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Therefore, in the case of three SF₆ pressure or density sensors used on three separate poles, the Total Weight of SF₆ Gas given on
the nameplate must be divided by three. 360 ÷ 3 = 120 lbs. See Figure 29.

Figure 28

– Fill Weight for IPO Breakers

Terminal to Terminal Circuit Breaker Open.................1300 KV

Total weight of breaker w/ gas............29707 lbs.............13475kg
Total weight of SF6 gas ............................ 360 lbs.............13475kg

Normal SF6 gas pressure at 20° C........ 80.0 PSIG.........0.55 MPaG
Alarm SF6 gas pressure at 20° C...........75.5 PSIG........ 0.52 MPaG
Minimum SF6 gas pressure at 20° C.....72.5 PSIG........0.50 MPaG

SF₆ GIL (GAS INSULATED TRANSMISSION LINE) APPLICATION

Optimizer3 is a useful SF₆ gas monitoring system for GIL. There are 8 sensor inputs which all may be used for SF₆ density or
pressure measurement, using analog Temperature-Compensated sensors.

Figure 29

– Gas Insulated Line (GIL)

In Figure 29, a three-pole GIL was monitored. Each pole was made up of two SF₆ gas zones. An SF₆ gas density sensor is installed on
each riser, making up a total of 6 gas zones. The GIL manufacturer supplies the following information:

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Содержание incon OPTIMIZER3

Страница 1: ...incon OPTIMIZER3circuitbreakermonitor user guide ...

Страница 2: ...entary information IMPORTANT This provides instructions to avoid damaging hardware or a potential hazard to the environment for example fuel leakage from equipment that could harm the environment CAUTION This indicates a potentially hazardous situation that could result in minor or moderate injury if not avoided This may also be used to alert against unsafe practices WARNING This indicates a poten...

Страница 3: ...unications Software 14 Self Diagnostics 14 Specifications 15 Installation 16 Mounting 16 Current Pickup Coils 18 Navigation 18 SF Gas Monitoring 24 SF Parameter Set Up 25 SF Alarm Settings 26 SF GIL Gas Insulated Transmission Line Application 27 Pressure Density Trend Forecast Planning Alarms 29 Low Gas Alarm Forecast Forecast Planning Alarm 29 Other Sensor Monitoring 30 Temperature Monitoring 30 ...

Страница 4: ...es 38 Choosing the Desired Operating Mode 40 Mode 1 40 Mode 2 42 Mode 3 43 Mode 4 44 Mode 5 46 Mode 6 49 Mode 7 51 Velocity Average Velocity Measurements 52 Current and Voltage Logging 54 Use of AUX Inputs for control circuit status monitoring 55 DNP3 0 56 Programming for DNP3 56 DNP3 Behavior 58 Flag Behavior 58 Value Behavior 58 Time Stamps 58 Units Conversion 59 ...

Страница 5: ...y and environmental needs This must be done prior to commencing work and prior to recommencing work after leaving and returning to the worksite As a minimum this hazard assessment should Identify possible hazards and risks Identify the safety needs of the job Identify the correct procedures practices and equipment Eliminate unsafe conditions and actions from the worksite Identify the need for pers...

Страница 6: ... technicians have no access to the control building where the protective relays are located If it is not possible to locate the Optimizer3 in the control cabinet then it may be installed in the control building Most often this decision is based on access to communication links or SCADA RTU access For use as a SF only monitor such as for monitoring compartments of GIS or SF insulated bus the Optimi...

Страница 7: ...mperature analog 4 20 mA The Optimizer3 uses these measured attributes to calculate other user defined properties in desired units Optimizer3 calculates density pressure trends trend rates changes in mass etc Most attributes can be compared to static alarm settings for assertion when they go out of tolerance Optimizer3 issues alarms via contacts through DNP3 0 points and via HTTPS web service loca...

Страница 8: ...g recommended Sensor 5 Sensor 4 Sensor 3 Sensor 2 Sensor 1 Sensor 5 Sensor 4 Sensor C Sensor B Sensor A Sensor inputs A B and C are dual function They accept either 2 wire 4 20 mA analog sensors or 2 wire Sensors with a Proprietary Digital Protocol Sensor inputs 1 5 are 4 20 mA analog only and do not accept the digital protocol For each 4 20 mA analog sensor there is a corresponding setup area in ...

Страница 9: ... 50 or 60 Hertz power systems The split core Pickup Coils snap on over existing insulated bushing CT secondary circuits without tools and are rated 1 0 accuracy and 0 05 VA burden at 5 amps Removal or disruption of bushing CT circuits is not necessary Although referred to as a CT these are sensors that give 0 5 VAC output for 0 to Full Scale current CONTROL INPUTS The use of each input is determin...

