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Power Quality Applications

for Energy Suppliers

SYSTEM FOR REMOTE LOAD READING AND POWER QUALITY CONTROL

CLASS A, DURING RECEPTION AND DOWNLOAD FOR MV AND HV

BUYERS


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Content:

Power Quality Introduction

IEC 61000-4-30 ed.2.0 (2008-10) - What is it?

Key differentiating concepts in IEC 61000-4-30 ed.2.0 (2008-10)

Class A performance Verification

Meet the PowerLogic PQ meters and software

Conclusion

Schneider Electric 2Power quality analysis for utilities September 2013


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Ministr of Ener new le islation

Re ardin market liberalisation that is oin to start from Januar 1st

2014, we will have more customers on electricity market, that would

have opportunity to choose from various electricity suppliers., ,

obligation of Electrical Utility will be to perform the quality control.

In points where electricity is taken or delivered to the grid, there will be

incorporated control, both in terms of quantity and peak power at tariffrates and in terms of quality control.

,

electricity is delivered to end users.

This will be especially important for those customers who will havesome parame ers re a e o e qua y o e e vere energy

contained in the contract between end user and Utility company as

supplier.



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Power Quality: why?

Energy suppliers need cost-effective, real-time power quality

monitoring and analysis to increase reliability and meet customer

eman s.

Open protocols

Advanced communication options

Gateways Customized solutions

n egra on n o ex s ng n ras ruc ure

Accommodation of third-party equipment

Power Quality (PQ) systems help Energy Suppliers across the globe:

Meet power quality compliance standards



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IEC 61000-4-30 ed.2.0 (2008-10): What

- -

defines the methods for measurement and interpretation

of results for power quality parameters in 50 Hz and 60

IEC 61000-4-30 ed.2.0 (2008-10)All PQ Parameters

Similar to IEEE 1159-1995

IEC 61000-4-15 (2003)

Flicker

IEC 61000-4-7 (2002)

Harmonic & Interharmonics

All or a subset of the phenomena on this list may be

measured


IEC61000-4-30 classifies into two different class power

quality parameters: A and B


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Parameters Classification

Class A performance

This class of performance is used where precise measurements are necessary, for example, for

contractual applications, verifying compliance with standards, resolving disputes, etc.

ny measuremen s o a parame er carr e ou w wo eren ns rumen s comp y ng w e

requirements of class A, when measuring the same signals, will produce matching results within

the specified uncertainty.

To ensure that matching results are produced, class A performance instrument requires a bandwidthcharacteristic and a sampling rate sufficient for the specified uncertainty of each parameter

For each Class A parameter 61000-4-30 specifies:

How or when to measure an specific parameter, it states the basic (measurement) unit for

evaluation

Evaluation method

Maximum expected deviation of a measured value from its actual value


- - , - -


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Parameter Classification

For Class B parameter the standard allows the manufacturer to specify its own

Class B performance

This class of performance may be used for statistical surveys, trouble-

,

required.

Using Class B devices measuring the same signals, will produce no-matching

results

Class A and B are equal for Dips/swells and interruptions



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Key differentiating concepts in

- -

1. Data synchronization. ata ggregat on

Based on cycles

Based on time

3. Harmonics and Interharmonics

4. Flicker

5. Flagging

6. Anti-aliasing



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Class A performance Verification

Influence quantities Range of variation Testing state 1 Testing state 2 Testing state 3

Frequency 42,5 Hz 57,5 Hz for 50 Hz

fnom 0,5 Hz fnom 1 Hz 0,5 Hz fnom + 1 Hz 0,5 Hz

Verification. To confirm that a device complies with the standard

,

for 60 Hz systems

Voltage magnitude (steady-

state)

0 % 200 % of Udin Udin 1 % Determined by flicker,unbalance,

harmonics, interharmonics(below)

Determined by flicker,unbalance,

harmonics, interharmonics(below)

