MV / HV Power Distribution Solutions
Corp.
WE DRIVE THE WORLD

From substations to end-users, we provide a comprehensive portfolio for energy distribution through the entire supply chain — delivering dependability, security, and innovation.

72.5kV
Max Voltage
800kV
HV Insulator
362kV
GIS Rating
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Product Line 01

Underground Switchgear

Ensuring dependable power supply with heightened resilience — our MV distribution products prioritize reliability and efficiency of your distribution grid.

SF6 Gas / Dry Air Switchgear
Underground · Up to 38kV
Specifications
Insulation TypeSF6 Gas or Dry Air
Maximum VoltageUp to 38 kV
BILUp to 150 kV
1-min Withstand VoltageUp to 70 kV
Continuous Current630 A
Momentary Current (10 cyc)12.5 kA
1-sec Withstand Current12.5 kA
Fault Interrupting Current12.5/20.0 kA
Load Switching630 A
Fault Making12.5/20.0 kA
Standards
IEEE C37.74 IEEE C37.62
Key Features
  • Superior overcurrent protection via trusted vacuum fault interrupters
  • Resettable vacuum fault interrupter — prompt service restoration
  • Eliminates extra cost of stocking and replacing fuses
Solid Dielectric Switchgear
Underground · Up to 38kV
Specifications
Insulation TypeSolid Dielectric
Maximum VoltageUp to 38 kV
BILUp to 150 kV
Continuous Current630 A
Fault Interrupting Current12.5 kA
Short-Time Current Withstand12.5 kA
Standards
IEEE C37.74 IEEE C37.62
Key Features
  • Fault current interruption via self-powering by line current (CT circuits)
  • Alternatively utilizes magnetic actuators for fault interruption
  • Eco-friendly solid insulation — no SF6 gas required
Product Line 02

Overhead Reclosers / Switches

Comprehensive overhead line protection from substations to end-users — high-speed interruption and intelligent switching for smart grid applications.

Solid Dielectric Recloser
Overhead · Up to 72.5kV
Specifications
Insulation TypeSolid Dielectric
Maximum VoltageUp to 72.5 kV
BILUp to 350 kV
1-min Withstand VoltageUp to 140 kV
Continuous CurrentUp to 2,500 A
Interrupting Current (sym.)Up to 31.5 kA
Short-Circuit MakingUp to 81.9 kApeak
Short-Time WithstandUp to 3 seconds
Interrupting Time Options3 / 1.2 cycles · Pulse Function
Standards
IEEE C37.60
Key Features
  • Bio-Epoxy or Bio-Epoxy/Silicone hybrid encapsulation
  • High-speed interrupting time: 1.2 cycles and pulse function
  • Current and Voltage sensors with high accuracy for smart meter
  • Meticulously designed and tested to IEEE C37.60 standard
Solid Dielectric Load Break Switch
Overhead · Up to 38kV
Specifications
Insulation TypeSolid Dielectric
Maximum Voltage38 kV
BILUp to 170 kV
1-min Withstand VoltageUp to 70 kV
Continuous CurrentUp to 630 A
Peak Withstand Current (asym)Up to 41.6 kA
Short-Time Current (3sec, rms)Up to 16.0 kA
Short-Time WithstandUp to 3 seconds
Standards
IEEE C37.74
Key Features
  • Bio-Epoxy or Bio-Epoxy/Silicone hybrid encapsulation
  • Integrated sensing: 3 current/voltage (load side), 3 voltage (source side)
  • High accuracy for smart meter applications
  • Designed and tested to IEEE C37.74 standard
Complete Portfolio

Full Product Range

A comprehensive portfolio spanning MV to HV — from instrument transformers and insulators to GIS and substation automation.

Instrument Transformers
MV up to 52kV · HV up to 170kV · LPIT up to 362kV
MV (Epoxy Resin) · up to 52kV
  • Indoor / Outdoor (Winding & Ring)
  • Water-proof (Immersible) Type
  • Metal-claded Type
  • Voltage Sensor Type
  • CT-VT Combined (Epoxy & Oil)
HV (Gas) · up to 170kV
  • Single or Three Phases
Low Power Instrument Transformer (LPIT) · up to 362kV
  • Single or Three Phases
  • Metal-claded Type (HV) / Epoxy Type (MV)
  • Combined with Merging Unit
Insulators
MV up to 52kV · HV up to 800kV
MV Insulator · up to 52kV
  • Wall-through Bushing (1/3 Phase)
  • RMU Bushing / VCB Bushing
  • Cable Socket for GIS
  • Capacitive Voltage Detector
  • Housing Pole for LBS & Recloser
  • Spacer (3 Phase) for GIS
HV Insulator · up to 800kV
  • Spacer (Single or Three Phases)
  • Post, Terminal, Rod, Support
Transformer (Oil) & GIS
Transformer up to 72.5kV · GIS up to 362kV
Oil Transformer · up to 72.5kV
  • Pole-mounted (1/3 Phase)
  • Pad-mounted (1/3 Phase)
  • Power Transformer
Gas Insulated Switchgear · up to 362kV
  • Eco-friendly Gas (Novec, Dry air)
  • Double Busbar Type
  • Single Busbar for Railway
  • 72.5kV GIS (Two Phases)
  • 170kV GIS (Three Phases)
Substation Automation
IEC 61850 · Smart Grid
  • IEC 61850: WATCHER, GATEWAY, SPC
  • Thor Platform — advanced substation automation
  • Seamless integration with smart grid infrastructure

Contact Us

Phone (Rep.)
Address
34 Oseongseo-ro, Anjung-eup, Pyeongtaek-si,
Gyeonggi-do (17928), Korea