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Voltech PM3000ACE User Manual

Harmonics & flicker software
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IEC61000-3
H
ARMONICS
S
OFTWARE
PM3000ACE
U
SER
& F
LICKER
F
T
OR
M
ANUAL
VPN: 98-025 Issue: 7
HE
August 2006

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Summary of Contents for Voltech PM3000ACE

  • Page 1 IEC61000-3 & F ARMONICS LICKER OFTWARE PM3000ACE ANUAL VPN: 98-025 Issue: 7 August 2006...
  • Page 2 Voltech Instruments is committed to a policy of continuous product development. Hence product specification and the information given in this manual are subject to change without notice. No part of this publication may be reproduced, stored in a retrieval system...
  • Page 3 Thank you for purchasing this Voltech software. Should you experience any difficulty during the installation or use of this software, please do not hesitate to contact your supplier or one of the Voltech main offices listed below and ask for assistance.

  • Page 5: Table Of Contents

    Table of Contents 1. Introduction..............1 1.1. Standards Implemented By This Software ........1 1.2. How These Standards are Referenced ..........4 1.3. General ....................5 2. What is IEC61000-3?........... 6 2.1. Background ..................6 2.2. Test Equipment Required..............9 2.3.
  • Page 6 4.15. Results Printing ................66 4.16. Results Export ................68 4.17. Exiting from the IEC1000-3 Software ...........68 5. On-Line Help ............. 69 6. Reference Information ..........73 6.1. How the Analyser Performs a 2001 Edition Harmonics Test..73 6.2. Glossary of Terms ................76 6.3.

  • Page 7: Introduction

    This manual is intended to accompany version 4 of the software, which was released in May 2006. If you have an earlier version of the software, please contact your Voltech supplier for an upgrade. The software version is displayed in the software in the 'About' section of the 'Help' menu.
  • Page 8 200ms window and with inter-harmonic grouping which is not possible with the PM3000ACE. While measurements with this software and the PM3000ACE are valid in 2006, it is recommended that all future testing be carried out with the Voltech PM6000 and its associated PC software which does comply to the full requirements of IEC61000-4-7 edition 2.1.
  • Page 9 Introduction IEC61000-4-15 2003 Flicker - Functional and Design Specifications (This standard defines the flickermeter required for IEC61000-3-3 testing.) IMPORTANT. 61000-4-15 replaced IEC60868 in 2003. PM3000ACE Firmware v2.19 or greater is REQUIRED for compliance testing. Standards The standards discussed here are published by the IEC (www.iec.ch) and implemented by national bodies such as BSI (www.bsi.org.uk).

  • Page 10: How These Standards Are Referenced

    Introduction IEC61000-3 Software for Windows User Manual 1.2. HESE TANDARDS ARE EFERENCED IMPORTANT: Because the limit checking methods of the two versions of the harmonic part of the standard (IEC61000-3-2) are different, different results will be obtained and different views of those results are possible. Throughout the software and this user manual, the following conventions are used: IEC61000-3-2 1995 Incorporating Amendment No.

  • Page 11: General

    1.3. ENERAL The Software runs on a PC, and works with a Voltech PM3000A or PM3300 Power Analyzer and the programmable ac source of your choice. The test equipment may be connected to the PC using either an RS232 or IEEE488 interface.

  • Page 12: What Is Iec61000-3

    Today almost every product - computers, television and audio equipment, lamp dimmers, variable speed motor control in portable tools and washing machines, (the list is almost endless) - uses some form of electronic power supply capable drawing a highly distorted (non-sinusoidal) current.  Voltech Instruments Page 6 VPN 98-025/7...
  • Page 13 IEC61000-3 S IEC61000-3? OFTWARE FOR INDOWS ANUAL As an example, the simple rectifying circuit seen at the input to many switch-mode power supply designs presents a highly distorted load, which draws current only at the peak of the voltage waveform. Voltage Current Supply...
  • Page 14 It also specifies two tests for the voltage disturbance produced by load currents flowing in a given source impedance: a maximum voltage deviation test and a flicker test; these should be applied to all equipment.  Voltech Instruments Page 8 VPN 98-025/7...