Страница 10: ...ower supply legs are fused If external fuses are used 3 15 amp slow blow are recommended Power input leads are isolated from chassis and are floating and not referenced to ground Ground connection is internally connected to the metal chassis It is recommended that the ground be connected to the station ground or ground bar inside the circuit breaker cabinet Follow the electrical grounding standard...

Страница 11: ...Digital Inputs are AUX input channels that are unused depending upon the Input Mode being used see page 38 There may be only one or two to choose from When the AUX input is energized the relay will be asserted If the Relay Input is an Alarm it can be left in a generic mode allowing any alarm to assert the relay If only specific alarms are desired to assert the relay further programming is needed t...

Страница 12: ...tion page Figure 8 Reset Latched Relay COMMUNICATION PORTS Communication ports are used for Configuration of alarms and settings history data retrieval resets data viewing and data transfer using DNP3 0 protocol RS 485 is half duplex This port is used for DNP3 communication only No user interface actions can be done through this port If the Optimizer3 is the last device in the network a wire jumpe...

Страница 13: ...ously When connected to a secure local area network the Optimizer3 can be accessed remotely with a web browser by using its unique IP address Firmware upgrades can be performed locally or remotely via this port using the INCON upgrade tool Ethernet 1 Copper Default IP Address is https 192 168 168 168 Ethernet 2 Fiber Default IP Address is https 192 268 169 169 100 Mbps ST Connection The Ethernet 2...

Страница 14: ...n an IP address to a computer from a defined range of numbers i e a scope configured for a given network Static IP address may be assigned manually by giving it the XXX XXX XXX XXX number or they may be automatically assigned by pointing the Optimizer3 to a DHCP server that manages a range of addresses and dynamically assigns these addresses COMMUNICATIONS SOFTWARE The Optimizer3 is a web server A...

Страница 15: ...y with capacity of 10 000 Application Events 10 000 Alarm Events 5000 Circuit Breaker Monitoring Events 5000 SF Gas Parameter data points 750 Daily Summary logs 5000 3 phase Line Current measured and scaled from bushing CT secondaries 1000 Line Voltage Measurements as measured at power input 5000 Ambient Temperature Measurements as measured at the monitor Test Standards IEEE C37 10 CISPR 16 2 1 Co...

Страница 16: ...ction air flow If Optimizer3 cannot be mounted horizontally the ambient temperature measured by the sensor may read slightly higher than expected There are two rows of pluggable connectors on the left side and one row on the right side Each plug is fastened by two screws one on each end of each connector These must be tightened during installation to assure the plugs stay engaged and do not come l...

Страница 17: ...sor 1 Output 2 Output 1 Sensor C Sensor B Sensor A AUX 5 AUX 4 AUX 3 AUX 2 AUX 1 RS 485 A A B GND Term Jmp A B GND Term Jmp RS 485 B GND L1 L2 NO COM NC OPTIMIZER3 MOUNTING DIMENSIONS IN INCHES MILLIMETERS NOT SHOWN ACTUAL SIZE 11 1 282 1 5 63 142 9 4 75 120 7 2 93 74 10 36 263 31 8 ...

Страница 18: ...o the CT Pickkup Coils as possible Cut any excess cable from the Pickup Coils It is not recommended to exted the Pickup Coil cables Snap On CT Pickup Coils Non Polarity Sensitive PhaseB Secondary PhaseC Secondary PhaseA Secondary NAVIGATION Optimizer3 functions as a web server The only required software is a web browser Using a browser and the mini USB cable supplied with the unit log into the uni...

Страница 19: ...CBM Status Page Click on Configuration to begin Each category can be individually expanded by clicking on the cell or click on Group to expand all categories Click the Show Errors button Figure 16 Configuration Page ...

Страница 20: ...EN set the time Click the Save button Figure 18 Selecting the Time Zone Set the Time by clicking in the Date Time tab Adjust as needed then click the Set button Figure 19 Setting Date and Time The Optimizer3 system time can be synchronized with an NTP server or from a DNP3 master The NTP server s IP address is specified in the Configuration Page in the Date Time group NTP Servers option Multiple N...

Страница 21: ...ges on the Configuration and Date and Time Pages The Installer has permission to use the Upgrade and Reset Pages The Installer has access to some secret data download pages for debugging The Administrator has full permission to all pages and functions including additional secret diagnostic pages Table 3 Login Level Permissions Guest CBM Sensors Active Events Event History Date Time read only Prefe...

