug-in cable single Plug-in cable double Plug-in cable triple Plug-in cable quadruple Busbar with solid insulation Disconnector panel With inner cone-type cable connection for - rated voltage up to 52 - rated short-time current up to - rated busbar and outgoing feeder (normal) currents up to 00 A Voltage transformer, pluggable Surge arrester, pluggable Panel connection attachment 1) 1) 1) 1) Current transformer 1) if a surge arrester is used, the number of cables is reduced by one Bus section coupler for - rated voltage up to 52 - rated short-circuit breaking current up to - rated busbar (normal) currents up to 00 A Bus section coupler Current transformer 1) not possible in case of 52 36
37 DOUBLE BUSAR PANELS Circuit-breaker panel With inner cone-type cable connection for - rated voltage up to 52 - rated short-circuit breaking current up to - rated busbar and outgoing feeder (normal) currents up to 00 A Circuit-breaker panel (Inner cone-type cable connection) Busbar attachments SS2 SS1 Bus section coupler (Circuit-breaker panel and bus riser panel) With inner cone-type cable connection for - rated voltage up to 52 - rated short-circuit breaking current up to - rated busbar and outgoing feeder (normal) current up to 00 A or Plug-in cable single, Terminal type 3 or Panel connection variants Plug-in cable single Plug-in cable double Voltage transformer, pluggable Panel connection attachment 1) Current transformer Bus section coupler for - rated voltage up to 52 - rated short-circuit breaking current up to - rated busbar (normal) current up to 00 A or or Voltage transformer, pluggable 1) Surge arrester, pluggable or or Plug-in cable triple Plug-in cable quadruple 1) 1) 1) 1) if a surge arrester is used, the number of cables is reduced by one Bus coupler (transverse) for - rated voltage up to 52 - rated short-circuit breaking current up to - rated busbar (normal) current up to 00 A and Busbar current transformer or Busbar with solid insulation Surge arrester, pluggable Metering panel for - rated voltage up to 36 - rated busbar (normal) current up to 00 A 1) not possible in case of 52 37
38 Disconnector panel (Inner cone-type cable connection Bus section coupler / riser panel SS2 SS1 SS2 SS1 Panel connection attachment Panel connection attachment 1) 1) Panel connection variants Plug-in cable single Voltage transformer, pluggable Panel connection variants Plug-in cable single Voltage transformer, pluggable Current transformer or Plug-in cable double or Plug-in cable double or Plug-in cable triple 1) 1) if a surge arrester is used, the number of cables is reduced by one or Plug-in cable triple 1) 1) if a surge arrester is used, the number of cables is reduced by one 1) 1) or Plug-in cable quadruple or Plug-in cable quadruple 1) 1) or Busbar with solid insulation Surge arrester, pluggable or Busbar with solid insulation Surge arrester, pluggable 1) not possible in case of 52 3
39 Bus section coupler Bus coupler Disconnector/earthing switch up to 00 A 1) in line with busbar SS2 SS1 SS2 SS1 SS2 SS1 Current transformer Current transformer Bus coupler up to 2000 A (1 panel width) 1) SS2 SS1 Current transformer 1) only up to.5 Abbreviations SS1 = Busbar 1 SS2 = Busbar 2 39
40 >> Cable connections TERMINAL TYPES AND SIZES CABLE CONNECTIONS IN OUTGOING FEEDER BLOCK The medium-voltage cables are connected to the switchgear panels via metal-enclosed inner cone-type plug-in terminations. The panels are equipped with inner cone-type appliance couplers according to EN Cable connections in outgoing feeder The manufacturer s specifications of the regarding selection and assembly of the plug-in terminations must be adhered to. This does not only apply to the selection of size, but also to all electrical rated data, in line with the switchgear s data. It is essential that all appliance couplers which are not equipped with plug-in terminations are terminated correctly using voltage-proof and fully shrouded insulating terminals/dummy plugs. To this effect, the inner cone-type cable plug-in terminations for attachment to WI require capacitive decoupling. The coupling electrodes for the capacitive voltage detection system are an integral part of the appliance couplers installed in the switchgear panel. 3-phase switchgear panels 1-phase switchgear panels 2-phase switchgear panels Inner cone acc. to EN 5011 Terminal types: size A size 2 0 A size 3 10 A (up to.5 ) size 3 (>.5 up to 10 A 52 ) size 4 00 A Single / double busbar Single cable, 3-phase, without outgoing voltage transformer x size 1 1x size 2 1x size 3 1x size 4 Size 4 with supporting structure increased in height Single cable connection Single busbar Railway traction power supply with 2 vacuum interrupter chambers per phase 1x size 3/S 1-pole L1 2-pole L1, L3
