energy efficiency and reliability schaffner – energy efficiency and reliability emc basic...
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energy efficiency and reliability
Schaffner – energy efficiency and reliability
EMC Basic Information and Filter Application
電磁相容基本介紹及濾波器應用
Mike Su Sales Manager Taiwan
energy efficiency and reliability
EMC Basic Information and Filter Application
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Agenda
EMC Basic Introduction 電磁相容基本介紹 Filter Selection and Application
濾波器選擇及應用
energy efficiency and reliability
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EMC Basic Introduction
energy efficiency and reliability
EMC Basic Information and Filter Application
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Electronic Environment ( 電子環境 )
Interaction of Equipment
Emission
Immunity
energy efficiency and reliability
EMC Basic Information and Filter Application
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EMC ( Electromagnetic Compatibility )
EMI
( Electromagnetic Interference )
EMS
( Electromagnetic Susceptibility )
energy efficiency and reliability
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EMC ( Electromagnetic Compatibility )
EMI ( Electromagnetic Interference )
CISPR, FCC, IEC, EN, GB
EMS ( Electromagnetic Susceptibility )
IEC 61000, EN, GB
Conducted Disturbance
Disturbance Voltage
Discontinuous → Click
Continuous
Radiated Disturbance
Disturbance Power
Disturbance Filed Strength ( RFI )
Harmonic IEC 61000-3-2
Voltage Fluctuations and Flicker IEC 61000-3-3
Electrostatic Discharge ( ESD ) -4-2
Radiated EM Field Immunity -4-3
Electrical Fast Transient/Burst Immunity
( EFT ) -4-4
Surge -4-5
Conducted Disturbance Immunity -4-6
Power Frequency Immunity -4-8
Voltage Dips, Short Interruptions and Variations Immunity -4-11
energy efficiency and reliability
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What is EMI?
EMI: Electromagnetic Interference ( 電磁干擾 )
Scope of EMI
-Malfunction of Control System ( 系統誤動作 )
-Immunity of Data and program processing ( 錯誤的資料或製程 )
-Motor Control
• Motor rolling without command ( 馬達在無命令下旋轉 )• Poor repeatability and Accuracy ( 較差的重現性及準確度 )• Command distortion ( 命令失真 )
energy efficiency and reliability
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Basic Elements of EMI Problems
Path (Coupling) Signal Receptor
Signal Source
EMI Source
• Encoder• Amplifiers• Computer• Radio Receivers• CCD Camera
• Motion Command• Measurement signal• Protocol• Voice• Image
• Motors• Switches• Arc Welding• Engine Ignition• Lightning
耦合路徑
干擾源
信號源 接收端
energy efficiency and reliability
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Coupling (耦合 )
直流耦合
電容耦合
電感耦合
energy efficiency and reliability
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Coupling Path
Radiated ( 輻射性 )
-Antenna to Antenna ( 天線 )
-Case Radiation ( 外殼 )
-Case Penetration ( 穿透 )
-Field to Wire ( 場對線 )
-Wire to Wire ( 線對線 )
-Field to Field ( 場對場 )
Conducted ( 傳導性 )
-Command Ground Impendence
( 共地阻抗 )
-Power Line ( 電源線 )
-Interconnecting Cable ( 連接電纜 )
energy efficiency and reliability
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Types of interference
CM :noises between line and earth ( 共模干擾 )
DM :noises between lines ( 差模干擾 )
energy efficiency and reliability
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Differential mode noise
RL
L
N
PE
Common mode noise
RL
L
N
PE
energy efficiency and reliability
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Power quality – Efficiency for electric and electronic systems
PQ technology assures smooth sine waves for voltage and power, increasing efficiency and reliability of electric power systems and electricity grids.
Power sine curve
Elimination of reactive power with power quality products
Improving sine wave curve with sine wave filters
利用電力品質產品消除突波突降
採用正弦濾波器改善正弦曲線
energy efficiency and reliability
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EMC & Power quality supports efficiency and reliabilityfor electric and electronic systems
EMC and PQ technologies eliminate electromagnetic disturbances: Assure smooth sine curves for voltage and power.
