1. Manuals
  2. Brands
  3. Summit Manuals
  4. Data Loggers
  5. PowerSight PS3000
  6. User manual

Summit PowerSight PS3000 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
User's Manual
for
PowerSight
PS3000
Summit Technology, Inc.
Walnut Creek, CA 94597
Tel: 1-925-944-1212
Fax: 1-925-944-7126
sup port@powersight.com
http://www.powersight.com
Rev for FW 2.9f / SW 3.35
Copyright 2008 by Summit Technology

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PowerSight PS3000 and is the answer not in the manual?

Questions and answers

Summary of Contents for Summit PowerSight PS3000

  • Page 1 User’s Manual PowerSight PS3000 Summit Technology, Inc. Walnut Creek, CA 94597 Tel: 1-925-944-1212 Fax: 1-925-944-7126 sup port@powersight.com http://www.powersight.com Rev for FW 2.9f / SW 3.35 Copyright 2008 by Summit Technology...
  • Page 2 Do not use water or other conductive liquids since they may pose a safety risk. Use of this equipment in a manner not specified by Summit Technology can result in injury and voiding of warranty.

  • Page 3: Table Of Contents

    Table of Contents Introducing PowerSight............7 In a Hurry? --- The Basics of Operation ......8 Connecting to PowerSight ..........9 Voltage Test Leads................9 Current Probes ..................10 Connections to PowerSight ..............12 Introduction to Power Delivery Configurations ........14 Connecting to Single-phase Power .............16 Connecting to 120 V Outlet Adapter Box ..........17 Connecting to Multiple Single-phase Loads........18 Connecting to Split-Phase (Two-Phase) Power........19 Connecting to Three-Phase Four-Wire (Wye) Power ......20...
  • Page 4 Checking Current Levels – Using PSM..........45 Checking I Phase Sequence – Using PSM......... 46 Checking Phase Lag Angle – Using PSM........... 46 Measurement Types............48 Voltage Measurements ............... 48 Voltage Measurements in PowerSight..........49 Voltage Measurements in PSM............51 Current Measurements ..............
  • Page 5 50/60/400Hz vs DC vs Variable Frequency ........85 Changing the Frequency Measurement Mode in PowerSight.....86 Changing the Frequency Measurement Mode in PSM .......87 Always Positive Power versus Negative Power Allowed ....87 Changing the Power Measurement Mode in PowerSight ....88 Changing the Power Measurement Mode in PSM ......89 Defining Inputs..................89 Changing Input Ratios in PowerSight..........91 Changing Input Ratios in PSM ............91...
  • Page 6 Administrative Functions ..............121 Automated Data Reporting Mode ............. 123 Other Functions within PSM ......... 125 Introduction..................125 Remote Control of PowerSight............125 Setting up Administrative Features of PowerSight via PSM ..... 126 Setting Operational Features of PSM ..........126 Putting it all Together (Monitoring for the First Time) 128 Working with Graphs and Waveforms ......

  • Page 7: Introducing Powersight

    Introducing PowerSight Congratulations on your decision to buy a PowerSight 3000! You have just purchased one of the smallest and yet most powerful instruments for measuring and analyzing electric power that exists. PowerSight is four instruments in one: ♦ a data logger ♦...

  • Page 8: In A Hurry

    In a Hurry? --- The Basics of Operation If you're in a hurry, are experienced, and use good sense, you can be up and running very quickly. Review the section “Connections to PowerSight”, paying special attention to the safety warnings. You or the unit can be hurt if you don't do things right! Review the section on setting up your PS3000, “Custom Data...

  • Page 9: Connecting To Powersight

    Connecting to PowerSight Voltage Test Leads A Deluxe Voltage Probe set consisting of four leads is included with each PowerSight. Each of the voltage test leads is 6 feet (2 meters) long, with safety banana jacks at one end and safety plunger clamps at the other end.

  • Page 10: Current Probes

    Summit Technology also sells a fused voltage lead set (order DFV). The safety advantage of fused leads is that if there is a short through the insulation of a lead to ground, the fuse in the handle should quickly blow out, preventing the lead from vaporizing in an explosion of molten metal.
  • Page 11 The HA5 offers two advantages over the HA1000, but these advantages come at a cost. Its advantages are that the HA5 is a very small size (5.25 × 2.00 × 1.35 inches) and second, it offers much greater sensitivity since it reads currents from 20 milliamps to 5 amps (as compared to the HA1000 measuring 1 - 1,000 amps).

  • Page 12: Connections To Powersight

    around the conductor so that the cable from the probe drops straight down and the head rests against the conductor and is at a right angle with the conductor. The frequency response of flex probes is very good, but phase shift increases with frequency. Unlike other manufacturers’...
  • Page 13 Note: The Vn test lead is a different color from the other leads (black). Similarly, the Vn jack on PowerSight is a different color from the other ones (black). Connecting anything other than neutral or ground to the Vn jack can jeopardize your safety, the functioning of the unit, and the accuracy of the unit.

  • Page 14: Introduction To Power Delivery Configurations

    Figure 1C presents normal three-phase delta service. Voltages are usually measured from phase-to-phase. In North America, service is usually supplied as 120V, 240V, 480V, 600V, 4160V, or 12,470V. In most of the world, service is usually supplied as 381V, 5,716V, or 11,431V. Summit Technology has voltage...
  • Page 15 probes for direct connect to all of these services. Refer to figure 7 for how to connect to a delta power service. When there is no access to measuring one of the currents, figure 8 presents the 2 current approach for measuring power. This approach is also useful for measurement of an open delta circuit as described in Connections to an Open Delta Circuit (2PT/3CT)figure...

