Electricity Quantity

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ElectricityQuantity Quality
Hervé Mougeot
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Market Overview
Quantity Quality Safety

• Quantity Allocate energy usage, detailed cost
  analysis, cut energy costs, negotiate better
  energy contracts, demand control and peak saving,
  information for improving infrastructure, load
  curtailment and price response, power factor
  correction.
• Quality Availability, troubleshooting,
  productivity, preventive maintenance, quality
  statistics, information for improving
  infrastructure
• Safety protect people and property

Quality
UZ I
Quantity
Safety
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Electrical Network
Production Transmission Distribution Users
LV
HV
MV
Network Share of the electricity ... and the
pollution. Example The pollution generated
from a disturbing load will be distributed to the
neighbors more or less attenuated depending on
the network impedance.
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ElectroMagnetic Compatibility
Immunity secured load
Immunity standard load
Disturbance level
EN50160
Compatibility
Emission on the network
Emission from single load
IEC1000-3-x
t
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ElectroMagnetic Compatibility
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Compatibility
Transient
Swell
Dip
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3 Phases System

U31

V3

U23

V1

V2

U12


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Electrical Disturbances
low frequency, conducted

• Voltage variations
• Voltage Dips
• Interruptions
• Voltage Swells
• Flicker
• Harmonics
• Inter harmonics
• Transients
• Frequency
• Unbalance

• Amplitude
• Wave Shape
• Frequency
• Symmetry

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Voltage Variations
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Voltage Dips
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Interruptions
100
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Dips, Swells and Interruptions
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Flicker
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Flicker
Pst 1 , cas des variations rectangulaires
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Harmonics
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Harmonics
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Transients
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Unbalance
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Frequency Variation
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Disturbances
Dips, Swell, Interruptions
Flicker
Harmonics
Transients
Frequency Variation
Unbalance
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Parameters
Parameters Value Limits
Urms LV 230V / 400V 10 / -10
Urms MV 20kV 7 / -7
Frequency 50 Hz 2 / -2
Wave shape Sinusoidal THD lt 8 en BTA
Symmetry U U1U2U3 2
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What to measureEN 50160Voltage characteristics
in public distribution systems
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EN 50160 Parameters

• Voltage Variations
• Flicker Pst/Plt
• Harmonics order 2 to 25, THD (40)
• Signalling (ripple control) voltages
• Frequency
• Unbalance
• Voltage dips and swells
• Interruptions

Measurement over 1 week
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EN 50 160 - Limits
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EN 50 160 - Data
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To measure according EN 50 160 150.000 data
to analyze

• for 1 week, for 1 point !

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To analyze according EN 50 160 1 second with
DRANETZ BMI
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90 curves to analyze
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Compression of the information
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Amplitude
standard
95
100
number of measuring values
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Amplitude
standard
95
100
number of measuring values
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Amplitude
standard
95
100
number of measuring values
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Amplitude
standard
95
100
number of measuring values
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Overview about the Power Quality
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How to measureIEC 61000-4-30 Testing and
measurement techniques Power Quality
measurement methods
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Measurement techniques
Continuity / Change
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Permanent / Trigger
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Events / Trend
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256 s/c 16-Bit
T
A/D
FIFO
(4)
T
Transient
1 MHz 12-Bit
X
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Measurement methods
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Event recording
Acquisition Treatment Characterization
Detection Evaluation Classification
Measure Analyze Archive
Recording
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Long term recording
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Zero Crossing of Fundamental (filtered)
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150
Synchronised Clock 20msec
10min
2h
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YES ?
NO ?
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Where to measure Compliance / Trouble shouting
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Amplitude
Transient
User
Network
Swells
Flicker
Dips
Momentary Temporary Long Duration
Instantaneous
Interruptions
Duration
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Measuring point
Statistics / Diagnostic
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Multi-sites monitoring
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Multi-sites monitoring

• A lot of data
• To transmit
• To analyze

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Analysis
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Embedded analysis
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How to analyze Overview / Details
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Overview
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Overview
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Trends
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Trends
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Overview
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Events
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Classification
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Details
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Key points

• To measure ALL the parameters at the same time
  through differential inputs
• To measure according IEC 61000-4-30 class A
• Adapted trigger mode
• Easy to configure
• Automatic overview

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Complete solution
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Solution DRANETZ BMI
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Selection
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Questions?Electricity - Quantity Quality