HV Circuit Breakers
description
Transcript of HV Circuit Breakers
customersst
HV Circuit Breakers
customersst Siemens Fills The Order
Siemens has been a leader in SF6 circuit breaker technology for over 40 years.
Breaker products:− Dead tank breakers− Live tank breakers− Vacuum breakers− GIS− Circuit switchers− Reclosers− MV and HV Arrester
ProductsPTD H 3 World Headquarters in Berlin
customersst Over 30 Years Experience in
Jackson1973 – Plant opened as Allis Chalmers (Moved from Boston)
− Began production of SDO, BZO, GHO, TDO Breakers1978 – Became Siemens Allis1982 – Replace GHO with 3AT1985 – Purchased SP Breaker from Westinghouse to
replace TDO− Began Voltage Regulator Production
1992 - Began SPS1994 – Began Mfg. of TCP Design to replace BZO
− Began Mfg. of SDV to replace SDO1995 –Began Candlestick type Circuit Switcher production (CPV)1996 – Replaced TCP Design with SPS1-1451998 – Replaced SP / SPS / SPS1 with new SPS2 design1999 - Replaced TCP-245 with SPS2-2452000 – Replaced CPV with new CPV2 DesignPresent – SPS2, CPV2, Single and Three Phase Voltage Regulators,
Reclosers, Surge Arrestors
customersst
World Wide Dead-Tank Breaker Center Of Competency
SPT&D’s Jackson, Mississippi operation
Over 30 years of power circuit breaker development, manufacturing and service
State-of the-art circuit breaker manufacturing
Four dedicated assembly lines2 – SPS2 Circuit Breakers : 15.5 – 245 kV 1 – CPV2 Circuit Switchers : 72.5 – 245 kV1 – EHV Live Tanks : up to 800 kV1 – Voltage Regulating Transformers
Continuous improvement through Kaizen techniques
customersst Siemens Fills The Order
World leader in development and manufacturing of transmission & distribution equipment
ISO 9001:2000 registered quality system
Tested to ANSI and IEC standards in the world’s largest, privately owned, electrical laboratory
Over 30,000 dead and live tank sold worldwide – 10,000 SPS-2’s from USA
customersst
In a survey conducted by Frost & Sullivan, end users, developersand resellers considered Siemens PTD breakers as the highest quality breaker in the market in the 72 kV to 800 kV voltage range.
Market participants familiar with a range of high voltage breaker products cited Siemens PTD breakers, more than any other, as superior in terms of both product design and workmanship.
2005 Product Quality Innovation Award
customersst SPS2 / CPV2 “The Right Choice”
Design Commonality
Increased Operating Life
Quick and Easy Installation
Minimal Maintenance
No Field Adjustments
Lower Cost of Ownership
Retrofitable Design
Added Value
customersst SPS2 Circuit Breakers
Available 15kV – 245kVProven, global components− FA2 and FA4 Mechanisms− 3AP arc-assist interrupter
Seismically qualified to IEEE 693 for ‘ High ‘ performance
Rupture Disks for each interrupter
Copper / Stainless Steel Gas Manifolds
Porcelain / Composite Bushings
Direct replacement for oil circuit breakers (end control cabinets)
customersst CPV2 Circuit Switcher
Low cost protection device
Proven, global components− FA2 and FA4 Mechanisms− 3AP arc-assist interrupter
Designed & Tested for capacitor bank switchingContinuous current rating 1200 – 3150 amps.Interrupting rating up to 40 kA3 cycle operationWide variety of phase spacing and heightsVirtually no maintenance
customersst CPV2 Circuit Switcher
Meets the requirements of ANSI C37
Seismically qualified
Leak rate <1% per year
6000 mechanical operations
3000 operations at 6kA
18 full faults at 40kA
Ease of installation
No field adjustmentsIntegral accessories:
− visible disconnect switch− Hook stick operated bypass switch
customersst SPS2 Performance Features
