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SMY133-SMY134-SMP133 Operating Manual

4.3.2 Measured Values Evaluation and Aggregation

As described above, measured values are evaluated according to IEC 61000-4-30 ed.2, based on 
continuous (gap-less), 10 / 12 mains cycles long intervals ( measurement cycle ) processing.
Further aggregation of the actual values from this evaluation is used to obtain values for displaying 
and recording.

4.3.2.1 Actual Values Evaluation and Aggregation

Actual ( instantaneous ) values of measured quantities, that can be viewed on instrument's display, 
are evaluated as average of integral number of measurement cycle values per 

display refresh cycl

e.

The display refresh cycle is presetable in range 2 - 20 measurement cycles , corresponding approx. to
0.4 - 4 seconds display refresh cycle duration.
Maximum (marked as 

↑ 

) and minimum ( 

↓

 ) measurement cycle values registered during the display 

refresh cycle interval are displayed too.

Exceptions :

•

frequency – the value is refreshed each frequency measurement cycle (see above)

•

harmonic components, THD and unbalance –  the last measurement cycle values are 
displayed (no averaging)

•

temperature – the value is refreshed each temperature measurement cycle (see above)

Actual values, read from an instrument via a communication link for monitoring purposes are 
evaluated from one – the last – measurement cycle only.

Neither maximum nor minimum of cosφ values are evaluated due to special character of the 
quantity. Similarly, these extreme values are not evaluated at frequency, harmonics&THD 
and temperature values either due to a specific measurement method.

4.3.2.2 Average Values Evaluation

From measurement cycle  values, average values of all basic quantities are calculated. Following 
parameters can be set to control the way of averaging :

•

averaging method, which can be set to one of :

•

fixed window

•

floating window

•

averaging period in range from  0.2 second to 1 hour

When 

fixed window

 averaging is set, values are calculated from fixed block intervals. The values are 

updated at the end of every interval. Beginnings of the intervals are synchronized to the nearest whole
time ( for example, when averaging period is set to 15 minutes, the average values are updated four 
times per hour in xx:00, xx:15, xx:30 and xx:45 ).
When 

floating window

 is set, the exponential moving average is evaluated.

28

Fig. 4.21 : Actual Data 

Display Refresh Cycle 

Setting

Fig. 4.22 : Actual Data

 maximum measurement cycle
 value during refresh cycle

 minimum measurement cycle
 value during refresh cycle

 display refresh cycle
 average value

Содержание SMP133

Страница 1: ...0 485 130 314 fax 420 482 736 896 email kmb kmb cz internet www kmbsystems eu SMY133 SMY134 SMP133 Multifunctional Panel Meters Operating Manual Document revision Release date Valid for versions hardw...

Страница 2: ...etup Example 13 4 DETAILED DESCRIPTION 15 4 1 Basic Functions 15 4 2 Manipulation and Setting 15 4 2 1 Data Area Status Bar Toolbar 15 4 2 2 Main Menu 16 4 2 3 Main Data Group 16 4 2 4 Actual Average...

Страница 3: ...g 30 4 3 3 1 1 Standard Energy Presentation 30 4 3 3 1 2 Customizable Energy Screen 31 4 3 3 1 3 Recorded Values of Energy Aggregation 32 4 3 3 2 Maximum Demand Processing 32 4 3 3 2 1 Fixed Window MD...

Страница 4: ...O 55 6 3 2 Pulse Counters 56 6 4 I O Block Processing 56 6 4 1 Digital Inputs 56 6 4 1 1 Digital Input Filter 56 6 4 1 2 Digital Input as Frequency Counter 57 6 4 1 2 1 Frequency Mode 57 6 4 1 2 2 PW...

Страница 5: ...gnal Module 61 8 3 General Oscillogram Module 62 8 4 Modbus Master Module 62 8 5 Ethernet to Serial Module 63 8 6 UDP Push Module 63 9 EXAMPLES OF CONNECTIONS 64 10 MANUFACTURED MODELS AND MARKING 72...

