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PEM735_D00084_02_M_XXEN/06.2020

9.  Waveform

In addition to the numeric values, the waveform recorder represents the waves of the 
measured voltages and currents on the display. Here, a comprehensive view of all volt-
ages 

U

L1…3

 and currents 

I

1…3 

and the consideration of individual waves is possible.

Fig. 9.1: "Waveform" display (overall view)

Содержание B93100735

Страница 1: ...PEM735 PEM735_D00084_02_M_XXEN 06 2020 Power quality analyser Software version 2 00 xx Manual EN...

Страница 2: ...ng only with permission of the publisher Subject to change Bender GmbH Co KG PO Box 1161 35301 Gr nberg Germany Londorfer Str 65 35305 Gr nberg Germany Tel 49 6401 807 0 Fax 49 6401 807 259 E Mail inf...

Страница 3: ...ransport and storage 9 1 6 Warranty and liability 9 1 7 Disposal 10 2 Safety instructions 11 2 1 General safety instructions 11 2 2 Work activities on electrical installations 11 2 3 Intended use 12 3...

Страница 4: ...tion via voltage transformers 26 4 8 Digital inputs 26 4 9 Digital outputs DO1 2 27 4 10 Relay outputs RO1 4 28 4 11 Modbus TCP connector pin assignment 28 5 Commissioning and operation 29 5 1 Getting...

Страница 5: ...6 3 12 Transient overvoltages 63 7 Voltage 65 8 Current 67 9 Waveform 69 10 Harmonics 73 11 Metering 77 12 Power Energy 81 13 System 83 14 Events 85 15 Settings 87 15 1 Info 87 15 2 Basic 88 15 2 1 E...

Страница 6: ...6 PEM735_D00084_02_M_XXEN 06 2020 17 Technical data 101 17 1 Standards and certifications 104 17 2 Ordering information 104 17 2 1 PEM 104 17 2 2 Measuring current transformers 105 18 Glossary and te...

Страница 7: ...er cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual This manual is intended for qualified personnel working in electrical engine...

Страница 8: ...oducts Hardware and software update for Bender devices Delivery of replacement devices for faulty or incorrectly delivered Bender devices Extended warranty for Bender devices with in house repair serv...

Страница 9: ...respect of the licensing of standard software as part of deliveries modifications and changes to gen eral delivery conditions for products and services in the electrical industry set out by the ZVEI Z...

Страница 10: ...be observed 1 7 Disposal Abide by the national regulations and laws governing the disposal of this device Ask your supplier if you are not sure how to dispose of the old equipment The directive on was...

Страница 11: ...plied with European standard EN 50110 can be used as a guide Onlyqualifiedpersonnelarepermittedtocarryouttheworknecessaryto install commission and run a device or system Danger of electrocution due to...

Страница 12: ...rrent measurement inputs of the PEM are connected via ex ternal 1 A or 5 A measuring current transformers In principle measurements in medium and high voltage systems are carried out via measuring cur...

Страница 13: ...ower quality and energy management is char acterised by the following features Class A power analyser certified according to DIN EN 61000 4 30 2008 Monitoring of the power quality in accordance with E...

Страница 14: ...cation Galvanically separated RS 485 interface 1 200 to 38 400 bit s Modbus RTU protocol Modbus TCP 100 Mbit s Measurements at a glance Measured quantities Phase voltages UL1 UL2 UL3 in V Line to line...

Страница 15: ...and reactive energy import and export Total harmonics for active energy Individual harmonics 2 31 for active energy import Report in accordance with EN 50160 Power frequency Supply voltage variations...

Страница 16: ...Fig 3 1 Application example Modbus TCP Ethernet BMS 1 12 Modbus RTU Datenbank L PEN PE L N PE U I Modbus TCP Modbus RTU PAS PEM7xx U I NSHV UV1 1 12 RCMS UV2 U I U I U I RCMS Modbus TCP Modbus RTU Mod...

