8dj presentation 200809 en - siemens · 8dab10 nx plus nx plus c power generation power stations g...
TRANSCRIPT
Page 3 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Main Applications for Medium-Voltage Switchgear
Power transmissionHigh and extra-high voltage > 72kV
Primary distribution levelMedium voltage up to 40.5kVup to 40kA (3s)
Secondary distribution levelMedium voltage up to 24kVup to 25kA (1s)
Distribution levelLow voltage < 1kV
8DJ10/20 8DH10 SIMOSEC
8DAB10 NXPLUS NXPLUS C
Power generationPower stations
G
x xx xxx xx x
x
Page 4 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
� Overview
� Technical Data
� Product Range 8DJ10 and 8DJ20
� Switchgear Design• Feeders Type RK, T, LST• Operation• Current Transformers (e.g. in feeder "LST")• Low-Voltage Compartment for 8DJ20• Cable Connection• Interlocks
� Classification According to IEC 62 271-200
� Customer Benefit
Content
Page 5 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Technical Features
� Up to 17.5 kV, 25 kA, 630 A feeders
� Up to 24 kV, 20 kA,630 A feeders
� Factory-assembled, type-tested switchgear according to IEC 62 271-200, metal-enclosed
� Switchgear in block-type construction, non-extendable
� Gas-insulated
� Sealed
Page 6 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Customer Benefit
� Environmental independence
� Compactness
� Maintenance-free design
� Personal safety
� Operational safety, reliability
� Economy, ecology
Page 7 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
General Information
� Market introduction: 8DJ10 since 1982 ( gas-insulated systems 8DJ20 since 1993 conquer the market!)
� Successful operation in more than 100 countries until today
� 8DJ gas-insulated switchgear for application in nearly all sectors like Airports & Ports Automotive Buildings
Cement Industries Chemicals & Pharma ContractorsFood & Beverage General Industries HealthcareMining Offshore Industries Oil & GasPaper Industries Semiconductor Steel & Aluminium Utilities Transportation & Railways Windfarms
� More than 128,000 8DJ switchgear assemblies (at the end of 2008) delivered
� Our experiences are based on more than 565,700 delivered gas-insulated feeders 8DJ and 8DH
Page 8 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Typical UsesSwitchgear Types 8DJ10 and 8DJ20
� 8DJ10…the smallest switchgear
� 8DJ20…the most versatile switchgear
Common features
� Climate-independent and maintenance-free
� Standard switchgear design for vessels, switching devices and cable connection
� Standard operation
� For all applications
� Shortest delivery times
Page 9 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Typical Uses8DJ10 Switchgear
8DJ10…the narrowest switchgear
� For any kind of substations:• Compact substations• Masonry-enclosed rural substations,
e.g. for wind generators• Garage and vault substations
� Connection for transformer cables: top
� 3 versions/schemes with ring-main (RK) and transformer (T) feeders (schemes 10, 62, 71)
� 2 overall heights: 1360 and 1650 mm
Page 10 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Typical Uses8DJ20 Switchgear
8DJ20…the most versatile switchgear
� For any kind of substations:• Compact substations• Masonry-enclosed rural substations, e.g. for
wind generators• Garage and vault substations
� Connection for transformer cables: from the front (bottom)
� 13 versions/schemes with ring-main (RK) and transformer (T) feeders
� 4 schemes with circuit-breaker feeders
� 3 overall heights: 1200,1400 and 1760 mm
Page 11 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Technical Data
630up to ARated normal current for busbar
20
20
25
20
25
20
25
20
25
20
up to kA
up to kA
Rated short-time withstand current, 1 s
3 s
630up to ARated normal current for feeders
20
50
50
125
50
50/60
24
25
63
63
95
38
50/60
17.5
25
63
63
95
36
50/60
15
25
63
63
75 *
28 *
50/60
12
IP65Degree of protection Primary part (main circuit)
200ARated normal current for transformer feeders
25up to kARated short-circuit breaking current
63up to kARated short-circuit making current
63up to kARated peak withstand current
60kVRated lightning impulse withstand voltage
20kVRated short-duration power-frequency withstand voltage
50/60HzRated frequency
7.2kVRated voltage
* 42 kV / 95 kV according to some national requirements
Page 12 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ10
710 mmSwitchgear width:
2 ring-main feeders,1 transformer feeder
Scheme 10 (2RK+1T)
1410 mmSwitchgear width:
4 ring-main feeders,2 transformer feeders
Scheme 62 (4RK+2T)
1060 mmSwitchgear width:
3 ring-main feeders,1 transformer feeder
Scheme 71 (3RK+1T)
Height shown: 1650 mm
Page 13 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: Standard Schemes
1060 mmSwitchgear width:
2 ring-main feeders, 1 transformer feeder
Scheme 10 (2RK+T)
1410 mmSwitchgear width:
3 ring-main feeders,1 transformer feeder
Scheme 71 (3RK+T)
710 mmSwitchgear width:
1 ring-main feeder,1 transformer feeder
Scheme 20 (1RK+T)
Height shown: 1400 mm
