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Fluke 1744 User Manual

Fluke 1744 User Manual

Power quality logger
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1744/1743
Power Quality Logger
Users Manual
PN 2560353
April 2006 Rev.1, 6/06
© 2006 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 1744

  • Page 1 ® 1744/1743 Power Quality Logger Users Manual PN 2560353 April 2006 Rev.1, 6/06 © 2006 Fluke Corporation, All rights reserved. Printed in USA All product names are trademarks of their respective companies.
  • Page 2 Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.
  • Page 3 à offrir une garantie plus étendue ou différente au nom de Fluke. Le support de garantie est offert uniquement si le produit a été acquis par l’intermédiaire d’un point de vente agréé par Fluke ou bien si l’acheteur a payé...
  • Page 4 Vertriebsstelle erworben oder der jeweils geltende internationale Preis gezahlt wurde. Fluke behält sich das Recht vor, dem Käufer Einfuhrgebühren für Ersatzteile in Rechnung zu stellen, falls der Käufer das Produkt nicht in dem Land zur Reparatur einsendet, in dem er das Produkt ursprünglich erworben hat.
  • Page 5 Fluke autorizzato. Sono esclusi i fusibili, le pile monouso e i prodotti che, a parere della Fluke, siano stati adoperati in modo improprio, alterati, trascurati, contaminati o danneggiati in seguito a incidente o condizioni anomale d’uso e maneggiamento.
  • Page 6 A obrigação da Fluke no tocante a esta garantia é limitada, a critério da Fluke, à devolução da importância correspondente ao preço pago pelo produto, a consertos gratuitos, ou à...
  • Page 7 Fluke. El soporte técnico en garantía está disponible sólo si el producto se compró a través de un centro de distribución autorizado por Fluke o si el compra- dor pagó el precio internacional correspondiente. Cuando un producto comprado en un país sea enviado a otro país para su reparación, Fluke se reserva el derecho de facturar al Comprador los...
  • Page 8 有限担保和有限责任 Fluke 担保在正常使用和保养的情况下，其产品没有材料和工艺上的缺陷。 两年的担保期间由产品发货之日算起。部件、产品修理和服务的担保期限为 90 天。 本担保仅限于 Fluke 授权零售商的原购买人或最终用户，并且不适用 于一次性电池、电缆接头、电缆绝缘转换接头或 Fluke 认为由于误用、改装、 疏忽、污染及意外或异常操作或处理引起的任何产品损坏。Fluke 担保软件能 依照功能规格正常运行 90 天，并且软件是记录在无缺陷的媒介上。Fluke 并不 担保软件毫无错误或在运行中不会中断。 Fluke 授权的零售商应仅对最终用户就新的和未使用的产品提供本担保，但 无权代表Fluke 公司提供额外或不同的担保。 只有通过 Fluke 授权的销售店购 买的产品或者买方已经按适用的国际价格付款才能享受 Fluke 的担保支持。 在一国购买的产品需在他国修理时，Fluke 有权向买方要求负担重大修理/零 件更换费用。 Fluke 的担保为有限责任，由 Fluke 决定是否退还购买金额、免费修理或更换 在担保期间退还 Fluke 授权服务中心的故障产品。 如需要保修服务，请与您就近的 Fluke 授权服务中心联系，获得退还授权信息；...

  • Page 9: Table Of Contents

    Table of Contents Title Page Introduction ..................1 Information and PC Software CD ............. 1 Logger Power Supply ............... 2 Power Interruptions................2 Introduction to the Logging Functions..........2 Symbols .................... 4 Safety Instructions ................4 Qualified Personnel................6 Standard Equipment and Optional Accessories ........ 6 Features.....................
  • Page 10 1744/1743 Users Manual Min/Max Values................30 Voltage Interruptions..............31 Voltage Dips and Swells .............. 32 Voltage Harmonics................32 Current Harmonics ................33 Mains Signaling................33 THDV – In Function A..............34 Calculation of THD in Measuring Function P......35 Flicker ..................35 Unbalance..................
  • Page 11 (continued) Contents Timeplot diagram................60 UNIPEDE DISDIP Table.............. 61 Cumulative Frequency – Harmonics..........62 Index...
  • Page 12 1744/1743 Users Manual...