Страница 17: ...The current inputs are connected via external 1 A or 5 A measuring current trans formers The large displayof the panel mountingdevice makes the relevant measured quantities easily legible and enables...

Страница 18: ...Device description 18 PEM735_D00084_02_M_XXEN 06 2020...

Страница 19: ...k necessary to install commission and run a device or system Danger of electrocution due to electric shock Touching live parts of the system carries the risk of An electric shock Damage to the electri...

Страница 20: ...ion 20 PEM735_D00084_02_M_XXEN 06 2020 4 3 Mounting the device 4 3 1 Dimension diagrams Fig 4 1 Dimension diagram PEM735 front view Fig 4 2 Dimension diagram PEM735 side view 144 145 125 144 136 136 1...

Страница 21: ...evice 1 Unscrew the screws of the fixing brackets 2 Slide the fixing brackets along the grooves provided in the enclosure and remove them 3 Insert the device into the installation opening of the front...

Страница 22: ...ant to consider the re quirements of DIN VDE 0100 557 VDE 0100 557 Low voltage installations Part 5 Se lection and erection of electrical equipment Chapter 557 Auxiliary circuits 4 5 Connection detail...

Страница 23: ...I32 I12 l22 L2 L1 NC N L4 NC D P2 RS 485 D D SH D SH P1 RS 485 DI8 DI7 DI6 DI5 DI4 DI3 DI2 DI1 DIC Power A2 A1 RO23 RO43 RO24 RO33 RO34 RO44 RO14 RO13 DO1 DO1 DO2 DO2 Act Link P3 10 100M Ethernet LED...

Страница 24: ...4 5 Connection diagram three phase 4 wire system e g TN S system 1 Connection to the system to be monitored 2 Measuring voltage inputs The measuring leads should be protected with ap propriate back up...

Страница 25: ...stem The PEM735 can be used in three phase 3 wire systems Fig 4 6 Connection diagram three phase 3 wire system ULL 400 V Fig 4 7 Connection diagram three phase 3 wire system ULL 690 V When used in a t...

Страница 26: ...ion ratio can be adjusted in the PEM735 1 1 000 000 Fig 4 8 Connection diagram 3 wire system via voltage transformers 4 8 Digital inputs The PEM735 features 8 digital inputs The inputs are supplied by...

Страница 27: ...econd pulse s 4 9 Digital outputs DO1 2 The PEM735 features two configurable outputs N O contacts solid state relay Tab 4 1 Digital outputs Fig 4 11 Digital outputs internal connection diagram Rated o...

Страница 28: ...Relay outputs 4 11 Modbus TCP connector pin assignment Tab 4 3 Modbus TCP connector pin assignment Rated operational voltage AC 250 V or DC 30 V Rated operational current 3 A RJ45 Pin assignment 1 Tr...

Страница 29: ...scription 1 kWh LED Pulse output see LED display Energy pulsing on page 30 2 kvarh LED 3 LC display 4 back submenu scroll move left on display 5 main menu move upwards in the menu increase number sele...

Страница 30: ...relevant standards and regulations for installation and connection as well as the operating manual of the respective device 5 4 Before switching on Consider the following questions before switching on...

Страница 31: ...wing figure illustrates the language setting schematically so that you can easily set the language when you start working with the PEM735 Fig 5 2 Schematic language setting The confirmation dialogue b...

Страница 32: ...addition it is possible to integrate the device into Bender s own bus protocol BMS bus Bender Messger te Schnittstelle via additional communication modules In this way communicationwith alreadyexistin...

Страница 33: ...Current Power Quality Voltage Waveform Harmonics Phasor Diagram Flicker EN50160 U Sum I Sum L1 L2 L3 U1 U2 U3 U4 I1 I2 I3 I4 ULn ULL I1 I2 I3 I4 Iavg ENTER Device buttons 0 2 4 6 8 10 Main Menu Power...

Страница 34: ...Commissioning and operation 34 PEM735_D00084_02_M_XXEN 06 2020...