Страница 22: ...t the System Preferences since many other settings will be affected by these choices Figure 21 Selecting Language The details and choices for each parameter are shown by clicking on its cell When setup is complete click Save to keep the changes Figure 22 System Preferences ...

Страница 23: ...units their preferred units of measure can also be entered in the Preferences Page These are Personal Preferences and override the System Preferences in terms of what is seen on screens served from the Optimizer3 to their browser Each user s Personal Preferences are stored in their browser cache Figure 23 Preferences Page ...

Страница 24: ... types is found in the Sensors section of the Configuration page Figure 24 Select Sensor Mode The Optimizer3 can measure density with the DSDP sensor and calculate the equivalent gas pressure It can also measure pressure with the PSDP sensor and calculate the equivalent gas density These calculations are based on entered SF fill weight and fill pressure values taken from the breaker s nameplate A ...

Страница 25: ...ed signal high scale or low scale limits by 2 or more a Sensor Signal Range error will be recorded When the signal from an analog sensor is less than 2 milliamps a Sensor No Current error will be recorded SF PARAMETER SET UP The parameters for SF are set in the Gas Monitor section of Configuration Page The first setting determines which SF measurement type Density or Pressure is to be displayed De...

Страница 26: ...is the Fill Pressure and is 66 7 PSIG the Low Pressure Alarm is 52 2 PSIG and the Minimum Pressure is 47 9 PSIG The Gas Fill Weight is 26 lbs Figure 27 Fill Pressure Setting Example 2 The examples in Figures 26 and 27 apply to circuit breakers with one common SF system using one density sensor For circuit breakers having three independent SF systems one for each pole the settings are slightly diff...

Страница 27: ...IG 0 55 MPaG Alarm SF6 gas pressure at 20 C 75 5 PSIG 0 52 MPaG Minimum SF6 gas pressure at 20 C 72 5 PSIG 0 50 MPaG SF GIL GAS INSULATED TRANSMISSION LINE APPLICATION Optimizer3 is a useful SF gas monitoring system for GIL There are 8 sensor inputs which all may be used for SF density or pressure measurement using analog Temperature Compensated sensors Figure 29 Gas Insulated Line GIL In Figure 2...

Страница 28: ...7 353 67 365 67 Figure 30 Optimizer3 Settings for Gas Insulated Lines SF6 GAS SYSTEM SPECIFICATIONS Compressed Gas Insulated Transmission Bus Fill Pressure is 55 PSIG Warning Alarm is 50 PSIG and Danger Alarm is 43 5 PSIG The Fill Weight is the average of all six compartments since they are all slightly different Fill Weight 701 79 677 14 652 49 701 79 726 44 751 09 6 4211 6 702 0 lbs Nominal Gas ...

Страница 29: ...ning Alarm limit is 180 days The Forecast Planning Alarm adds a user defined number of days to the Low Gas Alarm Forecast to allow for planning equipment preparation and outage scheduling When the SF gas pressure decreases so that the predicted number of days until the Danger Alarm is asserted is equal to or less than the Forecast Planning Alarm the alarm relay can be asserted if desired The alarm...

Страница 30: ...ture measurements Only the analog loop powered 4 20 mA temperature transducers have associated programmable alarm limits When the Temperature sensor mode is selected scaling for the mA current range and temperature range appear High and Low Temperature Alarm Limits appear If an Alarm Limit is set to 60 0 C 76 0 F the alarm is disabled The Low Temperature Alarm Limit is asserted if the measured tem...

Страница 31: ... menu Only the Temperature will be listed in the CSV file when the Ambient sensor or an analog loop powered 4 20 mA temperature transducer is selected Density and Pressure will be blank Figure 33 Exporting Temperature History Log There are DNP points for each temperature sensor type Ambient Analog and Digital sources Figure 34 DNP3 Points for Temperature Sensors Analog Digital ...

Страница 32: ...s less than or equal to the setting The High Voltage Alarm Limit is asserted if the measured voltage is greater than or equal to the setting A hysteresis of 3 volts is applied to an active alarm to reduce nuisance toggling of the alarm The alarm is non latching and clears itself when the measured voltage is between the alarm limits If Yes is selected for Run Time Metrics it is assumed the voltage ...

Страница 33: ...The High Current Alarm Limit is asserted if the measured current is greater than or equal to the setting A hysteresis of 1 one amp is applied to an active alarm to reduce nuisance toggling of the alarm The alarm is non latching and clears itself when the measured current is between the alarm limits If Yes is selected for Run Time Metrics it is assumed the current sensor input is connected around t...

