Medium Voltage Distribution CBGS-2. Gas Insulated metal enclosed Switchgear 52 kv. Catalogue

Transcription

1 Medium Voltage Distriution CBGS-2 Gas Insulated metal enclosed Switchgear 52 kv Catalogue

2 new path for achieing your electrical installations comprehensie offer The CBGS-2 range is part of a comprehensie offer of products that are perfectly coordinated to meet all medium and low oltage electrical distriution requirements. ll of these products hae een designed to work together: electrical, mechanical and communication compatiility. The electrical installation is thus oth optimised and has improed etter serice increased personnel and equipment guaranteed efficient monitoring and control. You therefore hae all the adantages at hand in terms of know-how and creatiity for achieing optimised, safe, upgradeale and compliant installations. Tools for facilitating the design and installation With Schneider Electric, you hae a complete range of tools to help you get to know and install the products whilst complying with current standards and good working practices. These tools, technical sheets and guides, design software, training courses, etc are regularly updated. Schneider Electric is associating itself with your know-how and your creatiity to produce optimised, safe, upgradeale and compliant installations For a real partnership with you uniersal solution doesn t exist ecause each electrical installation is specific. The ariety of cominations on offer allows you to truly customise the technical solutions. You are ale to express your creatiity and put your know-how to est adantage when designing, manufacturing and exploiting an electrical installation.

3 CBGS-2 Contents General oeriew Field of application 4 Main characteristics 5 Functional units Basic description 8 Configurations for single usar 10 Configurations for doule usar 12 pparatus 52 kv circuit reaker 14 Circuit reaker operating mechanism 15 3 position disconnector 17 Current transformers 18 Voltage transformers 19 General usar system 20 Installation Power cales 21 Implementation examples 22 Ciil engineering 23 DEGI04EN.indd 3

4 General oeriew Field of application PE57607 PE57606 PE57605 PE57603 PE57602 PE57601 PE57604 Power supply utilities Windfarms irports Industrial sector Cogenerations Traction sustations mono-phase, two-phase and three-phase ersions High speed trains (TGV) Railways Underground Tramways. The technical requirements for traction sustations are different from those of other types of installations. For this reason, CBGS-2 range is extended for this market with other ersions, keeping the asic architecture of the switchgear inariale. In any case, CBGS-2 range complies with the specifications of general international standards and specific standards for railways, maintaining the usual characteristics of our switchgears, that is, reliaility, safety, roustness and repairaility. 4 DEGI04EN.indd

5 General oeriew Main characteristics PE57608 CBGS-2 range of switchgears has een officially approed y the main power supply utilities as well as y the main industrial and infrastructure users. Nowadays, more than 7,000 switchgears of the CBGS range hae already een installed. This range of switchgears offers certain distinctie characteristics, such as the following ones: Low working pressure (0.4 relatie ars) Homogeneous architecture High degree of partitioning Optional gas exhaustion channel for single usar ersion. Besides, the design of he CBGS-2 switchgears fully meets the asic requirements of end users: Inestment optimization Serice continuity Operation safety. Inestment optimization The switchgears of the CBGS-2 range are the est choice of inestment due to the following features: Optimization of the required space compared to other outdoor solutions The compact design, as well as the SF6 insulation of the switchgears, proide extremely reduced dimensions compared to traditional outdoor solutions. n appropriate solution is thus proided for uran enironments or reduced spaces. Simplified engineering s a result of the experience gathered in collaoration with Power Supply Utilities, Consultants and Contractors, there is a complete range of already deeloped solutions which consideraly simplify the engineering work. Integral management of networks For those clients who wish to install a complete superision system for their switchgears in order to improe their electrical supply, there is a full range of protection, control and monitoring elements suitale for CBGS-2 switchgears. Serice continuity Choosing CBGS-2 switchgears proides users with the highest degree of aailaility of their MV units, thus ensuring the greatest reliaility and quality when supplying energy to the clients of the Power Supply Utilities. Highly confirmed quality Proen experience in the design and manufacturing of SF6 insulated primary distriution switchgears. Use of 3D design techniques and other adanced tools. Fully factory-tested equipments. Solid and safe design CBGS-2 cuicles can neither e affected y moisture or dirt, nor y corrosie or polluted operating enironments, since all high oltage parts are contained inside the SF6 tanks, which are made of stainless steel. The hermetic nature of the stainless steel tanks ensures the protection of the cuicles against external agents such as dirt, dust, insects, rodents, etc. High degree of maintenance and repairaility The operating mechanism of the circuit reaker is accessile from the outside of the stainless steel sealed tank. The screened oltage transformers, can e plug-in type and independent from the stainless steel tank. Possiility of elements replacement, such as three-phase ushings, gaskets, disconnectors, etc. without moing the affected cuicles or the adjacent ones. Possiility of intermediate cuicles replacement without moing the adjoining ones. Extensions under oltage The design of CBGS-2 switchgears, doule usar ersion, allows the extension of a switchoard without cutting off serice. Low maintenance There is practically no maintenance required for the operation of a CBGS-2 switchoard and this is mainly focused on the operating mechanisms. DEGI04EN.indd 5