Страница 35: ...trations can be displayed Fig 6 1 Power Quality display default display screen In addition to the phasor diagram an overview of the flicker events and the starting point for the report according to D...

Страница 36: ...dark green red and orange In this way the phase angles between the sinusoidal curves can easily be assigned The currents are depicted within the inner circle while the voltages are shown in the outer...

Страница 37: ...refer to the standard DIN EN 61000 4 15 Fig 6 3 Display Flicker The display shows Display text Description Note Present Present measured value Max Maximum measured value in the observation period Pst...

Страница 38: ...recorded and if applicable subdivided into classes But the EN 50160 does not specify threshold values The EN 50160 report clearly represents the measured values of frequencies voltages waveforms and t...

Страница 39: ...splay text Description Note Time stamp Observation period for the report Measured values comply with specified threshold values Measured values do not comply with speci fied threshold values Detail Re...

Страница 40: ...overview When several reports are stored navigate through the reports using the and buttons Activate fast automatic scrolling by pressing and holding the arrow button To navigate through individual pa...

Страница 41: ...Power Quality 41 PEM735_D00084_02_M_XXEN 06 2020 Fig 6 5 Power frequency selection of the parameters Fig 6 6 Power frequency detailed view...

Страница 42: ...missible deviations from the nomi nal frequency tolerance band Left column max 1 permissible deviation for 99 5 of the measured values narrow limits Right column max 6 4 for all measured values wide l...

Страница 43: ...Power Quality 43 PEM735_D00084_02_M_XXEN 06 2020 Fig 6 7 Supply voltage variations selection of the parameters Fig 6 8 Supply voltage variations detailed view...

Страница 44: ...rring events are often regarded as voltage sags or swells rather than rapid voltage changes Display text Description Note Limit Permissible deviations from the nominal voltage Un tolerance band Left c...

Страница 45: ...led view The display shows Un Nominal system voltage Rapid voltage changes 5 10 Basic value r m s value Integration interval 10 ms Observation period 1 week Display text Description U1 3 Counts Counts...

Страница 46: ...term Pst measured over a period of 10 minutes Long term flicker severity perceptibility unit long term Plt calculated from a sequence of 12 Pst values two hour interval according to the following equa...

Страница 47: ...Power Quality 47 PEM735_D00084_02_M_XXEN 06 2020 Fig 6 10 Flicker severity selection of the parameters Fig 6 11 Flicker severity detailed view page 1...

Страница 48: ...complied with Limit Permissible limit Tolerance Number of the measured values which must be within the tolerance band during a measurement period 1 U1 3 P95 Value Flicker measured value of the 95th p...

Страница 49: ...users unbalances up to about 3 at the three phase supply terminals occur In this European standard only values for the negative phase sequence component are given because this component is the releva...

Страница 50: ...s not complied with Limit Permissible deviations from the nominal supply voltage unbalance tolerance band Tolerance Number of the measured values which must be within the tolerance band during a measu...

Страница 51: ...cs up to the order 40 must be 8 Overview of the limits for individual harmonics Tab 6 1 Limits for individual harmonics Note table 6 1 The 3n harmonics are highlighted They contribute significantly to...

Страница 52: ...ic voltages detailed view page 1 Total harmonic distortion THD includ ing harmonics up to the order 40 max 8 Percentage 95 of the measured values must be limit value Basic value r m s value Integratio...

Страница 53: ...d with Specifications not complied with THD Total harmonic distortion H2 25 Harmonics 2 25 Limit Permissible limit U1 3 P95 Value Measured value of the 95th percentile P95 during an observation period...

Страница 54: ...requency converters and similar control equipment Levels are under consideration pending more experience In certain cases interharmonics even at low levels give rise to flicker or cause interfer ence...

Страница 55: ...D Total harmonic distortion interharmonics Percentage H1 H25 Interharmonics H1 25 Percentage Use the and buttons to navigate between the individual pages of the interharmonics Activate fast automatic...