Страница 34: ...Run Monitor Continuous Voltage shown on the Sensors Page 1 Voltage Same as above 2 Today s Average Average voltage since the previous MIDNIGHT logged in database once a day 3 Today s Minimum Lowest measured voltage since the previous MIDNIGHT logged in database once a day with date time stamp when they occurred 4 Today s Maximum Highest measured voltage since the previous MIDNIGHT logged in databa...

Страница 35: ... for heat and measures the current in the main heater circuit The design assumes that all failures of electric heating elements are caused by open circuits If the measured heater current is too low alarm relay can be asserted if desired The alarm status is available as a DNP SCADA point Figure 37 Tank Heater Circuit Figure 38 Heater Monitor Settings Figure 39 Heater Monitor Status In this example ...

Страница 36: ...d pressure is between the alarm limits DEW POINT MONITORING The Optimizer3 monitors moisture with 4 20 mA Dew Point sensors This moisture is expressed as a Dew Point Temperature the temperature at which the water vapor will condense into a liquid The Dew Point sensors can be used to monitor the moisture content of SF gas when plumbed into the SF gas system typically alongside the density or pressu...

Страница 37: ... longer than normal run times Trip Coil or Close Coil exhibiting high forward voltage drop open coil Extended arcing time can result from blast nozzles on puffer circuit breakers that have a high accumulated arcing duty The exposure to hot arcs causes ablation of the Teflon nozzle material so the nozzle diameter gets larger and the velocity of the SF blasted into the arc is reduced with reduced ef...

Страница 38: ...thereby reducing O M expense OPERATING MODES The Optimizer3 has five pairs of control inputs which are connected to specific combinations of open coils close coils auxiliary switches red light bulbs green light bulbs and other control circuit inputs as appropriate for a circuit breaker The DC voltage levels states of these circuit nodes and their transitions are interpreted by the Optimizer3 to pr...

Страница 39: ...39 Figure 44 Circuit Breaker Monitoring Input Modes Continued Optimizer3 Operating Modes Measurements Made Required Wiring Connections Figure 45 Input Mode 5 Logic Chart ...

Страница 40: ...are seven operating modes to select from MODE 1 Figure 47 Selecting Input Mode 1 This choice monitors the state of the 52a and 52b auxiliary switches for the circuit breaker When the 52a changes state the monitor registers an Open operation modifies it by the A Input Delay setting to calculate Contact Duty and records the time ...

Страница 41: ...itches that are wetted by the station battery voltage An equivalent timing signal is to connect in parallel with the Red Light and Green light In both cases the Input Polarity for Red Light 52a is Negative because the voltage level transitions from high to low on the Open operation Similarly the Input Polarity for Green Light 52b is Positive because the voltage level transitions from low to high o...

Страница 42: ...lay which begins the Contact Duty measurement This time duration is called Opening Time given in milliseconds The Opening Time measurement is modified by the A Input Delay Mode 2 is used on older field retrofits when there is no opportunity for connecting to 52b auxiliary switches or Green Light Optimizer3 does not provide any Close operation data in Mode 2 Assign the Opening Coil connection to AU...

Страница 43: ...n be made is to the 52a auxiliary switch or Red Light Assign the 52a auxiliary switch connection to AUX 1 The recommended connection is in series with a wetted spare 52a auxiliary switch Alternate connection may be made in parallel to an in service 52a auxiliary switch or in parallel with the red light bulb Figure 52 Connections Options for Inputs Mode 3 Recommended Connection R L 52a Input Polari...

Страница 44: ...ted as Opening Travel Time given in milliseconds Opening Travel Time is the actual measurement and is not modified by the A Input Delay Circuit breaker Close operations are detected from the 52b auxiliary switch transitioning from closed to open In Mode 4 no timing information is recorded for the Close operation other than a date and time stamp The Optimizer3 pre assigns the control inputs as a de...

Страница 45: ... Options for Inputs Mode 4 Opening Coil Input Polarity Positive Recommended Connection G L 52b Input Polarity Positive Alternate Connection G L 52b Input Polarity Negative Alternate Connection G L 52b Input Polarity Positive ...

Страница 46: ... duration beginning with the falling edge of the Opening Coil pulse 52a auxiliary switch opening and ending with 52b auxiliary switch closing This segment of time is recorded and reported as Opening Travel Time given in milliseconds Opening Travel Time is the actual measurement and is not modified by the A Input Delay When the Closing Coil is energized the monitor registers a Close operation The t...