6 General oeriew Main characteristics Maximum operating safety CBGS-2 switchgears proide users with the highest degree of safety in operating conditions. High degree of partitioning CBGS-2 switchgears hae een designed so that the apparatus is distriuted in clearly distinguished and independent, gas-tight and insulated compartments, in order to aoid the spreading of an eentual failure. Gas exhaustion channel The single usar ersion offers the possiility of an optional gas exhaustion channel, thus increasing personnel safety. Others n easy to understand system, completed with mechanical and electrical interlocks to preent maloperation. Internal arc withstand, tested and certified according to IEC standard, appendix, 1 to 6 criterions, accessiility class. ll lie parts are placed inside SF6 gas-tight compartments. Safe access to the operating mechanisms and other auxiliary elements, as these are placed outside the SF6 tanks. Each phase incoming/outgoing is proided with oltage presence indicators. Minimum fire contriution. PE DEGI04EN.indd

7 General oeriew Main characteristics PE57610 General electrical data Rated oltage kv 52 Rated insulation leel Power frequency withstand oltage, 50 Hz Lightning impulse withstand oltage Rated normal current Busar system Incoming/outgoing KV rms kv peak Short circuit reaking current (C.B.) k 25 Short circuit making current (C.B.) k peak 63 Short time withstand current k/s 25 Internal arc withstand 1 s k 25 SF6 gas pressure at 20ºC Bar 0.40 Standard degrees of protection HV compartment LV compartment IP 65 IP 3X Max Max (1) Specific electrical data, monophase and two-phase ersions Monophase Two-phase Rated oltage kv 1 x x 27.5 BIL kv Busar rated normal current Max Max Incoming/outgoing rated normal current Max Max (1) The aoe mentioned alues are gien for normal operating conditions (2) according to IEC and IEC standards: mient air temperature Less than or equal to + 40ºC Less than or equal to + 35ºC on aerage oer a 24 hour period Greater than or equal to 5ºC. Virations: lack of irations external to the switchgear ltitude: less than 1000 m oer the sea leel (3). Standards IEC IEC IEC IEC (1) For other technical requirements, please contact Schneider Electric. (2) For other operating conditions or specially aggressie enironments, please contact Schneider Electric. (3) For higher altitude, please contact Schneider Electric. DEGI04EN.indd 7

