350KVA Trailer Inverter System for KTX High Speed Train

The Trailer inverter is a power converter for supplying 3 phase 440V power to a passenger car of KTX high speed railway. Developed the existing 335KVA GTO type inverter device as IGBT type of 350KVA and delivered 60 units to Korail

Specifications

· Input Voltage : 570VDC
· Output Voltage : 3 phase, 440Vrms
· Rated Power : 350KVA(max)

Test equipment for Trailer Inverter

The Back-to-Back Converter type trailer inverter test system is a device for efficient testing of large-capacity trailer inverter. It can perform low power full load test (350KVA) and verifies various protection operation and performance.

Specifications

· Input Voltage : 3 phase, 380Vrms
· Output Voltage : 570VDC
· Rated Power : 350KVA
· Controller : 32bit DSP

Excitation Chopper System

KTX high-speed railroad propulsion control system that receives direct current and is a power converter for generating field flux of synchronous motor. It is implemented as IGBT in existing GTO and Thyristor devices.

Specifications

· Input Voltage : 570VDC, 72VDC
· Output Current : 0 ~ 600A
· Maximum Power : 350KW
· Control method : PWM control
· Cooling method : Heat pipe(forced cooling)

Brake Chopper System

KTX high-speed railroad propulsion control system Power converter for energy regenerative and power generation braking of synchronous motor and existing GTO device implemented as IGBT.

Specifications

· Input Voltage : DC 0 ~ 3000V
· Output Current : 0 ~ 850A/Pulse, 1000A continuous
· Maximum Power : 2.2MW/Pulse Power
· Control method : PWM control
· Cooling method : Heat pipe(forced cooling)

Brake Chopper HV/HC Tester

It is a device capable of testing 3KV high voltage test and 800A current test by receiving normal commercial power (AC220V).

Features

Output waveform measurement and variable operation test, overcurrent protection function

Linear Actuator Inverter System

An inverter for power and control of a linear actuator used in a railway receiving DC voltage.

Specifications

· Input voltage: DC 100V
· Output voltage: 3 phase 100Vac
· Maximum output: 6KW
· Control method: PWM control
· Cooling: natural cooling

90KVA*2 Auxiliary Power System

It consists of two inverters with 90KVA rated output of C / I type. It receives single-phase AC input and supplies power to the auxiliary power load in the railway.

Specifications

· Input voltage: Single phase 334Vac
· Output voltage: 3 phase 0 ~ 440Vac (0.1 ~ 100Hz)
· Maximum output: 90KVA
· Control method: PWM control
· Cooling method: Forced air cooling

3.6KW Chiller Inverter System

Supply DC power and supply chiller of electric bus.

Specifications

· Input voltage: DC 618V
· Output voltage: Single phase 230Vac / 60Hz
· Maximum output: 3.6KW
· Control method: Single-phase uni-directional PWM control
· Cooling method: water-cooled

Diesel locomotive fuel consumption measuring device

It is a device that automatically measures and analyzes the exact amount of fuel used in diesel locomotives, and stores data. Real-time fuel consumption and average fuel consumption are shown in real time.

Configuration

Non-contact flow sensor, control unit, display unit, control power supply unit

40KVA Auxiliary Inverter System

This is a power converter that outputs the battery voltage of the vehicle to 3-phase AC voltage using Boost converter and VVVF inverter circuit.

Specifications

· Input voltage: DC 110V
· Output voltage: 3 phase 400Vac / 50Hz (VVVF / CVCF type)
· Rated output: 40KVA (0.8 cosin phi)
· Control method: SVPWM control
· Cooling: natural cooling

Electric Scooter Inverter System

Device that controls BLDC motor of electric scooter by inputting battery voltage.

Specifications

· Input voltage: DC 42V
· Rated power: 4KW (maximum 9KW)

Super-Capacitor Precharger

DC-DC converter device for initial charging of supercapacitors of fuel cell vehicle.

Specifications

· Input / output voltage: 0 ~ 450Vdc
· Input / output current: 0 ~ 300Amax
· Average Charge Current: 30A

Fuel Cell Scooter Converter

This is a lift-up type DC-DC converter that receives the output voltage of the fuel cell system of the scooter and supplies power to the scooter driving device.

Specifications

· Input voltage: 0 ~ 75Vdc
· Output voltage: 0 ~ 43.5Vdc
· Rated power: 1KW