Page 14 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: Standard Schemes
710 mmSwitchgear width:
1 ring-main feeder with radial cable connection
Scheme 02 (1RK)
1060 mmSwitchgear width:
3 ring-main feedersScheme 32 (3RK)
710 mmSwitchgear width:
2 ring-main feedersScheme 11 (2RK)
Height shown: 1400 mm
Page 15 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: Standard Schemes
1410 mmSwitchgear width:
4 ring-main feedersScheme 70 (4RK)
1760 mmSwitchgear width:
5 ring-main feedersScheme 84 (5RK)
Height shown: 1400 mm
Page 16 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: Radial Transformer Feeders
510 mmSwitchgear width:
1 transformer feeder,1 radial cable connection
Scheme 01 (1T)
710 mmSwitchgear width:
1 radial cable connection(option:with make-proof earthing switch),1 transformer cable connection
Scheme 21 (1K(E)+1T)
Height shown: 1400 mm
Page 17 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: With Disconnecting Circuit-B reaker
Height shown: 1400 mm
710 mmSwitchgear width:
1 ring-main feeder,1 circuit-breaker feeder
Scheme 20 (1RK+1LST)
710 mmSwitchgear width:
1 radial cable connection(option:with make-proof earthing switch),1 circuit-breaker feeder
Scheme 21 (1K(E)+1LST)
Page 18 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Product RangeSwitchgear Type 8DJ20: With Disconnecting Circuit-B reaker
Height shown: 1400 mm
1060 mmSwitchgear width:
2 ring-main feeders,1 circuit-breaker feeder
Scheme 10 (2RK+1LST)
1410 mmSwitchgear width:
3 ring-main feeders,1 circuit-breaker feeder
Scheme 71 (3RK+1LST)
Page 19 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Panel Design 8DJ10 Switchgear
HV HRC fuse assembly
Operating mechanisms forthree-position switch:
- Spring-operated/ stored-energy mechanism
- Spring-operated mechanism
Hermetically weldedstainless-steel vessel
Three-position switch-disconnector
Bushing as interface type “A” for cable plug with plug-in contact
Bushing as interface type “C” for cable plug with bolted contact (M16)
Pressure relief
T feeder RK feeder
Page 20 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Transformer-feeder (TR)
Ring-main Feeder (RK)
Low-voltage compart-ment (if appl.)
Switchgear vessel, hermetically welded,with switching device
Operating mechanism
Cable connection
Bushings
Panel Design 8DJ20 Switchgear
Pressure relief
Three-position switch-disconnector
HV HRC fuse assembly
Circuit-breaker feeder (LST) (with disconnecting circuit-breaker)
Page 21 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Operation of Three-Position Switch in Ring-Main Feeder (RK)
Ready-for-service indicator
Actuating opening forearthing switch
Option:Short-circuit indicator
Switch position indicatorfor earthing switch
Switch position indicatorfor switch-disconnector
Option:Locking device
Type plate
Interlock of cable compartment cover
Actuating opening forswitch-disconnector
Capacitive voltage detecting system (plug-in)
Page 22 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Operation of Three-Position Switch in Transformer Feeder (T) in 8DJ20
Interlock for HV HRC fuse assembly
Ready-for-service indicator
Switch position indicatorfor earthing switch
Switch position indicatorfor switch-disconnector
Capacitive voltage detecting system (plug-in)
Type plate
Actuating opening forearthing switch
Option:Locking device
Interlock of cable compartment cover
Actuating opening forswitch-disconnector
Page 23 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Operation of Three-Position Switch in Transformer Feeder (T) in 8DJ10
Interlock for HV HRC fuse assembly
Ready-for-service indicator
Switch position indicatorfor earthing switch
Switch position indicatorfor switch-disconnector
Capacitive voltage detecting system (plug-in)
Type plate
Option:Locking device
Actuating opening forswitch-disconnector
Actuating opening forearthing switch
Page 24 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Operation of Disconnecting Circuit-Breaker in Circuit-Breaker Feeder (LST) in 8DJ20
Capacitive voltage detecting system (plug-in)
Option:Locking device
Actuating opening forcircuit-breaker
Actuating opening forearthing switch
Switch position indicatorfor earthing switch
Switch position indicatorfor circuit-breaker
Interlock of cable compartment cover
Indications:“CLOSED”“OPEN”“Circuit-breaker tripped”
Page 25 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Current Transformers in Circuit-Breaker Feeder (LST) in 8DJ20
Ring-core current transformers
� As cable-type current transformers
� Free of dielectrically stressed cast-resin parts (due to design)
� Climate-independent
� Secondary part accessible outside the enclosure without danger
Page 26 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Current Transformer Designs for Circuit-Breaker Feeder (LST) in 8DJ20
Features
� Protection transformers for digital protection systems (option: measuring core)
� Climate-independent
� Ring-core current transformers –free of dielectric stress
� Cable-type current transformers type 4MC70..