  • Page 16: Connecting To Single-Phase Power

    Connecting to Single-phase Power Figure 2 presents the basic connections to a single-phase system. Be sure to follow the safety warnings of the previous sections before making the connections. Clamp your A phase current probe onto the "Hot" wire. Make a metallic connection to neutral with the Vn voltage...

  • Page 17: Connecting To 120 V Outlet Adapter Box

    connections to PowerSight are as shown in figure 2, Van will be some relatively large number like 120 volts and Vcn will be a small voltage like 3 volts. If you then reverse the ground and neutral leads, Van will now read slightly less, like 117 volts. If "hot" and "neutral"...

  • Page 18: Connecting To Multiple Single-Phase Loads

    Note: The 120ADPa is rated for continuous duty of up to 15 Arms. Do not exceed this continuous load. To evaluate the power usage of an appliance, simply plug the appliance into the top of the 120 V Outlet Adapter Box after the other connections have been made and verified.

  • Page 19: Connecting To Split-Phase (Two-Phase) Power

    In this configuration, the voltage, current, and power of each load can be displayed directly or graphed on your PC using our PSM software. Connecting to Split-Phase (Two-Phase) Power Fig 5 shows the recommended connections to a split-phase system as found in commercial and residential facilities. They may be used to supply two single phase...

  • Page 20: Connecting To Three-Phase Four-Wire (Wye) Power

    In this configuration, a reading of Van is of hot-neutral and Vbn is hot2-neutral. In does not need to be connected. The power associated with one hot is measured as phase A, the power of the other hot is measured as phase B. In phase-neutral measurement mode, the voltage readings will be from hot-to-neutral.
  • Page 21 In a wye system, each phase is essentially independent of each other. For this reason, the power factor of each phase has direct meaning, but the total power factor is less meaningful. Most commercial wiring and newer industrial wiring is in this wye configuration.

  • Page 22: Connecting To Three-Phase Three-Wire (Delta) Power

    Connecting to Three-Phase Three-Wire (Delta) Power Figure 7 presents recommended connections to a three-phase system with voltages referenced to each other instead of to neutral. This is a "delta", "phase- phase", or “three- phase three-wire” configuration. Be sure to follow the safety warnings of the previous sections before...

  • Page 23: Connecting To Three-Phase Four-Wire Delta Power

    A variation of delta is “four-wire” (or “center-tapped”) delta (see figure 1D). In this configuration, if the main interest is in measuring phase-neutral voltage, then connect the neutral voltage to the neutral input for more accurate voltage readings Connecting to Three-Phase Four-Wire Delta Power Figure 6 presents the recommended connections to a three-phase delta system where a neutral is provided from the center of one of the phases.

  • Page 24: Connections Using 2 Current Approach

    Connections Using 2 Current Approach In the previous sections, the approach used to measure power has been based on determining the power of each phase and then summing them to get the total power. The 2 current approach (figure 8) allows you to determine the total power from measuring only 2 of the 3 currents and combining them with the 3 voltages of the three-phase circuit.

  • Page 25: Connections To A 3 Ct / 3 Pt Metering Circuit

    After hooking up to the CTs and PTs, you enter the input ratios into PowerSight (see the Setting Input Ratios section) in order to record the correct values (the values on the primary side of the transformers). This approach is also called the “2 wattmeter approach” because it mimics how two single-phase wattmeters can be used to measure total three-phase power.
  • Page 26 the CTs (current transformers) and PTs (potential transformers) of the metering circuit are readily accessible for connecting to, whereas the actual load carrying cables are not the conductors carrying the load are physically too large for your current probes to fit around them...
  • Page 27 the load current is too large to be read by the current probes you have the voltage delivered to the load exceeds the 600V insulation limit of the current probes the voltage delivered to the load exceeds the 600Vrms rating of PowerSight and you do not have other high voltage probes.

  • Page 28: Connections To A 2 Ct / 2 Pt Metering Circuit

    Connections To a 2 CT / 2 PT Metering Circuit Figure 10 shows recommended connections to a metering circuit with only 2 CTs or 2 PTs. This type of metering circuit may be preferable when cost is an issue (less instrument transformers are used) or when metering a...

  • Page 29: Connections To An Open Delta (3Ct / 2Pt) Metering Circuit

    Connections To an Open Delta (3CT / 2PT) Metering Circuit In the open delta configuration, two PTs and 3 CTs are available. Follow the directions of the Connections to a 2CT / 2PT Metering Circuit section, paying attention to figure 10. You can connect Ib to the B phase CT, but you must be operating in the 2 current probe mode...
  • Page 30 The LDC also comes with in-line fuse assemblies plugged into the stackable plugs. These red assemblies contain 1000V fuses. They provide protection if a short should occur in the LDC. The two voltage leads that would normally be plugged into PowerSight are plugged into the loose ends of the in-line fuses.

  • Page 31: Measuring Multiple Parallel Conductors

    (perhaps from being cut by a panel door), a fuse quickly blows, providing added protection. Note: Do not use the LDC without the in-line fuses being connected between it and the power source. The fuses are the only circuit protection for the LDC. When the input side of the LDC is fully connected properly, plug the long DC output plug into the DC input jack of PowerSight.

  • Page 32: Measuring Currents Below The Range Of The Current Probe

    1. Put a different probe on each conductor of a given phase and then viewing the currents of each probe simultaneously (see Checking Current Levels – Using Checkout Connections section). 2. Start monitoring for 10 seconds or so and then stop monitoring (see the Starting Data Logging Stopping Data Logging...
  • Page 33 If you are using a flexible current probe, you can simply wrap it around the conductor twice in order to double the magnetic field strength. This can get it in the measurement range and it boosts the signal to noise ratio. If you use this method, set the input ratio for the current probe to 2 : 1 (see the Changing Input Ratios in PowerSight...