Страница 6: ...ter residual current inputs certain models only Communication USB 2 0 communication port for fast data acquisition configuration and firmware upgrades optional remote communication interface RS 485 Et...

Страница 7: ...ransient events measurement sampling frequency at 50 60 Hz stand model 6 4 5 76 kHz model G2 25 6 23 04 kHz 25 6 23 04 kHz 25 6 23 04 kHz measurement category of voltage inputs model 230 300V CATIII 3...

Страница 8: ...nt is built in a plastic box to be installed in a distribution board panel As a rule the panel is a part of a switchboard door then the installation must be such that the switchboard door can be close...

Страница 9: ...ured may be false 2 3 Instrument Connection 2 3 1 Safety Grounding SMP133 only As the SMP133 is safety class I type instrument it must be grounded The instrument is equipped with the faston type termi...

Страница 10: ...ntified as N 11 it stays free at delta 3 D and Aron A connections It is suitable to protect the voltage lines measured for example with 1A fuses Measured voltages can also be connected via instrument...

Страница 11: ...s with output nominal voltage of 333 millivolts They can be also used with flexible current sensors Rogowski coils with embedded integrator of appropriate voltage output signal The CTs must be connect...

Страница 12: ...needs to be set according network configuration wye or star Y or delta D if neutral voltage potential not connected Usually all of three phases are connected so choose 3 Y or 3 D For Aron connection s...

Страница 13: ...f measuring in the software only If measured network node rating is not defined we recommend to set their values for example to the nominal power of source transformer or to the maximum supposed power...

Страница 14: ...rough displayed actual values with the and and check if they correspond with reality For proper CT connection checking you can use phasor diagram screen After measured quantities checked other paramet...

Страница 15: ...or automated meter readings can record actual status in preselected intervals Certain models can be used for residual current monitoring too The instruments are equipped with battery backuped real tim...

Страница 16: ...er setting At least one of voltage or current input overloaded 4 2 2 Main Menu By pressing the a Main menu window appears With the and you can browse through the menu and select a desired action with...

Страница 17: ...layed effective values of the voltages currents and maximum of their peak values Up Ap 4 2 7 Phasor Diagram Diagram of actual voltage and current fundamental harmonic phasors Voltage phasor angles are...

Страница 18: ...0 Ripple Control Signal This data group is available when appropriate firmware module is installed only At the screen you can check live graph of ripple control signal mains signalling URC of chosen f...

Страница 19: ...ata groups format be set to 3 or 4 significant figures 4 2 11 2 Installation Setting All parameters of this group are explained in chapter Measured Electrical Quantities Installation Setup above the C...

Страница 20: ...is option the nominal frequency fNOM parameter must be set properly Otherwise the synchronization will not work Warning When editing clock parameters it must be taken into account that internal data a...

Страница 21: ...m to by entering a PIN When the instrument was locked from the instrument panel the value of this PIN is fixed and equal to the last four digits of the serial number of the instrument This serial numb...

Страница 22: ...The following table provides overview of them and recommended action Tab 4 1 Instrument Errors Error No weight Error Action 1 RAM memory error set the instrument optimally with the ENVIS program if po...

Страница 23: ...ue behind slash is valid for fNOM 60 Hz mains cycles long period i e 200 ms at frequency equal to preset fNOM which is used as a base for all other calculations The sampling of all voltage and current...

Страница 24: ...Aron 3A connection the current I2 is not measured but it is calculated as negative vector sum of current vectors I1 and I3 4 3 1 3 Harmonics and THD Evaluation Method Entire spectrum of harmonic compo...

Страница 25: ...nic component quantities Fundamental harmonic power factor or 1 Fundamental harmonic active power Pfh1 Ufh1 Ifh1 cos 1 Fundamental harmonic reactive power Qfh1 Ufh1 Ifh1 sin 1 Fundamental harmonic thr...

Страница 26: ...re Ti and the external temperature Te at selected models only are measured and updated each approx 10 seconds 4 3 1 6 The Fixscan Mode The instrument is primarily designed to measure distribution netw...

