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HT VEGA78, User Manual

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HT VEGA78 User Manual Download Page 68

   VEGA78 

 

 

 

 

EN - 67

5.5.2.5. Measures 

As an example, below are shown the screens relative to a 

three phase 4-wire system

. Similar 

consideration can be applied to any other selected system. In measure mode, the instrument 
displays the saved values in TRMS as shown in the following figures: 
 

 
 
 
 
 

 

In this page, the following symbols are used: 
V1N 

 Neutral - Phase L1 Voltage 

V2N 

 Neutral - Phase L2 Voltage 

V3N 

 Neutral - Phase L3 Voltage 

VNPE 

 Neutral - Ground Voltage 

V12 

 Phase L1 - Phase L2 Voltage 

V23 

 Phase L2 - Phase L3 Voltage 

V31 

 Phase L3 - Phase L1 Voltage 

Inv% 

 % value of the Negative sequence unbalance 

Omo% 

 % value of the Zero sequence unbalance 

SEQ 

 Phase sequence: 

”123”

 => Correct 

”132”

 => Not correct 

”023”

 => No Voltage on B1 

”103”

 => No Voltage on B2 

”120”

 => No Voltage on B3 

”100”

 => No Voltage on B2 and B3 

”020”

 => No Voltage on B1 and B3 

”003”

 => No Voltage on B1 and B2 

Hz 

 Frequency 

I1 

 Current on Phase L1 

I2 

 Current on Phase L2 

I3 

 Current on Phase L3 

IN 

 Neutral Current 

Fig. 103: Page 1/5 of numeric values for three-phase 4-wire system 

The following keys are active on this page: 
 

 The 

F1

 key (or the 

PAG

 item on the display) advances to the following page of saved 

values. 

 The 

ESC

 key (or the smart icon   on the display) to exit the function and go back to the 

“Recording analysis” page (Fig. 98). 

 

Shop for Power Metering products online at:

1.888.610.7664

www.

PowerMeterStore

.com

Summary of Contents for VEGA78

Page 1: ... Copyright HT ITALIA 2017 Release EN 1 06 02 05 2017 VEGA78 User manual Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 2: ...nalysis screens 23 5 2 4 Vectorial diagrams screens 25 5 3 Analyzer Settings 27 5 3 1 Analyzer Configuration screen 27 5 3 1 1 Setting system frequency 32 5 3 1 2 Setting clamp type 33 5 3 1 3 Setting full scale of clamps 33 5 3 1 4 Setting VT ratio 33 5 3 2 Advanced Settings screen 33 5 3 2 1 Zoom graphics option 34 5 3 2 2 Harmonics type option 34 5 3 2 3 Harmonics values option 35 5 3 2 4 Zoom ...

Page 3: ...ase 4 wire 3P HL USA system ENG type 80 7 10 Using in a 3 phase 4 wire 3PHL USA system ENG_UK type 81 7 11 Using of meter in a 3 phase 3 wire 3POD USA system ENG type 82 7 12 Using of meter in 3 phase 3 wire 3POD USA system ENG_UK type 83 7 13 Using of meter in a 3 wire 3P 2E USA system ENG type 84 7 14 Using of meter in a 3 wire 3P 2E USA system ENG_UK type 85 7 15 Using of meter in a 3 wire 3P O...

Page 4: ...method outlines 101 10 5 1 Integration period 101 10 5 2 Power factor calculations 101 11 AFTER SALE SERVICE 102 11 1 Warranty 102 11 2 Service 102 Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 5: ...on class 2 It can be used for VOLTAGE and CURRENT measurements on installations of excess voltage CAT IV 600V to earth and a CAT III 1000V maximum voltage between inputs We recommend following the normal safety rules devised by the procedures for carrying out operations on live systems and using the prescribed PPE to protect the user against dangerous currents and the instrument against incorrect ...

Page 6: ...asuring accuracy When measuring current always position the wire in the very middle of the jaws in order to obtain the highest accuracy A measured value remains constant if the HOLD function is active Should you notice that the measured value remains unchanged disable the HOLD function 1 4 AFTER USE After use turn off the instrument by pressing ON OFF key for a few seconds If you expect not to use...

Page 7: ...ween voltages and currents Recording by pressing GO STOP key of this values TRMS values of voltages currents corresponding harmonics active reactive and apparent powers power factors and cosphi active reactive and apparent energies voltage anomalies It will be possible to analyze the recorded data ONLY by transferring them to a PC Saving by pressing SAVE key of a Instant sampled of instantaneous v...