  • Page 15: Test Equipment Required

    IEC61000-3 S IEC61000-3? OFTWARE FOR INDOWS ANUAL 2.2. QUIPMENT EQUIRED The following circuits show examples of how to connect the test equipment when testing products to the IEC61000-3 specifications: Full Compliance Testing Full compliance testing is required by test laboratories offering traceable certification to customers that their products meet the required standard.
  • Page 16 The Voltech ‘PM3000ACE-002’with version 2.19 firmware or greater is recommended for full compliance testing. Impedance Network The Voltech ‘IEC Reference Impedance Network’ should be used. It is equipped with a shorting link to allow you to switch out the impedance (when measuring the current harmonics) without rewiring.
  • Page 17 Interface Product AC Source Under Test Power Analyzer Again, you may use the Voltech ‘PM3000ACE-002’ or ‘PM3300-002’ Analyser, though any version of the PM3000A or PM3300 is suitable for pre- compliance work. Impedance Network Not needed, as the PM3000A Analyser...
  • Page 18 Wiring Without the measurement of voltage drop across the Impedance Network, the requirement for very low impedance wiring can be relaxed slightly. Less than 100mΩ of wiring impedance will be adequate.  Voltech Instruments Page 12 VPN 98-025/7...

  • Page 19: Equipment Classification - 2001 Standard

    • Personal computers and personal computer monitors; • Television receivers Class D limits are reserved for equipment that, by virtue of: • Number in use; • Duration of use; • Simultaneity of use; • Power consumption;  Voltech Instruments VPN 98-025/7 Page 13...
  • Page 20 INDOWS ANUAL • Harmonic spectrum including phase. Can be shown to have a pronounced effect on the public electricity supply system. Such equipment 'may be reclassified in a future edition of the standard.'  Voltech Instruments Page 14 VPN 98-025/7...
  • Page 21 5 Limits met? Conforms Professional May require permission to connect. equipment? See IEC61000-3-4 Does not conform Please refer to the latest available version of the standard before making conformity decisions based on this flowchart.  Voltech Instruments VPN 98-025/7 Page 15...

  • Page 22: Limits

    Notes: 1) For Class A and B, the limits are specified as a number of Amps. 2) For Class C the limits refer to a percentage of the fundamental. λ = the power factor.  Voltech Instruments Page 16 VPN 98-025/7...
  • Page 23 IEC61000-3 S IEC61000-3? OFTWARE FOR INDOWS ANUAL For Class D, the limits vary with the power consumed, and are specified as either the mA/W limit, or the Class A limit, whichever is the smaller.  Voltech Instruments VPN 98-025/7 Page 17...

  • Page 24: Installation

    Flicker: 5kb per 10 minutes) IMPORTANT: Your Voltech IEC61000-3 software operates in ‘Real Time’. This means that during execution of a test, limits and results are being computed and displayed simultaneously. The demands of this type of electrical test and analysis mean that a large amount of data must be transferred quickly from your Voltech Analyser to the host PC.

  • Page 25: Ieee 488 Interface Cards Supported

    Voltech model numbers: PM3000A, PM3000A-001, PM3000A-002 PM3300, PM3300-002 with firmware Version 1.67 or above. The Firmware version number is shown on the analyzers’ display during power up. Please contact Voltech or your local agent should you require a firmware upgrade.  Voltech Instruments...

  • Page 26: Installing The Software To Your Pc

    C:\Program Files\Voltech Instruments\Voltech IEC 61000 Software for PM3000. You may choose an alternative drive / directory, when prompted during the installation process. A copy of this user manual can also be found in the “<drive>\PM3000ACE Information\IEC Harmonics & Flicker Software” directory.  Voltech Instruments...

