mr.shahabb elk 3
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© ABB GroupMarch 26, 2014 | Slide 2
Definition of Hybrid Switchgear as per IEC 62271-205
Compact switchgear assemblies consist either of
components of air-insulated switchgear (AIS) or of a
combination of air-insulated switchgear and gas-
insulated switchgear (GIS), so called mixed
technology switchgear (MTS)
HV ComponentsELK HybridConventional AIS Busbar
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© ABB GroupMarch 26, 2014 | Slide 3
Product Positioning
Breaker and
Modules
AIS
Conventional
LTB, DCB P r o d u c t L i n e
P r o d
u c t
F a m
i l y HV Components
Capacitors,
Instrument
Transformers,
Surge Arrestors
HV Components
GIS or Breaker
and Modules
Capacitors,Instrument
Transformers,
Surge Arrestors
ELK Hybrid
GIS
GIS
ELK System
Surge Arrestors
HV Components
MTS
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© ABB GroupMarch 26, 2014 | Slide 4
ELK Hybrid Switchgear
Gas insulated switching module
with more than one integrated high voltage devices
circuit breaker
earthing switch
current transformer
bushing
disconnector
voltage transformer
high speed earthing
switch
surge arrestor
cable end box
transformer direct
connection
busduct
ELK Hybrid customized ELK Hybrid standard
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 5
ELK Hybrid differentiation
ELK Hybrid customized ELK Hybrid standard
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 6
Proven technologySame components in GIS and ELK Hybrid
Product M mt
circuit breaker
earthing switch
current transformer
bushing
disconnector
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ELK Hybrid Switchgear Standard Module
© ABB GroupMarch 26, 2014 | Slide 7
Product M mt
circuit breaker
earthing switch
current transformer
bushing
disconnector
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ELK Hybrid Switchgear Diameter in 1 1/2, 6 Bays
© ABB GroupMarch 26, 2014 | Slide 8
Product M mt
ELK Hybrid Standard
Module
Conventional equipment
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ELK Hybrid Switchgear Diameter in 1 1/2, 6 Bays
© ABB GroupMarch 26, 2014 | Slide 9
Product M mt
ELK Hybrid Standard
Module
Conventional equipment
Fast, simple to integrate
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ELK Hybrid Switchgear Diameter in 1 1/2, 6 Bays
© ABB GroupMarch 26, 2014 | Slide 10
Product M mt
ELK Hybrid Standard
Module
Conventional equipment
Compact footprint
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ELK Hybrid Switchgear Customized Module, double busbar
© ABB GroupMarch 26, 2014 | Slide 11
circuit breaker
earthing switch
current transformer
bushing
disconnector
Fast acting earthing
switch
Connection elements
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ELK Hybrid Switchgear Customized Module, double busbar
© ABB GroupMarch 26, 2014 | Slide 12
ELK Hybrid Customized
Modul
Conventional equipment
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ELK Hybrid Switchgear Customized Module, double busbar
© ABB GroupMarch 26, 2014 | Slide 13
ELK Hybrid Customized
ModulFull flexibility to adapt to customer
needs, i.e. busbar configuration
Conventional equipment
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Proven technology
© ABB GroupMarch 26, 2014 | Slide 14
ELK components reliability
Outdoor experience since 1974
i.e. Live tank SF6 circuit breakers
three times higher major failure
frequency than GIS or metal
enclosed units;
CIGRE VALUES
Product M mt
5 year warranty
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© ABB GroupMarch 26, 2014 | Slide 15
Reduced execution time
Engineering
Installation
Delivery
Site Preparation
Depending on configuration and voltage level
Time savings can be achieved by
Engineering Standardization 20%
Site Preparation 50%
Delivery 30%
Installation 20%
Engineering
Installation
DeliverySite Preparation
H y b r i d
A I S
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 16
Reduced execution time
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 17
Small footprint
ConventionalAIS
13’104m2
100%
3’786m2
29%
HybridAIS
up to 70% reduction
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 18
Operational safety
Drives are accessible from
ground level
Inspection from ground level
to view ports
Product M mt
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Simple integration
© ABB GroupMarch 26, 2014 | Slide 19
Product M mt
Mount bushings
LCC, SC and wiringGas filling
Commissioning of entire MTS
installation
Placing modules
HV-Test
for quality insurance(transport damages)
Product supplier Substation Integrator
LCC SC
Civil work, S/S earthing
module earthing
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© ABB GroupMarch 26, 2014 | Slide 20
Multi purposes
AIS Extensions
Retrofit of AIS
New Installation
Product M mt
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© ABB GroupMarch 26, 2014 | Slide 21
Technical RatingsELK Hybrid
Technical Data ELK-3 420 Hybrid
Rated voltage kV 420
Rated power-frequency withstand voltage kV 650
Rated power-frequency withstand voltage across open
contacts
kV 800
Rated lightning impulse withstand voltage kV 1425
Rated lightning impulse withstand voltage across open
contacts
kV 1425+345
Rated switching impulse withstand voltage kV 1050
Rated switching impulse withstand voltage across open
contacts
kV 1050+345
Rated frequency Hz 50 / 60
Rated continuous current A 4000
Rated short-time withstand current kA 63
Rated peak withstand current kA 170
Bus Transfer switching current A/V 1600 / 300
3200 / 300
Ambient temperature °C standard -30 / +55
mixed gas or
heating mats -50 / +55
Creepage distance of bushing mm/kV 31
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Fast acting disconnector ELK-TK3S
Bus-transfer switching
ABB Power Products High Voltage, Gas-Insulated Switchgear
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ELK-TK3S
Disconnectors can be used for bustransfer switching, e. g. in double or
multiple busbar arrangements of
SF6 gas insulated substations (GIS).
Switching sequence for the current
transfer in a GIS with double busbar:
Closing of disconnector No. 2 yields
distribution of the load current “I” onto
the two parallel paths “I1” and “I2” ac-
cording to the relation of the impe-
dances of both sections. Opening of
disconnector No. 1 in the third scheme
leads to the transfer of the load current
part “I1” from bus A to bus B.
Bus-transfer switching
© ABB Group
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Rated voltage Ur kVA
Air-insulated
disconnectors
V r.m.s.
Gas-insulated disconnectors
V r.m.s.
52
72.5
100
123
145170
110 10
245
300
362
20020
420
300550800
40
IEC: The value of the rated bus-transfer current for both air- and gas-insulated
disconnectors shall be 80 % of the rated normal current. It will normally not
exceed 1600 A, irrespective of the rated normal current of the disconnector.
Rated bus-transfer voltages for disconnectorsIEC 62271-102
© ABB Group
IEC 1600 A / ABB 3200 A
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ELK-TK3S
All disconnectors of ABB type ELK are tested according to
IEC 62271-102 and they fulfilled completely the IEC
requirements.
References: IEC 62271-102, Alternative current
disconnectors and earthing switches; Annex B, Bus-
transfer current switching by disconnectors
Conclusion
© ABB Group
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© ABB GroupMarch 26, 2014 | Slide 26
ELK-TK3SType test at PHELA performed successfully
3200 A
300 V
100 CO, DIT
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ELK-TK3SType tests archived
Type test archived
Mechanical endurance 10000 CO 3-ph
Bus charging current switching TD1, TD2, TD3
Operation at limit temperature -30 °C / +55 °C
Bus transfer current switching 3200 A / 300 V
© ABB GroupMarch 26, 2014 | Slide 27
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ELK-TK3SExample ELK-3 Hybrid Switchgear, 420 kV
© ABB Group
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