Surge Guard Master En
Transcript of Surge Guard Master En
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Elfa
GE Power Controls
Comfort Functions
Surge Protective Devices
ElfaPlusModular Devices
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GE Power Controls
Mo
dularDevices
Comfort Functions
Surge Guard
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GE Power Controls
Function : Protection of installation and all connected
equipment against overvoltage surges Range
* Class 1 and Class 2 devices
* Single-pole and multi-pole devices
* Plug-in and monoblock devices
Surge Protective Devices
Mo
dularDevices
Comfort Functions
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GE Power Controls
Range
Surge Protective Devices
ModularDevices
Comfort Functions
- Class 2 (8/20s) (MOV technology)Network IT or TN-C Single Pole SPD TT or TN-S Multi Pole SPD
Un Imax / Up 2.5kV 1.8kV 1kV 2.5kV 1.8kV 1kV
230V 20kA SG SP 2 20 2 SG SP 2 20 2 SG SP 2 20 2 SG MM 2 20 2 SG MM 2 20 2 SG MM 2 20 2
45kA SG SP 2 45 2 SG SP 2 45 2 SG SP 2 45 2 SG MM 2 45 2 SG MM 2 45 2 SG MM 2 45 2
65kA SG SP 2 65 2 SG SP 2 65 2 (1)
400V 20kA SG SP 2 20 4 SG SP 2 20 4 (1) SG MM 2 20 4 SG MM 2 20 4 SG MM 2 20 4
45kA SG SP 2 45 4 (1) (1) SG MM 2 45 4
SG MM 2 45 4SG MM 2 45 4
65kA SG SP 2 65 4 (1) (1) SG MM 2 80 4 SG MM 2 80 4 (1)
Note 1: If the protection level cannot be reached by using only one SPD, appropriate cascading is necessary. Example: To pro-tect computer equipment in a facility with a high FER and a level 1 FF&V and with an IT or TN-C earthing system, according to table5 a 65kA SPD with a UP=1kV is required but not available. Therefore cascading a SG SP 2 65 2 upfront of a SG SP 2 20 2 down-stream, with a SG COIL xx in between if required would be the best solution.
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GE Power Controls
Range
- Class 1 (10/350s) (Spark-gap technology)1-pole, 35kA
3-pole, 100kA
- Sine-Wave-Tracking module
- Series inductor coils 40 and 63A
Surge Protective Devices
ModularDevices
Comfort Functions
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GE Power Controls
Features
- Terminals aligned with MCB-terminals for easy connection or PIN- or FORK-busbar- Plug-in
- Status indication
- Auxiliary contact
- Clearly marked unlosable Pozidriv terminals with big capacity (6 ... 50mm)- Powerful DIN-rail grip with easy DIN-rail extraction (same as MCB)
Surge Protective Devices
ModularDevices
Comfort Functions
Pad-printed product infoImaxUp at Inom
Operating voltage6-digit ordering codeWiring diagram
Family abbreviation
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Elfa
GE Power Controls
Situating the problem
SPD terminology SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
Surge Protective Devices
ModularDevices
Comfort Functions
SPD technical training
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Elfa
GE Power Controls
Problem - Why SPD protection
All electrical apparatus are developed according to the applicable standards
Operating voltage (within limits)
Isolation voltage Creepage distances
Normal conditions : no problem
Abnormal conditions : certain disturbances can cause electrical breakdown, resulting in
Loss of memory System lock-up UNSCHEDULED DOWNTIME Defective hardware
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
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GE Power Controls
Apparatus breakdown voltage
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
In order to limit the voltage on the supply lines to certain levels,
GEPC SurgeGuard SPDs need to beapplied
Up = 2.5kV
Electrical control devices
(i.e. wiring devices, motors,transformers, ...)
Up = 1.8kV
Appliances (dish-washer,
laundry machine, freezer,refrigerator, hot, ...)
Up = 1kV
PLC's, CNC-controllers,
personal computer,computer network, fax,modem, hi-fi, VCR, TV,alarm system, medicalscanning and monitoringequipment, ...
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GE Power Controls
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Disturbances
- Temporary interruption / long term outage
- Sag / Swell
- Transient
- Noise
- Harmonic distorsion
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GE Power Controls
- Description : a planned or accidental loss ofpower in a localised area ofcommunity
- Duration : temporary : less than 1 minutelong term : more than 1 minute
- Cause : equipment failure, weather, animals, human error (auto accident, ...)