  • Page 27: Registering The Software

    • Look at the registration details found under 'Registration' from the 'Help' menu. This dialogue will display an 'ID Code’, which is unique to that PC installation. (Select 'Register' if no ID code is shown)  Voltech Instruments VPN 98-025/7 Page 21...

  • Page 28: Transferring The Software To A Different Pc

    RANSFERRING THE OFTWARE TO A IFFERENT The software is licensed for use on one PC only. At Voltech's discretion it is possible to occasionally transfer the licence to a different PC. To transfer the licence: • Install a copy of the software on the new PC.

  • Page 29: Setting Up Your Ieee488 Interface Card

    • Insert the disk labelled ‘Driver488/NI’ into drive A • From the Windows Program Manager, using the mouse Pull down the File menu Click on Run • In the Run dialogue box, on the Command Line type A:\WINDOWS\SETUP  Voltech Instruments VPN 98-025/7 Page 23...
  • Page 30 C:\WINDOWS\SYSTEM.INI • Find the line containing the string ‘vdmad’, and comment it out by placing a semicolon at the beginning of the line. • Immediately below this line, insert the new line DEVICE=C:\WINDOWS\IEEE488\VDMAD.386  Voltech Instruments Page 24 VPN 98-025/7...
  • Page 31 • Switch on the PC and start Windows. • Use the Windows File Manager to copy the file GPIB.DLL from A:\CECDRIVE to C:\WINDOWS\SYSTEM. • After the copy has finished, you can run the IEC61000-3 for Windows Software.  Voltech Instruments VPN 98-025/7 Page 25...

  • Page 32: Getting Started

    4. G ETTING TARTED 4.1. TARTING THE OFTWARE Installing software will create a program shortcut in the ‘Voltech Software’ program group. Click on IEC 61000 Software' to start the software. 4.2. ETTING P THE QUIPMENT To test products to IEC61000-3, you will probably set up a test rig similar to the one shown below.

  • Page 33: Set-Up Power Analyzer And Ac Source Communications

    One easy way to connect break the conductor carrying the power to the equipment under test is to use one of Voltech’s Break Out boxes. They come with a variety of different outlet types and provide an easy way to connect your equipment under test while making easy connections for voltage and current.
  • Page 34 OK button. Having set up the communications interface for the Power Analyzer, clicking OK will return you to the Top Level menu, from where you can select Setup Communications AC Source  Voltech Instruments Page 28 VPN 98-025/7...
  • Page 35 ETTING TARTED to similarly set up the communications interface for the test source. (This obviously would not be necessary if you were using the available mains supply instead of a programmable ac source.)  Voltech Instruments VPN 98-025/7 Page 29...

  • Page 36: Setup Ac Source

    Using the normal mains (AC line) supply or manually controlling an AC Source Select 'Mains' (AC line) and click on 'OK'. The software will prompt for AC Source ON and OFF during testing. Automatic control of a programmable AC Source  Voltech Instruments Page 30 VPN 98-025/7...
  • Page 37 'Edit AC Source'. For both of the above, you will see the same Configure AC Source dialogue. To delete a source, first select it and then choose 'Delete AC Source' Configuring an AC Source  Voltech Instruments VPN 98-025/7 Page 31...
  • Page 38 If this box is checked, the software will prompt for confirmation that you want the source turned off at the end of the test. In this way the source can be left on permanently.  Voltech Instruments Page 32 VPN 98-025/7...

  • Page 39: Power Analyzer Shunt And Scaling

    If the transformer is not 1:1, you should enter the appropriate current (or voltage) scaling factor before clicking on OK. If you are using a current shunt external to the Power Analyzer, then select the External button,  Voltech Instruments VPN 98-025/7 Page 33...