Up to 63kA without capacitors (145kV and below)
Up to 68kA at 245kV
Up to 4000 Amp Continuous Current
10,000 mechanical operations
3,000 operations at 6kA
18 full faults at 40kA
Leak rate <1% per year
Up to -30 º to 55 º C without tank heaters
customersst Siemens Experience : The 3AP
interrupter
Over 90,000 pole units installed throughout the world
Superior performance− 18 full faults− 6000 operations at 6kA− 10,000 mechanical operations
No solid insulation across contacts
Increased dielectric strength across interrupters
customersst FA2/4 Mechanism
Proven performance in the field
30,000 installations worldwide
Tested to 20,000 operations or 10,000 Close-Open operations
Used on Siemens live tank and dead tank breakers, GIS and circuit switchers
customersst SPS2 - Options
Up to 18 current transformersMetering / Relaying accuracy CT’sExtra creepage bushingsComposite bushingsHigh seismic withstandExternal pull to trip handleRelays for reclosing or non-reclosing applications
customersst New / Future Offerings
− Increase kA Rating with higher low ambient
− Solon 2TC Density Switch
− Synchronous Close
− 550kV Dead Tank
− Polymer Bushing for 230kV, 3000Amp
− Low Temp. Ratings to -50°C
customersst Controlled Switching
Ungrounded Capacitor bank
+
SPS2X_US PSD Controller
customersst Synchrounous Close - Main functions
Output of controlled (synchronous) switching commands to the closing coil of the circuit breaker
Reduction of the inrush currents −Decreasing of the mechanical and electro-magnetic stresses of the operational equipment -> increasing of their life time
Minimising of overvoltages−Decreasing of the dielectric stress -> lower ageing−Substitution of closing resistors -> higher reliability
customersst Circuit Breaker Type SPS2X_US
One MechanismOne gear box located between A- and B- phase operating linkageTwo phases close at the same time, one phase mechanically staggered
Available on:SPS2 72.5/40 USSPS2 145/40 USSPS2 145/63 USSPS2 245/63 US
customersst
Control of the Closing Instant
PSD Controller receive a closing command related to Voltage Zero CrossingPSD Controller calculate delay time depending on:− Arcing Time− Mechanical closing Time− Control Voltage− Ambient temperatureAdaptive Mode− PSD Controller calculate the standardized mechanical operating time of the last
3 switching operations , using weighting factors for each 3 previous operations for the next switching operation to be configured automatically.
− The basis for the functioning of the adaptive control is the reference contacts located on each phase operating lever. The reference contact signal indicate a change to the CB switching position.
Operate in case of sensor failure− If not all conditions for successful control of the switching instant are met, the
PSD can be configured to: Not forward a command or Operate in any case.
PSD Functions
customersst
New 550 kV Design
customersst
Common Circuit-Breaker Design
for: GIS/HIS/Dead-Tank
Platform 550 kV Circuit-Breaker GIS/HIS/Dead-Tank
customersst
Platform 550 kV Circuit-Breaker 3AP2/3 Dead-Tank
Porcelainbushing
Currenttransformer
Circuit-breaker
Spring operator
8240
(324,4)
5600
(220,5)
3570
(140,5)
customersst Platform 550 kV Circuit-Breaker 3AP2/3 Dead-Tank
8570
(337)
5750
(226,4)
Compositebushing
Currenttransformer
Circuit-breaker
Spring operator
3540
(139,4)
customersst
Platform 550 kV Circuit-Breaker 3AP2/3 Dead-Tank with Closing Resistors
Capacitor Interrupter unit Rupture disc
Filter materialClosing resistor
customersst
Surge ArrestersStation and Distribution
customersst