  • Page 13: List Of Tables

    List of Tables Table Title Page Symbols....................4 Standard Equipment ................7 Optional Accessories................7 1744/1743 Power Quality Logger - Controls and Indicators ..............9 Test Lead Markings................14 Measuring Ranges................27 Logging Parameters - Overview............46...
  • Page 14 1744/1743 Users Manual...
  • Page 15 List of Figures Figure Title Page 1743 and 1744 Power Quality Loggers ..........3 1744/1743 Power Quality Logger - Front View......... 8 Supplying Operating Power to the Logger ......... 13 Logging in a 3-Phase 4-Wire (Wye) System........18 Logging in a 3-Phase 3-Wire (Delta) System........19 Single Phase Logging.................
  • Page 16 1744/1743 Users Manual viii...

  • Page 17: Introduction

    Note This manual also refers to the 1744 or 1743 Power Quality Logger simply as “the Logger.” You’ll prepare the Logger for use with the included PQ Log software CD. You...

  • Page 18: Logger Power Supply

    You graphically or numerically evaluated measured values with PQ Log. The Model 1744 has two types of logging functions: logging function A (Advanced) and logging function P (Power). Function A is the full set of parameters, and function P provides logging capability optimized for load studies and basic power logging.
  • Page 19 L 1 /A 660V L 2 /B 88 -660V L 3 /C 45-65 Hz 100 -350V 830 V MAX CAT 5 VA 600 V CAT 300 V CAT 1743 POWER LOGGER START STOP POWER egb002.eps Figure 1. Model 1744/1743 Power Quality Loggers...

  • Page 20: Symbols

    Canadian Standards Association is the certified body used for testing compliance to safety standards. Do not dispose of this product as unsorted municipal waste. Contact Fluke or a qualified recycler for disposal. Conforms to relevant Australian Standards. Safety Instructions Please read this section carefully. It will make you familiar with the most important safety instructions for using the Logger.
  • Page 21 Power Quality Logger Safety Instructions W X Warnings • To avoid electrical shock, do not connect any part of the Logger to systems that have higher voltages to ground (earth) than are marked on the Logger. • Areas between the power company meter and the source of the distribution system are characterized as CAT IV areas.

  • Page 22: Qualified Personnel

    Trained or instructed in safety engineering standards for maintaining and using appropriate safety equipment. • Trained in first aid. Standard Equipment and Optional Accessories Table 2 lists the standard equipment for the 1744/1743 Power Quality Logger, and Table 3 lists optional accessories.
  • Page 23 (same languages as the manual) Power Cord 2561702 USB Adapter Note Power supply and voltage measuring leads are built into the 1744/1743 Power Quality Logger. Table 3. Optional Accessories Description Accessory 3-Phase Flexi Set MBX 3FLEX 3-Phase 1 A/10 A micro CT...

  • Page 24: Features

    L 2 / B 88 -660V L 3 /C 45 -65 Hz 100 -350V 830 V MAX CAT 5 VA 600 V CAT 300 V CAT 1743 POWER LOGGER START STOP POWER egb021.eps Figure 2. 1744/1743 Power Quality Logger - Front View...
  • Page 25 Power Quality Logger Safety Instructions Table 4. 1744/1743 Power Quality Logger - Controls and Indicators Item Name Description Power supply voltage range: 88-660 V ac or Power supply 100-350 VDC, 50 Hz / 60 Hz, 600 V CAT III. leads and...

  • Page 26: Power Network Configurations

    1744/1743 Users Manual Power Network Configurations You can set up the Logger to work with several power network configurations: • Single-phase voltage • Single-phase voltage, current, power • 3-phase voltage • 3-phase voltage, 3-phase current, power • 3-phase voltage, 3-phase current, neutral current, power...

  • Page 27: Using The Logger

    Logging jobs are defined using the PQ Log software, and transferred to the Logger over the RS232 cable. Each job contains the following information: • Logging function (P for Model 1743, and P or A for Model 1744) • Measuring period, defined by start and end times •...