� 4 overall heights available(depending on core data)
Page 27 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Low-Voltage Compartment8DJ20 Switchgear
� Height : 400 mm (standard)600 mm (option)900 mm (option)
� For circuit-breaker feeders type LST or RK feeders (depending on customer-specific requirements, e.g. telecontrol systems)
� Bus wires and control cables plugged in (via 6 or 10-pole coded module plug connectors)
� Customer-specific secondary equipment
� Wiring in H07VK (standard), options possible
Page 28 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Low-Voltage Niche 8DJ20 Switchgear
� Customer connections to terminal strip/devices in operating mechanism box
� Niche inside the panel
� With metallic partitions towards the transformer connection compartment
� Suitable for terminals and/or secondary fuses
Page 29 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Cable ConnectionFeeder Types RK, K, LST
� Bushings with outside cone (EN 50 181)
� Cable feeders (RK, K, LST): With bolted contact M16 (630 A), interface type “C”
� Maintenance-free due to welded bushing
� Option: Cable clamps
As-delivered Examples
Page 30 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Cable ConnectionTransformer Feeder (T) in 8DJ20 Switchgear
� Bushings with outside cone (EN 50 181)
� With plug-in contact (200 A), interface type “A” (cross-section up to 120 mm2)
� Option for 8DJ20: With bolted contact M16 (630 A), interface type “C”
� Option: Cable clamps
As-delivered Examples
Page 31 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Cable ConnectionFeeder Types RK, K, LST
Standard Option for feeders (z. B. LS1, LS2, RK, RK1, K)
� With cable compartment cover flush with operating front depending on make and type of cable plugs
� Deep cable compartment cover:for other cable plugs (depending on manufacturer/type) for plug-in surge arresters at the feeder
K+Ü
� Bushing with outside cone (bolted contact)
� Access only with feeder earthed
K+K
Page 32 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Feeder Earthing
� Make-proof earthing with the three-position switch by switching to “EARTHED” position
� No interlocks required
� Only in “EARTHED” position Opening of cable compartment
� Standardized operating concept for all panels
� Option: Locking device
� “EARTHED” function also in circuit-breaker feeder LST
EARTHED
OPEN
CLOSED
Page 33 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Cable Testing without Removing the Cables
Measuring bolt
Insulating cap
� Cable test with - DC voltage- AC voltage
� Maximum values of test voltage *:- for Ur 12 kV: = 48 kV VLF 0.1 Hz ~ 19 kV- for Ur 24 kV: = 70 kV VLF 0.1 Hz ~ 38 kV
� Three-position switch in OPEN position
� Full operating voltage at the busbar (or at the 2nd RK feeder) possible
* Observe recommendation and maximum values of cable or cable plug manufacturers
Page 34 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Interlocks (Selection)
Interlocks are designed according to IEC 62 271-200
Standard interlocks
� Three-position switch-disconnector against earthing switch – mechanical
� Cable compartment: Only accessible with “feeder earthed”
� HV HRC fuse replacement: Only accessible with “feeder earthed” (T feeder)
Additional interlocks (option)
� Locking devices for three-position switch
� Closing lock-out: Prevents switching the three-position switch-disconnector from “OPEN” to “CLOSED” when the cable compartment cover is removed
� De-earthing lock-out in T feeder: Prevents “de-earthing” the three-position switch-disconnector (switching from “EARTHED” to “OPEN”) when the cable compartment cover is removed
Page 35 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Classification According to IEC 62 271-200
Partition class: PM
Loss of service continuity category:� Panels with HV HRC fuses: LSC 2A� Panels without HV HRC fuses: LSC 2B
Accessibility of compartments:� Busbar compartment: non-accessible� Switching-device compartment: non-accessible� Low-voltage compartment (option for 8DJ20): tool-based� Cable compartment for switchgear:
• without HV HRC fuses: interlock-controlled• with HV HRC fuses : interlock-controlled
Internal arc classification:(Option acc. to IEC 62 271-200) 7.2 kV to 24 kV� Wall-standing arrangement: IAC A FL 21 kA 1 s (maximum)
Page 36 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Customer Benefit
� Environmental independence
� Compactness
� Maintenance-free design
� Personal safety
� Operational safety, reliability
� Economy, ecology
Page 37 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Environmental Independence
Our solutionWelded without seals,no diffusing humidity
Stainless-steel vessel,long-time corrosion-resistant
Laser-cut, laser-welded materials,exactly fitting quality
Welded stainless-steel metal bellows,for transmission of operating power
System-conforming, shock-proof connection systems
Integral, highly sensitive leakage detection system in the factory,sealed for life
