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ITRON SL7000 IEC7, Руководство пользователя

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SL7000 User Guide 

 

 

Total harmonic distortion (THD) 

The meter can be configured to calculate the per phase Total Harmonic Distortion (THD) value for both: 

•

 

Voltage (Uhrms) 

•

 

Current (Ihrms) 

THD is calculated over the full harmonic range from H2 to H13 for 50Hz networks and from H2 to H11 for 60Hz 

networks. The calculation is made in accordance with one of the following user-specified standard algorithms:  

•

 

ANSI (relative to the RMS value) 

•

 

IEC61000-4-7 (relative to the fundamental value) 

THD data are computed in a back end task to not disturb the global behaviour of the meter. As THD computing 

requires a lot of cpu processing, data are updated every 20s. 
The Voltage and Current harmonics distortion magnitude on each phase ( Vhrmsi and Ihrmsi ) are computed with 

a sliding filter (3 values). The filter is used to provide a stable value on display and to not take into account short 

variation on THD (especially at power up). 
At power up, filtered values will be 0 during the first 3 first THD value computing. As THD data are updated every 

20 seconds, THD data are so available after 1 minute. 
Additional calculations are done to provide the three-phase aggregate voltage and current THD values. 
THD events occur when these values exceed pre-defined thresholds, the meter then records the following defect 

event parameters: 

•

 

number of events (incremental) 

•

 

duration 

•

 

magnitude 

Note about 3-Wire: 

THD calculation on 3 wires meters is not applicable. 

 

Phase 

The meter calculates the following phase-related parameters to within 1° accuracy: 

•

 

per phase current (Ii) to voltage (Ui) phase angle (i=1, 2, 3) 

•

 

voltage to voltage phase angles (U1 - U2), (U2 - U3), (U3 - U1) 

•

 

phase sequence 

 

Neutral voltage  

Neutral voltage displacement will typically occur as a result of asymmetrical loads or phase faults. 
The meter calculates a neutral voltage displacement value once every second using a standard residual voltage 

technique (rms value of the vector sum of the phase-to-neutral voltages). When this calculated value exceeds a 

pre-programmed threshold an alarm can be triggered. 
The neutral displacement threshold value is programmed using the meter support tool and 

must

 represent an 

actual and realistic value. If left at 0.0V (default) the meter will constantly trigger unnecessary alarms. 

 

Содержание SL7000 IEC7

Страница 1: ...SL7000 IEC7 User Guide...

Страница 2: ...Itron makes no claims promises or guarantees about the accuracy completeness or adequacy of and expressly disclaims liability for errors and omissions in such materials No warranty of any kind implie...

Страница 3: ...6 2 1 Control input 26 6 3 Power supplies 29 6 4 Power fail operation 30 6 5 Real time clock 30 6 6 Calendar 30 6 7 Energy rate switching 31 6 7 1 Daylight saving 31 6 7 2 Seasons 31 6 7 3 Week profil...

Страница 4: ...eal time data 64 7 4 Modem connection 64 7 5 Communication management 65 8 Meter displays 67 8 1 Displays and annunciators 67 8 2 Meter pushbuttons 69 8 3 Meter display modes 70 9 Installation 73 9 1...

Страница 5: ...1 2 Scope This guide provides all information required to understand the principles of operation of the meter assess the suitability of the meter for any particular application install the meter safe...

Страница 6: ......

Страница 7: ...hone network G Giga 109 PSU Power supply unit GSM Global system for mobile communications RF Radio frequency GPRS General packet radio service RH Relative humidity HHT Hand held terminal RMS Root mean...

Страница 8: ......

Страница 9: ...umption and Voltage Requirements IEC 62054 21 Electricity metering equipment AC Tariff Load control part 21 Particular requirements for time switches equivalent to EN62054 21 IEC 62056 21 Electricity...

Страница 10: ...User Guide SL7000 IEC7 8 2 2 CE Certificate of conformity...

Страница 11: ...of materials At the end of their service life meters should be uninstalled and then passed to a licenced certified contractor for disposal in accordance with these regulations and with all applicable...

Страница 12: ......

Страница 13: ...ically separated from the communication lines in accordance with local laws and regulations Do not install meters that are obviously damaged Do not install meters that have been dropped or otherwise s...