- Effect : systems shut down
- Solutions : temporary * uninterruptable or stand-by power supplyfor outages of about 15 minutes* motor generator set
for outages of very short duration onlylong term * stand-by generator
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Temporary interruption / long term outage
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GE Power Controls
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Sag / Swell
- Description : a decrease (sag) orincrease (swell) in voltage
- Duration : from miliseconds to a few seconds
- Cause : major equipment start-up or shutdown, short-circuits (faults)undersized electrical circuits
- Effect : memory loss, data errors, dim or bright lights, shrinking display screens,equipment shutdown
- Solutions : * computer or equipment relocated to a different electrical circuit* voltage regulator* power line conditioner* uninterruptable power supply* motor generator
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Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Transient
- Description : a sudden change in voltageup to several thousands volts(also called an impulse,spike or surge)
- Duration : microseconds
- Cause : utility switching operations, starting and stopping of heavy equipment oroffice machinery, elevators, welding equipment, stactic dischargeslightning and storms
- Effect : processing errors, data loss, burned circuit boards or other equipment damage
- Solutions : * surge suppressor* power line conditioner* motor generator
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Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Noise
- Description : an unwanted electrical signalof high frquency from otherequipment
- Duration : sporadic- Cause : interference from appliances, microwave and radar transmissions,
radio and TV broadcasts, arc welding, heaters, laser printers,loose wiring and improper grounding
- Effect : noise disturbs sensitive electronic equipment, but is usually not
destructive (can cause processing errors and lata loss)
- Solutions : * isolation transformer* power line conditioner* motor generator
* uninterruptible power supply* loose wiring and grounding corrected
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Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Harmonic distortion
- Description : a distortion in the voltagedue to the power supplyin some equipment
- Duration : sporadic- Cause : power supplies in computers, adjustable speed drives and fluorecent lighting
- Effect : overheating of motors, transformers and wiring
- Solutions : * electrically separate loads that cause harmonic distortion
* power line conditioner* motor generator* uninterruptible power supply* oversize electrical equipment so it does not overheat
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GE Power Controls
Characteristics of noise
Small magnitude, superimposed on carrier
Continuously present
High frequency
Low energetic content Irritating
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SPD technical training
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GE Power Controls
Surge Protective Devices
ModularDevice
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Comfort Functions
SPD technical training
Characteristics of surges
High magnitude (1000 s of Volts or Amps)
Sporadic
Short duration (-seconds)
High frequency High energetic content
Destructive
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GE Power Controls
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Origin of Surges
Electronic dimmers
AC-motors and transformers
Welding machines
Lightning strikes* Direct coupled
* Indirect (inductively) coupled
Power grid switching
ALL SURGE ORIGINATORS ARE CURRENTS
70% of the surges polluting your facility originates insideyour facility while only 30% originates outside
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GE Power Controls
Voltage generation mechanism
UR= i x R
* R = l / (r)
UL= - L di / dt* L =
r
ol / ( |||||ln(d / r) ||||| + )
UC= 1/ C i dt
* C = (rol) / ln (d/ r)
Surge Protective Devices
ModularDevice
s
Comfort Functions
SPD technical training
Surge = very big change in current in a very shorttime = very high di / dt thus UL= most important
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GE Power Controls
Surge Protective Devices
ModularDevice
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Comfort Functions
SPD technical training
Summary
No single solution method is a cure all solution
Power supply disturbances are unique and distinctSolution methods are unique and distinct
All surge originators are currents; the network impedance converts these surge currents into(high) voltages
Surges are sporadic, have a high energetic content, have a high di/ dt and are destructiveSolution : Surge Protection Devices
Noise is systematic, has a low energetic content, is high frequent and is irritating
Solution : Filters or Sine Wave Tracking Devices
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GE Power Controls
Surge Protective Devices
M
odularDevice
s
Comfort Functions
Situating the problem
SPD terminology SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
Elfa
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GE Power Controls
Surge Protective Devices
M
odularDevice
s
Comfort Functions
Definitions
SPD : Surge Protection Device
TVSS : Transient Voltage Surge Suppresser
Class : The amount of energy the SPD is able to deviate towards the protective earth
I MAX : Peak discharge current an SPD can carry at least once I
NOM: Discharge current an SPD can carry at least 10 times
UP
: Residual voltage @ INOM
UC
: Maximum continuous operating voltage
SPD technical training
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GE Power Controls
Surge Protective Devices
M
odularDevice
s
Comfort Functions
Classes for SPDs
SPD technical training
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0
400
-400
0
400
-400
Surge Protective Devices
M
odularDevice
s
Comfort Functions
Envelope Clamping versus Sine Wave Tracking
Envelope Clamping
SPD technical training
Sine Wave Tracking
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GE Power Controls
Surge Protective Devices
M
odularDevice
s
Comfort Functions
Situating the problem
SPD terminology SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
Elfa
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GE Power Controls
