“The mighty hand-held power meter.”

Presenting the PowerSight family of power analyzers.

Michael DaishVice President Sales

Summit Technology Inc.

Monitoring, Past, Present, Future.

• Introduction• Describe problem & define objectives• Choosing instrumentation, past & present• Summit’s range of hand-held analyzers• Data retrieval & analysis• Documentation & reports• Conclusions

“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trips.”“I’m commissioning a UPS and need to verify it’s performance.”“My one-line diagram is out of date or missing, I need to recreate it.”“I need to measure system impedances for an Arc Flash study.”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

Power Study Objectives

• Log V & I

• Power & Energy

• Power Quality – sags/swells

• Power Quality – high-speed transients

• Harmonics

• Frequency

• Flicker

Power & Energy25%

Sag/swellevents 19%

Harmonics 10%

High-speed transients

8%Log V&I

34%

Frequency 5%

Flicker 0.2%

Choosing Right Instrument

Power & Energy25%

Sag/swellevents 19%

Harmonics 10%

High-speed transients

8%Log V&I

34%

Frequency 5%

Flicker 0.2%

Instrument Types – Past

• History - 70’s• Voltage domain• Text output• Awareness of PQ (mainframe to mini)

Instrument Types - Past

• 80’s

• Voltage and current domains

• Graphics output

• Field service

• Awareness of harmonics

• Utility awareness

• 90’s, black-box• Multi-functioning• Full-Disclosure• Disk storage• Ethernet• PC Analysis software• Report Writer

Instrument Types - Past

Instrument Types – Present

• 21st 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

Instrument Types

Black-Box

Feature +/-

Size/weight Medium/high

No display Requires pc

No keyboard No tampering

Security High - anonymous

Tablet

Feature +/-

Size/weight Medium/Medium

Display Does not require pc for set up

Keyboard Good for set up but invites tampering

Security Low – looks like a video game

Hand-Held

Feature +/-

Size/weight Small/low

Display Numeric LCD

Graphics screen

Keyboard version Good for set up

Selecting display values

No keyboard version No tampering

Security Medium - High

Instrument Types – Present Hand-Held Tablet Black-Box

Size smallest medium biggest

Weight lowest medium heaviest

Display LCD LCD/Graphics none

Ease of Connection Good Good Good

Ease of set up Easy Less Easy Easiest

Breadth of Measurements Medium - High Medium - High Highest

Software Good Very Good Very Good

Reports Very Good Very Good Very Good

Cost Lowest$1.5K - $5K

Medium$4.5K - $ 9K

Highest$10K - $15K

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 monitorAnalysis done off line Use PC as display for analysis and reportsGood security – small size, less conspicuous

• Attended short-term monitoring sometimes requires oscilloscope display

Witness conditions as they occurForcing events, changing of waveformsUsually during commissioning and set-up of equipmentPoor security – video game

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• CT’s self-identify

Connection Check List

Types of Errors that may be presentOne, two, or three voltages not connected

One, two, or three currents not connected to sourceOne, two, or three currents not connected to measuring system

Two or three connections to the same voltageTwo or three connections to the same current

Voltages misidentifiedCurrents misidentified

One, two, or three current sensors backwardsTwo voltage connections switched

Two current sensors switchedAll voltages rotated one position left

All voltages rotated one position rightAll currents rotated one position left

All currents rotated one position rightOne phase not presentTwo phases not present

Three phases not presentOne phase offered as two or three phases

One phase shorted to neutral or groundTwo phases shorted to neutral or ground

Neutral not connected to groundNon-standard voltage due to improper loading

Non-standard voltage due to power system problemNon-standard frequency due to power system problem

Non-standard phase shift between phases due to power system problemCombinations of the above listed errors

Foolproof surveys

Algorithms check all voltage and current connectionsAdvises connection errorsChecks trigger levels

SureStart™

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.