  • Page 28: Preparing The Logger For Use

    1744/1743 Users Manual Preparing the Logger for Use Prepare the 1744/1743 Logger for use with the PQ Log software as follows (see Figure 3): 1. Connect the Logger to line power. Use the power supply cables to connect to an outlet, or to the test leads phase and neutral for Wye configurations, or any two-phase leads for delta.
  • Page 29 Power Quality Logger Using the Logger Power in Parallel Power from Wall Outlet with Test Leads Max 660 V Voltage Test Leads Voltage Test Leads Power Supply Leads Power Supply Leads CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT L 1 /A 660V...

  • Page 30: Test Leads - Markings

    4. Set up the Logging job and transfer the settings to the Logger. Test Leads – Markings The 1744/1743 Logger includes built-in, labeled test leads for voltage terminals L1 or A, L2 or B, L3 or C, and N, as well as two for the internal power supply.

  • Page 31: Logging With Voltage Converters

    Power Quality Logger Using the Logger Logging with Voltage Converters The 1744/1743 Logger includes an adjustable converter ratio that enables it to be used with voltage converters (potential transformers, or PTs). Note When logging with voltage converters, make sure the power supply cables are not connected in parallel to the voltage test leads, or the Logger’s power consumption can reduce accuracy.
  • Page 32 W Caution To avoid damage, use the 1744/1743 Power Quality Logger, only with the following nominal voltages: • Single-/3-phase, 4-wire (Wye) systems (P-N): 69 V to 480 V •...
  • Page 33 Connect the Logger as follows: Note ∆ (Delta) or Υ (Wye) measurements The 1744/1743 Logger is prepared for logging in 3-phase 4-wire (Wye) systems (P-N), or 3-phase 3-wire (Delta) systems (P-P). Please note the different types of connection and configuration in the PQ Log software.

  • Page 34: Connections In 3-Phase 4-Wire (Wye) Systems

    1744/1743 Users Manual Connections in 3-Phase 4-Wire (Wye) Systems The following figure shows the connections for logging 3-phase 4-wire (Wye) systems: CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT L 1 /A 660V L 2 / B 88 -660V L 3 / C...

  • Page 35: Connections In 3-Phase 3-Wire (Delta) Systems

    Power Quality Logger Using the Logger Connections in 3-Phase 3-Wire (Delta) Systems Figure 5 shows the connections for logging 3-phase 3-wire (Delta) systems. CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT L 1 /A 660V L 2 / B 88 -660V L 3 / C 45 -65 Hz 100 -350V 830 V...

  • Page 36: Connections For Single-Phase Logging

    1744/1743 Users Manual Connections for Single-Phase Logging Figure 6 shows the connections for logging single-phase systems. CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT L 1 /A 660V L 2 / B 88 -660V L 3 / C 45-65 Hz 100 -350V...

  • Page 37: Connections For Medium-Voltage Networks

    Power Quality Logger Using the Logger Connections for Medium-Voltage Networks In a 3-phase 3-wire (Delta) system with three separate voltage converters and three current transformers, the Logger can measure phase-phase (P-P, Delta) or phase-N (P-N, Wye). See Figure 7. Supply CURRENT INPUT MEASUREMENT INPUT SUPPLY INPUT...

  • Page 38: Phase-Phase Delta Logging

    1744/1743 Users Manual Phase-Phase Delta Logging Figure 7 shows the connections for phase-phase Delta logging. 1. Connect the voltage test leads to the outputs of the voltage transformers (VTs). 2. In PQ Log, select the measuring range with the matching nominal voltage and P-P logging.

  • Page 39: Phase-Ground, Wye-Logging

    Power Quality Logger Using the Logger Phase-Ground, Wye-Logging Figure 7 shows the Phase-Ground, Wye-Logging. Figure 9 shows typical PQ Log settings for using potential transformers (PTs) and current transformers (CTs) with a 16 kV network. egb010.bmp Figure 9. PQ Log Settings for a 16 kV Network...