8 Functional units Basic description PE Busar 2 SF6 tanks for usar system 3 SF6 tank for circuit reaker 4 Power cale compartment 5 LV compartment PE57612 Each CBGS-2 switchoard is made up of seeral functional units (switchgears) assemled to each other. Each functional unit contains all the necessary elements to carry out its task. 1 The different switchgears (functional units) are interconnected y means of a usar system, placed inside one of the SF6 tanks. The quality of the earthing of all the metal compartments of the switchgear is ensured y the connection of the earthing ar from each compartment to the earthing collector 2 ar of the switchgear. The switchgear The outer structure of each switchgear is a set of panels (RL 1007 for the front panel coering the circuit reaker operating mechanism and RL 7032 for the rest), metal sheets and frames. In accordance with IEC requirements, all of them are metallic and earthing. 3 It consists of four or fie (single usar, doule usar) independent compartments metallic and earthing. great partitioning is thus achieed in order to aoid damage spreading in case of an eentual failure. The Low Voltage compartment (ox), separated from the Medium Voltage area, is located at the lower part of the switchgear and contains Sepam type relays as an option (for other ersions, please consult us) and the rest of Low Voltage auxiliary elements for protection and control. The general usar system (up to 2000) is located at the upper part of the switchgear. 4 This compartment uses SF6 gas as insulating medium and contains the following elements inside it: 5 Inner usar and connections Disconnector and earthing switch. The main compartment, which uses SF6 gas as insulating medium and contains the circuit reaker is located at the central part of the switchgear. The power cales and the usar system are connected to it y means of ushings. The Medium Voltage incoming/outgoing cale connection compartment is placed in the lower part of the switchgear and is accessile from the rear part. It contains the following elements: dequate socket ushings for the connection of MV cale terminals Pfisterer type straight connectors (optional) Clamps for indiidual fastening of each power cale Socket ushing for simple and safe insulation test of MV cales or for plug-in type oltage transformers (optional) Toroidal-core current transformers (optional). Enironment CBGS-2 switchgears hae een designed with the aim of presering the enironment: the materials used are clearly identified for an easy separation and recycling. Besides, the SF6 can e collected and reused after an appropriate processing. The enironmental management system followed y Schneider Electric is certified according to the estalished requirements of the ISO standard. DE DEGI04EN.indd

9 Functional units Basic description 1 Low Voltage compartment 2 Protection and control relays. Sepam or similar type (optional) 3 General usar system, inside a 3 mm thick stainless steel tank, with the appropriate three phase ushings 4 SF6 gas pressure relief deices 5 Two or three position disconnector (disconnector and earthing switch) 6 Operating mechanism of the disconnector 7 ctuating shaft for the operating handle of the operating mechanism of the disconnector 8 Pushuttons for the electrical operating mechanism of the disconnector (optional) 9 Disconnector indicator: open/closed 10 Earth indicator: open / closed 11 Metal tank (3 mm, stainless steel), sealed for life 12 SF6 gas pressure relief deice 13 Circuit reaker 14 Operating mechanism of the circuit reaker 15 ctuating shaft for the operating handle of the manual spring charging 16 Opening and closing pushutton 17 Mechanical pushutton for emergency opening 18 Position indicator (open/closed) 19 Operation counter 20 Power cales compartment 21 Power cales connectors (optional) (more information in page 21). 22 Earthed power cales key lock (optional) 23 Current transformers (optional) 24 Socket ushing for oltage transformers, surge arrestor, etc. (optional) 25 MV connection cale for oltage transformers(optional) 26 Capacitie oltage indicators per phase 27 Pressure gauge for SF6 pressure indication inside the circuit reaker compartment 28 Pressure gauge for SF6 pressure indication inside the usar cuicles (1 per each usar system) 29 Characteristics nameplate 30 Pressure switch PE57614 PE Frontal iew of mechanisms panel and synoptic DEGI04EN.indd 9