Voltage sine curve
Power sine curve
Improving sine wave curve with sine wave filters
Elimination of reactive powerwith power quality products
Reduction of electromagnetic noise with Schaffner filters
energy efficiency and reliability
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Electronics is susceptible to interferences from the power grid( 電子元件是容易受到來自電力系統中的干擾所影響 )
Risk of equipment malfunction or break-down Schaffner components make electronics reliable
Power line interference
Power grid
energy efficiency and reliability
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Electronics creates interferences harmful to other devices( 電子元件製造出的干擾影響其他的設備 )
Regulations and standards mandate use of EMC filters Schaffner components assure compliance with all relevant
regulations
Deviceinterference
Power grid
energy efficiency and reliability
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Filter Selection and Application
energy efficiency and reliability
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Power line filter class
Filtering from LF up to the GHz range
Harmonics
50/60 Hz to 2.5 kHz
Line reactors
Non-regulated LF-range
2.5 to 150 kHz
Reactors & EMI filters
Regulated RF-range
(9kHz)150 kHz to 30MHz
EMI Filters EMI
HF-range
above30MHzAbove 1 GHz
Feed throughs
energy efficiency and reliability
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energy efficiency and reliability
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Rating currents
Current ratings of EMI filter are determined by individual filter components. Since current flow leads to a temperature rise in passive components, the ambient temperature of the environment where the filter is to be used has a direct impact on the rated current.
Rated current @ ? °C 16A@40 °C
energy efficiency and reliability
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Driver rating
The following table shows motor ratings up to 55kw with associated suggested filter rating
energy efficiency and reliability
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Inside of equipment
Filter Position in Standard Equipment
For AC Mains Filter:
As close as possible to AC connection
Wrong Installation!
( 電路板與線路干擾 )
energy efficiency and reliability
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Inside of equipment
Filter Position in Standard Equipment
For AC Mains Filter:
As close as possible to AC connection
Correct Installation!
energy efficiency and reliability
EMC Basic Information and Filter Application
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ControlPanel
Filter Position in Control Panels
For AC Mains Filter:
As close as possible to AC connection
Wrong Installation!
( 線路與線路間輻射傳導 )
MMAC Mains
Mains switch
energy efficiency and reliability
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ControlPanel
Filter Position in Control Panels
M
AC MainsFor AC Mains Filter:
As close as possible to AC connection
Correct Installation!
Mains switch
energy efficiency and reliability
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ControlPanel
Filter Position in Control Panels
Additional safety requirements! M
AC Mains
For AC Mains Filter:
As close as possible to AC connection
Case by Case….
Mains switch
energy efficiency and reliability
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Example: cable coupling ( 線路耦合 )
energy efficiency and reliability
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Example: cable coupling
Mass cable and no filter
energy efficiency and reliability
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Example: cable coupling
Mass cable and with filter
energy efficiency and reliability
EMC Basic Information and Filter Application
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Example: cable coupling
Cable clear up with filter ( 線路整理 )
energy efficiency and reliability
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Filter Grounding
Filter
Painted Enclosure
Remove paint將漆面移除
Filter
energy efficiency and reliability
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Filter Grounding
Filte
r
Filter
Filter
Braided cable較粗較短地線
energy efficiency and reliability
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Example: filter grounding
energy efficiency and reliability
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Example: filter grounding
Pig tail grounding- cable 30cm
energy efficiency and reliability
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Example: filter grounding
Short cable-5cm
energy efficiency and reliability
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Example: filter grounding
Correct method
energy efficiency and reliability
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Schaffner counts most of the large manufacturersof power electronic devices as customers for EMC filters ...
Motordrive Motor
EMC filter
Electroniccontrol
EMC filter
Line Load
energy efficiency and reliability
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... together with complementary power quality products Schaffner is creating the strongest total solution
Motordrive Motor
EMC filter
Electroniccontrol
EMC filterTransformerHarmonics
filter
Line
Output filter
Load
energy efficiency and reliability
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Schaffner – your EMC & PQ solution provider
Problem analysis1
Engineering
2
Worldwide support4
Innovative products
3
YourEMI & PQProblems