  • Page 40: Logging With Two Voltage Converters And Two Current Transformers

    1744/1743 Users Manual 1. Connect the voltage test leads to the outputs of the voltage transformers (VTs). 2. In PQ Log, select the measuring range with P-N logging and matching nominal voltage. 3. Enter the correct converter/transformer ratio for current and voltage.

  • Page 41: Logging

    Power Quality Logger Using the Logger 1. Connect the voltage test leads L2 or B and N to the common ground point. 2. In PQ Log, select the measuring range with P-P logging and matching nominal voltage. 3. Enter the correct converter/transformer ratio for current and voltage. egb007.bmp Figure 11.

  • Page 42: Completing The Logging Job

    1744/1743 Users Manual • Time-activated job: The Logger starts logging as soon as the preprogrammed start time is reached, and stops at the defined end time. • Immediate job: The Logger starts logging as soon as power is on. Note the following about logging jobs: •...

  • Page 43: Evaluating The Logged Data

    6. Evaluate the data using PQ Log. For details, refer to the PQ Log manual. Methods of Logging The following section describes methods of logging using the 1744/1743 Logger. Measuring Ranges The Logger has three input ranges for each of its two connection systems: Wye connection (3-phase, 4-wire) and Delta connection (3-phase, 3-wire).

  • Page 44: Signal Sampling

    1744/1743 Users Manual egb015.bmp Figure 12. Selecting Voltage Input Ranges During Job Processing Note For P-P logging, the P-P voltage must be entered as the nominal voltage (e.g. 400 V for 230 V systems). Signal Sampling Input signals (up to three voltages and four currents) are filtered with an anti- aliasing filter, and digitized with a 16-bit A/D converter.

  • Page 45: Voltage Variations

    Power Quality Logger Methods of Logging Technical Specifications” on page 46. Voltage Variations The interval value of the voltage is defined as the mean value of the RMS values over the interval length defined in PQ Log. Averaging intervals can be set in PQ Log to the following: •...

  • Page 46: Min/Max Values

    1744/1743 Users Manual Min/Max Values Logging detects the highest and lowest voltage RMS values and the highest current RMS value during the test interval, using a minimum resolution of 10 ms. The response time can be set in PQ Log to the following: •...

  • Page 47: Voltage Interruptions

    Power Quality Logger Methods of Logging Voltage Interruptions The Logger records two types of interruptions: • All measured RMS values of input voltages that are < 1% of the nominal voltage. (This threshold can be adjusted in PQ Log.) • Interruptions >...

  • Page 48: Voltage Dips And Swells

    1744/1743 Users Manual Voltage Dips and Swells If the voltage passes the upper limit (V + 10%) or lower limit (V – 10%), the event is registered as a voltage swell or dip, respectively (thresholds are adjustable in PQ Log).

  • Page 49: Current Harmonics

    Power Quality Logger Methods of Logging Current Harmonics Current harmonics are defined as current components that have a frequency that is an integer multiple of the fundamental frequency of the line power current. Logging function A records each individual harmonic of the phase currents and the neutral current, up to the 50 order, and presents the harmonics as absolute values.

  • Page 50: Thdv - In Function A

    1744/1743 Users Manual THDV – In Function A ∑ Function A: : RMS value of harmonic frequency #n. : RMS value of the fundamental frequency. THDV: total contents of harmonics of the line power voltage as a percentage of the fundamental.

  • Page 51: Calculation Of Thd In Measuring Function P

    Power Quality Logger Methods of Logging Calculation of THD in Measuring Function P THD – Measuring Function P Function P does not measure harmonic values. − THDV Voltages: : RMS value of total signal : RMS value of the fundamental −...

  • Page 52: Unbalance

    1744/1743 Users Manual Formula for Plt Function ∑ Flicker [%] Time 12 x interval length => 1 flicker value Plt Interval length => 1 Pst egb020.eps Figure 17. Measuring Flicker Values Unbalance The ratio of negative-to-positive sequence harmonics is calculated, with the angles and magnitudes of the phase voltages taken into account.