10 Functional units Configurations for single usar Standardized solutions The choice etween different cuicle installations (including for the low-oltage compartment) presents considerale adantages. The tales elow each of the configurations indicate only the most common standardized options. Flexiility of design The design of CBGS-2 switchgears allows the use of many other options, so in case of any particular need, please consult us. DE58941 Function ailale function Optional function Not aailale function. (1) In case of additional VT or surge arrester, we hae 3 power cales and an auxiliary socket. (2) This section will e limited y the connector, which is size 3, 52 kv. (3) For other characteristics, please contact Schneider Electric. Rated oltage (kv) 52 Busar rated normal current () 1250 / 1600 / 2000 Incoming/outgoing rated normal current () 630 / 250 / 1600 Rated short time withstand current 3 s/1 s (k peak) 25/ 63 SF6 control pressure gauge of central cuicle SF6 control pressure gauge of usars (in lateral panel) Measuring in general usars Voltage transformers Current transformers Disconnector 2 or 3 positions 3 positions Manual operating mechanism Motor-operated mechanism Rated normal current 630 / 1250 / 1600 Disconnector key lock in open position Disconnector key lock in closed position Earthing switch key lock in open position Earthing switch key lock in closed position Earthed cale termination key lock Electromagnetic lock for the disconnector Electromagnetic lock for the earthing switch Circuit reaker (electrically operated) Rated normal current () 2000 Supply oltage (Vdc) 110 / 125 (3) Tripping coil Doule Circuit reaker locking in open position Mechanical locking for opening pushutton Voltage indicators Power cales and transformers ottom compartment Maximum numer of incoming/outgoing cales per phase 3 (1) / 500 mm 2 (2) Toroidal-core current transformers Bus section usar system Current transformers in us section Voltage transformers in us section Cale disconnector Low oltage compartment Light (lamp + micro) Protection relay Sepam or similar type Control type (Conentional or digital) Conentional / Digital uxiliary relays and deices: Switch Conerter Circuit reakers LV terminals 10 DEGI04EN.indd

11 Functional units Configurations for single usar DE58942 DE58943 DE58944 DE58945 DE58946 Line switchgear with cale disconnector Measuring switchgear Bus coupling Riser Lateral incoming with disconnector / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1250 / / 1250 / / / / / / 63 (in lateral panel) (in lateral panel) (in lateral panel) (in lateral panel) (in lateral panel) 3 positions 3 positions 2 positions (3) 2 positions (3) 3 positions 630 / 1250 / / 1250 / / 1250 / / 1250 / / 1250 / / 125 (3) 110 / 125 (3) Doule Doule 3 (1) / 500 mm 2 (2) 3 (1) / 500 mm 2 (2) Conentional / Digital Conentional / Digital Conentional / Digital Conentional / Digital Conentional / Digital DEGI04EN.indd 11

12 Functional units Configurations for doule usar DE58947 B Function ailale function Optional function Not aailale function. (1) In case of additional VT or surge arrester, we hae 3 power cales and an auxiliary socket. (2) This section will e limited y the connector, which is size 3, 52 kv. (3) For other characteristics, please contact Schneider Electric. Rated oltage (kv) 52 Busar rated normal current () 1250 / 1600 / 2000 Incoming/outgoing rated normal current () 630 / 1250 / 1600 / 2000 Rated short time withstand current 3 s/1 s (k peak) 25 / 63 SF6 control pressure gauge of central cuicle SF6 control pressure gauge of usars (in lateral panel) Measuring in general usars Voltage transformers Current transformers Disconnector 2 or 3 positions 3 positions Manual operating mechanism Motor-operated mechanism Rated normal current 630 / 1250 / 1600 Disconnector key lock in open position Disconnector key lock in closed position Earthing switch key lock in open position Earthing switch key lock in closed position Earthed cale termination key lock Electromagnetic lock for the disconnector Electromagnetic lock for the earthing switch Circuit reaker (electrically operated) Rated normal current () 2000 Supply oltage (Vdc) 110 / 125 (3) Tripping coil Doule Circuit reaker locking in open position Mechanical locking for opening pushutton Voltage indicators Power cales and transformers ottom compartment Maximum numer of incoming/outgoing cales per phase 3 (1) / 500 mm 2 (2) Toroidal-core current transformers Bus section usar system Current transformers in us section Voltage transformers in us section Cale disconnector Low oltage compartment Light (lamp + micro) Protection relay Sepam or similar type Control type (Conentional or digital) Conentional / Digital uxiliary relays and deices: Switch Conerter Circuit reakers LV terminals 12 DEGI04EN.indd