SPD Technology
V - I characteristics Device Leak- Follow Clamping Energy Capaci- Response Costtype age on I voltage capa- tance time
bility
Ideal zero no low high low fast low
device to low or high
Zinc oxyde low no moderate high moderate fast lowvaristor to low to high
Zener low No low low Low fast high
Crowbar low yes low medium Low fast moderateZener - SCR latching
combination holding I
Surge Protective Devices
M
odularDevices
Comfort Functions
SPD technical training
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SPD Technology
V - I characteristics Device Leak- Follow Clamping Energy Capaci- Response Costtype age on I voltage capa- tance time
bility
Sparc zero yes high high low slow lowgap ignition to high
low clamp
Triggered zero yes lower high low moderate highsparc ignitiongap low clamp
Selenium very no moderate moderate high fast highhigh to high to high
Silicon high no high high high fast relativecarbide low
varistor
Surge Protective Devices
SPD technical training
M
odularDevices
Comfort Functions
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gP. 28 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
Spark-Gap V - I - plot
SPD technical training
MOV V - I - plot
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Surge Protective Devices
M
odularDevices
Comfort Functions
SPD technical training
GEPC SurgeGuard SPDs
Class 1 : Closed spark-gap technology
Class 2 : MOV-technology
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gP. 30 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection
Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
Elfa
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gP. 31 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
TT - Earthing System
SPD technical training
ElfaC f F i
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Surge Protective Devices
M
odularDevices
Comfort Functions
TT - Earthing System
SPD technical training
ElfaC f F i
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gP. 33 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
IT - Earthing System
SPD technical training
ElfaC f t F ti
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gP. 34 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
TN-S - Earthing System
SPD technical training
ElfaComfort Functions
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gP. 35 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
TN-C - Earthing System
SPD technical training
ElfaComfort Functions
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Surge Protective Devices
M
odularDevices
Comfort Functions
SPD technical training
Summary Single Pole or Multi Pole SPD
Single Pole
* IT
* TN-C or TN-C-part of a TN-CS
Multi Pole* IT
* TN-S or TN-S-part of a TN-CS
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gP. 37 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection
Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
ElfaComfort Functions
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gP. 38 GE Power Controls
Surge Protective Devices
M
odularDevices
Comfort Functions
SPD technical training
Why cascading SPDs ?
Caution :
The SPD with the highest MAX shouldcarry the bulk of the currentin case a high I
MAXtogether
with a low UPis required
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Surge Protective Devices
M
odularDevices
Comfort Functions
SPD technical training
Correct cascading
ElfaComfort Functions
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gP. 40 GE Power Controls
Surge Protective Devices
M
odularDevices
f
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
ElfaComfort Functions
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gP. 41 GE Power Controls
Facility without protection
Surge Protective Devices
M
odularDevices
f
SPD technical training
100.000 Amps20.000 Volts
100.000 Amps20.000 Volts
Service entrance
Step-downTransformer
Branch panel
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Surge Protective Devices
M
odularDevices
f
Fully protected facility
SPD technical training
100.000 Amps20.000 Volts
3.000 Volt Transient
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Surge Protective Devices
M
odularDevic
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Cost / Knowledge
SPD technical training
INCREASING COST OF POWER CONDITIONING
INCREASING KNOWLEDGE OF EQUIPMENT SENSITIVITY
UTILITY
SOURCE
SERVICE
ENTRANCE
BRANCHPANELS
CONTROLS
LIGHTING
PROCESSOR
BRANCH
PANELS
FULL FACILITY
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gP. 44 GE Power Controls
Surge Protective Devices
M
odularDevic
es
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection
Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
ElfaComfort Functions
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gP. 45 GE Power Controls
Surge Protective Devices
M
odularDevic
es
Selecting the correct SPD (1)
IMAX
Facility exposure risk (FER - level) Keraunic level Geometry of the facility
Environment The way in which the power is distributed Facility function and value (FF& V- factor) Mission critical aspect Value of the equipment to protect
UP
Energy supply network
SPD technical training
ElfaComfort Functions
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Surge Protective Devices
M
odularDevic
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SPD technical training
Selecting the correct SPD (2)
- Class 2 (8/20s) (MOV technology)
Network IT or TN-C Single Pole SPD TT or TN-S Multi Pole SPD
Un Imax / Up 2.5kV 1.8kV 1kV 2.5kV 1.8kV 1kV
230V 20kA SG SP 2 20 2 SG SP 2 20 2 SG SP 2 20 2 SG MM 2 20 2 SG MM 2 20 2 SG MM 2 20 2
45kA SG SP 2 45 2 SG SP 2 45 2 SG SP 2 45 2 SG MM 2 45 2 SG MM 2 45 2 SG MM 2 45 2
65kA SG SP 2 65 2 SG SP 2 65 2 (1)
400V 20kA SG SP 2 20 4 SG SP 2 20 4 (1) SG MM 2 20 4 SG MM 2 20 4 SG MM 2 20 4
45kA SG SP 2 45 4 (1) (1) SG MM 2 45 4
SG MM 2 45 4
SG MM 2 45 465kA SG SP 2 65 4 (1) (1) SG MM 2 80 4 SG MM 2 80 4 (1)
Note 1: If the protection level cannot be reached by using only one SPD, appropriate cascading is necessary. Example: To pro-tect computer equipment in a facility with a high FER and a level 1 FF&V and with an IT or TN-C earthing system, according to table5 a 65kA SPD with a UP=1kV is required but not available. Therefore cascading a SG SP 2 65 2 upfront of a SG SP 2 20 2 down-
stream, with a SG COIL xx in between if required would be the best solution.