Page 8: ...900mAh which is included with the meter Use only the external adapter standard supplied with meter for charging battery see 8 2 for more details CAUTION For recordings use ALWAYS the external adapter even the instrument allows the operator to perform a recording using internal battery CAUTION Please perform a complete charging of internal battery for at least 5 hours before the first use of meter ...

Page 9: ...e connections on L1 L2 L3 phases and neutral N 2 BE input for Ground connection 3 Inputs for currents connections on L1 L2 L3 4 Input for neutral N current connection Fig 2 Description of meter s input terminals COMPACT FLASH 1 2 3 4 5 CAPTION 1 Input for external adapter 2 Output for compact flash 3 Output for external driver USB 4 RESET command 5 USB output for PC connection Fig 3 Description of...

Page 10: ...rmit to select the desired programmable parameters inside various screens The double function of ZOOM in and ZOOM out permits to change manually the full scale of some graphics inside SCOPE section in order to improve the global resolution on viewing waveforms of signals see 5 3 2 Arrow keys and permit to operate on internal pages inside some kinds of screen Key SAVE Saves an Instant type sampling...

Page 11: ...s associated to F1 F4 function keys An example of possible screen is shown on Fig 5 Fig 5 Example of screen 4 4 RESET OF METER The meter is designed with internal Reset Hardware which can be used if any functions is blocked at display in order to restore all correct operations Consider the below steps to perform Reset actions 1 Using the PT400 pointer pen or another object softly pressing the inte...

Page 12: ... system parameters of meter as date hour language display brightness protection password keys sound on pressure auto power off and memory type see 5 1 Real time values section which permits to see the real time measured values at display under various formats see 5 2 Analyzer settings section which permits to define the simple and advanced configurations relative to connection of meter to the inst...

Page 13: ...ection 1 Move the cursor using arrows keys on field relative to Language marked with blue background 2 Using F3 or F4 keys or touch MOD o MOD for selection of language choosing among the different options 3 Pressing SAVE or ENTER keys or the smart icon to save the selected option and confirm by Ok This selected parameter will be present also the turning off of meter 4 Pressing ESC key or the smart...

Page 14: ...ible formats European EU or American US DD MM YY Option EU MM DD YY Option US 4 Using F3 or F4 keys alternatively touch MOD o MOD for Time setting choosing between two possible format 24 hours or 12 hours HH MM SS Option 24h HH MM AM PM Option 12h 5 Press SAVE or ENTER keys or the smart icon to save the selected option and confirm by Ok This selected parameter will be present also the turning off ...

Page 15: ...cted option and confirm by Ok This selected parameter will be present also the turn off of meter 4 Press ESC key or the smart icon to quit without saving any modification 5 1 4 Protection Password setting The meter is provided with a protection password to avoid the risk of accidental recording interruption 1 Move the cursor using arrows keys on field relative to Password marked it with blue backg...

Page 16: ... keys or the smart icon to save the selected option and confirm by Ok This selected parameter will be present also after turning off the meter 7 Pressing ESC key or the smart icon to quit without saving any modification 5 1 5 Sound keys setting The meter permits to enable a instantaneous sound for any key pressure of the frontal panel 1 Move the cursor using arrows keys on field relative to Sound ...

Page 17: ...ffect is a long sound before turn off of meter 1 Move the cursor using arrows keys on the field relative to Auto power off marked with blue background see Fig 15 Auto power off setting screen 2 Use F3 or F4 keys alternatively touch MOD o MOD for enable YES or disable NO auto power off 3 Press SAVE or ENTER keys or the smart icon to save the selected option and confirm by Ok This selected parameter...

Page 18: ... icon to exit by screen without saving any modify 5 1 8 Touch screen calibration This operation is necessary if any internal features of touch screen display are not correctly positionated or not more selectable by using the PT400 pointer 1 Select the TOUCH item inside the General settings section The message Do You want to calibrate touch screen is shown by the meter Confirm with Ok The herewith ...

Page 19: ... x y will be used to indicate that the current page number x and the total number of pages y depend on the instrument settings Pressing cyclically F1 key or arrow keys left of right the meter shows the other pages of TRMS measured values which are described in below pictures Pressing ESC key to go back to previous screens or back to GENERAL MENU PARAMETERS CAPTION V1N Phase Neutral voltage L1 phas...