13 Functional units Configurations for doule usar DE58948 DE58949 DE58950 DE58951 DE58952 B B B B B Measuring switchgear Bus coupling Riser Cross coupling Lateral incoming with disconnector / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1600 / / 1250 / / / / / / 63 (in lateral panel) (in lateral panel) (in lateral panel) (in lateral panel) (in lateral panel) 3 positions 2 positions (3) 2 positions (3) 2 positions (3) 3 positions 630 / 1250 / / 1250 / / 1250 / / 1250 / / 1250 / / 125 (3) 110 / 125 (3) Doule Doule 3 (1) / 500 mm 2 (2) Conentional / Digital Conentional / Digital Conentional / Digital Conentional / Digital Conentional / Digital DEGI04EN.indd 13

14 pparatus 52 kv circuit reaker PE55037 PE57616 The circuit reaker The circuit reaker of CBGS-2 switchgears has separate poles, is puffer type and uses SF6 gas as reaking and insulating medium. The cast resin enclosure of the circuit reaker fulfils the requirements of IEC standard regarding sealed pressure systems. The relatie pressure of SF6 filling is 0.48 Mpa (4.8 ar). In the ery improale eent of a pressure falling underneath the estalished working threshold, 2 alarms, (at different leels) will e automatically released. Puffer type reaking system: operating principle (1) The fixed and moile main contacts are initially closed. (2) Precompression When the fixed and moile contacts egin to open, the piston slightly compresses the SF6 gas inside the pressure chamer. (3) rcing period The arc strikes etween the arcing contacts while the piston continues its moement. small quantity of SF6 gas is injected onto the arc through the insulating nozzle. For the reaking of low currents, the arc is cooled y forced conection. For high currents, howeer, thermal expansion causes the hot gases to moe towards the colder parts of the pole unit. The distance etween the two arcing contacts ecomes sufficient for the current to e roken when it reaches the zero point, due to the dielectric properties of SF6 gas. (4) Final sweeping The moing parts finish their moement and the injection of cold gas continues until the contacts are completely open. Characteristics of the circuit reaker (1) (2) (3) (4) Rated oltage 50/60 Hz kv 52 Power frequency withstand kv (rms) 95 oltage insulation leel (50 Hz 1 min) Lightning impulse withstand kv (peak) 250 oltage insulation leel (1.2/50 μs) Rated normal current 2000 Short circuit reaking current k (rms) 25 Short circuit making current k (peak) 63 Short time withstand current k (rms) 25 (3 s) Capacitor reaking current 220 for rated current Rated operating sequence O-0.3 s-co-3 min-co pproximate operating time ms Opening Breaking Closing DEGI04EN.indd

15 pparatus Circuit reaker operating mechanism PE57618 Operating mechanism The opening and closing speed of the circuit reaker contacts used for CBGS-2 switchgears is independent of the operator s action. This electrically operated mechanism, which is always motorized, can perform remote control functions and implement fast re-closing cycles. In CBGS-2 type switchgears, all the operating mechanisms are arranged outside the SF6 tank. Furthermore, maintenance in this type of operating mechanisms is quite reduced, as they use self-luricating components. The operating mechanism consists of: spring system that stores the necessary energy for the opening and closing operations. manual spring charging system. n electrical motorized spring charging deice that automatically recharges the springs in less than 5 seconds after the main contacts of the circuit reaker hae closed. Mechanical opening pushutton with optional padlock on the front panel. Electrical system including: Closing coil nti-pumping relay Doule tripping coil Underoltage coil (optional). Operation counter. spring charging indication contact. n end of spring charging indication contact. Mechanical indicator for open/closed position. Mechanical indicator for spring charging position. n optional key lock to interlock the circuit reaker in open position. uxiliary contacts The operating mechanism is equipped with a lock of a maximum of 15 auxiliary contacts. The numer of aailale contacts depends on the composition of the operating mechanism and the options chosen. In any case, at least 3 O/C contacts are aailale on the switchgear outgoing LV terminal lock for the external signals. uxiliary contacts characteristics Rated current 10 Breaking capacity lternating current oltage 10 with 220 Vac (power factor 0.3) Direct current oltage 1.5 with 110 or 220 Vdc (L/R 0.01 s) Electrical characteristics of the operating mechanism Options Spring charging Closing release Doule oltage Underoltage coil motor tripping coil 52 kv 52 kv 52 kv 52 kv Supply oltage Direct current V Vdc Consumption Direct current W (2 x 70) 100/10 Possile cominations of auxiliaries and quantities = or or or DEGI04EN.indd 15

