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The mighty hand-held power meter. Presenting the PowerSight family of power analyzers. Michael Daish Vice President Sales Summit Technology Inc.

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Presentation on theme: "The mighty hand-held power meter. Presenting the PowerSight family of power analyzers. Michael Daish Vice President Sales Summit Technology Inc."— Presentation transcript:

1 The mighty hand-held power meter. Presenting the PowerSight family of power analyzers. Michael Daish Vice President Sales Summit Technology Inc.

2 Monitoring, Past, Present, Future. Introduction Describe problem & define objectives Choosing instrumentation, past & present Summits range of hand-held analyzers Data retrieval & analysis Documentation & reports Conclusions

3 I need to add more loads – will my panels and circuits support the new additions? We need to reduce energy consumption – I need to perform an energy audit to evaluate energy savings opportunities. This transformer is very hot – is it overloaded or are high harmonics the cause? My (machine) is operating erratically – is power quality the cause? When the HVAC (or motor or other equipment) turns on the breaker trips. Im commissioning a UPS and need to verify its performance. My one-line diagram is out of date or missing, I need to recreate it. I need to measure system impedances for an Arc Flash study. Define Problem

4 Power Study Objectives Log V & I Power & Energy Power Quality – sags/swells Power Quality – high-speed transients Harmonics Frequency Flicker Power & Energy 25% Sag/swell events 19% Harmonics 10% High-speed transients 8% Log V&I 34% Frequency 5% Flicker 0.2%

5 Choosing Right Instrument Power & Energy 25% Sag/swell events 19% Harmonics 10% High-speed transients 8% Log V&I 34% Frequency 5% Flicker 0.2%

6 Instrument Types – Past History - 70s Voltage domain Text output Awareness of PQ (mainframe to mini)

7 Instrument Types - Past 80s Voltage and current domains Graphics output Field service Awareness of harmonics Utility awareness

8 90s, black-box Multi-functioning Full-Disclosure Disk storage Ethernet PC Analysis software Report Writer Instrument Types - Past

9 Instrument Types – Present 21 st Century = multiple vendors Microelectronics progress = lower cost More processing power Lower cost memory = more storage Variety of communications methods Black-box, tablet, hand-held PQ features added to permanently installed meters Standards based or trouble-shooting

10 Instrument Types

11 Black-Box Feature+/- Size/weightMedium/high No displayRequires pc No keyboardNo tampering SecurityHigh - anonymous

12 Tablet Feature+/- Size/weightMedium/Medium DisplayDoes not require pc for set up KeyboardGood for set up but invites tampering SecurityLow – looks like a video game

13 Hand-Held Feature+/- Size/weightSmall/low DisplayNumeric LCD Graphics screen Keyboard versionGood for set up Selecting display values No keyboard versionNo tampering SecurityMedium - High

14 Instrument Types – Present Hand-HeldTabletBlack-Box Sizesmallestmediumbiggest Weightlowestmediumheaviest DisplayLCDLCD/Graphicsnone Ease of ConnectionGood Ease of set upEasyLess EasyEasiest Breadth of MeasurementsMedium - High Highest SoftwareGoodVery Good ReportsVery Good CostLowest $1.5K - $5K Medium $4.5K - $ 9K Highest $10K - $15K

15 To Display or Not Display Unattended long-term monitoring and logging does not require a display For long monitoring periods no one is looking at the monitor Analysis done off line Use PC as display for analysis and reports Good security – small size, less conspicuous Attended short-term monitoring sometimes requires oscilloscope display Witness conditions as they occur Forcing events, changing of waveforms Usually during commissioning and set-up of equipment Poor security – video game

16 Connecting Safely Terminal blocks - danger! Banana plugs – stacking is a hazard CAT IV rating - highest level of transient overvoltage Neutral conductor? Verifying connections by experience Indicator lights – go, no go Display – phasors, rotation, polarity Intelligence – checks all conditions CTs self-identify