Страница 14: ......

Страница 15: ...g for both energy and demand Energy rate switching performed by internal clock calendar Up to 12 seasons Up to 24 day profiles Up to 16 switching times per day profile Up to 100 special days repetitiv...

Страница 16: ...l specifications Frequency 50 60 Hz Connection wiring 3 or 4 wire Connection configuration Direct or Transformer Terminal wiring VDE asymmetrical and for CT only USE symmetrical Real Time Clock backup...

Страница 17: ...xtensive range of optional facilities and settings enabling them to be configured to suit individual requirements In general a meter is fully configured and programmed for its intended application pri...

Страница 18: ...puts 0 1 2 Pulse inputs 0 2 only 1 if TCODE option 4 only 3 if TCODE option Control outputs 0 2 4 Pulse inputs 0 2 6 1st COM port RS232 or RS485 RS232 or RS485 RS232 or RS485 2nd COM port RS232 RS232...

Страница 19: ...1 1 x RS232 1 x RS485 No 22 2 x RS485 No 23 2 x RS232 Light 24 1 x RS232 1 x RS485 Light 25 2 x RS485 Light Auxiliary Power Supply APS Code Option 0 No APS 1 APS fitted Note Legal product code is comp...

Страница 20: ...urer name 2 Meter type 3 Nominal voltage 4 Nominal maximum current and frequency 5 Metrology constant and accuracy class 6 Appropriate symbols IEC 62053 52 identifying insulation class measuring eleme...

Страница 21: ...r showing typical main supply connections for the meter configuration and type Terminal numbers corresponding to the connection diagram are moulded into the meter case either above or below the termin...

Страница 22: ......

Страница 23: ...nsformer connection accuracy i a w IEC62053 21 22 Class 1 Class 0 5 Class 0 2 Voltage Parameter Details Reference voltage for autoranging board 3 x 57 7 100V up to 3 x 277 480V auto ranging Reference...

Страница 24: ...Parameter Details Burden per phase at Ib 1VA Display Parameter Description Data Type Liquid Crystal Display LCD Digit height Main 12mm Digit height OBIS code 8mm Resolution Number of digits 9 Communic...

Страница 25: ...AC Maximum switching current 100mA Pulse input DIN S0 Optically isolated Up to 6 inputs common connection point Maximum switching voltage 27V DC provided by the meter Maximum switching current 30mA Im...

Страница 26: ...rge 8kV 10 cycles Air discharge 15kV 10 cycles Immunity to RF fields RF fields i a w IEC61000 4 3 With current 80MHz to 2GHz 10V m Without current 80MHz to 2GHz 30V m Fast transient burst Main circuit...

Страница 27: ...ree printed circuit boards PCBs metrology voltage divider circuitry and the switched mode power supply microcontroller and memory devices and I O circuitry LCD display The block diagram below shows th...

Страница 28: ...uts visible metrological LEDs and infrared port Measurement error correction The meter can be configured to take into account any measurement errors introduced by the current CT and voltage transforme...

Страница 29: ...external equipment The control outputs can be individually programmed and used to transmit or indicate meter events such as the end of an integration EOI or billing EOB period an alarm tariff indicat...

Страница 30: ...lse input 2 38 Pulse input 3 39 Pulse input 4 40 Common Note Depending on the factory configuration the meter may not be fitted with Pulse inputs 3 and 4 Pulse output The meter can be factory configur...

Страница 31: ...ne or two phases missing neutral or neutral and one phase inversion of one phase and neutral 3 wire systems missing one phase The power supply has enough reserve energy to withstand three phase power...

Страница 32: ...tz crystal powered from the meter s lithium battery or super capacitor The quartz crystal is temperature compensated to ensure accuracy over the operating range of the meter The meter can also be conf...

Страница 33: ...ime Where the facility is enabled the meter clock times will be advanced and retarded automatically by up to 2 hours each year The DST configuration can be defined in a number of ways to allow for use...

Страница 34: ...2 DP2 DP2 DP2 DP4 5 DP1 DP1 DP1 DP1 DP1 DP1 DP4 6 7 4 Day profiles Each Day Profile DP enables the tariff rate to be changed switched up to 16 times over a 24 hour period Each tariff rate switch has a...