Страница 56: ...posed short term supply voltage variations tran sients at selected points of the voltage waveform Fig 6 17 Voltage levels of signal frequencies in percent Un used in public LV networks according to EN...

Страница 57: ...ency of the ripple control signals The three frequencies used can be adjusted via Modbus or the web interface Partial Result Specifications complied with Specifications not complied with Limit Permiss...

Страница 58: ...hysteresis is 2 In addition to the threshold the duration of the voltage swell is also determined Fig 6 19 Voltage swells detailed view 1 U1 3 P95 Value V Measured value of the 95th per centile P95 du...

Страница 59: ...The nominal supply voltage Un is used as reference The volt age sag start threshold is equal to 90 of the Un the hysteresis is 2 The ratio between the residual voltage Ures and the nominal supply vol...

Страница 60: ...isplay shows Note If the Sliding Reference Voltage Usr detection method is used the calculation should be made using a first order and a constant set to one minute Usr n 0 9967 x Usr n 1 0 0033 x U 10...

Страница 61: ...terruption frequency covering the whole of European net works The voltage interruptions measured are counted and classified according to their duration Fig 6 21 Interruptions detailed view The time pe...

Страница 62: ...ing to the application The voltage interruption threshold should not be set below the measurement uncertainty of the residual voltage Ures plus hysteresis Typically the hys teresis is 2 of Us Udin Th...

Страница 63: ...e see annexes Modbus and Web server This also applies for the setting of limits for the transient measurement Note 1 The rise time can cover a wide range from milliseconds down to much less than a mic...

Страница 64: ...by switching because of the generally longer duration of such switching overvoltages Note 3 For withstanding transient overvoltages in the vast majority of cases LV installations and end user applian...

Страница 65: ...the average voltage Uavg from U1 U3 as a bar graph Fig 7 1 Voltage display Use the and buttons to switch between the individual displays The displayed minimum and maximum values refer to the current...

Страница 66: ...Voltage 66 PEM735_D00084_02_M_XXEN 06 2020...

Страница 67: ...well as the average current Iavg as a bar graph Fig 8 1 Current display Use the and buttons navigate between the displays IL and I0 I4 The displayed minimum and maximum values refer to the current mo...

Страница 68: ...Current 68 PEM735_D00084_02_M_XXEN 06 2020...

Страница 69: ...meric values the waveform recorder represents the waves of the measured voltages and currents on the display Here a comprehensive view of all volt ages UL1 3 and currents I1 3 and the consideration of...

Страница 70: ...Waveform 70 PEM735_D00084_02_M_XXEN 06 2020 Press the ENTER button to enable full screen display mode Fig 9 2 Waveform display full screen display Fig 9 3 Waveform display freeze image...

Страница 71: ...the ENTER button stop to be able to analyse the graph in more detail Pressing the EN TER button again cancels the freeze image and you return to the full screen display mode Return directly from the f...

Страница 72: ...Waveform 72 PEM735_D00084_02_M_XXEN 06 2020...

Страница 73: ...RMS and dis tortion This setting can be made directly on the device Settings Calculation Distortion Uk UFUND Fundamental THD calculation of an individual harmonic related to the fundamental U1 or I1...

Страница 74: ...Harmonics 74 PEM735_D00084_02_M_XXEN 06 2020 Fig 10 1 Harmonics display voltages of a phase Fig 10 2 Harmonics display currents of a phase...

Страница 75: ...35_D00084_02_M_XXEN 06 2020 Fig 10 3 Harmonics display currents I4 When RMS is selected the harmonics are displayed as r m s values V or A When Distortion is selected the harmonics are displayed as a...

Страница 76: ...Harmonics 76 PEM735_D00084_02_M_XXEN 06 2020...