Страница 27: ...Due to the fixed evaluation window 200ms a systematic error of incomplete number of evaluated waves may occur especially in low frequency signals Temperature and analogue inputs are measured in the s...

Страница 28: ...ycle see above Actual values read from an instrument via a communication link for monitoring purposes are evaluated from one the last measurement cycle only Neither maximum nor minimum of cos values a...

Страница 29: ...ayed on the left side of average values window maximum value is identified with the symbol and minimum value with the symbol To view their time stamps press the The maximum and minimum registered valu...

Страница 30: ...valuated in three preset tariff zones time of use The actual tariff can be controlled either by an actual RTC time using preset tariff zone table with one hour resolution or by an external signal thro...

Страница 31: ...r setup screen There you can check time date of the previous clearing too 4 3 3 1 2 Customizable Energy Screen With the ENVIS DAQ program you can add special user configurable electricity meter screen...

Страница 32: ...of table selection a day long timetable for 3 different tariff selections with hourly resolution can be defined In case of the digital input selection chosen digital input specifies actual tariff ope...

Страница 33: ...ing window The value is displayed including its time stamp that corresponds to the end of the window ED estimated demand estimated value of the AD actual demand average active power that should be rea...

Страница 34: ...surement core of the instruments can operate continuously even at short auxiliary power outages see technical specifications for backup times Only voltage current measurement core and the Ethernet int...

Страница 35: ...ng current It defines range of primary residual currents that can be measured with defined accuracy and used for reliable indication of a residual current threshold exceeding Then desired residual cur...

Страница 36: ...t it is strongly recommended to check the RCT output current before connecting it to the instrument Never use standard CTs with 5A nominal secondary current for the RCM Eventual overcurrent could dama...

Страница 37: ...ith AC current output is used set its CTRCM ratio in the Installation group of parameters Optionally you can use the IRCM multiplier too If a RCT with DC current output loop 4 20 mA or 0 20 mA is used...

Страница 38: ...is when residual current is monitored by a single PE conductor measurement then it must be the only conductor threaded through Never lead a shielded cable through the RCT Install the RCT on straight p...

Страница 39: ...ls have 4 digital inputs outputs and any of them can be used as either input or output The signal polarity must be kept it depends on whether particular I O is used as input or output see description...

Страница 40: ...internal circuitry and mutually recommended wire type H05V U CY rec minimum cross section 0 75 mm2 maximum cross section 2 5 mm2 17 18 O2A O2B DO2 RO2 digital output 19 20 I1A I1B DI1 digital input V...

Страница 41: ...idual current input or AI1 20mA loop analog input for residual current I x1 is S1 k for 20mA loop I x1 is positive inputs are not insulated from instrument internal circuitry the same signal voltage l...

Страница 42: ...rk with the impedance of the input defined in the technical specifications Connect positive signal to the I 11 I 21 terminal and negative signal to the I 12 I 22 Then set the input parameters see the...

Страница 43: ...can toggle it to OFF then the clause processing is suppressed and has no effect The clause condition a logic expression When result of the expression is true logic 1 the clause action is performed If...

Страница 44: ...in the condition action properties field or push the Delete key For temporary disabling or enabling any of the clauses use the ON OFF clause switch When OFF the clause operation is suppressed but it s...

Страница 45: ...they have limited number of switching operations For pulse output following parameters must be set target digital output target energy quantity the transmitted energy must be chosen here see the elect...

Страница 46: ...esponding to one unit or Units Hz value of the quantity in the set units in case the input pulse frequency is 1 Hz If the name is not defined the quantity is referenced with its general name FCxx when...

Страница 47: ...s capable to measure residual current too appropriate I residual current is measured on the input as default using the CTRCM ratio specified in the Installation group of parameters But as soon as the...

Страница 48: ...d to chosen communication interface The message must be entered in hexadecimal format The message is sent as soon as corresponding condition changes from false to true With the Repetition option you c...

Страница 49: ...earing for which the condition was not met false Cnt number of the condition false to true changes since the last clearing Up to 4 hour meters can be defined To check state of hour meters on an instru...