16 pparatus Circuit reaker operating mechanism uxiliary diagram Circuit reaker operating mechanism. The second tripping coil and the opening and locking of the reaker y ery low SF6 pressure are included as a standard option. PE57619 DE58953 Y63BL Y63BL 33L 52Y 52Y Q3 52MC 33 52MC 63BL 63LL Y63BL 52MC 52MC M 52BC 52Y 52B1 Y63BL 52B2 Open circuit reaker with discharged springs and gas at normal pressure M Spring charging motor 52BC Closing release 52Y nti-pumping relay 52B1 Tripping coil 52B2 Second tripping coil 63BL Pressure switch contact for opening 63LL Low pressure alarm Y63BL Pressure switch auxiliary relay for tripping and locking 33 Switch contact for mechanical closing aailaility 33L Switch contact for locking of spring charging motor during manual charging operation 52MC End of charging contacts 16 DEGI04EN.indd

17 pparatus 3 position disconnector PE57620 PE General usar system 2 Fixed contact disconnector closed 3 Moile contact fingers (disconnector open) 4 3 phase ushing towards circuit reaker compartment 5 Joint 6 Fixed contact disconnector earthed. Busar Characteristics of the 3 position disconnector It complies with the requirements of IEC standard for disconnectors and earthing switches. Short circuit current making capacity (disconnector and earthing switch) through the circuit reaker is 25 k. Rated currents: 630 /1250 /1600. n optional cale disconnector can e installed in the rear part of the switchgear. Compact design and reduced dimensions. Highly reliale position indicator (without transmission rods). Single rotation-driing axis for the disconnector and the earthing switch. To operate the earthing switch after operating the disconnector, the operating handle must e remoed and inserted again. These are completely independent operations. Motorization of disconnectors can e included as an option (not adisale for single usar ersion). Operation and interlocks Manually operated y means of an operating handle or motor operated. The operating handle can not e remoed from the actuating shaft until the switching operation has een completed. The circuit reaker can not e closed until the operating handle has een withdrawn (extreme positions of the disconnector). Other special key lock interlocks may e included as an option PE57622 Outgoing Doule usar system 1 Position indicator, open / closed 2 Earthing position indicator 3 ctuating shafts for manual operation of disconnectors 4 Pushuttons for motorized operating mechanism of the disconnector (optional) 5 Pushuttons for motorized operating mechanism of the earthing switch (optional). DE58954 E YS YT EM Options Key locks per function key released: 1 Disconnector in open position 2 Disconnector in closed position 3 Earthing switch in open position 4 Earthing switch in closed position 5 Earthed cales. Electromagnetic locks YS Disconnector YT Earthing switch. DEGI04EN.indd 17

18 pparatus Current transformers PE57626 PE57625 PE57623 Type PE57624 Type B General characteristics rchitecture: Type : toroidal Type B: flanged to SF6 tank. Type : free from dielectrically stressed cast resin components ccording to IEC standards. Mounting possiilities and types Location In cale compartment In SF6 tank Characteristics tale Maximum operating oltage Minimum admissile C oltage Normal operating frequency Thermal currents Permanent (max. alue) Normal short time (3 s) Normal currents Dynamic Primary Secondary Switch possiilities in the secondary winding Core data depending on normal primary current Type B 0.72 kv 3 kv / 1 min 50/60 Hz 1.2 x In 25 k 25 x I. Th 40 to and 5 From to cores maximum Measuring core Power 2.5 V to 15 V Class 0.5 to 1 Oercurrent factor FS5 Protection core Power 2.5 V to 30 V Class 5 or 10 Oercurrent factor From P10 to P30 Dimensions Type Minimum Maximum Internal diameter 60 mm 205 mm Maximum height 130 mm 225 mm Dimensions Type B Height 548 mm Width 420 mm Depth 243 mm Operating amient air temperature 5 C / + 40 C Insulation class E 18 DEGI04EN.indd