  • Page 34: Turning Powersight On

    The internal batteries are automatically charged when the wall- mount supply is connected to the unit (or when PowerSight is connected to the LDC accessory). The internal batteries are not to be replaced by the user. Only batteries provided by Summit Technology are to be used in PowerSight.

  • Page 35: Turning Powersight On

    Turning PowerSight On Simply press the red push-button switch on the front panel and PowerSight will be operating (pressing the button again, turns the unit off). The message that the meter is performing a system test will appear for a few seconds and then the greeting will appear. You can change this greeting at any time by following the directions in the administrative functions that are accessed by pressing the [Admin] key.

  • Page 36: Checking Out Connections Using Powersight

    Checking out Connections Using PowerSight Importance of Checking Connections and Wiring After connecting to power, it is wise to check that everything is connected correctly and that the wiring of the facility is correct. There are two primary methods for doing this. You may either send waveforms from PowerSight to your PC and visually check that all connections are correct (Checking out Connections Using...

  • Page 37: Checking Voltage Levels - Using Checkout Connections

    Current probe not fully connected to PowerSight. The current probe connector needs to be fully seated within its socket. If it is not, the reading may be 0 (resulting in a loss of about 1/3 of the power), the probe may be misidentified (resulting in current readings of a fraction or a multiple of the correct value), or the display may say “Ia input too large”...
  • Page 38 press [Yes/Accept], then the voltages of all three phases are presented on the display and are updated each second. First check that the voltage measurement mode is correct. If the measurement mode is phase- neutral, all measurement labels take the form Vxn, where "n" stands for neutral and "x" is a, b, or c depending on which phase is being presented.

  • Page 39: Check Voltage Phase Sequence - Using Checkout Connections

    secondaries while using input ratios), and 12,500V (using 15KVP probes or connected to PT secondaries while using input ratios). If one of the phases has a center tap midway through it and the center tap is connected to neutral, this is a "four-wire" or "center- tap delta"...

  • Page 40: Checking Current Levels - Using Checkout Connections

    peaks of the voltage arrive. Looking at the first phase letters, the example above shows a phase sequence of A-B-C, which is typical. If the displayed sequence is C-B-A, then it's likely that the voltage leads are connected incorrectly or that the phases are mislabeled.
  • Page 41 To determine the current phase sequence, press [Yes/Accept] when asked "Check I Phase Sequence?". The following display is typical: The order in which the currents are listed is the order in which the peaks of the current arrive. Looking at the phase letters, the example above shows a phase sequence of A-B-C, which is typical.

  • Page 42: Checking Phase Lag Angle - Using Checkout Connections

    Checking Phase Lag Angle - Using Checkout Connections Current may lead or lag voltage by as much as 90 degrees. Typically current lags voltage or may slightly lead it. The Phase Lag Angle Test displays the approximate phase angle, also known as "displacement", between voltage and current for each phase.

  • Page 43: Checking Out Connections Using Psm

    Checking out Connections using The PowerSight Manager (PSM) software is included in the cost of your PowerSight meter. You can use it to visually determine if the system connections and levels are correct. Use PowerSight’s Checkout Connections feature for a simple measurement-based approach to checking out the connections.

  • Page 44: Check Voltage Phase Sequence - Using Psm

    phase (as shown in the example), the labels will be Vab, Vbc, and Vca. Vab is the voltage potential between the A and B phases. Changing the measurement mode has a large effect on the size of the voltage readings. For instance, in a three-phase 120 volt phase-neutral (wye) system, the voltage measurements in phase- ×...

  • Page 45: Checking Current Levels - Using Psm

    An order of B-C-A or C- A-B is the same as an A-B-C sequence; the reference point just starts at a different place (for instance B-C-A is just a portion of the continuing sequence of A-B-C-A-B-C). Sometimes an order of C-B-A is correct.

  • Page 46: Checking I Phase Sequence - Using Psm

    Checking I Phase Sequence – Using PSM While still viewing all current waveforms of a three-phase system, notice how they reach their peak value. Each of the peaks should be the same distance from each other (similar to as shown in the Checking Voltage Sequence –...
  • Page 47 By the time you have gotten to this test, you have verified that the voltages and currents are reasonable sizes and that their sequences appear to be correct. Now select a view of “voltage and current” and “phase A” only. Check how much time passes between the peak of the voltage and the peak of the...

  • Page 48: Measurement Types

    Measurement Types Voltage Measurements Voltage is the difference in electromotive potential between two points. Simply stated, it is the force that generates current flow and to measure voltage, two points of connection are required. In AC circuits, this force, measured in volts, usually varies continuously and always reverses direction.

  • Page 49: Voltage Measurements In Powersight

    When measuring DC volts the RMS value is the same as the DC value. Voltage crest factor is the ratio of peak voltage of a cycle over the RMS voltage of the same cycle. Vpk Vrms . A perfect sine wave has a crest factor of 1.414 ( Maximum, minimum, and average voltage in power measurements refers to the maximum, minimum, and average of...
  • Page 50 For instance, if the average voltage between Vb and Vn is desired, press: [Volt] (to display )Van, [Volt] (to display Vbn), [More...] (to display maximum Vbn), [More...] (to display minimum Vbn), and then [More...] (to display average Vbn). Note that if PowerSight is not monitoring consumption, the maximum, minimum, and average values are the results from the last monitoring session.

  • Page 51: Voltage Measurements In Psm

    Voltage Measurements in PSM The consumption data log can record maximum, minimum, and average RMS voltage for each phase for each logging period. The summary values at the top of the screen are the maximum, minimum, and average of all the values shown on the screen. When viewing consumption waveforms, the average RMS of the cycles of the waveform is shown at the top, with the average crest factor listed below it.
  • Page 52 amperes) and its symbol is commonly “I”. In AC circuits, current often varies continuously and always reverses direction. In DC circuits, it is usually steady and never reverses direction. If the current changes in a repeating fashion, then it is called a periodic function.