Page 20: ...ent L1 Fig 21 Page of Phase 1 values PARAMETERS CAPTION V2N Phase Neutral voltage L2 phase I2 Current on L2 phase Pact2 Active Power L2 phase Preact2 Reactive Power L2 phase Papp2 Apparent Power L2 phase Pf2 Power factor L2 phase CosPhi2 Power factor between fundamental of voltage L2 and current L2 Fig 22 Page of Phase 2 values PARAMETERS CAPTION V3N Phase Neutral voltage L3 phase I3 Current on L3...

Page 21: ...ime in which the peak occurred Start rec Date when recording was started Stop rec Date when recording was stopped Rec Time Time elapsed from Rec Start Int Per Value of the set integration period Rec Number of the recording in progress Fig 25 Producted energy page CAUTION The Total Produced Energy page is shown only if recording parameter Co generation has been set in the instrument see 5 4 5 and i...

Page 22: ...utral voltage Vn for three phase 4 wire system and single phase with their TRMS values as shown in below screens Fig 27 Voltage waveforms screen for 4 wire systems Simultaneous waveforms of currents I1 I2 I3 and neutral current In for three phase 4 wire system with their TRMS values as shown in below screens Fig 28 Current waveforms screen for 4 wire systems Waveforms of signals on L1 phase with t...

Page 23: ...misation of full scale of voltage and current graphic is possible in order to improve the resolution on readings In this situation pressing arrow keys ZOOM in or ZOOM out for increase or decrease the value of desired full scale Press F2 key to change from current full scale to voltage full scale Press ESC key or the smart icon to quit waveforms screens and go back to TRMS real time values screen S...

Page 24: ...he positive value means the condition of absorbed harmonics mains loads direction while the negative value means the condition of generated harmonics loads mains direction Fig 32 Harmonic analysis of voltages in percentage value for 4 wire systems In all case the full scale of graphs is automatically set from meter depending on measured values Change to currents screens by pressing F2 key or touch...

Page 25: ...ltage Vn and single currents I1 I2 I3 and neutral current In for three phase 4 wire system with THD values both with histogram graphics and with numerical values in percentage or absolute value depending on the desired settings These values are shown in four pages selectable by pressing cyclically the F1 key or touch the PAGE at display On Fig 36 and Fig 37 are display as an example the situation ...

Page 26: ...inductive or capacitive loads nature of electrical installations As an example below are shown the screens relative to a three phase 4 wire system Similar consideration can be applied to any other selected system By pressing cyclically F1 key the below screens are shown by meter Vectorial diagram total of phase angles among V1 V2 V3 and between V1 I1 V2 I2 V3 I3 more than indication of percentage ...

Page 27: ...een and back to the previous one CAUTION The vectors of voltages are referred to the external circle on each diagram and the vectors of current are referred to second circle The vectors sizes are designed so that the vector of maximum amplitude can touch the circle and the other vectors are scaled with respect to it proportionally to their amplitude The rotation positive reference associated at ea...

Page 28: ...ed for a correct measurement only in connection with the following electrical systems Three phase system 4WIRE Three phase four wire WYE system ground ENG ENG_UK Three phase system 3WIRE Three phase system three wire WYE no Neutral ground ENG ENG_UK Three phase system ARON Three phase system three wire DELTA ARON 2 wattmeter method ground ENG ENG_UK SINGLE phase system phase neutral ground ENG ENG...

Page 29: ...Fig 44 Analyzer configuration screen for 4 wire system ENG_UK type Fig 45 Analyzer Configuration screen for 3 wire system ENG type Fig 46 Analyzer Configuration screen for 3 wire system ENG_UK type Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 30: ... Analyzer Configuration screen for ARON system ENG_UK type Fig 49 Analyzer Configuration screen for Single phase system ENG type Fig 50 Analyzer Configuration screen for Single phase system ENG_UK type Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 31: ...r Configuration screen for 2 phase system 3 wire 1Ph3W ENG_UK type Fig 53 Analyzer Configuration screen for Two phase system 3 wire 3P 2E ENG type Fig 54 Analyzer Configuration screen for 2 phase system 3 wire 3P 2E ENG_UK type Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 32: ...r Configuration screen for 3 phase system 3 wire 3P OD ENG_UK type Fig 57 Analyzer Configuration screen for Three phase system 4 wire 3P HL ENG type Fig 58 Analyzer Configuration screen for 3 phase system 4 wire 3P HL ENG_UK type Shop for Power Metering products online at 1 888 610 7664 www PowerMeterStore com ...