Страница 35: ...structure provides a mechanism to manage up to fifty different rate switching schemes for active and reactive energy any overlapping rates for demand the activation of any assigned control outputs Not...

Страница 36: ...eter with new values 6 8 Backup power supply To ensure the real time clock and the cover opening detector are maintained during periods of power failure the meter is equipped with a backup power suppl...

Страница 37: ...ond and recorded in a series of total energy registers TER Active Energy 8 Quantities Per phase Direction Aggregate Direction kWh ph 1 Import kWh agg Import kWh ph 1 Export kWh agg Export kWh ph 2 Imp...

Страница 38: ...agg Export kVAh ph 2 Import kVAh ph 2 Export kVAh ph 3 Import kVAh ph 3 Export Depending on the meter configuration apparent energy is calculated by one of the following methods Arithmetical Multiplic...

Страница 39: ...rh kVAh 6 9 1 2 Summation energy The meter can be configured with up to four summation energy registers that algebraically sum the contents of up to five energy rate registers recording the same type...

Страница 40: ...ncy Neutral residual Voltage Urms Neutral Current Irms Total Harmonic Distortion 14 Quantities Voltage Current U1 magnitude and relative I1 magnitude and relative U2 magnitude and relative I2 magnitud...

Страница 41: ...lowing table illustrates the full range available for each unit multiplier Unit Energy register unit Energy register max value Wh 999 999 999 Wh 999 999 999 kWh kWh 999 999 999 kWh 999 999 999 MWh MWh...

Страница 42: ...egisters are never reset and the energy will continue to accumulate during the next billing periods At the end of a billing period page 47 the energy rate registers are read and the values recorded to...

Страница 43: ...equal to zero and not stored The summation calculation takes place once a second so any pulse input signal used for summation must have a frequency higher than 1Hz to ensure accuracy 6 9 4 Demand regi...

Страница 44: ...ecting the calculation The integration period has a programmable duration in discrete sub multiples of 60 steps from 1 minute to 60 minutes two modes of operation Fixed or block mode Sliding The meter...

Страница 45: ...t the end of the first sliding period 3 an average demand value based on the results from all integration periods within that sliding period T1 T2 T3 T4 is calculated When the next integration period...

Страница 46: ...ure starts from 13h37 continues to 13h42 6 9 4 6 Excess demand modes The meter detects an excess demand when the calculated demand value rises above predefined thresholds for the current rates Dependi...

Страница 47: ...meter calculates and extrapolates the demand to the end of the current integration period If the demand threshold value is exceeded by the extrapolated value the meter immediately indicates an excess...

Страница 48: ...ile array cumulated unit hours As this mode records energy consumption over the recording interval only energy type quantities can be allocated Average The energy quantity allocated to the load profil...

Страница 49: ...e customer energy consumption bills 6 9 6 2 End of billing EOB event The meter can be configured so that up to five different sources can trigger an end of billing EOB event generic calendar dates and...

Страница 50: ...The historical buffer register architecture is circular and operates in a first in first out FIFO fashion Meter data stored in the historical buffer registers can be read at any time and used for bil...

Страница 51: ...pe being recorded Typically for each defect event there is a high and a low threshold value crossing one threshold starts the event crossing the other finishes it Threshold values are independently pr...

Страница 52: ...ises above the sag end threshold value However if the input voltage drops below the sag start threshold and then subsequently drops below the cut start threshold the sag defect is ignored as a cut sta...

Страница 53: ...ies Network Anti tamper or fraud Meter status Billing Note Some of the monitored events could exist in more than one category Monitored events Event name Network Anti tamper Status Power failure Y Fre...

Страница 54: ...ilure durations below this preset value are short power failure occurrences above this preset value are long power failure occurrences The meter records the following power failure event parameters nu...

Страница 55: ...every 20 seconds THD data are so available after 1 minute Additional calculations are done to provide the three phase aggregate voltage and current THD values THD events occur when these values excee...

Страница 56: ...rds the number of days where none of the energy registers have incremented due to a lack of metrological activity If the recorded number of days goes over the predefined threshold then a non fatal ala...

Страница 57: ...lowing configuration event parameters number of objects configured incremental last configuration date Watchdog activity The meter detects watchdog events and records the following parameters number o...