Страница 47: ...Polarity setting Type In series with wetted spare 52a auxiliary switch Negative Recommended In parallel with in service 52a auxiliary switch Positive Alternate In parallel with red light bulb Negative Alternate The recommended AUX 4 connection is to a spare 52b auxiliary switch that is wetted by the station battery voltage There are other wiring connections which give an equivalent timing signal f...

Страница 48: ...e Recommended Connection R L 52a Input Polarity Negative Alternate Connection R L 52a Input Polarity Positive Alternate Connection R L 52a Input Polarity Negative Recommended Connection G L 52b Input Polarity Positive Alternate Connection G L 52b Input Polarity Negative Alternate Connection G L 52b Input Polarity Positive ...

Страница 49: ...ment This time duration is named Opening Time given in milliseconds The Opening Time measurement is modified by the A Input Delay The Opening Travel Time is defined by the time duration beginning with the falling edge of the Opening coil pulse 52a auxiliary switch opening and ending with 52b auxiliary switch closing This segment of time is recorded and reported as Opening Travel Time given in mill...

Страница 50: ...ive Recommended Connection R L 52a Input Polarity Negative Alternate Connection R L 52a Input Polarity Positive Alternate Connection R L 52a Input Polarity Negative Recommended Connection G L 52b Input Polarity Positive Alternate Connection G L 52b Input Polarity Negative Alternate Connection G L 52b Input Polarity Positive ...

Страница 51: ...uration from 52a auxiliary switch opening to 52b auxiliary switch closing is reported as Opening Travel Time given in milliseconds Opening Travel Time is the actual measurement and is not modified by the A Input Delay When the Closing Coil is energized the monitor registers a Close operation The time duration from Closing Coil energization to 52b auxiliary switch opening is reported as Closing Tim...

Страница 52: ...st 10 Opening and Closing Velocity measurements are averaged to provide the Average Opening Velocity and Average Closing Velocity During a Trip operation the Opening Velocity measurement is calculated by dividing the main contact stroke distance by the Open Travel Time During a Close operation the Closing Velocity measurement is calculated by dividing the main contact stroke distance by the Close ...

Страница 53: ...auxiliary switch opens at 11mS The 52b auxiliary switch closes at 33 mS The approximate locations of 52A and 52B assertions are 128 mm and 43 mm giving a stroke of 85 mm from 52A opening to 52B closing Figure 62 Opening Travel Chart Figure 63 Close Travel Chart For this breaker the approximate value of 82 mm for stroke is used as a Configuration setting in the Optimizer3 This is the average of the...

Страница 54: ...m maximum and average power supply voltage and phase currents are calculated and logged in the database As the Optimizer3 monitors the phase currents while the breaker s main contacts are interrupting a fault the highest measured current value for each phase is recorded as Peak Current Φ A B C The Peak Current is measured only during the Arc Time The time duration of the Peak Current is not record...

Страница 55: ... no visibility for the status of AUX Inputs used this way on web pages or through DNP The relay status is visible as a DNP point so if no other parameter is configured to assert the relay then the status of the AUX Input may be known by the status of the relay DNP point For instance if Mode 6 is selected and saved and AUX Inputs defined the remaining unused AUX Inputs will show in the Digital Inpu...

Страница 56: ...NP3 Point List and decide what information from which sensors and which phases will be retrieved through DNP3 Program the Sensors SF Gas Monitor and Circuit Breaker Monitor sections first before programming the DNP3 section PROGRAMMING FOR DNP3 There are two operating modes for DNP3 communication Ethernet TCP IP and Serial RS 485 Port A or B They can be selected by clicking the word Disabled A pul...

Страница 57: ...bered rows will appear below each section The number of the row is the DNP Point Index number The number of points can be changed at any time in the programming process Points can be added as needed by changing the Number of Measurements Choose the category from which the DNP3 point will be selected from the following catagories Any Circuit Breaker Monitor Circuit Breaker Monitor Phase A B C Other...

Страница 58: ...is de asserted VALUE BEHAVIOR Under error free conditions each DNP3 analog point value is updated when the deadband value is exceeded In the case of a sensor error the previous value prior to the error remains as the analog point value and the DNP3 flag changes to offline When the restart quality flag is asserted the analog point value is set to 0 TIME STAMPS The time stamp is updated each time th...

Страница 59: ...rams per liter BAR Celsius liters grams meters regardless of the units chosen in System Preferences unless the Enable Units Conversion is enabled If enabled the DNP3 values will be reported in the units chosen in the system Preferences Figure 70 Enable DNP3 Units Conversion ...

Страница 60: ...000 1533 r4 ...

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