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Gas Insulated Switchgear
Gas Insulated Switchgear
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Our switchgear facility, former Ganz Electric, has a history of over a 130 years as a high technology company with a strong reputation for global engineering capabilities. Currently the com-pany expertise is dedicated to two main HV manufacturing units: HV switchgear and power transformers. The product line of HV switchgear is focused on insulated switchgear (GIS), provided for application voltage range of 72.5-300 kV, normal currents up to 4000 A and short-time current of 50 kA.
Many years of working experiences and the continuous technical research and development have improved the following impor-tant general features of the new GIS type substations: small space requirement, easy and fast installation, high reliability, resistance against environmental and climatic effects, maximal safety for the personnel, minimal maintenance and long service life.
All GIS products were developed by R&D centre located in Budapest. Experienced development engineers, proven design and analysis software ensure optimised design to meet the requirements of all relevant IEC standards. Calculations include mechanical and electrical Finite Element Method analysis, as well as gas flow analysis for circuit breaker design.
Design department, factory production, assembly workshop and test stations are working on the basis of a strict Quality Assur-ance System in compliance with the ISO 9001 standard. The fac-tory also operates an Environment Management System certified to ISO14001 and a Health & Safety Management System OHSAS 18001. The systematic inspections and test measurements ensure the conformity of the end product to the Client’s require-ments and to International standard specifications.
OUR SWITCHGEAR FACILITY IN HUNGARY
MAIN FEATURESGeneral features of GT01 type compact GIS
• Suitable for indoor and outdoor installation• Continuous earthed enclosures assuring maximum protection
against electrical shocks for operating personnel• Light-weight corrosion resistant aluminium enclosures• Three-phase enclosed modular system with uniform connection
flanges• Sealing system ensures excellent gas tightness• 3-phase epoxy resin barrier and support insulators• Several gas compartments, each equipped with gas filter, rupture
disc, contact manometer and gas valves• Aluminium current carrying tubes and tulip type contacts with
copper fingers, silver plated at the contact surfaces• Two bays per shipping unit assembled and factory tested en-
sures quick site installation• Spring drive operated circuit breaker with 3rd generation arcing
chamber • Combined disconnector-earthing switches with inspection win-
dows
Type GT01
Rated voltage 145 kV
Application range 72.5-145 kV
Rated power frequency withstand voltage
- phase to earth 275 kV
- across isolation distance 315 kV
Rated lightning impulse withstand voltage
- phase to earth 650 kV peak
- across isolation distance 750 kV peak
Rated frequency 50 Hz
Rated normal current 3150 A
Rated short-time current (3 sec.) 40 kA
Rated peak withstand current 100 kA peak
Technical data
GT01
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1 Ciruit breaker2 Combined disconnector and maintenance
earthing switch3 High-speed earthing switch4 Current transformer5 Voltage transformer6 Cable sealing end enclosure
All dimensions in millimetres.
Feeder bay with VT
Bus coupler bay
Transformer bay
Busbar earthing & measuring bay
OUTLINE DRAWINGS
MAIN FEATURESGeneral features of GAI3 type compact GIS
• Suitable for indoor and outdoor installation• Continuous earthed enclosures assuring maximum protection
against electrical shocks for operating personnel• Light-weight corrosion resistant aluminium enclosures• Single-phase enclosed modular system with uniform connection
flanges• Sealing system ensures excellent gas tightness• Single-phase epoxy resin barrier and support insulators• Several gas compartments, each equipped with gas filter, rupture
disc, contact manometer and gas valves• Aluminium current carrying tubes and tulip type contacts with
copper fingers, silver plated at the contact surfaces• Hydraulic drive operated puffer type circuit breaker• Disconnectors and earthing switches with inspection windows
Technical data
Type GAI3 GAI3
Rated voltage 245 kV 300 kV
Application range 170-300 kV 170-300 kV
Rated power frequency withstand voltage
phase to earth 460 kV 380 kV
across isolation distance 530 kV 435 kV
Rated lightning impulse withstand voltage
phase to earth 1050 kV peak
across isolation distance 1200 kV peak
1050+170 kV peak
Rated switching impulse withstand voltage
phase to earth 850 kV peak
across isolation distance 700+245 kV peak
Rated frequency 50 Hz 50 Hz
Rated normal current 3150 A 3150 A
Rated short-time current (3 sec.) 50 kA 40kA
Rated peak withstand current 130 kA peak
100 kA peak
GAI3
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Feeder bay with VT
Bus coupler bay
Transformer bay
Busbar earthing & measuring bay
1 Ciruit breaker2 Disconnector3 High-speed earthing switch4 Maintenance earthing switch 5 Current transformer6 Voltage transformer7 Cable-end enclosure
All dimensions in millimetres.