Page 33: ...on 5 3 1 1 Setting system frequency 1 Move the cursor using arrows keys on field relative to Freq Hz marked with blue background 2 Use F3 or F4 keys alternatively touch MOD o MOD to select the system frequency choosing between 50Hz or 60Hz options This parameter is relevant ONLY if the input voltage not permits to recognize the frequency value for example only the clamps for the current measuremen...

Page 34: ...natively touch MOD o MOD In case of FLEX clamp only 300A or 3000A options are possible 3 Press SAVE or ENTER keys or the smart icon to save the selected option and confirm by Ok This selected parameter will be present also after turning off the meter 4 Pressing ESC key or the smart icon to quit without saving any modification 5 3 1 4 Setting VT ratio The meter can be interfaced also with step down...

Page 35: ...ion and confirm by Ok This selected parameter will be present also the turn off of meter 4 Press ESC key or the smart icon to quit without saving any modification 5 3 2 2 Harmonics type option This option permits to select the type of harmonics which can be shown inside Real Time values section 1 Move the cursor using arrows keys on field relative to Harm type marked it with blue background 2 Use ...

Page 36: ... 4 Zoom with respect to the 1st harmonic option This option permits to show harmonics graphics with a zoom relative to the first harmonic order fundamental or with a zoom relative to the highest amplitude harmonic inside the Real Time values section Also in this case the aim is to better the final resolution of graphics 1 Move the cursor using arrows keys on field relative to Zoom 1st harm marked ...

Page 37: ...round 2 Use F3 or F4 keys alternatively touch MOD o MOD to select one of below options YES The meter shows the page 9 9 of average values inside Real Time Values section only for 4 wire systems NO The meter does not shows the page 8 8 of average values inside Real Time Values section 3 Press SAVE or ENTER keys or the smart icon to save the selected option and confirm by Ok This selected parameter ...

Page 38: ...tion of Recording settings icon see the below screen is shown Fig 63 Recording settings screen Using up and down arrows keys or touching directly the items at display the selection disable of internal flags inside check box is possible Click on check box with symbol to cause an expansion of structure with the opening of a new sub level inside which new selections are possible Click on check box wi...

Page 39: ...virtual keyboard on meter which is activated by pressing F4 key or the MODIFY at display The flag of this option is always active and not disabled 5 4 2 1 Use of virtual keyboard With the Comments marked in blue background at display press F4 key or the MODIFY at display The below screen is shown at display Fig 64 Virtual keyboard screen The keys description of the above keyboard is shown in the b...

Page 40: ...SAVE or ENTER keys or the smart icon to save the settings The Automatic mode and the set date hour are shown at display 5 4 4 Integration period This option permits to set the integration period see 10 5 1 which is the time interval between two sequential recordings within the global duration of measurements The flag of this option is always active and not disabled 1 Move the cursor using arrows k...

Page 41: ... to exit from this error condition In this order the flag of General Parameters check box it will be selected and the below screen with black text background is shown Fig 66 General Parameters section selected parameters In example of the above picture 32 parameters are been selected on total of maximum 251 available and the correspondent autonomy is shown automatically by meter in this case CAUTI...

Page 42: ...m 1 to 7 selected parameter depend on system Current from 1 to 4 selected parameter depend on system Powers and Energies from 1 to 8 selected parameter depend on system and Cogenerations Power Factor from 1 to 8 selected parameter depend on system and Cogeneration Harmonics THD and DC from 1 to 8 selected parameter depend on system Harmonics Odd from 25 to 100 selected parameter depend on system H...

Page 43: ... L2 L3 Voltages TRMS voltages L1 N L2 N L3 N N PE TRMS voltages L1 L2 L2 L3 L3 L1 Currents TRMS currents L1 L2 L3 Neutral Active Power Energy Active power and energy L1 L2 L3 Total Reactive Power Energy Reactive inductive or capacitive power and energy L1 L2 L3 Total Apparent Power Energy Apparent power and energy L1 L2 L3 Total Power Factor Power factor L1 L2 L3 Total CosPhi Power factor referred...

Page 44: ...ursor on Odd or Even using arrows key and press F1 key or touch CLP EXP at display The result referred to Odd harmonics is below shown Fig 70 Harmonics sub levels odd harmonics selection Press F3 key alternatively touch SEL at display to select unselect the desired parameters The number of selected and recording autonomy are automatically updated from meter see 10 2 Press SAVE or ENTER keys or the...