  • Page 40: Entering A New Product

    Let us assume that the particular new product is a Power supply called PS123. To enter the new product PS123: From the Top Level menu select (using the mouse), Product to bring up the Product Description dialogue box.  Voltech Instruments Page 34 VPN 98-025/7...
  • Page 41 Similarly, for the Title, you can again use any of the keyboard characters in any order, but alpha-characters are restricted to upper case only. Having entered the required data, click on the OK button, to move to the next dialogue box:  Voltech Instruments VPN 98-025/7 Page 35...
  • Page 42 • Which Channel of the PM3000A or PM3300 will be used for measurement (Channel 1). (The data in parenthesis are the values chosen in the case of PS123)  Voltech Instruments Page 36 VPN 98-025/7...

  • Page 43: Configuring A Fluctuating Harmonics Test

    Once the dialogue entries are complete, click on 'Ok' and close the product configuration dialogue. The 'product' is now ready to test. Class C Limits There are three possible types of limit that can be applied to Class C of equipment.  Voltech Instruments VPN 98-025/7 Page 37...
  • Page 44 0 degrees.' The IEC software contains sophisticated proprietary algorithms to automatically check the waveform accordingly. See the 'Waveform check' operating instructions below. Class C <25W 'Waveform' limits.  Voltech Instruments Page 38 VPN 98-025/7...
  • Page 45 This waveform can then be used to check if Class C 'by waveform' limits can be used by pressing the space bar. The markers show the angular position of current 'flow start', 'last peak' and 'flow stop'.  Voltech Instruments VPN 98-025/7 Page 39...
  • Page 46 • measure the 1.5s smoothed active input power in each DFT time window; • determine the maximum of the measured values of power from the DFT time windows over the entire duration of the test.  Voltech Instruments Page 40 VPN 98-025/7...
  • Page 47 Class A, B or D is selected. The power factor is defined to be the ratio of volt-amperes to watts obtained from the same DFT measurement window as the value for the fundamental component of current.  Voltech Instruments VPN 98-025/7 Page 41...

  • Page 48: Performing A Harmonics Test

    In accordance with the standards, the first 10 seconds of the test will be ignored. The equipment under test should be switched on or - depending on the equipment behaviour- before the time that you click start.  Voltech Instruments Page 42 VPN 98-025/7...
  • Page 49 At the end of the test the software will automatically reset the analyzer and AC Source. (If you are using a manual AC Source you will be prompted to switch it off) You must then save the results using the filename and directory of your choice.  Voltech Instruments VPN 98-025/7 Page 43...

  • Page 50: Changing Test Details

    HANGING ETAILS When a fluctuating harmonics result is open (see below) the test details (Class limit and user entered data) may be changed at any time by selecting 'Result', 'Change Test Details…' .  Voltech Instruments Page 44 VPN 98-025/7...

  • Page 51: Viewing Results

    ESULTS At the end of a test or by opening a result several different result and diagnostic views are available. To open a previously saved result, select 'Result', 'Open' to see this dialogue:  Voltech Instruments VPN 98-025/7 Page 45...