  • Page 53: Current Measurements In Powersight

    In the PS3000, the present current is the RMS current calculated for the most recent second. Maximum, minimum, and average are based on these one second measurements. Current Measurements in PowerSight PowerSight performs all commonly desired measurements of current. The RMS (root mean square) currents of the A, B, and C phases and of the neutral line are available by simply pressing [Current] repeatedly.

  • Page 54: Current Measurements In Psm

    (to display Ic), [More...] (to display maximum Ic), [More...] (to display minimum Ic), and then [More...] (to display average Ic). Note that if PowerSight is not monitoring consumption, the maximum, minimum, and average values are the results from the last monitoring session. Note that when PowerSight is in 2 current mode, Ib is not measured or displayed.

  • Page 55: Power Measurements

    In addition, our Report Generator software will present maximum, minimum, and average current of each phase and neutral during any one or two intervals of time set by the user. If two time intervals are chosen, it will report the percent change and the actual change between the two intervals.

  • Page 56: Power Measurements In Powersight

    Reactive power is the square root of the difference between the squares of the apparent power and the true power: − true When the fundamental voltages and currents are in phase and no harmonic currents are present, reactive power is zero. Peak demand of the demand period is an important measurement that is covered in the Demand Period Measurements...

  • Page 57: Power Measurements In Psm

    For instance, if the maximum reactive power is desired, press: [Power] (to display watts), [Power] (to display VAR), and then [More...] (to display maximum reactive power). Power Measurements in PSM The consumption data log can record maximum, minimum, and average true power and apparent power for each phase for each logging period.

  • Page 58: Power Factor Measurements

    If trending data is being recorded and in phase-phase voltage measurement mode, the average true power and average apparent power of each phase will be displayed and recorded. If in phase-phase voltage measurement mode, the total true power and total apparent power will be displayed and recorded. The measurements of power presented on PowerSight can also be displayed in PSM by using the remote control feature.
  • Page 59 then reactive power is present. Reactive power may be the result of current lagging voltage due to the inductance of the circuit. It may also be the result of delayed harmonic currents that result form small driving harmonic voltages. A typical electronic load may have a power factor of 0.70 and yet the current may be perfectly in phase with the voltage.

  • Page 60: True Power Factor Measurements In Powersight

    Displacement power factor can be determined for each phase. Terms for these measures are: DPFa DPFb DPFc There is no such thing as total displacement power factor. Typically the displacement power factors of each phase are similar in magnitude. In addition, the following can be measured for each phase: Maximum true or displacement power factor Minimum true or displacement power factor Average true or displacement power factor...
  • Page 61 The maximum, minimum, and average power factors of the most recent monitoring session are displayed by repeatedly pressing [More...] after displaying the appropriate power factor. For instance, if the average power factor of the C Phase is desired, press: [Power Factor] (to display PFa), [Power Factor] (to display PFb), [Power Factor] (to display PFc), [More...] (to display maximum PFc), [More...] (to display minimum PFc), and then [More...] (to display average PFc).

  • Page 62: Displacement P.f. And Phase Measurements In Powersight

    voltage and current are roughly in phase, the indication may switch back and forth regularly. To get a definite indication of whether current is lagging, you need to measure displacement power factor. Displacement P.F. and Phase Measurements in PowerSight PowerSight performs all commonly desired displacement power factor measurements.
  • Page 63 In this way, by combining the [Power Factor] and [More...] keys, there are 6 displacement power factor and phase angle measurements available. The display of power factor tells you if current is leading or lagging voltage. For instance, if current lags voltage in phase A, the display will read "(Van,Ia)".

  • Page 64: Power Factor And Phase Measurements In Psm

    Power Factor and Phase Measurements in PSM The consumption data log can record maximum, minimum, and average true power factor for each phase and for total power for each logging period. The summary values at the top of the screen are the maximum, minimum, and average of all the values shown on the screen.

  • Page 65: Energy Measurements

    Energy Measurements The energy consumed is defined as the sum of the true power ∫ × over time: . If measurements are taken every true second in units of watts, then the KWH consumed during that /1000 / 3600 second is .

  • Page 66: Energy Measurements In Powersight

    The estimated energy consumed per month is the estimated energy consumed during a year, divided by 12. For instance, if 5 KWH is consumed over a 10 minute period, then the estimated energy consumed per month is × × 60 24 365 = ×...

  • Page 67: Cost Measurements

    change in energy use between the two intervals. For instance, if a comparison report is chosen and 5 KWH is consumed during the first interval of 10 minutes and 8 KWH is consumed during the second interval of 20 minutes, then the report would show: Before After Units Change Change 60.0%...

  • Page 68: Cost Measurements In Powersight

    The estimated cost per year is the elapsed cost, divided by the fraction of a year that monitoring has proceeded. For instance, if the cost is $0.50 for a 10-minute period, then the estimated cost × × 60 24 365 ×...

  • Page 69: Demand Period Measurements

    cost between the two intervals. For instance, if a comparison report is chosen and $0.50 of energy is consumed during the first interval of 10 minutes and $0.80 of energy is consumed during the second interval of 20 minutes, then the report would show: Before After Units Change Change Cost...

  • Page 70: Demand Period Measurements In Psm

    7:00 A.M, it will update the demand period at 7:15, 7:30, 7:45, 8:00, and so on. If the most power was consumed between 7:45 and 8:00, then the demand period will be displayed as 7:45. Note that even if the power peaked briefly at 7:29, the demand period would still be reported as 7:45 since more energy was consumed over that 15-minute period.