OUTLINE DRAWINGS
GAI 3-S
MAIN FEATURESGeneral features of GAI 3-S
• Continuously earthed assuring maximum protection against electrical shocks for operating personnel
• Modular system to fulfill user requirements• Light-weight corrosion resistant aluminum enclosures• Single-phase enclosed modular system with uniform
connection flanges• Sealing systems ensure excellent gas tightness• Single-phase epoxy resin barrier and support insulators• Several gas compartments, each equipped with gas filter,
rupture disc, contact manometer and gas valves• Aluminum current carrying tubes and tulip type contacts
with copper fingers, silver plated at the contact surfaces• Spring operated circuit breaker• Disconnectors and earthing switches with inspection
windows• Double motion circuit breaker: less energy needed• Compact design• CT cores are outside the gas area which reduces
the phase distance
Type GAI 3-S
Standard IEC 62271-1Rated voltage 245 kVApplication range 170-245 kV
Rated power frequency withstand voltage Phase to earth 460 kV Across isolation distance 530 kV
Rated lighting impulse withstand voltage Phase to earth 1050 kV peak Across isolation distance 1200 kV peak
Rated frequency 50 HzRated normal currect 4000 ARated short-time currect (3 sec) 50 kARated peak withstand current 135 kA peak
Technical data
9
OUTLINE DRAWINGS
Double busbar transformer bay Double busbar line bar
Double busbar earthing and measuring bay Double busbar bus coupler bay
Technical data
Type GAI1
Rated voltage 170 kV
Application range 145-170 kV
Rated power frequency withstand voltage
phase to earth 325 kV
across isolation distance 375 kV
Rated lightning impulse withstand voltage
phase to earth 750 kV peak
across isolation distance 860 kV peak
Rated frequency 50 Hz
Rated normal current 3150 A
Rated short-time current (3 sec.) 40 kA
Rated peak withstand current 100 kA peak
MAIN FEATURESGeneral features of GAI1 type compact GIS
• Suitable for indoor and outdoor installation• Continuous earthed enclosures assuring maximum protection
against electrical shocks for operating personnel• Light-weight corrosion resistant aluminium enclosures• Single/Three-phase enclosed modular system with uniform con-
nection flanges• Sealing system ensures excellent gas tightness• Epoxy-resin barrier and support insulators• Several gas compartments, each equipped with gas filter, rupture
disc, contact manometer and gas valves• Aluminium current carrying tubes and tulip type contacts with
copper fingers, silver plated at the contact surfaces• One bay per shipping unit assembled and factory tested ensures
quick site installation• Hydraulic drive operated puffer type circuit breaker• Disconnectors and earthing switches with inspection windows
CG offers 170 kV GAI1 for extensions of existing 132 kV and 170 kV installations
GAI1
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UKRAINE
PAKISTAN
TANZANIA
MYANMAR
VIETNAM
MALAYSIA
INDONESIA
CHINA
INDIA
MALTA
FINLAND
CURACAO
UNITED KINGDOM
BELGIUM
ICELAND
MOROCCO
ITALY
ALGERIA
GHANA
NORWAY
DENMARKTHE NETHERLANDS
TURKEY
ESTONIA
ROMANIA
HUNGARY
IRAQ
UNITEDARAB
EMIRATES
SYRIA
KUWAIT
QATAROMAN
IRAN
We have installed more than 1000 bays worldwide
REFERENCES
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UKRAINE
PAKISTAN
TANZANIA
MYANMAR
VIETNAM
MALAYSIA
INDONESIA
CHINA
INDIA
MALTA
FINLAND
CURACAO
UNITED KINGDOM
BELGIUM
ICELAND
MOROCCO
ITALY
ALGERIA
GHANA
NORWAY
DENMARKTHE NETHERLANDS
TURKEY
ESTONIA
ROMANIA
HUNGARY
IRAQ
UNITEDARAB
EMIRATES
SYRIA
KUWAIT
QATAROMAN
IRAN
FACTORY & SALES OFFICE HUNGARY
REGIONAL SALES OFFICES
EMEA
BelgiumCG Power Systems Belgium NVAntwerpsesteenweg 1672800 MechelenTel: +32 (0)15 283 [email protected]
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UKCG Power Solutions UK LimitedStaffordshire Technology Park7 Ferranti CourtStafford ST18 0LQTel: +44 1785 330 [email protected]
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AMERICAS
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ASIA PACIFIC
CG Power Systems IndonesiaKawasan Industri Menara Permai Kav. 10,Jl. Raya Narogong, CileungsiBogor 16820, IndonesiaT +62 21 823 04/[email protected]
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