  • Page 52: Viewing Fluctuating Harmonics Results

    4.11. IEWING LUCTUATING ARMONICS ESULTS The default view that is opened is the 'Summary Results' view. The views available below the 'View' menu are described below.  Voltech Instruments Page 46 VPN 98-025/7...
  • Page 53 This is a summary test report showing the overall test PASS / FAIL together with all the product and test details. The first 3 sections of this report will automatically appear at the top of the printout of any of the other result views available.  Voltech Instruments VPN 98-025/7 Page 47...
  • Page 54 1 but not limit 2 and that the maximum reading has not exceeded limit 2 resulting in a FAIL for harmonic 5. See the reference information for more details.  Voltech Instruments Page 48 VPN 98-025/7...
  • Page 55 Linear Worst Case Shows the maximum amplitude of each of the individual smoothed harmonics. Average Vs Limit 1 Shows the average value of each harmonic compared to Limit 1. A red bar indicates a failure.  Voltech Instruments VPN 98-025/7 Page 49...
  • Page 56 'Normalized' view, Limit 1 is scaled to equal 1 and the same scale factor is used to display Limit 2 and the worst case harmonic. This view shows how close a harmonic is to its limit, irrespective of the size of the limit.  Voltech Instruments Page 50 VPN 98-025/7...
  • Page 57 This view shows each of the 16 cycle block readings (as above) with the limits normalised. This view shows how close a harmonic is to its limit, irrespective of the size of the limit.  Voltech Instruments VPN 98-025/7 Page 51...
  • Page 58 Click anywhere on the trace to re-position the marker. Harmonic 7 Reading 19 0.103617 Amps Use the < (less than) and > (greater than) keyboard keys to view the different harmonics.  Voltech Instruments Page 52 VPN 98-025/7...
  • Page 59 See the reference information for definitions of fundamental current and power factor. Fundamental current and power factor are used to calculate limits for some Class C tests. The maximum measured fundamental current and power  Voltech Instruments VPN 98-025/7 Page 53...
  • Page 60 Source Qualification This is a table view of the source voltage, frequency and harmonic content. Each parameter is allocated a PASS or FAIL according to the requirements of the standard.  Voltech Instruments Page 54 VPN 98-025/7...

  • Page 61: Performing A Repeatability Test

    The repeatability test compares all the harmonic results for each harmonic from one set of results to every other to see if they are within 5%. Harmonics less than 0.6% of the input current or less than 5mA are ignored.  Voltech Instruments VPN 98-025/7 Page 55...
  • Page 62 PASS or FAIL for repeatability. If the test fails, some of the maximum differences are shown. Should the repeatability test fail, ensure that the results selected refer to the same product tested under identical conditions.  Voltech Instruments Page 56 VPN 98-025/7...

  • Page 63: Performing A Flicker Test

    Again, it will be assumed that you are using the available Mains supply. To set up the parameters for the flicker measurement: From the Top Level menu, using the mouse, select Product Configure At the next dialogue box:  Voltech Instruments VPN 98-025/7 Page 57...
  • Page 64 The dt limit is 500mS (the time for which the voltage characteristic exceeds a voltage change of 3.3%) The dmax limit is: a) 4% without additional conditions b) 6% for equipment that is: - Switched manually - Switched automatically > twice per day  Voltech Instruments Page 58 VPN 98-025/7...
  • Page 65 When you have entered all the data, click on the OK button to return to the Configure display shown above, and from that, click on the OK button again to return to the Top Level display.  Voltech Instruments VPN 98-025/7 Page 59...
  • Page 66 Product Under Test at the first display and click on the OK button. At the second display, ensure that the Product Under Test is switched on and has settled into steady state operation, and then click on the Start button.  Voltech Instruments Page 60 VPN 98-025/7...
  • Page 67 IEC61000-3 S OFTWARE FOR INDOWS ANUAL ETTING TARTED The measurements will commence, and displays similar to the following will be seen. When the measurements are finished you will see:  Voltech Instruments VPN 98-025/7 Page 61...
  • Page 68 > (greater than) keys to scroll through the series. If you wish to compare two or more results, from the Top Level menu, click on 'Result' and then 'Open' to bring up the Open Result dialogue box:  Voltech Instruments Page 62 VPN 98-025/7...
  • Page 69 This will close the dialogue box, and add the selected result to those already on view. To remove a result from the display, simply select that result window by clicking on it with the mouse, and then from the Top Level menu, select Result Close.  Voltech Instruments VPN 98-025/7 Page 63...

  • Page 70: Performing A Manual Switching Test

    At the end of the 24 tests, the highest and lowest values are discarded and the arithmetical average of the remaining 22 values is compared against the value used in the flicker meter setup.  Voltech Instruments Page 64 VPN 98-025/7...
  • Page 71 The values of dc and dt are shown for information only. At the end of the 24 1 minute tests, you are prompted to save the results and then the overall test result is shown. A cross indicates which two of the 24 results have been discarded.  Voltech Instruments VPN 98-025/7 Page 65...