  • Page 71: Frequency Measurements In Powersight

    Present frequency Maximum frequency Minimum frequency Average frequency The present frequency is the average frequency of all of the cycles of the most recent second. The maximum frequency is the frequency of the shortest cycle (fastest repeat time) during the time of interest.

  • Page 72: Frequency Measurements In Psm

    assumption about the fundamental frequency, all voltages, currents, powers, etc. will be inaccurate. Frequency Measurements in PSM The consumption data log can record maximum, minimum, and average frequency. PowerSight determines which input channel is the source of this measured fundamental frequency. When graphed, the summary values at the top of the screen are the maximum, minimum, and average of all the values shown on the screen.

  • Page 73: Duty Cycle / Power Cycle Measurements In Powersight

    Estimated power cycles per day Estimated power cycles per week. Duty cycle, measured in percent, is what portion of the time a unit is turned on. The average “on” time is the average length of time that the unit stays “on”. The average “off” time is the average length of time that the unit stays “off”.

  • Page 74: Time And Capacity Measurements

    each second. These estimates are available by repeatedly pressing [More...] after displaying the total number of power cycles. For instance, if you are monitoring an air conditioning system and wish to know how many times per hour the unit turns on and off, press: [On/Off Cycles] until the number of power cycles during monitoring is displayed and then [More...] to display power cycles per hour.

  • Page 75: Time And Capacity Measurements In Powersight

    those in the log, since the monitoring session is for a longer period of time than the logging session. The time remaining to fill the consumption log is how much longer the logging session can continue before the log is filled and logging either stops or begins writing over the oldest data.

  • Page 76: Time And Capacity Measurements In Psm

    Time and Capacity Measurements in PSM The Data Setup window allows you to review and change many of the time and capacity measurements. The time capacity of the consumption log, the record capacity of all the logs and the programmed start and stop time of monitoring (if one exists) can be reviewed and changed.

  • Page 77: Harmonic Measurements

    The number of records used in any of the log types can be determined by attempting to receive the log data from an attached PowerSight. The measurements of time and capacity presented on the PS3000 can also be displayed in PSM by using the remote control feature. Harmonic Measurements French mathematician Jean Baptiste Fourier determined 150 years ago that any periodic waveform can be mathematically...
  • Page 78 the fundamental frequency or as an actual RMS amp value. For instance if the fundamental frequency has a current of 120 amps and the 5 harmonic has an amplitude of 30 amps, then the 5 harmonic has a magnitude of 30 amps or a relative magnitude of 50%.

  • Page 79: Harmonic Measurements In Powersight

    example above for calculating THD, the total current of the waveform is: Irms 138.3 × × × × ⎛ ⎞ ⎛ ⎞ ⎛ ⎞ ⎛ ⎞ 120 1 60 3 30 5 15 7 factor ⎜ ⎟ ⎜ ⎟ ⎜ ⎟...

  • Page 80: Disturbance (Transient) Measurements In Powersight

    The measurements of voltage presented on the PS3000 can also be displayed in PSM by using the remote control feature. In addition our Report Generator software will present average THD-F for voltage and current of each phase during any one or two intervals of time set by the user.
  • Page 81 a total of how many transients occurred during the disturbance monitoring session.

  • Page 82: Measurement Modes

    Measurement Modes Introducing Measurement Modes PowerSight performs so many measurements that it is quite a challenge to keep the instrument easy to use. Often, you make measurements on one general type of system. There is no need to complicate your task by PowerSight asking you to make the same choices over and over.
  • Page 83 Wye systems are usually measured using phase-neutral voltages. Delta systems are usually measured using phase-phase voltages. On occasion, you may wish to measure phase-phase voltages in a wye system if the equipment that you are monitoring bridges two hot voltages (like a single- phase air conditioner running at 240 V). In a perfectly balanced three-phase system, the phase-neutral voltage is equal to the phase-phase voltage divided by the square root of 3 (Vpn=Vpp/1.732).

  • Page 84: Changing The Voltage Measurement Mode In Powersight

    Changing the Voltage Measurement Mode in PowerSight To determine which voltage measurement mode PowerSight is in, simply press the [Measure Mode] key of PowerSight and read the display. To change the voltage measurement mode from what is displayed, press the [No/Reject] key and then press [Yes/Accept] when the desired measurement mode is displayed.

  • Page 85: 50/60/400Hz Vs Dc Vs Variable Frequency

    50/60/400Hz vs DC vs Variable Frequency There are 5 frequency measurement modes in the PS3000: Fixed 50 Hz and DC Fixed 60 Hz and DC Fixed 400 Hz and DC Variable Frequency from 45 – 66 Hz Variable Frequency from 360 – 440 Hz These modes allow making measurements on virtually any power system in the world.

  • Page 86: Changing The Frequency Measurement Mode In Powersight

    PowerSight can also measure the true RMS of DC and rectified signals that are also connected while in this measurement mode. It is generally recommended that you operate in one of the fixed frequency modes whenever you can. One reason is that there is the potential of slight errors in measuring the frequency of certain waveforms.

  • Page 87: Changing The Frequency Measurement Mode In Psm

    Changing the Frequency Measurement Mode in PSM To determine the frequency measurement mode using PSM, connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Input Frequency box or operate in Remote Control mode and press the key combinations described above.

  • Page 88: Changing The Power Measurement Mode In Powersight

    power. This automatic correction is an assistance for our customers, allowing them to concentrate on readings rather than connections under most circumstances. Accuracy may be slightly better when the probe is oriented correctly, but for most measurements this added accuracy is of no significance with PowerSight.