Страница 58: ......

Страница 59: ...y aspect of the meter is programmed the meter records the number of objects configured as a date time stamped event Typical fraud related parameters include Calendar reprogramming seasons day profiles...

Страница 60: ...mally At the end of the magnetic attack a time stamped magnetic attack event is stored in the meter logbook all serial communication functions are restored 6 13 Alarm and event management 6 13 1 Logbo...

Страница 61: ...nge 10 Season change 2 Voltage sags 10 Voltage swells 10 Voltage cuts 10 Long power failures 10 Cover openings 10 Current reversals 10 COSEM user connections 10 6 13 3 Alarm type and classification Al...

Страница 62: ...rm display on the meter LCD a triggered control output an SMS or email message 6 14 Remote Firmware Upgrade There is a possibility to use the remote download functionality for a non MID meter only The...

Страница 63: ...61...

Страница 64: ......

Страница 65: ...terface is used for transmission of metering values from the meter to a Hand Held Terminal HHT or personal computer running suitable software ACE Pilot to enable communication It is also possible to p...

Страница 66: ...s allows an external device or a SCADA Supervisory Control And Data Acquisition system to collect and process the pre defined metering data as and when it is required 7 4 Modem connection The meter su...

Страница 67: ...tifications connection profiles Each connection profile is protected by a dedicated password and all connection attempts by COSEM clients are checked by the meter before establishing a connection The...

Страница 68: ......

Страница 69: ...de and provide indication of various conditions Item Name Description 1 Value Displays the currently selected energy quantity or parameter value This display is configurable see example below 2 Unit S...

Страница 70: ...e the associated icon will blink Quadrant The four individual arrow icons indicate the direction and type of the energy currently measured by the meter Active and Reactive Import and Export If the inc...

Страница 71: ...ation of the meter the duration of the button push short push less than 2 seconds long push greater or equal to 2 seconds but less than 5 seconds very long push greater or equal to 5 seconds Note What...

Страница 72: ...ows Normal mode This is the default display mode where pre selected energy parameter values and other meter data automatically scrolls in sequence on to the LCD Configurable parameters control the fol...

Страница 73: ...automatically to the normal mode Reset pushbutton operation If the reset pushbutton is pushed when in this display mode one of the following occurs if the displayed parameter can be modified by the u...

Страница 74: ...the normal mode Reset pushbutton operation In this display mode the reset button operates in the same way as in the alternate long list STD DATA level Set mode In this mode it is possible to modify ce...

Страница 75: ...s supply and that the isolation cannot be overridden by another person Following installation ensure that the meter covers are correctly fitted and sealed to prevent user access 9 2 Environmental SL70...

Страница 76: ...ter dimensions short terminal cover Item Dimension Description A 179 Meter body width B 270 Meter length including terminal cover C 83 Meter body depth Meter dimensions standard terminal cover Item Di...

Страница 77: ...d only by removing the Meter length including terminal cover with two upper fixing points 1 and 2 select the appropriate one to use as required A hanging bracket is also provided with the meter Two fu...

Страница 78: ...ring Auxiliary wiring for Full IO Board Terminal Function Terminal Function Terminal Function 20 Control output 1 29 Pulse output 1 36 Pulse input 1 21 Control output 2 30 Pulse output 2 37 Pulse inpu...

Страница 79: ...tion No connection 9 6 Using aluminium cables The certification of meters in respect of current rating is valid only when used with copper supply and load cables of the correct diameter If aluminium c...

Страница 80: ...t 6 I2 out 9 I3 out 15 APS USE wiring Terminal Function Terminal Function Terminal Function Terminal Function 1 I1 in 4 U2 in 7 Neutral 11 I1 out 2 U1 in 5 I3 in 8 I3 out 14 APS 3 I2 in 6 U3 in 9 I2 o...

Страница 81: ...e configured for both 3 wire and 4 wire cabling as shown in the following topics 9 7 1 Three Phase Depending on the number of voltage VT and current transformers CT available three phase meter connect...

Страница 82: ...t transformer configuration Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT3 in 2 1 U1 Voltage 8 3 U3 Voltage 3 1 I1 CT1 out 9 3 I3 CT3 out 4 2 I2 CT2 in 11 N Un Neutral 5 2 U2...

