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HMS Medium Voltage Air-Insulated
Metal-Clad SwitchgearInternalArc-Resistant
ANSI/IEEEC37.20.2andC37.20.7
HMS series, HYUNDAI Medium Voltage Air-Insulated Metal-Clad Switchgear, provides various
benefits with its safe, reliable features, and compact design.ANSI/IEEE C37.20.2 and C37.20.7
4 / HYUNDAI ELECTRIC
HMS series, Built by Hyundai Electric & Energy Systems Co.,Ltd ISO90001 facilities.Designed in accordance with ANSI/IEEE C37.20.2.
Metal-Clad Switchgear
Characteristics
ApplicationUtility and Power Plants• Transforming stations• Switching stations • Power generation stations• Main and auxiliary switchgear
Industry• Chemical industry • Petroleum industry• Iron and steel works• Automobile industry• Oil and gas pipelines• Textile, paper and food industries• Rolling mills
Marine• Drilling rigs• Offshore flatforms and FPSO• Container ships• Passenger ships• Tanker ships• Bulk ships
Services and Transport• Shopping malls• Hospitals• Large infrastructure and civil works• Airports, ports
Features• Functional compartments separated by metal grounded partitions• Draw-out circuit breaker construction• Integral breaker racking mechanism with self-aligning and self-coupling primary and secondary disconnecting device • MOC (Mechanism operated cell) and TOC (Truck operated cell)• All parts easily accessible, minimum of maintenance• Simple and flexible design • Easy installation• Breakers interlocked to prevent sliding into service position from test position, and vice versa while in the closed position• Low voltage compartment to accommodate instruments, meters, and relays• Main busbar system, fully insulated, housed in isolated compartment• Dedicate voltage transformer section mounted on withdrawable truck
HYUNDAI ELECTRIC / 5
Construction
VT or CPT
Low VoltagePanel
1,200 ACircuit
Breaker
VT or CPT
Low VoltagePanel
2,000 ACircuit
BreakerVT or CPT
VT or CPT
Low VoltagePanel
VT or CPT
Low VoltagePanel
3,000 A (4,000 A)Circuit
BreakerVT or CPT
Low VoltagePanel
3,000 A (4,000 A)Circuit
Breaker
Low VoltagePanel
1,200 ACircuit
Breaker
2,000 ACircuit
Breaker
Low VoltagePanel
1,200 ACircuit
Breaker
2,000 ACircuit
Breaker
VT or CPT
Low VoltagePanel
2,000 ACircuit
Breaker
Low VoltagePanel
1,200 ACircuit
Breaker
1,200 ACircuit
Breaker
VT or CPT
Low VoltagePanel
1,200 ACircuit
Breaker
Low VoltagePanel
1,200 ACircuit
Breaker
2,000 ACircuit
Breaker
101" (Extended)
91" (Standard)
101" (Extended)
91" (Standard)
1,200 A or2,000 A
1,200 A or2,000 A
Arc Relief Ducts (Option)
3,000 A
Arc Relief Ducts (Option)
Typical Section Views
Typical Compartment Arrangements
6 / HYUNDAI ELECTRIC
Construction
Metal-Clad Switchgear
Voltage(kV)
Power frequencywithstand, 1 min.
(kV rms)
Impulse withstand (kV peak)
Rated current(A)
Short-timewithstand current
3 sec. (kA rms)
Momentarywithstand current
(kA peak)
Internal arcwithstand
current
4.76 19 601,200, 2,000
3,000, 4,000 (FC)50 130 50 kA/0.5 sec.
15 36 951,200, 2,000
3,00040 104 40 kA/0.5 sec.
38 80 1501,200, 2,000
3,00040 104 40 kA/0.5 sec.
Special ToolsSpecial tools are supplied• Hand crank for breaker trucks• Manual charging handle for circuit breakers• Trolley for breaker truck removal
Operating ConditionsSwitchgear is intended for use under normal indoor conditions:• Ambient temperature 40 ˚C max.• Altitude 3,000 ft above sea level max.• Relative humidity 95 % max.
