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ABB COM600 series Скачать руководство пользователя страница 54

Breaker contact travel time

High traveling times indicate the need for the maintenance of the circuit breaker mech-
anism. Therefore, detecting excessive traveling time is needed. During the opening cycle
operation, the main contact starts opening. The auxiliary contact A opens, the auxiliary
contact B closes and the main contact reaches its opening position. During the closing
cycle, the first main contact starts closing. The auxiliary contact B opens, the auxiliary
contact A closes and the main contact reaches its closed position. The travel times are
calculated based on the state changes of the auxiliary contacts and the adding correction
factor to consider the time difference of the main contact's and the auxiliary contact's
position change.

Operation counter

Routine maintenance of the breaker, such as lubricating breaker mechanism, is generally
based on a number of operations. A suitable threshold setting to raise an alarm when the
number of operation cycle exceeds the set limit helps preventive maintenance. This can
also be used to indicate the requirement for oil sampling for dielectric testing in case of
an oil circuit breaker.

The change of state can be detected from the binary input of the auxiliary contact. There
is a possibility to set an initial value for the counter which can be used to initialize this
functionality after a period of operation or in case of refurbished primary equipment.

Accumulation of I

y

t

Accumulation of I

y

t calculates the accumulated energy I

y

t, where the factor y is known

as the current exponent. The factor y depends on the type of the circuit breaker. For oil
circuit breakers, the factor y is normally 2. In case of a highvoltage system, the factor y
can be 1.4...1.5.

Spring-charged indication

For normal operation of the circuit breaker, the circuit breaker spring should be charged
within a specified time. Therefore, detecting long spring-charging time indicates that it
is time for the circuit breaker maintenance. The last value of the spring-charging time
can be used as a service value.

Gas pressure supervision

The gas pressure supervision monitors the gas pressure inside the arc chamber. When
the pressure becomes too low compared to the required value, the circuit breaker opera-
tions are locked. A binary input is available based on the pressure levels in the function,
and alarms are generated based on these inputs.

54

1MRS758734

COM600 series 5.1

Substation Analytics Technical Manual

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Содержание COM600 series

Страница 1: ...COM600 series 5 1 Substation Analytics Technical Manual...

Страница 2: ......

Страница 3: ...ion 11 3 2 5 IEC 61850 Main Application 11 3 3 Circuit Breaker Condition Monitoring Application Design 11 3 3 1 Circuit breaker Condition Monitoring Application Design 11 3 3 2 SCBE Trigger Applicatio...

Страница 4: ...ct travel time 46 5 4 2 Breaker contact travel time 47 5 5 Circuit breaker operation monitoring and operation counter 49 5 5 1 Circuit breaker operation monitoring and operation counter 49 5 5 2 Opera...

Страница 5: ...be the sole responsibility of the person or entity applying the equipment and those so responsible are hereby requested to ensure that all measures are taken to exclude or mitigate such risks This pro...

Страница 6: ...ionality descriptions and lists function blocks logic diagrams input and output signals setting parameters and technical data sorted per function The manual can be used as a technical reference during...

Страница 7: ...t point out safety related conditions or other important information It also includes tip icons to point out useful information to the reader The corresponding icons should be interpreted as follows T...

Страница 8: ...18 Functions codes and symbols 1 9 ANSI IEEE Identification IEC 60617 Identi fication IEC 61850 Identi fication Function Description CBCM 1 CBCM 1 SSCBR1 Circuit breaker condition monitoring 21FL FLOC...

Страница 9: ...analytics can be mapped onwards to slave protocols such as IEC 104 The COM600 analytics applications are designed to run on demand whenever there is data available from the IEDs which the application...

Страница 10: ...data points coming from the IED One trigger condition is autorecloser status When a new reclosing sequence starts the analytics is launched to calculate unsupplied time In addition to unsupplied time...

Страница 11: ...s Circuit Breaker Condition Monitoring Application Design 3 3 Circuit breaker Condition Monitoring Application Design 3 3 1 The circuit breaker condition monitoring consist of seven different main app...

Страница 12: ...rcuit breaker inactivity and operations count calculations If comtrade data is available it will additionally produce circuit breaker accumulated energy data and circuit breaker trip time calculation...

Страница 13: ...ll three currents and phase to earth voltages are measured The fault distance calculation is done in two steps The fault type is determined first using the build in Phase Selection Logic PSL After thi...

Страница 14: ...respectively For cases where positive sequence components or phase to phase signals are used for fault distance indication the corresponding threshold values are scaled accordingly to the one third o...