Page 45: ...6 1 Fig 72 No selected voltages error screen To solve the error see Fig 72 situation of above screen select the Voltages inside General Parameter sub level see 5 4 6 1 5 4 7 Voltage Anomalies This option permits to set the control parameters relative to voltage anomalies sags swell supply breaks see 10 1 recording which is completely independent from periodic analysis regulated by integration peri...

Page 46: ...ting the correspondent value Pressing and holding of these keys permits a rapid values setting while the single pressure increase or decrease on only unit the value Use left or right arrow keys to move on various fields 3 Press SAVE or ENTER keys or the smart icon to save each performed setting CAUTION The nominal reference value should be set depending on the type of considered system on test and...

Page 47: ...om the exit of meter by factory 2 VOLTAGE ANOMALIES Setting parameters for voltage anomalies recording only sags swells breaks see 10 1 3 HARMONICS Setting parameters for voltages and currents harmonic analysis see 10 2 4 POWER ENERGY Setting parameters for power and energy measures see 10 4 Pressing F2 key or touch PREDEF at display in any Recording Settings screen The meter show the below screen...

Page 48: ...e typical customized configuration called GENERIC PLANT was defined and can be loaded by pressing the SAVE or ENTER keys or the smart icon This configuration cab be removed in any time by pressing F2 key or the REM at display The warning message Delete selected configuration is shown by meter Press Ok to complete the operation Please note that the 5 predefined configuration and the DEFAULT configu...

Page 49: ...ation period 1min Cogeneration OFF General Parameters V1N VN PE Hz Single phase V12 V23 V31 Hz 3 wire ARON V1N V2N V3N VN PE Average if activated Hz 4 wire Voltage harmonics OFF Each system Current harmonics OFF Voltage anomalies ON Ref Voltage anomalies 230V Single 4 wire 400V 3 wire ARON Up threshold anomalies 6 Each system Low threshold anomalies 10 Unbalance Not available Single phase ON 3 4 w...

Page 50: ...Parameters V1N VN PE I1 Hz Single phase V1 PE V2 PE V3 PE V12 V23 V31 I1 I2 I3 Hz 3 wire V12 V23 V31 I1 I2 I3 Hz ARON V1N V2N V3N VN PE I1 I2 I3 IN Hz 4 wire Voltage harmonics THD DC h1 h2 h3 h25 Each system Current harmonics THD DC h1 h2 h3 h25 Voltage anomalies OFF Ref Voltage anomalies OFF Single 4 wire OFF 3 wire ARON Up threshold anomalies OFF Each system Low threshold anomalies OFF Unbalance...

Page 51: ...1 Cosphi1 Ea1 Eri1 Erc1 Single phase Pt P1 P2 P3 Qti Qti1 Qti2 Qti3 Qtc Qtc1 Qtc2 Qtc3 St S1 S2 S3 Pft Pf1 Pf2 Pf3 Cosphit Cosphi1 Cosphi2 Cosphi3 Eat Eat1 Eat2 Eat3 Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 3 wire 4 wire Pt P12 P32 Qti Q12i Q32i Qtc Q12c Q32c St S12 S32 Pft Pf12 Pf32 Cospht Cosphi12 Cosphi32 Eat Ea12 Ea32 Erit Eri12 Eri32 Erct Erc12 Erc32 ARON Voltage harmonics OFF Each system Curr...

Page 52: ... Pft3 Cosphit Cosphi1 Cosphi2 Cosphi3 Eat Ea1 Ea2 Ea3 Erit Eri1 Eri2 Eri3 Erct Erc1 Erc2 Erc3 Voltage harmonics THD DC h1 h2 h3 h11 Current harmonics THD DC h1 h2 h3 h11 Voltage anomalies ON Ref Voltage anomalies 230V Up threshold anomalies 6 Down threshold anomalies 10 Unbalance ON Table 6 Parameters of default configuration CAUTION The DEFAULT configuration defines the selection of parameters on...

Page 53: ...ration can be performed in the below ways MANUAL Recording will start at the following minute after pressing GO STOP key AUTO After the necessary pressing of GO STOP key the meter stands by until the set Date Hour see 5 4 3 and then start automatically the recording The waiting and recording run status are marked by meter with dedicated icons which are present on the top right of display as shown ...

Page 54: ...lock the recording start is important for user to correct possible errors performed during meter s setting Warning Missed external adapter Wrong phase sequence Negative active powers Wrong Vref voltage anomalies Ok Cancel Fig 81 Warning message errors screen Below the meaning of the above s of warning windows screen Type of error Description Missed external adapter Connect the external adapter to ...