19 pparatus Voltage transformers PE57629 PE57628 PE57627 Type PE57624 Type B General characteristics Inductie principle rchitecture: Type : plug-in type y means of MV cale Type B: flanged to SF6 tank. Safe to touch y means of a shielded metal enclosure Cast resin insulated ccording to IEC standards. Mounting possiilities and types Location In cale trench (outside of the switchgear) In SF6 tank Characteristics tale Type B Normal Voltage (Un) > 3.6 to 52 kv Normal alternal oltage in the primary winding 1.2 x Un Voltage normal factor (Un/8 h) 1.9 / 2.5 (*) Voltage in the secondary (**) 100/3 V 110/3 V 100/3 V 110/3 V Thermal current limit (measuring winding) 8 Normal long duration current (8 h) 5 Data according to the accuracy class Class 0.2 Class 0.5 Class 1 (*) 2.5 x Un Optional. (**) For other oltages, please consult Schneider Electric. 20, 25 and 30 V 30, 50 and 60 V 50, 60 and 100 V B 25 V 50 V 100 V DEGI04EN.indd 19

20 pparatus General usar system PE57630 Characteristics of the usar system The usar system is completely segregated and its continuity is achieed y means of three phase usar ushings. The usar compartment is gas-tight and uses SF6 gas as insulating medium. The three position disconnector (open / closed / earthed) is located inside the usar compartment. In case of usar coupling and usar rising switchgears, the standard option is the two position disconnector. The set consists of three independent copper conductie ars. Desiccation ags are included in the usar tanks. Detail of the general usar system Switchgears extension CBGS-2 switchoard can e extended in a quick and simple way on oth ends of the usar system. Extension under oltage is possile in case of doule usar ersion. Such extensions under oltage will e carried out only in those cases when it is asolutely necessary and there is no other choice. It is possile to remoe intermediate switchgears from a switchoard without haing to moe the adjacent ones. PE DEGI04EN.indd

21 Installation Power cales PE57632 Straight connectors, Pfisterer or similar type, size 3, 52 kv for incoming / outgoing cales The connectors used for incoming cales of the whole range of switchgears are metal-enclosed type. They are Pfisterer type, size 3, 52 kv up to 500 mm 2 section, for a maximum insulation diameter of 47.1 mm. For igger sections or igger cale insulation diameters, please consult aailale documentations aout connectors. The maximum numer of power cales per phase is 3, plus a fourth socket for oltage transformers or other elements (arresters). The power cale compartment can house a maximum of four cales per phase PE57634 PE57633 Power cales situation in case of cale-disconnector DEGI04EN.indd 21

22 Installation Implementation examples DE Weight per cuicle approx.: 1,000 kg. ll distances are minimum alues. For further details, please refer to the Instructions Manual. DE CBGS x 2000 CBGS Switchgears placed one in front of the other DE CBGS x Switchgears inside the uilding 22 DEGI04EN.indd

23 Installation Ciil engineering > Leel 1075 DE58958EN Fixing Leel 2 Power cales trench 3 Hole for control cales 4 Fixing 5 Leelling screw M20-DIN Security nut 7 Metal plate 8 Nut welded to the frame 9 Fixing screws (2 fixing points per switchgear) 10 U section (40 x 20 x 5) DE58959EN 1620 Weight per cuicle approx.: 1,000 kg. For further details, please refer to the Instructions Manual Leel adjustment Fixing DEGI04EN.indd 23

24 RT Schneider Electric Industries SS - ll rights resered Schneider Electric Industries SS s standards, specifications and designs change from time to time, please ask for confirmation 35, rue Joseph Monier of the information gien in this pulication. CS F Rueil Malmaison Cedex This document has een printed on ecological paper RCS Nanterre Capital social Pulishing: Schneider Electric Industries SS Design: Graphème Printing: Made in France DEGI04EN