  • Page 72: Results Printing

    'Result', 'Print Preview' to check that all is satisfactory. Then click on the Print button to start printing. Standard windows printing commands are available in the print options. All printers supported by windows drivers can be used.  Voltech Instruments Page 66 VPN 98-025/7...
  • Page 73 IEC61000-3 S OFTWARE FOR INDOWS ANUAL ETTING TARTED Print Header Option This option can be found under the Result menu. The print header will appear at the top of the page on all printouts.  Voltech Instruments VPN 98-025/7 Page 67...

  • Page 74: Results Export

    IEC1000-3 S 4.17. XITING FROM THE OFTWARE When you have finished using the IEC1000-3 Software, select Result Exit to quit the program.  Voltech Instruments Page 68 VPN 98-025/7...

  • Page 75: On-Line Help

    To access the on-line help, from the Top Level menu select Help Contents The Contents display is the starting point for many pages of on-line help, which function in the same way as any software package running under Windows.  Voltech Instruments VPN 98-025/7 Page 69...
  • Page 76 For example, click on the words Step by Step User Guide, to lead on to: At the above display, click on the words of the topic of interest, to bring up the help dialogue. Alternatively, click on the Search button to move to:  Voltech Instruments Page 70 VPN 98-025/7...
  • Page 77 Show Topics button. Select a topic from the lower list, and click on the Go To button to bring up the required help text. When you have finished with the on-line help,  Voltech Instruments VPN 98-025/7 Page 71...
  • Page 78 IEC61000-3 S OFTWARE FOR INDOWS ANUAL select File ->Exit to return to the IEC61000-3 Software Top Level menu bar.  Voltech Instruments Page 72 VPN 98-025/7...

  • Page 79: Reference Information

    Measurements of POHC and THC are also required for comparison with the limits and to determine test conditions. These measurements are then compared to the limits in very specific ways.  Voltech Instruments VPN 98-025/7 Page 73...
  • Page 80 16-cycle (320mS @50Hz) block of the measurement and smooth them with a 1.5 s time constant filter. For all these individual values of data, disregard small values and compare to 150% of the relevant  Voltech Instruments Page 74 VPN 98-025/7...
  • Page 81 POHC calculated from the limits. • Condition (1) is still met. The combination of Voltech PM analyzer and associated software perform all the necessary measurements in strict accordance with the standards and present the results in an easy to understand graphical form.

  • Page 82: Glossary Of Terms

    This value shall be used for establishing limits during emissions tests when limits are specified in terms of power. In order not to specify a power at which limits change  Voltech Instruments Page 76 VPN 98-025/7...
  • Page 83 IEC61000-3-2 2001 Power Factor The power factor is used to calculate some Class C limits. This field is inactive when Class A, B or D is selected.  Voltech Instruments VPN 98-025/7 Page 77...
  • Page 84 'emission tests shall be conducted with the user's operation controls or automatic programs set to the mode expected to produce the maximum THC.' Maximum THC may also be used to determine the observation period for 'Long Cyclic' equipment.  Voltech Instruments Page 78 VPN 98-025/7...

  • Page 85: Equipment Without Limits

    Symmetrical control methods which are prone to produce harmonics of low order (n<40) in the input current may be used for the control of the power  Voltech Instruments VPN 98-025/7 Page 79...
  • Page 86 Class A. Even though asymmetrical controls and half-wave rectification are permitted under the conditions given above, the equipment shall still comply with the harmonic requirements of this standard.  Voltech Instruments Page 80 VPN 98-025/7...

  • Page 87: Iec61000-3-2 2001 Harmonics Test Duration

    THC determined (see 'Other data plot'). Repeat testing of equipment could than be tested using a 2.5 minute duration centred on the point when the equipment produces the highest THC.  Voltech Instruments VPN 98-025/7 Page 81...