Страница 15: ...BC Fault or CA Fault is used for calculation When the faults are located at different feeders the phase to earth loop either AG Fault or BG Fault or CG Fault corres ponding to the faulty phase at the...

Страница 16: ...t BG Fault or CG Fault are used for single phase to earthfaults When the individual earth faults are located at different feeders they are also applied in the case of a phase to phase to earth fault I...

Страница 17: ...earthed systems where the fault current is fed from one side only and there are no in feeds along the protected line Load modelling takes into account the effect of the load in measured currents and...

Страница 18: ...f the entire load is tapped at the end of the feeder where s proportional line length equals unity This value can be taken from anetwork calculation program The Equivalent load Dis parameter can be de...

Страница 19: ...on simulation and field tests when Rfault 0 ohm the calculated equation_8 png Figure 4 3 11 Equation 8 The low ratio affects also the validity estimate of calculated fault distance which can be read...

Страница 20: ...Com PP loops FALSE TRUE setting The load compensation should be disabled only if the ratio between the fault current and load current is large or when the value of the fault distance estimate for the...

Страница 21: ...e 4 3 19 Fault loop impedance for a three phase fault impedance loop ABC Fault The three phase fault distance is calculated with a special measuring element using positive sequence quantities This is...

Страница 22: ...e estimated impedances are still calculated and shown normally in their respective outputs The function calculates XFPHASE which is the positive sequence fault reactance in primary ohms and is availab...

Страница 23: ...fault x xfault xpre fault The Pre fault time setting is used for generating the delta quantities The pre fault values are captured at least Pre fault time earlier than the actual fault moment occurs L...

Страница 24: ...21 The behavior of fault distance estimate in time The actual trigger time is saved in the registers recorded data The trigger method is defined with the control parameter Calculation Trg mode with t...

Страница 25: ...curs 200 ms 40 ms 160 ms after PSL has recognized the fault condition 40 ms is reserved for the PSL function for identifying the fault type PSL is a non directional function and therefore internal tri...

Страница 26: ...reclosing function which indicates that the autoreclosing sequence is in progress with the BLOCK input of SCE FRFLO Blocking of the SCEFRFLO triggering is suggested during the autoreclosing sequence w...

Страница 27: ...LIDITY output values Indicator is not applicable fault type is a short circuit N A Result is not affected by error sources High Result is slightly affect by error sources The additional error in the f...

Страница 28: ...and the FLT_DISTANCE output is not valid If the impedance settings are in use it is important that the settings closely match the impedances through which the fault current flows The impedance setting...

Страница 29: ...itive sequence impedance values An accurate fault localization requires good setting values for line impedances As datasheet impedance per unit values are valid only for a certain tower configuration...

Страница 30: ...t are sufficient The positive sequence impedance per unit values for the lines are known or can easily be obtained from datasheets The zero sequence values are not so easy to obtain as they depend on...

Страница 31: ...n accuracy for earth faults They are critical for an accurate fault location in unearthed networks In other types of networks they are less critical The Ph leakage Ris setting represents the leakage l...

Страница 32: ...ce per phase can be calculated equation_20 png Figure 4 3 31 Equation 20 Ux phase to earth voltage SCEFRFLO can also determine the value for the Ph capacitive React setting by measure ments The calcul...

Страница 33: ...be used for the SCEFR FLO block activation to disable wrong value calculation The delay TONGAPC must be set longer than the start delay of the directional earth fault function DEFLPDEF inside the term...

Страница 34: ...A parameter corresponding to the total line length Other longitudinal impedance settings are disabled sections B and C If Num of line sections 1 the longitudinal impedance settings R1 line section A X...

Страница 35: ...setting assumes homogeneous line while the model with three impedance settings gives accurate non homogeneous line with three sections These parameters are given in Table 4 3 1 Table 4 3 1 Impedance d...

Страница 36: ...block It will create a report every time a fault package is generated All monitored fault data will be recorded in the report including Triggering fault type un supply time breaks phase fault current...

Страница 37: ...upported time 1 UNSUPP_TIME Record data of bank 1 for Fault phase 1 FLT_PHASE Record data of bank 1 for Fault type 1 FLT_TYPE Record data of bank 1 for Validity of the calcu lation 1 VALIDITY_CALC Rec...

Страница 38: ...FLO requires three phase currents for operation The phase currents can be measured with conventional current transformers or Rogowski coils The full operation of SCEFRFLO requires that all three phase...