  • Page 89: Changing The Power Measurement Mode In Psm

    The power measurement mode that you choose will stay in effect until you change it. It will not be changed by turning PowerSight off. Changing the Power Measurement Mode in PSM To determine the power measurement mode using PSM, connect PowerSight to PSM and then either go to the Setup Data menu and read what appears in the Power Mode box or operate in Remote Control mode and press the key combinations described...
  • Page 90 the PT with voltage probes, you obtain readings proportional to the primary side of the CT or PT. Entering the ratios of the CT and/or the PT into PowerSight allows all recorded values to be scaled appropriately. PowerSight then records primary values, although it is connected to the secondary.

  • Page 91: Changing Input Ratios In Powersight

    Changing Input Ratios in PowerSight If you wish to set or change the input ratios in PowerSight, press the [Calibra] key once. The display will say “Set Input Ratio?” Press [Yes/Accept]. If you are setting a current input ratio, press [Yes/Accept]. If you are setting a voltage input ratio, press [No/Reject] and then [Yes/Accept].
  • Page 92 parameters, double-click on the line you wish to change and make the change. Be sure to click “OK” when you are done and save the data setup to a file and/or to PowerSight. As an example, suppose you wish to record the primary of a permanently installed CT while clamped onto the secondary with your Ia current probe.

  • Page 93: Voltage & Current Waveforms

    Voltage & Current Waveforms Introduction Waveforms are very different from logs and other graphs. A waveform is the most basic direct measurement. It displays the instantaneous levels of voltage and current as they continually vary, as you see on an oscilloscope. All other measurements are derived from them.

  • Page 94: Receiving Stored Consumption Waveforms

    One of the wavesets, waveset1, is a special waveset. It is automatically captured by PowerSight when you initiate monitoring. The benefit of doing this is you can always retrieve a look at what the waveforms were like when monitoring began. To use PSM to capture a waveform set and have it stored in the connected...

  • Page 95: Viewing Waveforms

    Make sure that there is a check in the box before the line “Consumption Data” in the Data Types to Receive section. Then look for the “Waveset” Data Type lines. These files are the stored waveform sets stored in the PowerSight.
  • Page 96 directory, use the standard Windows methods for changing the directory that is shown. Next, select a specific waveset by double clicking on it. When you select a waveset to view, the “Select Signals to View” window pops open. You make a primary choice of voltage, current, or voltage and current and...
  • Page 97 analysis features. You can easily transform any waveform into either a graph of harmonic data or a view the raw data for each harmonic and K factor. To convert a waveform (“time domain” representation) into a harmonic graph (“frequency domain” representation), click on the Harmonic Graph icon or click on “View”...
  • Page 98 measurement properties into one object. In this case, the properties are magnitude and phase lag. Normally, phase A voltage is considered to be the phase reference signal, so its angle is 0 degrees. If the phase A current lags it, it will be slightly above it. In a three phase circuit, normally the other two phases will be 120 degrees before and after the A phase and the phase lag of each current relative to its associated voltage will be similar.

  • Page 100: Monitoring Power Consumption

    Monitoring Power Consumption Introduction When PowerSight is first turned on, it operates like a reporter, describing what it sees. New measurements are generated each second that replace old measurements. Old measurements are discarded. These are the “present” values that are displayed as you press various keys.

  • Page 101: Basic Consumption Data Logging

    various sections on measurement types. The maximums, minimums, and averages of each logging period are “logged”. This is the act of recording summarizing information once every logging period. With PowerSight, the logging period is set by the user, whereas the measurement updating period is always once per second.
  • Page 102 that you can measure and record just about anything you need to. To simplify things, we provide a default data logging setup and have that installed when you receive your unit, so you are ready to begin logging under general circumstances. The default data logging setup is: Logging period = “3”...
  • Page 103 voltage from B phase to C phase (phase-phase mode) voltage from C phase to A phase (phase-phase mode) current in A phase current in B phase current in C phase current in neutral true power in A phase true power in B phase true power in C phase VA power in A phase VA power in B phase...

  • Page 104: Receiving Data Log From Powersight

    Receiving Data Log from PowerSight To receive a consumption data log from PowerSight, the PowerSight unit must be connected to a computer running PSM. At the main menu of PSM, the green “Unit Connected” Status box must be displayed. At the Main Menu, you can either click on the “Receive Data”...

  • Page 105: Viewing Consumption Logs

    Viewing Consumption Logs To select a consumption log to view, at the main menu, click on “View Consumption Data”, or click on “View” and then “View Consumption Data”, or click on “File” and then “View Consumption Data”. Any of these approaches will result in the View Consumption Data screen being shown.
  • Page 106 will be graphed. If you chose one phase to view, the maximum, minimum, and average of the phase measurement will be graphed. To learn ways to manipulate, interpret, and present the data for better data analysis or improved presentation, refer to the chapter on Working with Graphs and Wavefoms.

  • Page 107: Custom Consumption Data Logging

    The collection of choices that are made on how to operate is called a “setup” file. You can use the “default” setup file, supplied by Summit Technology or you can create, store, and retrieve your own. Starting Data Logging There are several methods to initiate data logging.

  • Page 108: Stopping Data Logging

    box. First, there is the choice of “Start now”. If this is selected, when the custom setup is sent to the attached PowerSight, it will immediately start logging. If you click on “Start at time”, a box will open in which you can set the time and date at which to start logging.

  • Page 109: Setting The Consumption Logging Period

    Setting the Consumption Logging Period One of the most important settings is the choice of logging period. This is the length of time between the creation of data records. This has no effect on the measurement rate or the sampling rate. Unlike inexpensive data loggers that only take measurements when a record is created, PowerSight measures all its variables every second, regardless of the recording rate.