Страница 77: ...values Note U UL1 3 Act Min Max Shows only RMS voltages UL1L2 L3L1 Act Min Max f Act U4 Act I I1 3 Act Min Max Shows only RMS current I4 Act Min Max I0 Act Min Max RMS UL1 3 Act Shows a combination of...

Страница 78: ...Metering 78 PEM735_D00084_02_M_XXEN 06 2020 Fig 11 1 Metering display voltages Fig 11 2 Metering display currents...

Страница 79: ...Metering 79 PEM735_D00084_02_M_XXEN 06 2020 Fig 11 3 Metering display r m s values Fig 11 4 Metering display fundamentals...

Страница 80: ...Metering 80 PEM735_D00084_02_M_XXEN 06 2020...

Страница 81: ...tive and reactive power as numerical values and as vectors in the quadrants Q1 4 The power values are displayed either as total measurement total or for each individual conductor L1 3 Fig 12 1 Power E...

Страница 82: ...y phasor diagram For explanations on the calculation of the power factor and the apparent power refer to page 94 Set calculation power factor convention on the device Settings Advanced PF Convention S...

Страница 83: ...can be read from the LC display or the connected system compo nents External state changes are stored as events in the event log with a resolution of 1 ms One of the digital inputs can be programmed...

Страница 84: ...System 84 PEM735_D00084_02_M_XXEN 06 2020...

Страница 85: ...and the associ ated values are displayed Fig 14 1 Events display start page SOE Press ENTER to go back one menu level Use the and buttons to switch between the event and the PQ recorder Use the and bu...

Страница 86: ...Events 86 PEM735_D00084_02_M_XXEN 06 2020 Fig 14 2 Events display SOE page 1 of 205 Fig 14 3 Events display PQLog...

Страница 87: ...tings Info view No settings can be made in the info view This page is only for information purposes Press ENTER to go to the Settings menu Use the and buttons to navigate between the individual items...

Страница 88: ...88 PEM735_D00084_02_M_XXEN 06 2020 15 2 Basic Fig 15 2 Settings Basic menu item Before changing the settings the correct password must be entered factory setting 000000 Fig 15 3 Settings display enter...

Страница 89: ...black Fig 15 4 Settings display Basic selected parameter Use the arrow buttons to jump from one field to another To change settings enter the currently selected field highlighted in black using the EN...

Страница 90: ...r successful password entry Select the field to be edited highlighted in black using the arrow buttons Activate the field with the ENTER button The field that can be edited is marked and can be set us...

Страница 91: ...Settings 91 PEM735_D00084_02_M_XXEN 06 2020 Fig 15 6 Settings display Ethernet change settings...

Страница 92: ...unication interfaces the settings of which can be made di rectly on the device Fig 15 7 Settings display COM The display shows Display text Description Protocol COM1 time source or Modbus COM2 gateway...

Страница 93: ...ngs for the harmonics are made here Fig 15 8 Settings display Advanced The display shows Display text Description Note PF Convention Power factor IEC IEEE IEEE see Fig 15 9 S Calculation Calculation m...

Страница 94: ...Quadrant 1 Power factor Active power import Reactive power import Quadrant 2 Power factor Active power export Reactive power import IEC Reactive power import Active power import Quadrant 3 Power facto...

Страница 95: ...5 10 Settings display Time The display shows Display text Description Note Time Local time Indication in hh mm ss Time Zone Global time zone Relative to GMT Date Current date Date Format Date format D...

Страница 96: ...Setting a password Press the and buttons to change a number Use the and buttons to navigate between the individual digits of the password Complete the input with the ENTER button Confirm entered passw...

Страница 97: ...0 Language Display language German Russian English Password Set and confirm new password six digit one number 0 9 per digit When LCD Timeout is set to 0 min the background lighting remains permanently...

Страница 98: ...Settings 98 PEM735_D00084_02_M_XXEN 06 2020...

Страница 99: ...unchanged 16 2 Creating display screenshots Screenshots of the present display can be created in order to document the device set tings for example They can be exported via FTP Factory settings Press...