Страница 39: ...IL1 Phase B Current fault location calculation input 0 DOUBLE R_IL2 Phase C Current fault location calculation input 0 DOUBLE R_IL3 CB Position blocking logic False BOOLEAN R_CB_POS Table 4 8 2 SCEFRL...

Страница 40: ...ays equal to the current value at Input 1 1 Type new para here 0 2147483647 DelayCycles Detect changes of Input to true True 1 Type new para here False True Detec tRaisingEdge Detect changes of Input...

Страница 41: ...Phase voltage Meas Trigger mode for distance calculation Continuous 1 Type new para here External Internal Continuous Calculation Trg mode High alarm limit for calcu lated distance 1 000 0 001 Pu 0 00...

Страница 42: ...section B Positive sequence line reactance line section B 1 0 001 Ohm pu 0 001 1000 X1 line section B Zero sequence line resistance line section B 4 0 001 Ohm pu 0 001 1000 R0 line section B Zero sequ...

Страница 43: ...tType if FaultLoopValid is false 2 1 Type new para here Type new para here Substitute FaultType Interval between the executions ms 20 1 Ms Type new para here Interval Monitored Data 4 10 Table 4 10 1...

Страница 44: ...ere 0 2147483647 INTEGER WR_PHASE Implementation method Type new para here 0 2147483647 INTEGER WR_IMP_METHOD Source LN Type new para here 0 2147483647 STRING WR_SRC_LN IED name Type new para here 0 2...

Страница 45: ...gy is calculated from the measured input currents as a sum of Iy t values Alarms are generated when the calculated values exceed the threshold settings The function contains a blocking functionality I...

Страница 46: ...el time 5 4 Circuit breaker status and breaker contact travel time 5 4 1 The Circuit breaker status sub function monitors the position of the circuit breaker that is whether the breaker is in open clo...

Страница 47: ...travel time 5 4 2 The Breaker contact travel time module calculates the breaker contact travel time for the closing and opening operation The operation of the breaker contact travel time measurement...

Страница 48: ...et the actual opening time This factor is added with the Opening time Cor t1 t2 setting The closing time is calculated by adding the value set with the Closing time Cor t3 t4 setting to the measured c...

Страница 49: ...as remained inactive that is has stayed in the same open or closed state The calculation is done by monitoring the states of the POSOPEN and POSCLOSE auxiliary contacts The inactive days INA_DAYS is a...

Страница 50: ...into use by writing the value to the Counter initial Val parameter and by setting the parameter CB wear values in the clear menu from WHMI or LHMI The set values will be taken into use when trigger a...

Страница 51: ...ns If the setting is positive the calculation of energy starts after the auxiliary contact has opened and when the delay is equal to the value set with the Difference Cor time setting When the setting...

Страница 52: ...ry inputs SPR_CHR_ST and SPR_CHR indicate spring charging started and spring charged respectively The spring charging time is calculated from the difference of these two signal timings The spring char...

Страница 53: ...binary input BLOCK can be used to block the function The activation of the BLOCK input deactivates all outputs and resets internal timers The alarm signals from the function can be blocked by activati...

Страница 54: ...n oil circuit breaker The change of state can be detected from the binary input of the auxiliary contact There is a possibility to set an initial value for the counter which can be used to initialize...

Страница 55: ...set value 0 BOOLEAN TrvTOpAlm CB close travel time exceeded set value 0 BOOLEAN TrvClAlm Number of CB opera tions exceeds alarm limit 0 BOOLEAN CbOprAlm Remaining life of CB exceeded alarm limit 0 BOO...

Страница 56: ...600 1 Hz SamplingFre quency Time delay to delay the pressure alarm s 0 1 1 S 0 60 Gas Pressure Alarm Time Time delay to delay the pressure lockout s 0 1 1 S 0 60 Gas Pressure Lockout Time Initial accu...

Страница 57: ...oring Alarm Level Operations alarm level 200 1 Count 0 9999 CB Operation Number Alarm Level Operations lockout level 300 1 Count 0 999 CB Operation Lockout Level Reset operation number False 1 Reset F...

Страница 58: ...to position change 1 Open command to position change Calculation from CB Binary Signals Travel Time Calcu lation Mode Technical revision history 5 12 Table 5 12 1 SSCBR Technical revision history Cha...

Страница 59: ......

Страница 60: ...Phone 358 10 22 11 ABB Distribution Automation 4300 Coral Ridge Drive Coral Springs Florida 33065 Phone 1 954 752 6700 www abb com mediumvoltage www abb com substationautomation 1MRS758734 B 9 4 2018...

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