41 Single / double busbar with 1 vacuum interrupter chamber per conductor/phase Multi-cable, 3-phase, without outgoing voltage transformer 2 x size 1 3 x size 1 2 x size 2 3 x size 2 4 x size 2 2 x size 3 3 x size 3 4 x size 3 1 x size x size 3 1 x size x size Multi-cable connection Single / double busbar with 2 vacuum interrupter chambers per conductor/phase Single- and multi-cable, 3-phase, without outgoing voltage transformer 1 x size 3 1 x size 3/S 2 x size 3 2 x size 3/S 3 x size 3 3 x size 3/S.5 BIL BIL 0 Single busbar for stationary railway traction power supply with 2 vacuum interrupter chambers per conductor/phase Multiple cable without voltage transformer 2 x size 3/S 3 x size 3/S 4 x size 3/S 5 x size 3/S 1-phase L1 2-phase L1 + L3 41
42 Single / double busbar with 1 vacuum interrupter chamber per conductor/phase Multi-cable, 3-phase with 3 outgoing voltage transformers Multi-cable connection with voltage transformer in outgoing feeder 1 x size 2 3 x size 2 4 x size 2 1 x size 3 2 x size 3 3 x size 3 4 x size 3 1 x size x size 3 1 x size x size 3 1 x size x size 3 1 x size x size 3 1 x size x size Single / double busbar with 2 vacuum interrupter chambers per conductor/phase Multi-cable, 3-phase, with 1 outgoing voltage transformer (1-phase in L2).5 BIL BIL 0 1 x size 3 1 x size 3/S 2 x size 3 3 x size 3/S possible up to rated (normal) current in outgoing feeder of max A Single busbar for stationary railway traction power supply with 2 vacuum interrupter chambers per conductor/phase Multi-cable with 1 or 2 voltage transformers 1-phase L1 1 x size 3/S 2 x size 3/S 3 x size 3/S 4 x size 3/S 2-phase L1 + L3 Voltage transformers L3 Voltage transformers L1 + L3 42
43 >> Ecological considerations A WI switchgear satisfies to a high degree ecological requirements in view of environmental protection thanks to > optimization of material and energy consumption during manufacture > compliance with all ecological requirements during its service life > the use of recyclable materials for efficient disposal at the end of its service life. Our design directives regarding environmentally compatible design specify the use of materials which are easily recyclable and can be disassembled. The metals which make up approx. 90 % of the switchgear are easily recyclable. At the end of their service life, they are recycled % in the form of homogenous materials. Plastics can also be recycled. Thermosetting i.e. non-melting plastics can be comminuted and reused as fillers in other plastic components; thermoplastic - i.e. melting - materials can be recycled in the form of homogenous material. This means that the material is conserved, melted down and used for the construction of new durable parts. To ensure efficient and environmentally compatible disassembly and assignment of materials by the responsible disposal experts, the switchgear s plastic components have been identified accordingly. Moreover, material and utilization data sheets are available to provide the customer with an overview about the materials used. Equally, the disposal company is provided with important information regarding the recycling process. Thus, the materials used for our products can be reused %. This represents a major contribution towards saving primary energy and material resources. All materials were selected and developed so that e.g. in case of fire within buildings, affected switchgear only have a minor influence on the fire load (heat development, pollutants in the emissions). Another important ecological aspect is the longevity of our products (min. 30 to years), which is an extremely long service life compared to other capital goods. Furthermore, the switchgear units have been designed so as to require little maintenance which would in turn use up energy and material, and so as to enable straightforward replacement of part components, e.g. if new controllers have been developed on the market (upgrading). In our gas-insulated switchgear WI, the majority of the switchgear panel has been sealed hermetically in an insulating inert gas (sulphur hexafluoride SF 6 which is neither reactive nor toxic). Thus, all environmental influences reducing the service life are shut out. The special characteristics of the insulating gas also enable an overall size reduction by approx. 50 percent versus switchgear designed without insulating gas with comparable technical properties. This again saves a lot of material and energy required for material production. The portion of insulating gas used for WI switchgear amounts to approx. 0.5 percent by weight. Once the switchgear s service life has elapsed, the gas is extracted completely via the disposal valve provided serially in each gas-filled, cladded compartment, and then recycled. The gas suppliers have developed an efficient recycling concept to this effect. During normal operation, the gas need not be replenished during the entire service life of the switchgear. The switchgear is a hermetically sealed pressure system acc. to IEC (IEC ). Average material distribution in gas-insulated switchgear units Materials Wt. % Metals Steel Copper Aluminium, brass Plastics Thermosetting plastics Thermoplastics Elastomers Electronics Plastics Metals Insulating gas Sulphur hexafluoride
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