Страница 100: ...ded from the device via FTP FTP access is read only changes or mem ory deletions are not possible FTP access The searched data can be found in the folders data ScreenShot data as bmp data Wave waveRec...

Страница 101: ...0 Hz Power consumption 14 VA Measuring circuit Measuring voltage inputs UL1 N L2 N L3 N 400 V UL1 L2 L2 L3 L3 L1 690 V Measuring range 10 120 UN CT transformation ratio Primary 1 1 000 000 V Secondary...

Страница 102: ...EN 62053 22 VDE 0418 Part 3 22 Measurement of the voltage r m s values acc to DIN EN 61557 12 VDE 0413 12 chapter 4 7 6 Measurement of the phase current r m s values according to DIN EN 61557 12 VDE...

Страница 103: ...A Minimum contact rating 1 mA atAC DC 10 V Inputs 8 galv separated digital inputs Imin 2 4 mA UDI DC 24V Environment EMC EMC IEC 61326 1 Operating temperature 25 55 C Classification of climatic condit...

Страница 104: ...voltage distribution systems up to 1 000 V a c and 1 500 V d c Equipment for testing measuring or monitoring of protective measures Part 12 Per formance measuring and monitoring devices PMD IEC 61557...

Страница 105: ...CTB41 B98086003 1 WL751 CL 1 CTB41 B98086004 125 0 5 5 WL1255 CL 0 5 CTB41 B98086005 1 WL1251 CL 0 5 CTB41 B98086006 1 5 WL1255 CL 1 CTB41 B98086007 1 WL1251 CL 1 CTB41 B98086008 150 0 5 5 WL1505 CL...

Страница 106: ...1 CTB51 B98086036 0 5 1 WL6001 CL 0 5 CTB51 B98086037 800 1 5 WL8005 CL 1 CTB51 B98086038 0 5 5 WL8005 CL 0 5 CTB51 B98086039 1 1 WL8001 CL 1 CTB51 B98086040 0 5 1 WL8001 CL 0 5 CTB51 B98086041 1000...

Страница 107: ...Byte GMT Greenwich Mean Time act UTC Coordinated Universal Time High speed data recorder HS DR1 4 Trigger timer or setpoint Recording mode Stop when full Recording interval 0 5 60 cycles Number of dat...

Страница 108: ...ms called ripple control signal are a burst of signals Often applied at a non har monic frequency that remotely control industrial equipment revenue meters and other devices f 3 kHz S Apparent power V...

Страница 109: ...ically the hys teresis is equal to 2 of Udin Voltage inter ruption poly phase system Starts when Urms on all measured channels falls below the voltage interruption swell threshold ends when Urms on an...

Страница 110: ...entage u2 U2 U1 x 100 U2 I2 Negative sequence component voltage current U2 I2 Unb Negative sequence component unbalance volt age current Udin Declared input voltage Value obtained from the declared su...

Страница 111: ...rms 1 2 Half cycle r m s voltage r m s value refreshed every half cycle r m s value measured over one cycle commencing at a fundamental zero crossing Interharmonics Interharmonic between the n 1 th an...

Страница 112: ...Glossary and terms 112 PEM735_D00084_02_M_XXEN 06 2020...

Страница 113: ...of measuring current transformers 22 Connection via voltage transformers 26 D Date 95 Device features 13 Digital inputs 26 Digital inputs outputs 83 Digital output 27 Dimension diagram 20 Display Bri...

Страница 114: ...outputs 28 83 Report EN 50160 15 38 Reset extreme values 65 Ripple control signals 56 RMS 73 S Safety instructions 19 22 Screenshot 99 Seminars 9 Service 8 Set the language commissioning 31 Setpoints...

Страница 115: ......

Страница 116: ...erg Deutschland Tel 49 6401 807 0 Fax 49 6401 807 259 E Mail info bender de www bender de Fotos Bender Archiv All rights reserved Reprinting and duplicating only with permission of the publisher Subje...

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