  • Page 53: Current Logging

    Power Quality Logger Methods of Logging Current Logging The maximum values of the currents (L1 or A, L2 or B, L3 or C, and N) are measured, and the interval value of the current is calculated using the mean value over the RMS values of the interval defined in PQ Log. Logging Function A If a 3-phase current sensor is connected, the neutral current is calculated on a sample basis from the phase currents.

  • Page 54: Logger Parameters With Function P

    1744/1743 Users Manual Logger Parameters with Function P The following are the parameters of the 1744/1743 Logger with function P. ∑ ⋅ RMS value of voltage and current. Basic values on 200 ms per phase. ∑ ⋅ N: Number of samples in 200 ms intervals (2048) ∑...
  • Page 55 Power Quality Logger Logger Parameters with Function P : Active power of the phase k: Phase (k = 1, 2, 3) ∑ Absolute value of the active power ⋅ betr per interval per phase. Parameter in PQ Log: |P|. M: Number of 200 ms intervals per logging interval ∑...
  • Page 56 1744/1743 Users Manual Tangent φ total on all three phases ϕ total total total Active energy per phase and total Active power accumulated on each logging interval Note The sign of the active power P gives the direction of the power flow...

  • Page 57: Logger Parameters With Function A

    Power Quality Logger Logger Parameters with Function A Logger Parameters with Function A The following are the parameters of the 1744/1743 Logger with function A. TRMS value of voltage ∑ and current. Basic values on 200 ms per phase. ∑...
  • Page 58 1744/1743 Users Manual Active power of logging ∑ ⋅ interval per phase to 200 ms value bas j M: Number of 200 ms intervals per logging interval Total active power on all ∑ three phases total : Active power of the phase...
  • Page 59 Power Quality Logger Logger Parameters with Function A Distortion power. Basic value on 200 ms per − − phase Distortion power per ∑ ⋅ interval per phase : 200 ms value bas j M: Number of 200 ms intervals per logging interval Total distortion power on ∑...
  • Page 60 1744/1743 Users Manual Total active power of the ∑ fundamental for three ⋅ = total phases Apparent power of the fundamental per phase. Basic value for 200 ms. Apparent power of the ∑ ⋅ fundamental per phase per interval Power factor of the ϕ...

  • Page 61: Maintenance

    If the Logger gets dirty, wipe it off carefully with a damp cloth without cleaning agents. Lithium Battery The 1744/1743 Logger contains a vanadium pentoxide lithium rechargeable battery. This battery is automatically recharged during normal operation. Disposal If you discard the Logger, you must recycle it at an appropriate recycling...

  • Page 62: Technical Specifications

    1744/1743 Users Manual Technical Specifications Logging Parameters – Overview The following table gives an overview of the logging parameters. Table 7. Logging Parameters – Overview Measuring Function Voltage: mean, min, max values Current: mean, max values Neutral current N Voltage events...

  • Page 63: Maximum Number Of Intervals For Logging Function P

    Quality system Developed, designed, and manufactured according to DIN ISO 9001. Recalibration interval Fluke recommends a recalibration interval of no more than two years, depending on use. Reference conditions 23 C ± 2 K, 230 V ± 10% 50 Hz ± 0.1 Hz / 60 Hz ± 0.1 Hz...

  • Page 64: Environmental Specifications

    1744/1743 Users Manual Environmental Specifications Working temperature –10 °C to +55 °C range Operating temperature 0 °C to +35 °C range Storage temperature range –20 °C to +60 °C Reference temperature 23 °C ± 2 K range Relative humidity 10 to 90%, no condensation...

  • Page 65: Power Supply

    Power Quality Logger Technical Specifications Power Supply Functional range 88 to 660 V RMS ac absolute, 50 Hz / 60 Hz Safety EN 61010-1 600 V CAT III, 300 V CAT IV, pollution degree 2, double insulation Fuse Power supply fuse can be replaced only in service facility.

  • Page 66: Input Voltage

    1744/1743 Users Manual Input Voltage Input range V P-N: 69, 115, 230, or 480 V ac Input range V 120, 200, 400, or 830 V ac Max overload voltage 1.2 V Input range selection By job programming Connections P-P or P-N, 1- or 3-phase ≤...