Page 55: ...will not be processed and the corresponding series of values won t be transferred to the definitive memory 5 4 10 1 Automatic start of recording To start a recording under automatic mode a preliminary definition of a correct starting Date Hour compatible with system date is needed inside Recorder Settings section see 5 4 The below screen is shown Fig 82 Correct Date Hour Fig 83 Wrong Date Hour 1 M...

Page 56: ...neration Number of recorded voltage anomalies Type of selected system Type of used clamp Full scale of used clamp Ratio of eventual external VT used 4 Pressing ESC key or the smart icon to quit from the above screen Each recording running is stopped and results are automatically saved by meter by pressing of GO STOP key or as soon as the date hour of automatic stop is reached CAUTION The only Real...

Page 57: ...o the type of data saved in the memory also the information on the starting and stopping date of the event respectively Time1 and Time2 for Reg type recordings while date and time are indicated for Istant instant sampling The following operations are possible only on the screen in Fig 87 1 Use the up and down arrow keys to highlight blue background one of the recordings on the screen Press the F1 ...

Page 58: ...he smart icon to exit the function and go back to the Saved data page Fig 87 5 5 1 1 Recording information This page contains general information about the recording Reg file previously selected in the Saved Data Management MENU Fig 89 Recording info 1 In these conditions the F1 key or the MODIFY key on the display is active and it is possible to modify and save the comment line by using the virtu...

Page 59: ...r along the quantity tree The F1 key or the CMP EXP item on the dislay compresses and expands the tree of the quantity highlighted by the cursor The F2 key or the SEL item on the dislay selects or deselects the parameter highlighted by the cursor The ENTER key or the smart icon on the display confirms the selection previously made and displays the graph of the selected parameter Fig 92 The CANC ke...

Page 60: ...exit the function and go back to the Recording analysis page Fig 88 2 Press the F4 key or the OPTIONS item on the display to access the page for the activation of the Advanced graph Fig 93 Fig 93 Options Advanced graph The following keys are active on this page The F3 and F4 keys or the MOD and MOD items on the display enable the user to choose YES or NO for the advanced graph The ENTER key or the...

Page 61: ...o exit the function and go back to the Selecting a parameter page Fig 90 5 5 1 3 Dips ans swells This page shows a table containing all voltage anomalies occurred during recording Fig 94 Dips ans swells Column description N Progressive number of the anomaly L Phase in which the anomaly occurred Date Time Date time at which the anomaly occurred Max Min Maximum minimum value of the anomaly Duration ...

Page 62: ...wing keys are active on this page The up and down arrow keys move the cursor alternatively on Type or Phase The F3 and F4 keys or the MOD and MOD items on the display enable the user to filter the anomalies to be selected It is possible to select All Up Down Int if the cursor highlights Type and All Phase1 Phase2 Phase3 if the cursor highlights Phase The ENTER key or the smart icon on the display ...

Page 63: ... of mains frequency consumed while recording Date Ppeak Date and time in which the power peak occurred Start rec Starting date of the recording Stop rec Stopping date of the recording Rec Time Recording time expressed in days d hours h and minutes m Int Per Set integration period value CAUTION The Total Consumed Energy page is shown only if general parameter Total Active Power Energy has been reco...

Page 64: ...ile recording Date Ppeak Date and time in which the power peak occurred Start rec Starting date of the recording Stop rec Stopping date of the recording Rec Time Recording time expressed in days d hours h and minutes m Int Per Set integration period value CAUTION The Total Produced Energy page is shown only if general parameter Total Active Power Energy has been recorded see 5 4 6 1 and if the rec...

Page 65: ...con on the display to exit the function and go back to the Saved data page Fig 87 5 5 2 1 Recording information This page contains general information about the saved Istant file previously selected in the Saved Data Management MENU Fig 99 Recording info 1 In these conditions the F1 key or the MODIFY key on the display is active and it is possible to modify and save the comment line by using the v...

Page 66: ...98 5 5 2 3 Harmonics analysis This screen Fig 101 displays the harmonic values and the THD value of voltages V1 V2 V3 Vn and of currents I1 I2 I3 and of Neutral current In in a graph scaled according to the Full scale Fs or in a table The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU ADVANCED As an...

Page 67: ...e Recording analysis page Fig 98 5 5 2 4 Vectors As an example below are shown the screens relative to a three phase 4 wire system Similar consideration can be applied to any other selected system This screen Fig 102 displays with graphic and numeric indications the phase delays expressed in degrees between Voltage V1 and V2 V2 and V3 V3 and V1 Voltage V1 and current I1 Voltage V2 and current I2 V...