Flicker (Pst) 0 20 Pst < 0,1 Pst = 1 0,1 rectangular

modulation at 39 changes per

minute

Pst = 4 0,1 rectangular

modulation at 110 changes per

minute

NOTE This only applies to 10-

min

values. For other values use Pst. ,= 0

to 0,1

Unbalance 0 % 5 % 0 % to 0,5 % of Udin

0,73% 0,5 % of Udin Phase A0,80% 0,5 % of Udin Phase B

0,87% 0,5 % of Udin Phase C

1,52% 0,5 % of Udin Phase A1,40% 0,5 % of Udin Phase B

1,28% 0,5 % of Udin Phase C

a p ase ang es a p ase ang es

Harmonics (THD) Twice the values in IEC

61000-2-4, class 3

0% to 3 % of

Udin

10 % 3 % of Udin 3rd at 0

5 % 3 % of Udin 5th at 0


1 % 0,5 % of Udin at 7,5fnom

10 % 3 % of Udin 7th at 180



Interharmonics (at any

frequency)

Twice the values in IEC

61000-2-4, class 3

0% to 0,5 % of

Udin

1 % 0,5 % of Udin at 3,5 fnom

Mains signalling voltage 0 % 9 % of Udin

Transient voltages - 6 kV peak


according to IEC

61180

Fast transients - 4 kV peak


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Measurement Uncertaint

Measurement Uncertainty

Power Quality Parameter Class A

,

Magnitude of supply voltage 0,01% Udin

Residual and Swell voltage 1,0% Udin

Mains signaling voltage 7% of reading



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Meet the PowerLogic PQ meters,

w , yRecommended products

Software:

Our systems support:

PowerLogic Power Monitoring Expert

Software (PME)

PowerLo ic Scada Ex ert PSE

Power quality

Power and energy meters:

Billing

Distributed generation

ower og c

PowerLogic ION8650

PowerLogic ION7650

Value-added services

Load curtailment

and more...Other PowerLogic Meters a

complete range (iEM3000,

PM3200, PM5000, PM700, PM800,


ION73X0)


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ION7650 Class A meter as a Flexible Solution

Class 0,2S Revenue Metering

Energy pulse out and

aggregation

nayss

IEC 61000-4-30 Class A

20 us Transient with

phasorsg a au ecor ng

Monitoring

Transducer(Temperature,

Breaker Status)

RTU

PLC

Gateway (Modem,

Ethernet) including

IEC61850



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Power Qualit - Stren ths

PQ Standards Compliance:

, - - ,

Power frequency Supply voltage magnitude

Flicker Supply voltage dips/swells o age n errup ons rans en vo ages

Supply voltage unbalance Voltage harmonics

Voltage interharmonics Mains signalling

Voltage and Current harmonics to the 63rd (individual, even, odd, total)THD and TDD

More PQ arameters :

Symmetrical Components, Mains Signalling, Interharmonics

Current measurements as well as voltage measurements

20 s transient detection



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Power Monitorin Ex ert Software

For utilities, Power Monitoring Expert serves the

following needs:

Data Collection

-

Power quality analysis

Using powerful waveform analysis tools

Power quality reporting

Using default report templates such as

EN50160



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PowerLo ic Scada Ex ert



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PowerLo ic S stem: Power Qualit

PowerLogic systems:

Prevent downtime

Help benchmark power quality

Provide automated power quality reports

Verify performance contracts

Monitor to industry standards, like EN50160

Meet highest standard for PQ measurement

IEC 61000-4-30 Class A

secure information access via:

Web/email/wireless networks



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Software architecture

Data presentation

Data access through local server, web browser, or

terminal services

Security

Information and alerts via mobile phone and other

devices.

Functional components

Network configuration

Device programming

Real-time data monitoring, analysis, control

Re orter redefined or custom re orts

Data acquis ition/management

Virtual Processor - aggregation, complex

ca cu a ons an con ro

Site Server data acquisition (Internet, Ethernet,

telephone, serial, wireless, satellite)

SQL ODBC databases device and system data,

accurate timestamps,en an erver



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Conclusions

- - s a very compre ens ve s an ar

Very challenging to implement (class A)Technically

Commercially - requires customer training to understand

Lets try to implement this localy and become


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