Surge ArrestersIntroduction and General Information
Experience of more than... 75 years with surge protective devices25 years with metal-oxide surge arresters 15 years with polymer (silicone) insulated high-voltage arresters
Porcelain, polymer (silicone) and GIS arresters up to 800 kV
Special applications for ...SC, SVC and HVDCseismic, heavy wind loads or heavy pollution conditions customer specific designs, e.g. mounting configuration, etc.MV such as plug-in arresters, traction vehicles, generator protection, limiters
Developing, manufacturing and testing in accordance with international standards as IEC and ANSI
Certified QA accreditation to ISO 9001
customersst
High Voltage Arresters up to 800 kV Series 3EL, 3EP, 3EQ, 3ES
3EP4 3EP2 3EP3 3EQ1 3EQ3 3ES2 3ES5 3ES7,3ES9
3EQ4
3EX5 0303EX6 040 3EX5 0503EX5 060/62
3EL2
Silicone (tube design)
Porcelain GIS
Monitoring Devices
Silicone(cage design)
customersst
Low- and Medium Voltage ArrestersSeries 3EA, 3EB, 3EC, 3EE, 3EF, 3EH, 3EK
3EA1 3EF1...5 3EC33EE2 3EK7 3EB1 3EB2
RailwayDistributionLow voltage and motor/generator protection
customersst
Polymer Housed Surge Arresters for High VoltageComparison of Design Principles
SIEMENS „3EQ“ SIEMENS „3EL“
„Tube Design“ „Cage Design“ „Wrapped Design“Competition
customersst
Silicone Housed Surge Arresters for High VoltageType 3EL with directly moulded LSR Housing
Column of MO resistorstotally surrounded by silicone
Silicone rubber housingdirectly moulded onto theactive part
Cage of 8 FRP rodsas reinforcement structure
„Cage Design“
customersst
Silicone Housed Surge Arresters for High VoltageType 3EL – Design Principle: „Cage Design“
customersst
Silicone Housed Surge Arresters for High Voltage3EL - Comparison of Cantilever Strength
Rated Cantilever Strength ( inch-lbs)
3EL arresters are up to 2 – 3 times strongerthan other polymer designs!
Siemens Ohio Brass ABB
3EL2 PVN * PEXLIM
WORKING 24,782 10,000 – 3,000 7,000 – 22,125
ULTIMATE 35,400 20,000 – 5,000 11,500 – 35,400
* JOINTS BETWEEN THE RUBBERS – POOR MECHANICALS -- HIGH DEFLECTION
customersst
Silicone Housed Surge Arresters for High VoltageType 3EL - Specification
Duty Cycle Rating Ur 192 kV
MCOV Uc 152 kV
Nominal discharge current In 10 kA
Energy absorption capability 10 kJ/kV-MCOV
Pressure Relief Rating 65 kA
TOV - 1 sec, no prior duty 1.475 x MCOV
“Working” Cantilever Strength 24782 inch-lbs
Creepage Distance 301 inches
Standard ANSI / IEEE C62.11
customersst
Silicone Housed Surge Arresters for High VoltageSeries 3EQ - „The Robust One“
3EQ1up to Um = 362 kV
3EQ4up to Um = 550 kV
3EQ3up to Um = 800 kV
„Tube Design“
customersst
Silicone Housed Surge Arresters for High Voltage3EQ – Design Principle: “Tube design”
MO column (ZnO resistors)
Pressure relief ventMaterial: Aluminium
Pressure relief diaphragmMaterial: Stainless steelThickness: 3EQ1: 0,1 mm
3EQ3/4: 0,2 mmOpening pressure: approx. 1 bar
Silicone rubber shedsMaterial: RTV-siliconedirectly moulded onto FRP tube
FRP tube (Fiber glass reinforced plastic) for out-standing mechanical strength
Support for MO columnMaterial: FRP rods
Housing filled with nitrogento avoid oxygen (causing moisture)
customersst
Silicone Housed Surge Arresters for High Voltage3EQ - Silicone Bonding to Flanges and FRP-tube
The silicone rubber is directly moulded onto the FRP-tube and the aluminium flanges.
1 ... Aluminium flanges2 ... Silicone rubber3 ... FRP-tube
1
23
1
2
3
customersst
Silicone Housed Surge Arresters for High Voltage3EQ - Comparison of Cantilever Strength
3EQ arresters with tube design are more than 6- 8 times strongerthan other polymer designs!