  • Page 110: Setting Measurement Types

    Setting Measurement Types In addition to the measurement types listed in the default data log, the following measurement types can be included in each record of a custom data log: average true power of all phases combined maximum true power of all phases combined minimum true power of all phases combined average apparent power of all phases combined maximum apparent power of all phases combined...

  • Page 111: Setting Measurement Modes

    As measurement types are added or removed, the capacity of the log is affected. If fewer variables are saved, then each log record is smaller and thus more records can be stored in the log, which means that it will take that much longer to fill the log. In the example shown, there is a capacity of 14,833 records in the log, which combined with the logging period of 3 minutes, will take 30.9 days to fill up.

  • Page 112: Saving And Retrieving Data Setups To File Or Powersight

    Saving and Retrieving Data Setups to File or PowerSight When you create a customized data setup, it is usually a good idea to save the setup to a file. To do this, click on “Save to File” and give it a filename. A good practice is to give the setup a name that will be displayed.

  • Page 113: Disturbance Monitoring

    Disturbance Monitoring Introduction Your PS3000 can monitor for high-speed transients (“spikes”) on any one of its input signals. When in this mode of operation, it devotes all of its resources to detecting transients. This means that you cannot monitor consumption while you are monitoring for disturbances.

  • Page 114: Monitoring Disturbances

    Monitoring Disturbances To begin monitoring disturbances, press the [Monitoring On/Off] key and follow the directions that are displayed. For instance, to start monitoring transients on Van, first press [Monitoring On/Off] and it asks if you wish to begin monitoring of consumption. Press [No/Reject] and it asks if you wish to begin monitoring of disturbances.
  • Page 115 more time displays the time of day that the transient occurred. The date that it occurred flashes on the screen every few seconds. When you wish to resume monitoring, press [Monitoring On/Off]. PowerSight will ask if you wish to resume monitoring. Press [Yes/Accept] and the disturbance summary is displayed and the exclamation marks resume flashing.

  • Page 116: Report Generator Software

    Report Generator Software Introduction PSM comes with a Report Generator Software program. The Report Generator software provides concise reports to summarize and document findings. Comparison reports are excellent for presenting before/after comparisons of power usage and projected cost. Separate logs can be compared or sections of the same log can be compared for this analysis.
  • Page 117 data from one log to the data of another log. Or it compares one section of data of a log to another section of data in the same log. This type of report is great for preparing “before” and “after” reports to verify energy savings or to prepare longitudinal reports, documenting how performance or load has...

  • Page 118: Viewing A Report

    The Log Details screen also has a checkbox to direct graphs to be included in the report. If this box is checked, each variable will have a graph only included. The data of the graph will only be during the time period specified in the Datalog Information screen. A word of caution here: if your computer is under-powered or has limited extended memory and you select all of the variable types and checkmark either of the graphics boxes, the report program...
  • Page 119 associated with the “before” and “After” columns. For instance, the “Units” for voltage measurement types is “volts”. The next column is the “Change” in the value of the “After” column from the data in the “Before” column. The values of this column use the same units as the “Before”...

  • Page 120: Other Functions Of Powersight

    Other Functions of PowerSight Calibrating PowerSight PowerSight is calibrated at the factory and automatically adjusts itself every second during normal use. However, in order to ensure that the meter continues to meet its specifications, provision has been made for you to quickly recalibrate it yourself. In order to calibrate the meter, you need access to highly accurate 120.0V, 200A, and a highly accurate HA1000 current probe.

  • Page 121: Administrative Functions

    To review the log interval of the PS3000, press [Setup] two times. The present setting will be displayed. To change this setting, press [No/Reject] and then follow the instructions to enter the new log interval. When the new interval is entered correctly, press [Yes/Accept].
  • Page 122 Technology to extend the warranty prior to that date since re-instating the warranty after that date will cost extra. The next number is for the use of Summit Technology personnel. The final number is the highest level of PowerSight Manager software that the unit is presently eligible to work with.

  • Page 123: Automated Data Reporting Mode

    Changing the initial display, or "greeting", is accomplished by using [<-] or [->] and [Incre] and [Decre] to modify individual characters. This approach, although tedious, is effective in customizing the instrument for your use. If the PC Control/Analysis Option is available, the greeting may be quickly typed directly into the PC and then sent to...
  • Page 124 either PowerSight is turned off or a command to exit the mode is received. This allows PowerSight to serve as a power data collection/monitoring system. The summary data is provided in a rigidly-defined binary floating point format. It is provided without being prompted, once per second.

  • Page 125: Other Functions Within Psm

    Other Functions within PSM Introduction In addition to the many power analysis functions of PSM that have been presented in previous chapters, there are several other functions available. These are functions of convenience, functions for setting up attached PowerSight meters, and functions for setting up the PSM program.

  • Page 126: Setting Up Administrative Features Of Powersight Via Psm

    typing in the character that is underlined in the image (for instance, type in “P” to activate the “Power” key. Setting up Administrative Features of PowerSight via As a convenience, several of the administrative settings of PowerSight can be set within PSM. At the main menu, with a PowerSight meter connected, click on “Setup Unit”...
  • Page 127 by clicking on the Speed box. As an assistance, if you have the wrong speed set for the attached PowerSight, PSM will automatically adjust the speed in order to make a successful connection. However, since this process can take awhile, it is always best to have the speed set correctly in the first place.