Page 68: ...e sequence unbalance Omo value of the Zero sequence unbalance SEQ Phase sequence 123 Correct 132 Not correct 023 No Voltage on B1 103 No Voltage on B2 120 No Voltage on B3 100 No Voltage on B2 and B3 020 No Voltage on B1 and B3 003 No Voltage on B1 and B2 Hz Frequency I1 Current on Phase L1 I2 Current on Phase L2 I3 Current on Phase L3 IN Neutral Current Fig 103 Page 1 5 of numeric values for thre...

Page 69: ...ame to save inside Pen Driver USB is shown by meter Fig 105 Definition of file name which is saved on Pen Driver USB Press SAVE or ENTER keys or the smart icon to confirm the file name or press ESC key or the smart icon to exit without saving In case of file just exist inside Pen Driver USB the below warning message is shown by meter Warning File name already existing Overwrite Ok Cancel Fig 106 C...

Page 70: ...t compact flash on meter exit from the above screen by pressing ESC key or the smart icon and open again the same screen the below screen is shown by meter Fig 108 Example of use of external memory compact flash fitted The correspondent icon is shown by meter in the top of display after fitted the Compact Flash on meter and the value of autonomy is automatically updated at display 546d 23h in the ...

Page 71: ... Meter information screen The following meaning of the items inside the above screen Item Description Manufacturer Name of manufacturer Model Name of model Sn Serial number of meter Hw Internal Hardware version of meter Fw Internal Firmware version of meter Calibration Date of last calibration performed Selection of type of memory Internal or external memory Battery charge level Percentage of char...

Page 72: ...tware screen in order to acknowledge the name of connected meter which is shown in the bottom status bar Select VEGA78 model from the available list of meters only for the first connection 6 Select the Download data command and pressing Next key in order to open the Download windows on software which the all saved data by meter are shown Select one or more desired recordings and click on Download ...

Page 73: ... clamp on L1 Phase cable as shown in Fig 114 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in case of negative rea...

Page 74: ...n L1 Phase cable as shown in Fig 115 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in case of negative readings 4 ...

Page 75: ...ions if necessary 3 Connect the transducer current clamps on Phase L1 L2 L3 and Neutral N cables as shown in Fig 116 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to each load which should be normally inductive before starting a...

Page 76: ...corrections if necessary 3 Connect the transducer current clamps on Phase L1 L2 L3 and Neutral N cables as shown in respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to each load which should be normally inductive before starting a ...

Page 77: ...tions if necessary 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 118 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse...

Page 78: ... corrections if necessary 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 119 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording ...

Page 79: ...cessary 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 120 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before...

Page 80: ...essary 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 121 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before ...

Page 81: ...ssary 3 Connect the transducer current clamps on Phase L1 L2 L3 and N cables as shown in Fig 122 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive be...

Page 82: ...ary 3 Connect the transducer current clamps on Phase L1 L2 L3 and N cables as shown in Fig 123 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive befo...

Page 83: ...ry 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 124 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before star...

Page 84: ...necessary 3 Connect the transducer current clamps on Phase L1 L2 L3 cables as shown in Fig 125 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive befo...

Page 85: ... as shown in Fig 126 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in case...

Page 86: ...les as shown in Fig 127 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in c...

Page 87: ... as shown in Fig 128 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in case...

Page 88: ...es as shown in Fig 129 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in ca...

Page 89: ... as shown in Fig 130 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in case...

Page 90: ...les as shown in Fig 131 respecting the clamp s arrow direction indicating the current standard sequence from generator to load On Real Time Values section screens selecting a 3 wire system preliminarily always verify the positive value of Active Power and the power factor relative to load which should be normally inductive before starting a recording Reverse the clamp by 180 degrees on cables in c...

Page 91: ...t defines several combinations which are shown through different icon in the top right display as follows Icon at display Description Too low battery level Perform a battery charging Residual battery charging at 25 Residual battery charging at 50 Residual battery charging at 75 Battery fully charged Only adapter connected Battery disconnected Battery and adapter connected Recharging battery Batter...

Page 92: ... Accuracy Time Accuracy 50Hz Voltage Resolution Time Resolution 50Hz 0 0 1000 0V 1 0 rdg 2dgt 10ms 0 2V 10ms Max crest factor 2 Voltage values 2 0V are considered zero by meter Meter is connectable with external VT with ratio selectable from 1 3000 Selectable threshold from 1 to 30 TRMS AC Current with Standard STD transducer clamp Range Accuracy Resolution Input impedance Overload protection 0 0 ...