“The Mighty Hand-Held”

• Power Logger• Power and Energy Analyzer• Power Quality and Harmonics• Motor Diagnostics

PS250 PS3000 PS4000 PS4500

“The Mighty Hand-Held”

Power & Energy25%

Sag/swellevents 19%

Harmonics 10%

High-speed transients

8%Log V&I

34%

Frequency 5%

• Power Logger

“The Mighty Hand-Held”

• Power Logger

• Power and Energy Analyzer

Sag/swellevents 19%

Harmonics 10%

High-speed transients

8%

Power & Energy25%

Log V&I 34%

Frequency 5%

“The Mighty Hand-Held”

• Power Logger• Power and Energy

Analyzer• Power Quality and

Harmonics

Power & Energy25%

Sag/swellevents 19%

Harmonics 10%

High-speed transients

8%Log V&I

34%

Frequency 5%

Latest Enhancements to PowerSight

• Bluetooth

wireless communication to PC

• Secure Digital Memory Card Slot

removable memory - share data

storage 256KB – 2 GB +

Log V and I

Log Tabular Data – Export to Excel

• * Start Start Van Vbn Vcn Ia Ib Ic WaWb Wc VAa VAb VAc PFa PFb PFcFreq

• * Date Time Avg Avg Avg Avg Avg Avg AvgAvg Avg Avg Avg Avg Avg Avg AvgAvg

• 7/18/2002 11:33:57 270.5 268.2 270.3 23.448 22.664 23.672 28352995 2980 6346.4 6080 6401.6 0.45 0.49 0.4760

• 7/18/2002 11:33:58 270.7 268.2 270.1 24.656 23.128 24.32 34333222 3238 6675.2 6204 6566.4 0.51 0.52 0.4959.9

• 7/18/2002 11:33:59 270.3 268 270.5 24.688 22.904 24.232 34733050 3235 6668.8 6139.2 6553.6 0.52 0.5 0.4960

• 7/18/2002 11:34:00 270.7 268.1 270.7 24.504 23.064 24.032 33393139 3097 6630.4 6184 6505.6 0.5 0.51 0.4860

• 7/18/2002 11:34:01 270.5 268 269.9 24.28 22.96 23.832 32173115 2939 6566.4 6154.4 6433.6 0.49 0.51 0.4660

• 7/18/2002 11:34:02 270.4 268.1 269.9 24.456 23.112 24.024 33463173 3062 6611.2 6197.6 6486.4 0.51 0.51 0.4760

• 7/18/2002 11:34:03 270.8 267.9 270.5 24.544 23.248 24 33653226 3019 6649.6 6230.4 6492 0.51 0.52 0.4759.9

• 7/18/2002 11:34:04 270.4 268.4 270.7 24.776 23.36 24.136 34083178 3033 6700.8 6272 6536 0.51 0.51 0.4660

• 7/18/2002 11:34:05 270.7 268.6 270.8 24.624 23.032 24.2 34032996 3146 6668.8 6187.2 6553.6 0.51 0.48 0.4860

• 7/18/2002 11:34:06 270.4 268.2 269.9 24.56 22.904 24.184 33512987 3156 6643.2 6144 6529.6 0.5 0.49 0.4859.9

• 7/18/2002 11:34:07 269.6 267.5 269.9 24.352 22.856 24.136 32623087 3033 6566.4 6114.4 6514.4 0.5 0.5 0.4760

• 7/18/2002 11:34:08 270.3 267.3 269.9 24.112 22.544 23.656 32123007 2890 6518.4 6028 6385.6 0.49 0.5 0.4560

• 7/18/2002 11:34:09 270.2 268.3 270.7 24.448 23.208 23.816 32773185 2900 6604.8 6228.8 6449.6 0.5 0.51 0.4559.9

• 7/18/2002 11:34:10 271.1 268.5 271 24.416 23.4 23.992 32893256 3013 6617.6 6285.6 6503.2 0.5 0.52 0.4660.1

Power and Energy

KWh

Spot Checks

• LCD Meter display

• Labeled buttons

• Instant readings

Waveform Capture

Harmonics

Harmonics

RMS Events Sags/Swells

Waveform Sags/Swells

RMS Events Current Inrush

High-Speed Transients

Options – High-voltage probes

• High voltage probes for 5KV or 15 KV

Options - High-Frequency Noise

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.

Data Retrieval Methods

• Serial cable RS 232• Ethernet via serial-to-Ethernet converter • USB via serial-to-USB converter• Wireless - Bluetooth• SD Memory card

Reports and Documentation

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