Страница 50: ...when corresponding condition is true and stopped when false Duration data recording starts as soon as corresponding condition changes from false to true after the period defined in the field Duration...

Страница 51: ...ng the parameters below Then it can be used in logic expressions of conditions in any of other clauses Add the action and choose its name Var x where x is its serial number from 1 up to 16 Then set Po...

Страница 52: ...ondition true logical 1 If any of state change set and the digital input keeps the same value as in the previous I O block evaluation cycle the condition result is false Block Time minimum duration of...

Страница 53: ...id voltage changes etc or some instrument state changes Select desired event and if applicable check phases to be evaluated With the Control option you can set manner of event appearance evaluation 1...

Страница 54: ...urrent monitoring ratio CTRCM in the Installation Setting group of parameters 6 2 2 5 Time Condition This condition can be used as a single timer Time date time since the condition result either gets...

Страница 55: ...value 8 21 m s is shown in appropriate line too Otherwise a dash is displayed only If any of analog quantities processing is set too the analog I O actual data screen is shown in the branch otherwise...

Страница 56: ...on 2 Variable type actions of clauses that are not switched off are evaluated from top to bottom the variables get new values 3 The steps 1 and 2 executed once more with the new variable values the co...

Страница 57: ...ter The pulse counters have capacity of 232 1pulses Then overflow occurs and the counter starts to count from zero again Contents of the counters is maintained in case of power failure Actual state of...

Страница 58: ...ink is called Local 7 1 2 Remote Communication Links The instruments may be optionally equipped with the remote communication link for operation of the instrument via a remote computer Subsequently th...

Страница 59: ...es impedance termination of the final nodes by installation of terminating resistors especially at high communication rates and long distances Terminating resistors are only installed on the final poi...

Страница 60: ...coded instrument serial number Maximum communication rate is 9600 Bd Description of the protocol can be found in the Description of Communication Protocol manual available on www kmbsystems eu 7 3 Em...

Страница 61: ...fined in EN 50160 IEC EN 61000 4 30 4 7 and 4 15 This module also activates secondary archive the PQ Main Archive which contains aggregated value readings in the required interval Module also adds an...

Страница 62: ...complex monitoring and control systems by using small and relatively simple building blocks Downloaded values are stored into it s memory including an actual timpestamp Archived readings can be downlo...

Страница 63: ...The UDP Push UP module pushes a defined interval of values of selected variables through the device s Ethernet interface to the specified server The data receiver can be an ordinary panel device with...

Страница 64: ...34 SMP133 Operating Manual 9 Examples of Connections SMY133 U 230 X 5A Connection with 5A Nominal Output CTs TN Network Direct Star 3Y Connection SMY133 U 230 X 333mV Connection with 333 mV Nominal Ou...

Страница 65: ...erating Manual SMY133 U 230 X 333mV Connection with 333 mV Nominal Output Rogowski Current Sensors Equipped with Embedded Integrators SMY134 U 230 X 5A AA Connection with 5A Nominal Output CTs Residua...

Страница 66: ...g Manual SMP133 S L 230 X 5A Connection with 5A Nominal Output CTs TN Network Direct Star 3Y Connection SMY133 X 5A Voltage Current Connection Examples 66 TN Network Direct Star 3Y Connection IT Netwo...

Страница 67: ...anual 67 IT Network Direct Aron 3A Connection TN Network Star 3Y Connection via VT IT Network Delta 3D Connection via VT VT to Line to Neutral Primary Voltage IT Network Delta 3D Connection via VT VT...

Страница 68: ...ng Manual SMY133 134 Power Supply Options SMY133 134 RI Digital I O Connection Example 68 Line to Neutral Voltage AC Power Supply Line to Line Voltage AC Power Supply DC Power Supply NOTE MAXIMUM AVAI...

Страница 69: ...SMY133 SMY134 SMP133 Operating Manual SMY133 134 SMP133 V or W Digital I O Connection Example SMY133 134 AA I O Connection Example 1 x Digital Input 1 x RCM 1 x 20 mA Analog Input 69...