  • Page 67: Current Input For Clamp

    Power Quality Logger Technical Specifications Current Input for Clamp Input signal: 0.5 V ac nominal (for I ) 1.4 V peak Intrinsic uncertainty < 0.3% of I Max. overload 10 V ac Input resistance App. 8.2 ke Current transformer Ratio : ≤ 999 kA / ≤ I Ratio selection By job programming...

  • Page 68: General Specifications

    1744/1743 Users Manual General Specifications RMS Logging Slow Voltage Variations Logging values: Mean value RMS values averaged over interval length Min, Max values Averaging with selectable averaging time from 0.5 periods to 5 s Max value Max 10 ms RMS value per interval...

  • Page 69: Power (Logging Functions A, P Only) P, S, |P

    Power Quality Logger Technical Specifications Power (Logging Functions A, P only) P, S, |P| Active power P As per EN 61036, class 2 Distorting power D As per EN 61268, class 2 (A-version only) Max value Highest value per interval Min value Smallest value per interval Phase uncertainty...

  • Page 70: Logging Function P

    1744/1743 Users Manual Logging Function P Logging Values Voltage L1 or A, L2 or B, L3 or C: phase-phase or phase-neutral: • Voltage (mean, min, and max values) • THDV (mean, and max values) • Flicker Pst, Plt • Voltage events (dips, swells, interruptions) Current L1 or A, L2 or B, L3 or C, and N: •...

  • Page 71: Logging Function A - "All" Parameters

    Power Quality Logger Technical Specifications Logging Function A – “All” parameters Logging Values All parameters for voltage quality per EN 50160: Voltage L1 or A, L2 or B, L3 or C: phase-phase or phase-neutral: • Voltage (mean, max, min values) •...

  • Page 72: Applications

    1744/1743 Users Manual Total power: • Total power P, |P|, D, S • 3-wattmeter method • 2-wattmeter method (Aron circuitry) • 2 ½ wattmeter method Applications Power quality: • Voltage quality analysis according to EN 50160 over a 1-week period (time-activated job) •...

  • Page 73: Pq Log Pc Application Software

    PQ Log PC Application Software ® PQ Log software for Windows PCs is the application for use with the 1744/1743 Power Quality Logger. The data are also available in ASCII format. Programs available for setting up the Logger: • Interval length •...

  • Page 74: Online Test

    1744/1743 Users Manual Online Test The following figure shows the online test display. egb024.bmp Figure 18. Online Test...

  • Page 75: Ascii Export

    Power Quality Logger PQ Log PC Application Software ASCII Export The following figure illustrates the ASCII export display: egb025.bmp Figure 19. ASCII Export For special cases, additional evaluations are available: • Graphic representation of measured data • Timeplot diagrams • Application oriented analysis •...

  • Page 76: Timeplot Diagram

    1744/1743 Users Manual Timeplot diagram The following figure shows a typical Timeplot diagram: egb026.bmp Figure 20. Timeplot Diagram...

  • Page 77: Unipede Disdip Table

    Power Quality Logger PQ Log PC Application Software UNIPEDE DISDIP Table The following figure shows a typical UNIPEDE DISDIP table: egb027.bmp Figure 21. UNIPEDE DISDIP Table...

  • Page 78: Cumulative Frequency - Harmonics

    1744/1743 Users Manual Cumulative Frequency – Harmonics The following figure shows a typical display of cumulative frequencies for current and voltage harmonics: egb028.bmp Figure 22. Cumulative Frequency – For Voltage and Current Harmonics...
  • Page 79 Index Logging Configurations, 10 —A— Logging input for voltages, 9 Anti aliasing filter, 28 Logging segments, 11 Apparent Power, 37 Logging with two voltage converters and two current transformers, 24 —C— —M— Completing the Logging, 26 Connecting the clip on probes, 14 Maximum nominal voltages, 6, 16 Connection modes, 27 Memory model, 11...
  • Page 80 1744/1743 Users Manual Voltage Harmonics, 32 Voltage interruptions, 31 Voltage variations, 28...

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