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Surge Protective Devices
M
odularDevic
es
Selecting the correct backup MCB
Why a backup MCB is needed
SPD is NOT a line - protection device
Backup for the internal thermal fuse
Isolating the SPD for maintenance
To be effective the breaker or fuse directly up-front of the SPD should be capable to cut-off thetheoretical short-circuit current at the place where the SPD is installed
SPD technical training
Short-circuit interruptive capacity
65 / 80 kA EP100
45 kA EP60
20 kA EP30
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gP. 48 GE Power Controls
Surge Protective Devices
M
odularDevic
es
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection
Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
ElfaComfort Functions
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gP. 49 GE Power Controls
Surge Protective Devices
M
odularDevic
es
Installation guidelines (1)
Install a high quality protective earthand avoid groundloops
SPD technical training
ElfaComfort Functions
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Surge Protective Devices
M
odularDevic
es
Installation guidelines (2)
Keep lead length short and use Kelvin connections
SPD technical training
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Surge Protective Devices
M
odularDevic
es
Installation guidelines (3)
Install the SPD as close as possible to the backup MCB
Install the SPD as close as possible to the equipment to be protected
SPD technical training
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Surge Protective Devices
M
odularDevic
es
Installation guidelines (4)
Avoid installing an SPD downstreamof a sensitive RCD
SPD technical training
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Surge Protective Devices
M
odularDevic
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Installation guidelines (5)
Bound wires together
Avoid sharp bending and winding-up of conductors
Here comes a photo illustrating wires not bound together
Here comes a photo illustrating wires being bound together
Here comes a photo illustrating wires being bend and being coiled- up
Here comes a photo illustrating the wires being correctly installed
SPD technical training
ElfaComfort Functions
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gP. 54 GE Power Controls
Surge Protective Devices
M
odularDevic
es
Situating the problem
SPD terminology
SPD technology
Different earthing systems require different SPD s
Cascading of SPD s
Whole facility protection
Correct dimensioning of the SPD and of the backup MCB
Installation guidelines
GEPC SurgeGuard SPD features and benefits
SPD technical training
ElfaComfort Functions
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Surge Protective Devices
M
odularDevic
es
Features and benefits (1)
Range
* Class 1
* Class 2 Single pole plug-in, Multi-pole monoblock
* Inductor coils
* Sine wave tracking module
SPD technical training
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Surge Protective Devices
ModularDevic
es
Features and benefits (2)
Technical performances
* High quality MOVs
* Lowest UPfor comparable I
NOMs
* High quality DIN-rail clip with very good grip
* High quality, long term stability terminals
* Fool-proof plug-in devices
SPD technical training
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Surge Protective Devices
ModularDevic
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Features and benefits (3)
User-interface
* Clear and straightforward front- and side-pad print
* SPD - healthy indication
* Auxiliary contact for remote monitoring
SPD technical training
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Surge Protective Devices
ModularDevic
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Features and benefits (4)
Connectivity
* Large terminal capacity (50mm)
* Loss-proof pozidriv terminal screws
* Terminals aligned with terminals of ElfaPlus MCBs, RCBs and RCDs
* Pin-and fork-busbar connection possible
SPD technical training
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Surge Protective Devices
ModularDevic
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Features and benefits (5)
Complete range according to wide range of standards and regulations
* IEC 61643-1, IEC1643-1
* EN 61024-1, EN61000-4-4, EN61000-4-5
* UL1449-2
* VDE 0110-1, VDE 0185 part 100, VDE 0185-103, VDE 0675-6 (A1 & A2), VDE 0100-534/A1
* BS 6651 (1992)
* AS 1768 (1991)
* ANSI C62.41
SPD technical training