Rated Cantilever Strength ( inch-lbs)
Siemens Ohio Brass ABB
3EQ PVN * PEXLIM
WORKING 37,000 –260,000
N/A 22,125
ULTIMATE 53,000 –370,000
N/A 35,400
* NO HIGH STRENGTH POLYMER DESIGN AVAILABLE
customersst
Silicone Housed Surge Arresters for High VoltageComparison: Short Circuit and Overload Performance
3EQ (tube design) 3EP Cage Design
Before the test
After the test
Successful
Successful
3EP3EQ Cage Design
Arc burns through silicone
No mechanical structure left
customersst
Silicone Housed Surge Arresters for High Voltage3EQ in a Seismic Shake Table Test
3EQ4 306-3PN4(≈ Um = 420 kV)
3EQ4 442-5PN5(≈ Um = 550 kV)
3EQ1 156-2PN3(≈ Um = 170 kV)
3EQ4 234-3PN4(≈ Um = 300 kV)
Test conditions in accordance with IEEE 693:• time history test• 1·g ground acceleration• max. 50% of specified mechanical stress
customersst
Benefits of SIEMENS Surge Arrester DesignsMinimizing number of segments per arrester
SIEMENS CompetitionExample left side (SIEMENS):3EQ with 2 segments for up to 550 kV system voltage
Example right side (competition):4 units per stack for the same voltage level orarrester with additional insulators for stabilisation ormultiple segment arrester built up with MV arresters
Minimizing the number of segments per arrester means:
more stability = higher mechanical cantilever strength
less segments to mount = less installation time
--> less installation costsless danger of moisture ingress between flangesbetter voltage distribution
all in all:The lower the number of segments per arrester stackthe better the electrical and mechanical performance is.
customersst
Arrester Monitoring DevicesTypes 3EX6 040, 3EX5 030, 3EX5 050, 3EX5 060/62
Control Spark Gap
3EX6 040
Surge Counter with leakage current meter
3EX5 050
Surge Counter
3EX5 030
Arrester monitor with remote indication
3EX5 060/062
customersst
Voltage Regulators
customersst
JFR (Single Phase)
2.5 kV to 19.9 kV, 38.1 kVA to 889 kVA,
50/60 Hz Applications
+ / - 10 % Regulation in 32 Steps
Equipped with Controller (MJ-XL)
customersst Voltage Regulator - Applications
Pole MountedPlatform MountedSubstation
customersst Three Phase Regulators
SFR - 4330 V - 34500 V
500 kVA – 4000 kVA
Smaller foot print compared
to three single phase units
customersst
Three Phase (SFR) Three Phase (SFR-X)
Tap changer in separate compartment
customersst Modern Control Panel
customersst What a Control Panel Does ?
• Functionality
• Advanced Metering• Superior Data Logging• Intuitive User Interface• Powerful Communications• Continuing Enhancements
It senses parameters like Voltage, Current, Power Flow direction and provides commands to the tap changer of VR. Additionally, the modernmicroprocessor based controllers are providing efficient communication, Energy Management and diagnostics capabilities to the power companies.
customersst Advanced Metering
• Instantaneous Voltages, Current, & Power• Demand Voltages, Current, & Power• Minimum/Maximum Time Stamps to the second• Energy Readings • Support for 3-Phase Calculations• Harmonics Displays to the 31st harmonic
customersst Superior Event Logging
• Multiple “Event Types”• Tap Change, Tap at Neutral, Tap
raise/lower to NN position, VLC/VRCactive, Power Flow reversal, Configuration change,
• Precise time stamping
• High capacity (200 events)
• Critical data storage
• Non-volatile data storage
customersst Multiple Alerting
• Metering
• Tap Tracking
• Remote Control
• Controller Error
customersst Intuitive User Interface
• Menu-Driven
• Easy - to -read Displays
• Simple Menu Navigation
• Single Keystroke for Frequently accessed Functions
customersst Data Port Communications
• Use Industry-accepted Protocol
• Retrieve Data & Status
• Configure the panel
• Select Parity & Address
• Connect with off-the-shelf Cables
• Use off-the-shelf Modems
customersst Control Panel - Communication Modules
Radio Integration via wireless communication (Cell Phone)
Fiber Optic Communications Port
RS232/RS485 Communications Port
customersst Cost Saving – An example
Communication Module can provide
− Reduced frequency of site visits− Data available instantaneously – Preventive
maintenance instead of emergency work− Use software capability to safely overload VRs
up to 60 %− Use available data to planning purposes− Check power quality while sitting in your office− Control Peak Loads (TO AVOID PENALTIES)
and Reduce Voltage
customersst Firmware upgrades
Use of a specially developed “Flash Loader”
customersst Questions?