Page 93: ...mp FS Range Wh VArh VAh Accuracy Resolution Wh VArh VAh Active Energy Reactive Energy Apparent Energy FS 1A 0 0 999 9 1 000 9 999k 1 0 rdg 6dgt 0 1 0 001k 1A FS 10A 0 000 9 999k 10 00 99 99k 0 001k 0 01k 10A FS 100A 0 00 99 99k 100 0 999 9k 0 01k 0 1k 100A FS 3000A 0 0 999 9k 1 000 9 999M 0 1k 0 001M For STD clamp Vmis voltage correspondent to power measurement FS Full scale clamp Power Factor Cos...

Page 94: ...adapter Mechanical characteristics Dimensions 235 L x 165 W x 75 H Weight included battery About 1 0kg Reference standards Safety of meter IEC EN61010 1 Technical literature IEC EN61187 Safety standard accessories IEC EN61010 031 IEC EN61010 2 032 Insulation Double insulation Pollution degree 2 Max altitude 2000m Overvoltage category CAT IV 600V to Ground max 1000V between inputs Power Quality EN5...

Page 95: ... the event beginning in the form day month year hour minutes seconds hundredths of second The duration of the event in seconds with a resolution of 10ms The minimum or maximum value of voltage during the event 10 2 VOLTAGE AND CURRENT HARMONICS 10 2 1 Theory Any periodical no sine wave can be represented as a sum of sinusoidal waves having each a frequency that corresponds to an entire multiple of...

Page 96: ...alues of each harmonic voltage mediated on 10 minutes shall be lower than or equal to the values stated in the following table The total harmonic distortion THD of the supply voltage including all the harmonics up to 40th order must be lower than or equal to 8 ODD HARMONICS EVEN HARMONICS Not multiple of 3 Multiple of 3 Order h Relative voltage Max Order h Relative voltage Max Order h Relative vol...

Page 97: ... 60Hz component but also a 150Hz or 180Hz component a 50Hz or 300Hz component and other significant components of harmonic up to 750Hz or 900Hz and higher The vectorial sum of the currents in a well balanced system that feeds no linear loads may still be quite low However the sum does not eliminate all current harmonics The odd multiples of the third harmonic called TRIPLENS are added together in ...

Page 98: ...ee phase system can be decomposed in 3 three phase systems which can be reduced to a separate study of three single phase circuits relative to direct sequence negative sequence and zero sequence respectively The EN50160 standard it declares relative to low voltage systems that under normal operating conditions during each period of one week 95 of the 10 minute mean rms values of the negative phase...

Page 99: ...resence of distorted voltages and currents the previous relations vary as follows Phase Active Power n 1 2 3 I V P n k n k n k k actn cos 0 Phase Apparent Power n 1 2 3 n nN appn I V P Phase Reactive Power n 1 2 3 2 2 actn appn reactn P P P Phase Power Factor n 1 2 3 appn actn n F P P P Distorted Power Factor n 1 2 3 dPFn cosf1n phase displacement between the fundamentals of voltage and current of...

Page 100: ... 1 Conventions on powers and power factors As for the recognition of the type of reactive power of the type of power factor and of the direction of the active power the below conventions must be applied The stated angles are those of phase displacement of the current compared to the voltage for example in the first panel the current is in advance from 0 to 90 compared to the voltage Equipment unde...

Page 101: ...1 The power factor inductive or capacitive positive or negative is NOT defined in the panel 10 4 2 Three phase 3 wire ARON system In the electrical systems distributed without neutral the phase voltages and the power factors and phase cos lose importance Only the phase to phase voltages the phase currents and the total powers remain defined Phase 1 Phase 2 Phase 3 W 1 2 VAR 1 2 W 3 2 VAR 3 2 Three...

Page 102: ...tic average of all the values recorded during the integration period MAXIMUM value of the parameter during the integration period harmonics excluded Only this information repeated for each parameter to be stored are saved in the memory along with starting time and date of the integration period Once these data are stored the instrument restarts to take measurements for a new period 10 5 2 Power fa...

Page 103: ...necessary as a consequence of service interventions carried out by unauthorised personnel Any change to the instrument carried out without the express authorisation of the manufacturer Use not provided for among the instrument specifications or in the instruction manual The content of this manual cannot be reproduced in any form whatsoever without express authorisation of the manufacturer All our ...

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