Non-contact and non-sealed transmission of capacitive voltage detecting system
Your benefitInsensitive to aggressive environments (salt water, tropical areas, dust, humidity, chemical pollutants),no oxidation of contacts and bolted joints, no condensation,no pollution layers on insulators, no resinifying grease
Continuous insulation quality
No ingress of foreign bodies, small animals
Independent of site altitudewith the corresponding product range (schemes)
Page 38 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Compactness
Our solutionSF6-insulation,compact construction
Switchgear with up to 6 feeders
Combined disconnector and earthing switch,compact switch design
User-friendly cable connection height
Different switchgear heights for any kind of compact substations
Your benefitMinimum space requirements, building volume saved: Up to 38 % at 12 kV, 43 % at 24 kV, efficient use of existing rooms, reduced volume for new constructions, compact design reduces transport and installation costs to a minimum
Application for smallest compact substations
Economic use of space in urban areas,installation in conurbation, load centres to minimize transmission losses
Page 39 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Maintenance-Free Design
Our solutionHermetically welded stainless-steel enclosure,stable, defined environmental conditions within the vessel
Maintenance-free switching devices and operating mechanisms,no adjustment and lubrication
“Integrated” busbar,constant insulation and service conditions,no oxidation and pollution layers
Enclosed cable plugs,screened, independent of the environment
Suitable transformer designs,ring-core current transformers
Your benefitNo gas work during installation or extensions,no repeated SF6-training required for personnel
Maximum reliability of supply and availability,no shutdowns for maintenance
Sealed for lifetime(according IEC 62 271-200 and IEC 60694 / 5.15)
No maintenance costs,minimized operational costs
Highly economic investment
Page 40 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Personal Safety
Our solutionHermetically welded enclosure
Internal arc classified according to IEC 62 271-200 for 1 s (option)
Logical mechanical interlocks
Capacitive voltage detection system
Make-proof earthing throughthree-position switch disconnector or three-position disconnecting circuit-breaker
Your benefitTouching of live parts excluded,extremely high degree of protection of the primary part
Accidental opening of vessel excluded
Access to switching devices not required due to maintenance-free design
Maloperation excluded
Verification of safe isolation from supply without opening the enclosure
Simple, standardized operating concept
Page 41 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Operational Safety, Reliability
Our solutionHermetically welded enclosure, welded stainless-steel metal bellows
Current transformers outside the vessel
Modular design
Minimum use of insulating material
Type and routine tests, quality management
NC production processes
Partition class PM
Your benefitIndependent of the environment, maintenance-free,no condensation, no oxidation
No dielectric and dynamic stress for current transformers
Fast transformer replacement possible
Easy installation and extension without gas work,short shutdown time for extensions or panel replacement
Easy and fast panel replacement
Reduced fire load
MTBF (4,977 years at the moment)
Page 42 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
Economy, Ecology
Our solutionMaintenance-free switchgear
Compact constructionswitchgear for all customer requirements
Economic production
SF6 only used in hermetically sealed pressure system
100 % SF6-recycling by means of special tools
Identified, recyclable insulating material
Listing of all materials used
Your benefitMinimized operator expenses, high availability
Reduced transport costs
Minimum requirements regarding the building
Minimized transmission losses by installation in load centres
Reliable, calculable disposal
Page 43 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
8DJ Switchgear Typical Application Examples
Page 44 October 1st 2008 Energy Sector / E D MV 28DJ
© Siemens AG 2008
MTBF
The term major failures and minor failures are taken from the CIGRE publication of the work group 13.06 “Reliability of High Voltage Switchgears”.
Definition:
� MTBFMeantime between failure
� Major failure (MF)Complete failure of a panel which causes the lack of one or more of its fundamentalfunctions.NOTE: A major failure will result in an immediate change in the system operating e.g. the backup protective equipment being required to remove the fault, or will result in mandatory removal from service for non scheduled maintenance (Intervention required within 30 minutes).
� Minor failure (mF)Failure of a panel other than a major failure or any failure, even complete, of a constructional element or a sub-assembly which does not cause a major failure of the panel.
� MTTFMeantime to failure