17 Connection Check List Types of Errors that may be present One, two, or three voltages not connected One, two, or three currents not connected to source One, two, or three currents not connected to measuring system Two or three connections to the same voltage Two or three connections to the same current Voltages misidentified Currents misidentified One, two, or three current sensors backwards Two voltage connections switched Two current sensors switched All voltages rotated one position left All voltages rotated one position right All currents rotated one position left All currents rotated one position right One phase not present Two phases not present Three phases not present One phase offered as two or three phases One phase shorted to neutral or ground Two phases shorted to neutral or ground Neutral not connected to ground Non-standard voltage due to improper loading Non-standard voltage due to power system problem Non-standard frequency due to power system problem Non-standard phase shift between phases due to power system problem Combinations of the above listed errors

18 Foolproof surveys Algorithms check all voltage and current connections Advises connection errors Checks trigger levels SureStart

19 SafeConnect Monitor power without exposure to high voltages No need to wear special gloves, eye- protection, or flame-retardant clothing. No need to power down. No need to put up protective barriers or warnings. Quick setup and teardown of monitoring sessions on live power. No need to remove panels. No need to deal with hooking up current probes in tight or inaccessible spaces. Periodic maintenance measurements. No switched phases, reversed probes, or dead channels. Permanent connections means the data is right when you return 1 month later.

20 The Mighty Hand-Held Power Logger Power and Energy Analyzer Power Quality and Harmonics Motor Diagnostics PS250 PS3000 PS4000 PS4500

21 The Mighty Hand-Held Power & Energy 25% Sag/swell events 19% Harmonics 10% High-speed transients 8% Log V&I 34% Frequency 5% Power Logger

22 The Mighty Hand-Held Power Logger Power and Energy Analyzer Sag/swell events 19% Harmonics 10% High-speed transients 8% Power & Energy 25% Log V&I 34% Frequency 5%

23 The Mighty Hand-Held Power Logger Power and Energy Analyzer Power Quality and Harmonics Power & Energy 25% Sag/swell events 19% Harmonics 10% High-speed transients 8% Log V&I 34% Frequency 5%

24 Latest Enhancements to PowerSight Bluetooth wireless communication to PC Secure Digital Memory Card Slot removable memory - share data storage 256KB – 2 GB +

25 Log V and I

26 Log Tabular Data – Export to Excel * StartStartVanVbnVcnIaIbIcWa WbWcVAaVAbVAcPFaPFbPFc Freq * DateTimeAvgAvgAvgAvgAvgAvgAvg AvgAvgAvgAvgAvgAvgAvgAvg Avg 7/18/200211:33: /18/200211:33: /18/200211:33: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34: /18/200211:34:

27 Power and Energy

28 KWh

29 Spot Checks LCD Meter display Labeled buttons Instant readings

30 Waveform Capture

31 Harmonics

32

33 RMS Events Sags/Swells

34 Waveform Sags/Swells

35 RMS Events Current Inrush

36 High-Speed Transients

37 Options – High-voltage probes High voltage probes for 5KV or 15 KV

38 Options - High-Frequency Noise

39 Options - Motor Current Signature Analysis Evaluate motors while running Rotor/armature health Stator mechanical/electrical health Field coil faults Bearing health Eccentricity Loose connection problems Induction, synchronous, DC, wound rotor and induction with VFD type motors.

40 Data Retrieval Methods Serial cable RS 232 Ethernet via serial-to-Ethernet converter USB via serial-to-USB converter Wireless - Bluetooth SD Memory card

41 Reports and Documentation

42 Conclusion V & I data logging most common study Energy analyzer addresses 60% of studies Sags/swells are most common PQ problem Harmonics and high speed transients less significant Display need depends on attended/unattended operation New breed of hand-held analyzers pack high performance Unique options for high-voltage, noise, motor diagnostics Report writer completes the job


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