Switchgear for special operating conditions is available - Please consult with factory
Accessories and OptionsAll switchgear can be customized for specific applications and requirements. Some of the available options are:• Voltage transformers• Current transformers• Zero sequence current transformers• Protective relaying• Space heaters• Meters• Controls and control indicators• Remote control and mimic panels• Surge absorber
※ The (FC) means that the fan cooling is used in the switchgear and 4,000 A fan cooled rating is achieved using a 3,000 A circuit breaker.
Electrical Characteristics
Rated voltage (kV)
Width (inches)
Depth (inches)
Height (inches)
Approximate weight (lbs.)
4.76, 15 36 91 95 4,000
38 42 129 95 5,000
Cubicle Dimensions
HYUNDAI ELECTRIC / 7
Vacuum Circuit Breakers
Vacuum circuit breaker Breaker cradle and shutters in switchgear breaker cell
ANSI/IEEE C37.06 and C37.09
Voltage(kV rms)
MVAthreephase
Continuouscurrent
(A)
Max.voltage
(kV rms)
Lowfrequencywithstand(kV rms)
Impulsewithstand(kV peak)
Interruptingsymmetrical
(kA)
Short-timewithstand
current3 sec.
Close andlatch
(kA rms)
Interruptingtime
(Cycles)
4.16 350
1,200,2,000,
3,000, 4,000A (FC)
4.76 19 60 50 50 78 3
13.8 1,0001,200,2,000,3,000
15.0 36 95 40 40 62 3
33 2,0001,200,2,000,3,000
38.0 80 150 40 40 62 5
Electrical Characteristics
Nominal control voltage
Spring charge motor
Closing coil
Tripping coil
48 V DC 36-56 36-56 28-56
125 V DC 100-140 100-140 70-140
250 V DC 200-280 200-280 140-280
120 V AC 104-127 104-127 104-127
240 V AC 208-254 208-254 208-254
Operating Voltage Range
Bundang Office 5F,55,Bundang-ro,Bundang-gu,Seongnam-si,Gyeonggi-do,Korea
(Sales&Marketing) Tel:82-31-8006-6640 Fax:82-31-8006-6897
Ulsan 700Bangeojinsunhwan-doro,Dong-gu,Ulsan,Korea
(Factory) Tel:82-52-202-8114 Fax:82-52-202-8100
Atlanta 6100AtlanticBoulevard,Norcross,GA30071,USA
Tel:1-678-823-7839 Fax:1-678-823-7553
Frankfurt MendelssohnStrabe55-59Frankfurt60325,Germany
Tel:49-69-4699-4988
Moscow WorldTradeCenter,Ent.3#703,KrasnopresnenskayaNab.12,Moscow,123610,Russia
Tel:7-495-258-1381 Fax:7-495-258-1382
Osaka I-Room5thFloorNagahoriPlazaBldg.2-4-8MinamiSenba,Chuo-ku,Osaka,542-0081,Japan
Tel:81-6-6261-5766~7 Fax:81-6-6261-5818
Bangkok 19thFloor,Unit1908,SathornSquareOfficeTower,98NorthSathornRoad,Silom,Bangrak,Bangkok,10500Thailand
Tel:66-2-115-7920
Riyadh OfficeNo.230,2ndFloor,4thAkariyaPlaza,OlayaStreet,POBox8072,Riyadh11485,SaudiArabia
Tel:966-11-464-4696 Fax:966-11-462-2352
Al Khobar 7thFloor,AlKhobarBusinessGateBuildingPOBox20753,AlKhobar-31952,KingdomofSaudiArabia
Tel:966-013-849-3876~7
Dubai Unit205,Building4,EmaarSquare,SheikhZayedRoad,Pobox252458,Dubai,UAE
Tel:971-4-425-7995 Fax:971-4-425-7996
Sofia 1271Sofia41,RojenBlvd.,Bulgaria
Tel:359-2-803-3200,3220 Fax:359-2-803-3203
Alabama 215FolmarParkway,Montgomery,AL36105,USA
Tel:1-334-481-2000 Fax:1-334-481-2098
Yangzhong No.9XiandaiRoad,XinbaScientificandTechnologicZone,Yangzhong,Jiangsu,P.R.C.Zip:212212,China
Tel:86-511-8842-0666,0500 Fax:86-511-8842-0668,0231
www.hyundai-electric.com
HEES-SE-B42-01,2018.1Designedbydesignwat