  • Page 88: Harmonic Test Conditions Iec61000-3-2 2001

    A radio frequency signal modulated in accordance with C 2.2.1 shall be supplied by a test generator and the receiver shall be adjusted to display a picture with appropriate settings for brightness, contrast and sound level in accordance with C 2.2.2.  Voltech Instruments Page 82 VPN 98-025/7...
  • Page 89 2 cd/m². The magenta bar corresponds to 30 cd/m². The volume control is set in such a manner that one-eighth of rated output power is obtained, measured at the loudspeaker terminals, at a frequency of  Voltech Instruments VPN 98-025/7 Page 83...
  • Page 90 Measurements shall be made in a draught-free atmosphere and at an ambient temperature within the range from 20 to 27 deg C. During measurement the temperature shall not vary by more than 1K.  Voltech Instruments Page 84 VPN 98-025/7...
  • Page 91 Where these components have not been approved separately or do not comply, the luminaire shall be tested and shall comply.  Voltech Instruments VPN 98-025/7 Page 85...
  • Page 92 2.2.9 of IEC 60335-2-2. The control is set to a firing angle of 90° ± 5°, or if controlled by steps, to that step closest to 90°. Test conditions for washing machines  Voltech Instruments Page 86 VPN 98-025/7...
  • Page 93 For ITE systems designed for use with a manufacturer-supplied power distribution system, i.e. transformers, UPS, power conditioner etc., compliance with the limits of this Standard shall be met at the input to the power distribution system. Test conditions for induction hobs  Voltech Instruments VPN 98-025/7 Page 87...

  • Page 94: Flicker Test Conditions Iec61000-3-3 2001

    • For motors, locked-rotor measurements may be used to determine the largest rms voltage change, dmax, occurring during motor starting.  Voltech Instruments Page 88 VPN 98-025/7...
  • Page 95 Diameter of the Height of the pot(mm) Quantity of water(g) hotplate(mm) about 140 1000+/-50 about 140 1500+/-50 about 120 2000+/-50 Possible losses by evaporation have to be compensated for during the time of measurement.  Voltech Instruments VPN 98-025/7 Page 89...
  • Page 96 Baking oven/grill combinations The oven/grill combination shall be tested empty with the door closed. Adjust the control so that a thermocouple fixed in the geometric centre  Voltech Instruments Page 90 VPN 98-025/7...
  • Page 97 Luminaires with higher ratings, which cannot comply with this part of IEC61000, shall be subject to conditional connection in accordance with IEC61000-3-11. Ballasts are deemed to be part of luminaires and are not required to be tested.  Voltech Instruments VPN 98-025/7 Page 91...
  • Page 98 Refrigerators shall be operated continuously with the door closed. Adjust the thermostat to the mid-value of the adjusting range. The cabinet shall be empty and not heated. The measurement shall be made after a steady state has been reached.  Voltech Instruments Page 92 VPN 98-025/7...
  • Page 99 For hand held hairdryers Plt shall not be evaluated. To evaluate Pst, switch on the hairdryer and allow to operate continuously for 10 minutes or until it switches off automatically, in which case the general observation period applies.  Voltech Instruments VPN 98-025/7 Page 93...
  • Page 100 30 seconds after changing the water flow-rate. NOTE - It may be sufficient to calculate Pst. i value on the base of a measurement period of only 1 min.  Voltech Instruments Page 94 VPN 98-025/7...
  • Page 101 7% limit for manual switching using the 24-measurement method. Additionally, equipment designed to be used for the Manual Metal Arc (MMA) process, Pst and dc values shall be evaluated according to the procedures defined in the standard.  Voltech Instruments VPN 98-025/7 Page 95...
  • Page 102 IEC61000-3 S EFERENCE NFORMATION OFTWARE FOR INDOWS ANUAL Notes  Voltech Instruments Page 96 VPN 98-025/7...

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