  • Page 128: Putting It All Together (Monitoring For The First Time)

    Putting it all Together (Monitoring for the First Time) This section is intended to insure that you will be successful in your first (and later) monitoring attempts. There are several ways to start monitoring. If you wish to use the default values, simply turn the unit on, press [Monitoring On/Off], then [Yes/Accept] (to indicate that you wish to start monitoring), [No/Reject] (to indicate you do not want to combine the new log with the existing log...
  • Page 129 3. Click on “Data Setup” and review the setup that is in PowerSight. Review the chapter on Custom Consumption Data Logging and make any changes that are needed in the data setup and store it to PowerSight and perhaps save it to a file. For instance, check to see how many records can be recorded, given the choice of variables, and check the length of time that logging can proceed before the log will fill up.
  • Page 130 the waveforms and look at them for errors, if you have a computer handy, as described in the Checking out Connections using PSM section. 5. If you intend to have PowerSight start monitoring by direct command via the keypad or via PSM, this is the time to do it. Otherwise, it will start when the programmed start time occurs.

  • Page 131: Working With Graphs And Waveforms

    Working with Graphs and Waveforms General It is important to us to allow you to work with and manipulate the various graphs and waveform presentations in PSM. We try to make the features that accomplish this look and feel the same throughout the program so you can handle all waveforms and graphs in the same way as much as possible.
  • Page 132 brought out in a presentation by adding labels to the chart. The label consists of some text and an arrow. To create labels or titles, click on View and then Labels or click on the Modify or Add Label icon. Normally, the scale of a display is set automatically by PSM to give the best size...

  • Page 133: Reading Graphs And Waveforms

    visible, clicking on it give you fresh data to look at. If you are viewing the waveforms of the attached signals and you click on this, another set of waveforms will immediately be captured, assigned a new file name, and displayed. Similarly, if you have the high frequency spectrum analyzer option (FAO) and you click on the icon, a new spectrum analysis will be conducted and displayed.

  • Page 134: Zooming And Panning

    All graphs and waveforms have a time and date stamp. In the case of consumption logs, the left-most timestamp is when the displayed data began. All graphs and waveforms have data that is displayed. The heading tells which signal or measurement is associated with which data.
  • Page 135 There are multiple ways to zoom in on an area of interest. The easiest is to position your cursor at the upper left corner of the area you wish to expand and then left-click-and-hold-down and “drag” the cursor to the lower right. As you drag the cursor, a box will appear on the screen and it will grow as you move the curson down and to the right.
  • Page 136 the average of all the average C phase power points that are displayed is 3511.6 watts. The example on the right above showing the zoomed-in portion of the sample log has the cursor positioned above a special point of interest, a point where one of the peaks in the power occurs. Looking at the circled information, you can quickly identify that the data at that point is contained in record 90, which started at 18:24:00 on 9/23/04, and the value of the average C Phase power...

  • Page 137: Determining Log Capacity

    Determining Log Capacity There is no simple formula for estimating the capacity of a data log, but there is a simple way of determining the capacity by entering their PowerSight Manager (PSM) software and clicking on the Data Setup button on the main menu.
  • Page 138 Power Factor, C phase average Power Factor, Total average. The results of these tables are not intended for use with other custom log setups. Log Interval Default Setup CustomSample Time Capacity Setup Time Capacity 1 second 75.7 minutes 4.3 hours 5 seconds 6.3 hours 21.3 hours...

  • Page 139: Troubleshooting & Frequently Asked Questions (Faq)

    2. How do I connect to my laptop if it does not have an RS232 serial port? You can use buy a USB-to-Serial communications adapter or a 10/100BaseT Ethernet-to-Serial device server from Summit Technology. Your installation CD contains some recommended models of USB-to-Serial adapters that you can buy.
  • Page 140 6. How long will the battery last? A fully charged PS3000 will run 8-10 hours. The PS3000 is fully charged in about 12 hours (8 hours is adequate). The battery should not need replacement for at least 2 years. Only authorized service personnel can open the meter or replace the battery.
  • Page 141 12. Can I use other manufacturers’ current probes with PowerSight? Unfortunately, no. Only current probes made by Summit Technology can be used with the PowerSight Products. This is because all of our probes are "self-identifying". This means the user does not have to use an input ratio to use the probes.

  • Page 142: Overview Of The Keypad Functions

    Overview of the Keypad Functions One of the best features of PowerSight is its user interface. A surprising amount of capability is quickly available through the touch of a button. We have attempted to make the interface intuitive and flexible. Many functions can be accomplished in several ways.
  • Page 143 Power Factor – true power factor and displacement power factor (combine it with the More button for more information) Demand – amount of demand and time of peak demand period (combine it with the More button for more information) Time – present time, elapsed time, time capacity of log (combine it with the More button for more information) Yes/Accept –...

  • Page 144: Compatibility Guide

    The PS3000 must be used with PSM software of at least the 2.1 series. Compatibility of the PS3000 with Summit Technology accessories is as follows: Accessories PS3000...
  • Page 145 Accessories (cont’d) PS3000 HA-GFD LDC (discontinued) LDC2 not compatible LDC3 LDC4 not compatible SafeConnect Yes, with modification SCAS2 (soft operating case) SCAS3 (soft accessory case) SCAS4 (soft all-in-one)

  • Page 146: Specifications

    Specifications* Size × × 3.97” (10.1cm) Wide 7.75” (19.6cm) Long 1.77” (4.5cm) Deep Weight 1 pound (0.5 kg) Environmental Protection IP40 (IP44 with CAS-W option) per IEC 529 Operating Range 0 - 50 degrees C (32 - 122 degrees F) Relative humidity to 80% (non-condensing) Power Requirement 12 VDC @ 50 ma, wall mount power supply included...
  • Page 147 attached. With HA1000: no de-rating of accuracy for harmonics through 1500 Hz) Frequency Range: DC, 45 - 66 Hz, 360 – 440 Hz fundamental frequency DC and 45 - 1650 Hz included in RMS 45 - 3300 Hz for harmonic measurements Accuracy: 0.5% Power, Energy, Cost, Power Factor...

Table of Contents