Страница 83: ...sformer configuration Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT2 in 2 1 U1 Voltage 8 3 U3 Voltage 3 1 I1 CT1 out 9 3 I3 CT2 out 4 No connection 11 No connection 5 2 U2 Vo...

Страница 84: ...transformer configuration Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 N Un Neutral 2 1 U1 Voltage 8 3 I3 CT3 out 3 2 I2 CT2 in 9 2 I2 CT2 out 4 2 U2 Voltage 11 1 I1 CT1 out 5 3 I3...

Страница 85: ...former configuration Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 No connection 2 1 U1 Voltage 8 3 I3 CT2 out 3 No connection 9 No connection 4 2 U2 Voltage 11 1 I1 CT1 out 5 3 I3 C...

Страница 86: ...CT configuration Meter configured for 4 wire 3 element metrology Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT3 in 2 1 U1 VT1 in 8 3 U3 VT3 in 3 1 I1 CT1 out 9 3 I3 CT3 out 4...

Страница 87: ...e 2 element metrology Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT2 in 2 1 U1 VT1 in 8 3 U3 VT2 in 3 1 I1 CT1 out 9 3 I3 CT2 out 4 No connection 11 Un No connection 5 U2 VT...

Страница 88: ...element metrology Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT2 in 2 1 U1 VT1 in 8 3 U3 VT3 in 3 1 I1 CT1 out 9 3 I3 CT2 out 4 No connection 11 Un No connection see note bel...

Страница 89: ...re 3 element metrology Terminal Phase Function Terminal Phase Function 1 1 I1 CT1 in 7 3 I3 CT3 in 2 1 U1 VT1 in 8 3 U3 VT2 in 3 1 I1 CT1 out 9 3 I3 CT3 out 4 2 I2 CT2 in 11 Un No connection 5 U2 VT c...

Страница 90: ...1 in 8 3 U3 VT2 in 3 I1 common I2 and I3 9 I3 common I1 and I2 4 I2 CT1 CT2 out common 11 Un No connection 5 U2 VT common 6 I2 common I1 and I3 The Un connection terminal 11 remains unconnected Do NOT...

Страница 91: ...guration Terminal Phase Function Terminal Phase Function 1 1 I1 Phase 1 in 7 3 I3 Phase 3 in 2 No connection 8 No connection 3 1 I1 Phase 1 out 9 3 I3 Phase 3 out 4 2 I2 Phase 2 in 10 N Un Neutral in...

Страница 92: ...t from under the securing tab and exchange 5 Ensure the battery connector is the correct way round as shown above 6 Replace the battery holder into the meter ensuring the moulded plastic connector pil...

Страница 93: ...heck that the metrology LED active kWh starts to flash The flash rate is proportional to the load 6 Using the IR port connect a support tool enabled PC to the meter and read the Total Energy Registers...

Страница 94: ...aving the installation site fit the terminal cover and seal the meter against unauthorised access or tampering by fitting wire or plastic seals as required in the following locations 1 IR Port 2 Reset...

Страница 95: ...ODE Enter the download mode SAVE_MANUFACTURER_PARAMETERS Backup manufacturing parameters ASSOCIATION_LN_PROGRAMMING Programming action INDEX_PARAMETER Index NON_FATAL_ALARM_APPEARANCE Appearance of a...

Страница 96: ...s then saved 10 2 Alarm descriptions The following table contains a list of alarms these may change due to meter firmware revision Non fatal alarm Type Description WATCHDOG ACTIVITY Trapped Watchdog s...

Страница 97: ...onger than threshold VOLTAGE SWELL PHASE 1 Self healing Voltage swell on phase 1 longer than threshold VOLTAGE SWELL PHASE 2 Self healing Voltage swell on phase 2 longer than threshold VOLTAGE SWELL P...

Страница 98: ...e of 01 01 1992 at midnight The RTC backup battery requires replacement and time date will need resetting 10 3 MID display list The MID display list will typically contain the following entries Howeve...

Страница 99: ...denominator CTd 1 00000000 Value of VT numerator VTn 1 00000000 Value of VT denominator VTd 1 00000000 Date of CT VT programming DATE 1 DD MM YY Time of CT VT programming TIME 1 HH MM SS Previous Valu...

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