Страница 70: ...SMY133 SMY134 SMP133 Operating Manual SMY133 134 AT I O Connection Example 1 x Digital Input 1 x RCM 1 x Pt100 Thermometer SMY133 134 SMP133 4 RS 485 Communication Link Connection 70...

Страница 71: ...sensors valid for X 333mV models Numbering of Terminals I O RR RI II models V W models AA AT models signal terminal No signal terminal No signal terminal No O1A 15 D1 RO1 41 D1A 41 O1B 16 D2 RO2 42 D...

Страница 72: ...SMY133 SMY134 SMP133 Operating Manual 10 Manufactured Models and Marking 72...

Страница 73: ...2 70 480 VAC PFA PFV power factor 0 5 0 5 0 1 Pst Plt flicker 5 5 0 4 10 1 2 Udip voltage dips 0 5 0 5 10 230 VAC 2 Uswl voltage swells 0 5 0 5 230 280 VAC 2 Utr transients overvoltage Uint voltage i...

Страница 74: ...tage 0 5 0 2 0 2 1 2 UNOM v3 PFA PFV power factor 0 5 0 5 0 1 Pst Plt flicker 5 5 0 4 10 1 2 Udip voltage dips 0 5 0 5 0 05 1 UNOM 2 Uswl voltage swells 0 5 0 5 1 1 2 UNOM 2 Utr transients overvoltage...

Страница 75: ...e voltage 0 5 0 2 0 2 1 2 UNOM v3 PFA PFV power factor 0 5 0 5 0 1 Pst Plt flicker 5 5 0 4 10 1 2 Udip voltage dips 0 5 0 5 0 05 1 UNOM 2 Uswl voltage swells 0 5 0 5 1 1 2 UNOM 2 Utr transients overvo...

Страница 76: ...ncertainty Measuring range Notes frequency A 10 mHz 40 70 Hz magnitude if supply S 0 1 Udin 20 120 Udin flicker S 5 of rdg or 0 05 0 4 10 2 4 dips and swells S 0 5 Udin 1 cycle 5 120 Udin 2 interrupti...

Страница 77: ...III 300V CAT III 600V CATII permanent overload 300 VAC 600 VAC 1000 VAC peak overload UL N 1 sec 600 VAC 1200 VAC 2000 VAC burden power impedance 0 013 VA Ri 1 8 M 0 025 VA Ri 3 6 M 0 05 VA Ri 6 M Vo...

Страница 78: ...second max repetition frequency 5 minutes 70 AAC 10 AAC 15 VAC burden power impedance 0 5 VA Ri 10 m 0 01 VA Ri 40 m 3 uVA Ri 100k Current Unbalance measuring range 0 100 measuring uncertainty 1 of r...

Страница 79: ...nd reactive energies active energy uncertainty class 0 5S acc to EN 62053 22 reactive energy uncertainty class 1S acc to EN 62053 24 Note The quantities and their measurement uncertainties are valid f...

Страница 80: ...iary Voltage for Current Sensors connection non isolated connected with the instrument internal circuitry output voltage 5 VDC 5 maximum permanent load 60 mADC short circuit current max duration appro...

Страница 81: ...ode Inputs designed for indirect connection only suitable residual current transformer RCT must be used Insulation of the RCT must fulfil IEC61010 1 requirements for the CATIII double insulation for t...

Страница 82: ...pulse output pulse duration gap duration maximum frequency S0 compatible 50 ms 50 ms 10 Hz Digital Inputs model RR RI II V W AA AT type optoisolated bipolar optoisolated unipolar maximum voltage 100...

Страница 83: ...seconds per day backup battery capacity 5 years without supply voltage applied communication ports USB 2 0 optional RS 485 2 4 460 kBd Ethernet 100 Base T M Bus communication protocols KMB Ethernet t...

Страница 84: ...er packaging to prevent damage during transit A description of the problem or its symptoms must be delivered together with the product If a warranty repair is claimed the warranty certificate must be...

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